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Add const qualifiers to functions where trivially possible. 

This will allow us in future to accept `const T &` anywhere it's
necessary to reduce the amount of copying.

This commit is quite conservative: it does not attempt very hard to
refactor code that performs incidental mutation. In particular
dogd and caches are not marked with the `mutable` keyword.
dogd will be eliminated later, opening up more opportunities to
add const qualifiers.

This commit also doesn't introduce any uses of the newly added const
qualifers. This will be done later.
pull/10/head
whitequark 2016-05-21 05:18:00 +00:00
parent 91e18eed73
commit 20d87d93c5
26 changed files with 609 additions and 613 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
src/bsp.cpp
View File

@ -36,7 +36,7 @@ SBsp3 *SBsp3::FromMesh(SMesh *m) {
return bsp3; return bsp3;
} }
Vector SBsp3::IntersectionWith(Vector a, Vector b) { Vector SBsp3::IntersectionWith(Vector a, Vector b) const {
double da = a.Dot(n) - d; double da = a.Dot(n) - d;
double db = b.Dot(n) - d; double db = b.Dot(n) - d;
ssassert(da*db < 0, "Expected segment to intersect BSP node"); ssassert(da*db < 0, "Expected segment to intersect BSP node");
@ -401,7 +401,7 @@ void SBsp3::Insert(STriangle *tr, SMesh *instead) {
return; return;
} }
void SBsp3::GenerateInPaintOrder(SMesh *m) { void SBsp3::GenerateInPaintOrder(SMesh *m) const {
// Doesn't matter which branch we take if the normal has zero z // Doesn't matter which branch we take if the normal has zero z
// component, so don't need a separate case for that. // component, so don't need a separate case for that.
@ -411,7 +411,7 @@ void SBsp3::GenerateInPaintOrder(SMesh *m) {
if(neg) neg->GenerateInPaintOrder(m); if(neg) neg->GenerateInPaintOrder(m);
} }
SBsp3 *flip = this; const SBsp3 *flip = this;
while(flip) { while(flip) {
m->AddTriangle(&(flip->tri)); m->AddTriangle(&(flip->tri));
flip = flip->more; flip = flip->more;
@ -424,7 +424,7 @@ void SBsp3::GenerateInPaintOrder(SMesh *m) {
} }
} }
void SBsp3::DebugDraw() { void SBsp3::DebugDraw() const {
if(pos) pos->DebugDraw(); if(pos) pos->DebugDraw();
Vector norm = tri.Normal(); Vector norm = tri.Normal();
@ -468,7 +468,7 @@ void SBsp3::DebugDraw() {
///////////////////////////////// /////////////////////////////////
Vector SBsp2::IntersectionWith(Vector a, Vector b) { Vector SBsp2::IntersectionWith(Vector a, Vector b) const {
double da = a.Dot(no) - d; double da = a.Dot(no) - d;
double db = b.Dot(no) - d; double db = b.Dot(no) - d;
ssassert(da*db < 0, "Expected segment to intersect BSP node"); ssassert(da*db < 0, "Expected segment to intersect BSP node");
@ -665,7 +665,7 @@ void SBsp2::InsertTriangle(STriangle *tr, SMesh *m, SBsp3 *bsp3) {
return; return;
} }
void SBsp2::DebugDraw(Vector n, double d) { void SBsp2::DebugDraw(Vector n, double d) const {
ssassert(fabs((edge.a).Dot(n) - d) < LENGTH_EPS, "Endpoint too close to BSP node plane"); ssassert(fabs((edge.a).Dot(n) - d) < LENGTH_EPS, "Endpoint too close to BSP node plane");
ssassert(fabs((edge.b).Dot(n) - d) < LENGTH_EPS, "Endpoint too close to BSP node plane"); ssassert(fabs((edge.b).Dot(n) - d) < LENGTH_EPS, "Endpoint too close to BSP node plane");

2
src/constraint.cpp
View File

@ -6,7 +6,7 @@
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
#include "solvespace.h" #include "solvespace.h"
std::string Constraint::DescriptionString() { std::string Constraint::DescriptionString() const {
const char *s; const char *s;
switch(type) { switch(type) {
case POINTS_COINCIDENT: s = "pts-coincident"; break; case POINTS_COINCIDENT: s = "pts-coincident"; break;

8
src/constrainteq.cpp
View File

@ -9,7 +9,7 @@
const hConstraint ConstraintBase::NO_CONSTRAINT = { 0 }; const hConstraint ConstraintBase::NO_CONSTRAINT = { 0 };
bool ConstraintBase::HasLabel() { bool ConstraintBase::HasLabel() const {
switch(type) { switch(type) {
case PT_LINE_DISTANCE: case PT_LINE_DISTANCE:
case PT_PLANE_DISTANCE: case PT_PLANE_DISTANCE:
@ -193,7 +193,7 @@ void ConstraintBase::ModifyToSatisfy() {
} }
} }
void ConstraintBase::AddEq(IdList<Equation,hEquation> *l, Expr *expr, int index) void ConstraintBase::AddEq(IdList<Equation,hEquation> *l, Expr *expr, int index) const
{ {
Equation eq; Equation eq;
eq.e = expr; eq.e = expr;
@ -201,12 +201,12 @@ void ConstraintBase::AddEq(IdList<Equation,hEquation> *l, Expr *expr, int index)
l->Add(&eq); l->Add(&eq);
} }
void ConstraintBase::Generate(IdList<Equation,hEquation> *l) { void ConstraintBase::Generate(IdList<Equation,hEquation> *l) const {
if(!reference) { if(!reference) {
GenerateReal(l); GenerateReal(l);
} }
} }
void ConstraintBase::GenerateReal(IdList<Equation,hEquation> *l) { void ConstraintBase::GenerateReal(IdList<Equation,hEquation> *l) const {
Expr *exA = Expr::From(valA); Expr *exA = Expr::From(valA);
switch(type) { switch(type) {

14
src/drawconstraint.cpp
View File

@ -40,7 +40,7 @@ static void LineCallback(void *fndata, Vector a, Vector b)
c->LineDrawOrGetDistance(a, b); c->LineDrawOrGetDistance(a, b);
} }
std::string Constraint::Label() { std::string Constraint::Label() const {
std::string result; std::string result;
if(type == ANGLE) { if(type == ANGLE) {
if(valA == floor(valA)) { if(valA == floor(valA)) {
@ -104,7 +104,7 @@ void Constraint::DoLabel(Vector ref, Vector *labelPos, Vector gr, Vector gu) {
if(dogd.drawing) { if(dogd.drawing) {
ssglWriteTextRefCenter(s, th, ref, gr, gu, LineCallback, this); ssglWriteTextRefCenter(s, th, ref, gr, gu, LineCallback, (void *)this);
} else { } else {
double l = swidth/2 - sheight/2; double l = swidth/2 - sheight/2;
l = max(l, 5/SS.GW.scale); l = max(l, 5/SS.GW.scale);
@ -461,7 +461,7 @@ void Constraint::DoArcForAngle(Vector a0, Vector da, Vector b0, Vector db,
Vector trans = Vector trans =
(*ref).Plus(gu.ScaledBy(-1.5*ssglStrCapHeight(Style::DefaultTextHeight()))); (*ref).Plus(gu.ScaledBy(-1.5*ssglStrCapHeight(Style::DefaultTextHeight())));
ssglWriteTextRefCenter("angle between skew lines", Style::DefaultTextHeight(), ssglWriteTextRefCenter("angle between skew lines", Style::DefaultTextHeight(),
trans, gr.WithMagnitude(px), gu.WithMagnitude(px), LineCallback, this); trans, gr.WithMagnitude(px), gu.WithMagnitude(px), LineCallback, (void *)this);
} }
} }
@ -921,7 +921,7 @@ void Constraint::DrawOrGetDistance(Vector *labelPos) {
if(dogd.drawing) { if(dogd.drawing) {
ssglWriteTextRefCenter("T", Style::DefaultTextHeight(), ssglWriteTextRefCenter("T", Style::DefaultTextHeight(),
textAt, u, v, LineCallback, this); textAt, u, v, LineCallback, (void *)this);
} else { } else {
dogd.refp = textAt; dogd.refp = textAt;
Point2d ref = SS.GW.ProjectPoint(dogd.refp); Point2d ref = SS.GW.ProjectPoint(dogd.refp);
@ -1105,7 +1105,7 @@ s:
(type == AT_MIDPOINT) ? "M" : NULL)); (type == AT_MIDPOINT) ? "M" : NULL));
ssglWriteTextRefCenter(s, Style::DefaultTextHeight(), ssglWriteTextRefCenter(s, Style::DefaultTextHeight(),
m.Plus(offset), r, u, LineCallback, this); m.Plus(offset), r, u, LineCallback, (void *)this);
} else { } else {
dogd.refp = m.Plus(offset); dogd.refp = m.Plus(offset);
Point2d ref = SS.GW.ProjectPoint(dogd.refp); Point2d ref = SS.GW.ProjectPoint(dogd.refp);
@ -1220,7 +1220,7 @@ void Constraint::GetEdges(SEdgeList *sel) {
dogd.sel = NULL; dogd.sel = NULL;
} }
bool Constraint::IsStylable() { bool Constraint::IsStylable() const {
if(type == COMMENT) return true; if(type == COMMENT) return true;
return false; return false;
} }
@ -1230,7 +1230,7 @@ hStyle Constraint::GetStyle() const {
return { Style::CONSTRAINT }; return { Style::CONSTRAINT };
} }
bool Constraint::HasLabel() { bool Constraint::HasLabel() const {
switch(type) { switch(type) {
case COMMENT: case COMMENT:
case PT_PT_DISTANCE: case PT_PT_DISTANCE:

13
src/drawentity.cpp
View File

@ -7,7 +7,7 @@
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
#include "solvespace.h" #include "solvespace.h"
std::string Entity::DescriptionString() { std::string Entity::DescriptionString() const {
if(h.isFromRequest()) { if(h.isFromRequest()) {
Request *r = SK.GetRequest(h.request()); Request *r = SK.GetRequest(h.request());
return r->DescriptionString(); return r->DescriptionString();
@ -137,7 +137,6 @@ void Entity::GenerateEdges(SEdgeList *el, bool includingConstruction) {
} }
lv.Clear(); lv.Clear();
} }
} }
SBezierList *Entity::GetOrGenerateBezierCurves() { SBezierList *Entity::GetOrGenerateBezierCurves() {
@ -211,14 +210,14 @@ Vector Entity::GetReferencePos() {
return dogd.refp; return dogd.refp;
} }
bool Entity::IsStylable() { bool Entity::IsStylable() const {
if(IsPoint()) return false; if(IsPoint()) return false;
if(IsWorkplane()) return false; if(IsWorkplane()) return false;
if(IsNormal()) return false; if(IsNormal()) return false;
return true; return true;
} }
bool Entity::IsVisible() { bool Entity::IsVisible() const {
Group *g = SK.GetGroup(group); Group *g = SK.GetGroup(group);
if(g->h.v == Group::HGROUP_REFERENCES.v && IsNormal()) { if(g->h.v == Group::HGROUP_REFERENCES.v && IsNormal()) {
@ -271,7 +270,7 @@ void Entity::CalculateNumerical(bool forExport) {
} }
} }
bool Entity::PointIsFromReferences() { bool Entity::PointIsFromReferences() const {
return h.request().IsFromReferences(); return h.request().IsFromReferences();
} }
@ -280,7 +279,7 @@ bool Entity::PointIsFromReferences() {
// routine for periodic splines (in a loop) or open splines (with specified // routine for periodic splines (in a loop) or open splines (with specified
// end tangents). // end tangents).
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
void Entity::ComputeInterpolatingSpline(SBezierList *sbl, bool periodic) { void Entity::ComputeInterpolatingSpline(SBezierList *sbl, bool periodic) const {
static const int MAX_N = BandedMatrix::MAX_UNKNOWNS; static const int MAX_N = BandedMatrix::MAX_UNKNOWNS;
int ep = extraPoints; int ep = extraPoints;
@ -413,7 +412,7 @@ void Entity::ComputeInterpolatingSpline(SBezierList *sbl, bool periodic) {
} }
} }
void Entity::GenerateBezierCurves(SBezierList *sbl) { void Entity::GenerateBezierCurves(SBezierList *sbl) const {
SBezier sb; SBezier sb;
int i = sbl->l.n; int i = sbl->l.n;

118
src/dsc.h
View File

@ -27,23 +27,23 @@ public:
static Quaternion From(Vector u, Vector v); static Quaternion From(Vector u, Vector v);
static Quaternion From(Vector axis, double dtheta); static Quaternion From(Vector axis, double dtheta);
Quaternion Plus(Quaternion b); Quaternion Plus(Quaternion b) const;
Quaternion Minus(Quaternion b); Quaternion Minus(Quaternion b) const;
Quaternion ScaledBy(double s); Quaternion ScaledBy(double s) const;
double Magnitude(); double Magnitude() const;
Quaternion WithMagnitude(double s); Quaternion WithMagnitude(double s) const;
// Call a rotation matrix [ u' v' n' ]'; this returns the first and // Call a rotation matrix [ u' v' n' ]'; this returns the first and
// second rows, where that matrix is generated by this quaternion // second rows, where that matrix is generated by this quaternion
Vector RotationU(); Vector RotationU() const;
Vector RotationV(); Vector RotationV() const;
Vector RotationN(); Vector RotationN() const;
Vector Rotate(Vector p); Vector Rotate(Vector p) const;
Quaternion ToThe(double p); Quaternion ToThe(double p) const;
Quaternion Inverse(); Quaternion Inverse() const;
Quaternion Times(Quaternion b); Quaternion Times(Quaternion b) const;
Quaternion Mirror(); Quaternion Mirror() const;
}; };
class Vector { class Vector {
@ -68,43 +68,43 @@ public:
Vector pb, Vector db, Vector pb, Vector db,
double *ta, double *tb); double *ta, double *tb);
double Element(int i); double Element(int i) const;
bool Equals(Vector v, double tol=LENGTH_EPS); bool Equals(Vector v, double tol=LENGTH_EPS) const;
bool EqualsExactly(Vector v); bool EqualsExactly(Vector v) const;
Vector Plus(Vector b); Vector Plus(Vector b) const;
Vector Minus(Vector b); Vector Minus(Vector b) const;
Vector Negated(); Vector Negated() const;
Vector Cross(Vector b); Vector Cross(Vector b) const;
double DirectionCosineWith(Vector b); double DirectionCosineWith(Vector b) const;
double Dot(Vector b); double Dot(Vector b) const;
Vector Normal(int which); Vector Normal(int which) const;
Vector RotatedAbout(Vector orig, Vector axis, double theta); Vector RotatedAbout(Vector orig, Vector axis, double theta) const;
Vector RotatedAbout(Vector axis, double theta); Vector RotatedAbout(Vector axis, double theta) const;
Vector DotInToCsys(Vector u, Vector v, Vector n); Vector DotInToCsys(Vector u, Vector v, Vector n) const;
Vector ScaleOutOfCsys(Vector u, Vector v, Vector n); Vector ScaleOutOfCsys(Vector u, Vector v, Vector n) const;
double DistanceToLine(Vector p0, Vector dp); double DistanceToLine(Vector p0, Vector dp) const;
bool OnLineSegment(Vector a, Vector b, double tol=LENGTH_EPS); bool OnLineSegment(Vector a, Vector b, double tol=LENGTH_EPS) const;
Vector ClosestPointOnLine(Vector p0, Vector dp); Vector ClosestPointOnLine(Vector p0, Vector deltal) const;
double Magnitude(); double Magnitude() const;
double MagSquared(); double MagSquared() const;
Vector WithMagnitude(double s); Vector WithMagnitude(double s) const;
Vector ScaledBy(double s); Vector ScaledBy(double s) const;
Vector ProjectInto(hEntity wrkpl); Vector ProjectInto(hEntity wrkpl) const;
Vector ProjectVectorInto(hEntity wrkpl); Vector ProjectVectorInto(hEntity wrkpl) const;
double DivPivoting(Vector delta); double DivPivoting(Vector delta) const;
Vector ClosestOrtho(); Vector ClosestOrtho() const;
void MakeMaxMin(Vector *maxv, Vector *minv); void MakeMaxMin(Vector *maxv, Vector *minv) const;
Vector ClampWithin(double minv, double maxv); Vector ClampWithin(double minv, double maxv) const;
static bool BoundingBoxesDisjoint(Vector amax, Vector amin, static bool BoundingBoxesDisjoint(Vector amax, Vector amin,
Vector bmax, Vector bmin); Vector bmax, Vector bmin);
static bool BoundingBoxIntersectsLine(Vector amax, Vector amin, static bool BoundingBoxIntersectsLine(Vector amax, Vector amin,
Vector p0, Vector p1, bool segment); Vector p0, Vector p1, bool segment);
bool OutsideAndNotOn(Vector maxv, Vector minv); bool OutsideAndNotOn(Vector maxv, Vector minv) const;
Vector InPerspective(Vector u, Vector v, Vector n, Vector InPerspective(Vector u, Vector v, Vector n,
Vector origin, double cameraTan); Vector origin, double cameraTan) const;
Point2d Project2d(Vector u, Vector v); Point2d Project2d(Vector u, Vector v) const;
Point2d ProjectXy(); Point2d ProjectXy() const;
Vector4 Project4d(); Vector4 Project4d() const;
}; };
class Vector4 { class Vector4 {
@ -115,10 +115,10 @@ public:
static Vector4 From(double w, Vector v3); static Vector4 From(double w, Vector v3);
static Vector4 Blend(Vector4 a, Vector4 b, double t); static Vector4 Blend(Vector4 a, Vector4 b, double t);
Vector4 Plus(Vector4 b); Vector4 Plus(Vector4 b) const;
Vector4 Minus(Vector4 b); Vector4 Minus(Vector4 b) const;
Vector4 ScaledBy(double s); Vector4 ScaledBy(double s) const;
Vector PerspectiveProject(); Vector PerspectiveProject() const;
}; };
class Point2d { class Point2d {
@ -165,12 +165,12 @@ public:
} }
} }
void Add(T *t) { void Add(const T *t) {
AllocForOneMore(); AllocForOneMore();
new(&elem[n++]) T(*t); new(&elem[n++]) T(*t);
} }
void AddToBeginning(T *t) { void AddToBeginning(const T *t) {
AllocForOneMore(); AllocForOneMore();
new(&elem[n]) T(); new(&elem[n]) T();
std::move_backward(elem, elem + 1, elem + n + 1); std::move_backward(elem, elem + 1, elem + n + 1);
@ -181,11 +181,19 @@ public:
T *First() { T *First() {
return (n == 0) ? NULL : &(elem[0]); return (n == 0) ? NULL : &(elem[0]);
} }
const T *First() const {
return (n == 0) ? NULL : &(elem[0]);
}
T *NextAfter(T *prev) { T *NextAfter(T *prev) {
if(!prev) return NULL; if(!prev) return NULL;
if(prev - elem == (n - 1)) return NULL; if(prev - elem == (n - 1)) return NULL;
return prev + 1; return prev + 1;
} }
const T *NextAfter(const T *prev) const {
if(!prev) return NULL;
if(prev - elem == (n - 1)) return NULL;
return prev + 1;
}
void ClearTags() { void ClearTags() {
int i; int i;
@ -515,12 +523,12 @@ public:
static BBox From(const Vector &p0, const Vector &p1); static BBox From(const Vector &p0, const Vector &p1);
Vector GetOrigin(); Vector GetOrigin() const;
Vector GetExtents(); Vector GetExtents() const;
void Include(const Vector &v, double r = 0.0); void Include(const Vector &v, double r = 0.0);
bool Overlaps(BBox &b1); bool Overlaps(const BBox &b1) const;
bool Contains(const Point2d &p); bool Contains(const Point2d &p) const;
}; };
#endif #endif

98
src/entity.cpp
View File

@ -10,7 +10,7 @@
const hEntity EntityBase::FREE_IN_3D = { 0 }; const hEntity EntityBase::FREE_IN_3D = { 0 };
const hEntity EntityBase::NO_ENTITY = { 0 }; const hEntity EntityBase::NO_ENTITY = { 0 };
bool EntityBase::HasVector() { bool EntityBase::HasVector() const {
switch(type) { switch(type) {
case LINE_SEGMENT: case LINE_SEGMENT:
case NORMAL_IN_3D: case NORMAL_IN_3D:
@ -25,7 +25,7 @@ bool EntityBase::HasVector() {
} }
} }
ExprVector EntityBase::VectorGetExprs() { ExprVector EntityBase::VectorGetExprs() const {
switch(type) { switch(type) {
case LINE_SEGMENT: case LINE_SEGMENT:
return (SK.GetEntity(point[0])->PointGetExprs()).Minus( return (SK.GetEntity(point[0])->PointGetExprs()).Minus(
@ -42,7 +42,7 @@ ExprVector EntityBase::VectorGetExprs() {
} }
} }
Vector EntityBase::VectorGetNum() { Vector EntityBase::VectorGetNum() const {
switch(type) { switch(type) {
case LINE_SEGMENT: case LINE_SEGMENT:
return (SK.GetEntity(point[0])->PointGetNum()).Minus( return (SK.GetEntity(point[0])->PointGetNum()).Minus(
@ -59,7 +59,7 @@ Vector EntityBase::VectorGetNum() {
} }
} }
Vector EntityBase::VectorGetRefPoint() { Vector EntityBase::VectorGetRefPoint() const {
switch(type) { switch(type) {
case LINE_SEGMENT: case LINE_SEGMENT:
return ((SK.GetEntity(point[0])->PointGetNum()).Plus( return ((SK.GetEntity(point[0])->PointGetNum()).Plus(
@ -76,7 +76,7 @@ Vector EntityBase::VectorGetRefPoint() {
} }
} }
Vector EntityBase::VectorGetStartPoint() { Vector EntityBase::VectorGetStartPoint() const {
switch(type) { switch(type) {
case LINE_SEGMENT: case LINE_SEGMENT:
return SK.GetEntity(point[1])->PointGetNum(); return SK.GetEntity(point[1])->PointGetNum();
@ -92,11 +92,11 @@ Vector EntityBase::VectorGetStartPoint() {
} }
} }
bool EntityBase::IsCircle() { bool EntityBase::IsCircle() const {
return (type == CIRCLE) || (type == ARC_OF_CIRCLE); return (type == CIRCLE) || (type == ARC_OF_CIRCLE);
} }
Expr *EntityBase::CircleGetRadiusExpr() { Expr *EntityBase::CircleGetRadiusExpr() const {
if(type == CIRCLE) { if(type == CIRCLE) {
return SK.GetEntity(distance)->DistanceGetExpr(); return SK.GetEntity(distance)->DistanceGetExpr();
} else if(type == ARC_OF_CIRCLE) { } else if(type == ARC_OF_CIRCLE) {
@ -104,7 +104,7 @@ Expr *EntityBase::CircleGetRadiusExpr() {
} else ssassert(false, "Unexpected entity type"); } else ssassert(false, "Unexpected entity type");
} }
double EntityBase::CircleGetRadiusNum() { double EntityBase::CircleGetRadiusNum() const {
if(type == CIRCLE) { if(type == CIRCLE) {
return SK.GetEntity(distance)->DistanceGetNum(); return SK.GetEntity(distance)->DistanceGetNum();
} else if(type == ARC_OF_CIRCLE) { } else if(type == ARC_OF_CIRCLE) {
@ -114,7 +114,7 @@ double EntityBase::CircleGetRadiusNum() {
} else ssassert(false, "Unexpected entity type"); } else ssassert(false, "Unexpected entity type");
} }
void EntityBase::ArcGetAngles(double *thetaa, double *thetab, double *dtheta) { void EntityBase::ArcGetAngles(double *thetaa, double *thetab, double *dtheta) const {
ssassert(type == ARC_OF_CIRCLE, "Unexpected entity type"); ssassert(type == ARC_OF_CIRCLE, "Unexpected entity type");
Quaternion q = Normal()->NormalGetNum(); Quaternion q = Normal()->NormalGetNum();
@ -137,46 +137,46 @@ void EntityBase::ArcGetAngles(double *thetaa, double *thetab, double *dtheta) {
while(*dtheta > (2*PI)) *dtheta -= 2*PI; while(*dtheta > (2*PI)) *dtheta -= 2*PI;
} }
Vector EntityBase::CubicGetStartNum() { Vector EntityBase::CubicGetStartNum() const {
return SK.GetEntity(point[0])->PointGetNum(); return SK.GetEntity(point[0])->PointGetNum();
} }
Vector EntityBase::CubicGetFinishNum() { Vector EntityBase::CubicGetFinishNum() const {
return SK.GetEntity(point[3+extraPoints])->PointGetNum(); return SK.GetEntity(point[3+extraPoints])->PointGetNum();
} }
ExprVector EntityBase::CubicGetStartTangentExprs() { ExprVector EntityBase::CubicGetStartTangentExprs() const {
ExprVector pon = SK.GetEntity(point[0])->PointGetExprs(), ExprVector pon = SK.GetEntity(point[0])->PointGetExprs(),
poff = SK.GetEntity(point[1])->PointGetExprs(); poff = SK.GetEntity(point[1])->PointGetExprs();
return (pon.Minus(poff)); return (pon.Minus(poff));
} }
ExprVector EntityBase::CubicGetFinishTangentExprs() { ExprVector EntityBase::CubicGetFinishTangentExprs() const {
ExprVector pon = SK.GetEntity(point[3+extraPoints])->PointGetExprs(), ExprVector pon = SK.GetEntity(point[3+extraPoints])->PointGetExprs(),
poff = SK.GetEntity(point[2+extraPoints])->PointGetExprs(); poff = SK.GetEntity(point[2+extraPoints])->PointGetExprs();
return (pon.Minus(poff)); return (pon.Minus(poff));
} }
Vector EntityBase::CubicGetStartTangentNum() { Vector EntityBase::CubicGetStartTangentNum() const {
Vector pon = SK.GetEntity(point[0])->PointGetNum(), Vector pon = SK.GetEntity(point[0])->PointGetNum(),
poff = SK.GetEntity(point[1])->PointGetNum(); poff = SK.GetEntity(point[1])->PointGetNum();
return (pon.Minus(poff)); return (pon.Minus(poff));
} }
Vector EntityBase::CubicGetFinishTangentNum() { Vector EntityBase::CubicGetFinishTangentNum() const {
Vector pon = SK.GetEntity(point[3+extraPoints])->PointGetNum(), Vector pon = SK.GetEntity(point[3+extraPoints])->PointGetNum(),
poff = SK.GetEntity(point[2+extraPoints])->PointGetNum(); poff = SK.GetEntity(point[2+extraPoints])->PointGetNum();
return (pon.Minus(poff)); return (pon.Minus(poff));
} }
bool EntityBase::IsWorkplane() { bool EntityBase::IsWorkplane() const {
return (type == WORKPLANE); return (type == WORKPLANE);
} }
ExprVector EntityBase::WorkplaneGetOffsetExprs() { ExprVector EntityBase::WorkplaneGetOffsetExprs() const {
return SK.GetEntity(point[0])->PointGetExprs(); return SK.GetEntity(point[0])->PointGetExprs();
} }
Vector EntityBase::WorkplaneGetOffset() { Vector EntityBase::WorkplaneGetOffset() const {
return SK.GetEntity(point[0])->PointGetNum(); return SK.GetEntity(point[0])->PointGetNum();
} }
void EntityBase::WorkplaneGetPlaneExprs(ExprVector *n, Expr **dn) { void EntityBase::WorkplaneGetPlaneExprs(ExprVector *n, Expr **dn) const {
if(type == WORKPLANE) { if(type == WORKPLANE) {
*n = Normal()->NormalExprsN(); *n = Normal()->NormalExprsN();
@ -188,18 +188,18 @@ void EntityBase::WorkplaneGetPlaneExprs(ExprVector *n, Expr **dn) {
} else ssassert(false, "Unexpected entity type"); } else ssassert(false, "Unexpected entity type");
} }
bool EntityBase::IsDistance() { bool EntityBase::IsDistance() const {
return (type == DISTANCE) || return (type == DISTANCE) ||
(type == DISTANCE_N_COPY); (type == DISTANCE_N_COPY);
} }
double EntityBase::DistanceGetNum() { double EntityBase::DistanceGetNum() const {
if(type == DISTANCE) { if(type == DISTANCE) {
return SK.GetParam(param[0])->val; return SK.GetParam(param[0])->val;
} else if(type == DISTANCE_N_COPY) { } else if(type == DISTANCE_N_COPY) {
return numDistance; return numDistance;
} else ssassert(false, "Unexpected entity type"); } else ssassert(false, "Unexpected entity type");
} }
Expr *EntityBase::DistanceGetExpr() { Expr *EntityBase::DistanceGetExpr() const {
if(type == DISTANCE) { if(type == DISTANCE) {
return Expr::From(param[0]); return Expr::From(param[0]);
} else if(type == DISTANCE_N_COPY) { } else if(type == DISTANCE_N_COPY) {
@ -214,11 +214,11 @@ void EntityBase::DistanceForceTo(double v) {
} else ssassert(false, "Unexpected entity type"); } else ssassert(false, "Unexpected entity type");
} }
EntityBase *EntityBase::Normal() { EntityBase *EntityBase::Normal() const {
return SK.GetEntity(normal); return SK.GetEntity(normal);
} }
bool EntityBase::IsPoint() { bool EntityBase::IsPoint() const {
switch(type) { switch(type) {
case POINT_IN_3D: case POINT_IN_3D:
case POINT_IN_2D: case POINT_IN_2D:
@ -233,7 +233,7 @@ bool EntityBase::IsPoint() {
} }
} }
bool EntityBase::IsNormal() { bool EntityBase::IsNormal() const {
switch(type) { switch(type) {
case NORMAL_IN_3D: case NORMAL_IN_3D:
case NORMAL_IN_2D: case NORMAL_IN_2D:
@ -246,7 +246,7 @@ bool EntityBase::IsNormal() {
} }
} }
Quaternion EntityBase::NormalGetNum() { Quaternion EntityBase::NormalGetNum() const {
Quaternion q; Quaternion q;
switch(type) { switch(type) {
case NORMAL_IN_3D: case NORMAL_IN_3D:
@ -310,27 +310,27 @@ void EntityBase::NormalForceTo(Quaternion q) {
} }
} }
Vector EntityBase::NormalU() { Vector EntityBase::NormalU() const {
return NormalGetNum().RotationU(); return NormalGetNum().RotationU();
} }
Vector EntityBase::NormalV() { Vector EntityBase::NormalV() const {
return NormalGetNum().RotationV(); return NormalGetNum().RotationV();
} }
Vector EntityBase::NormalN() { Vector EntityBase::NormalN() const {
return NormalGetNum().RotationN(); return NormalGetNum().RotationN();
} }
ExprVector EntityBase::NormalExprsU() { ExprVector EntityBase::NormalExprsU() const {
return NormalGetExprs().RotationU(); return NormalGetExprs().RotationU();
} }
ExprVector EntityBase::NormalExprsV() { ExprVector EntityBase::NormalExprsV() const {
return NormalGetExprs().RotationV(); return NormalGetExprs().RotationV();
} }
ExprVector EntityBase::NormalExprsN() { ExprVector EntityBase::NormalExprsN() const {
return NormalGetExprs().RotationN(); return NormalGetExprs().RotationN();
} }
ExprQuaternion EntityBase::NormalGetExprs() { ExprQuaternion EntityBase::NormalGetExprs() const {
ExprQuaternion q; ExprQuaternion q;
switch(type) { switch(type) {
case NORMAL_IN_3D: case NORMAL_IN_3D:
@ -430,7 +430,7 @@ void EntityBase::PointForceTo(Vector p) {
} }
} }
Vector EntityBase::PointGetNum() { Vector EntityBase::PointGetNum() const {
Vector p; Vector p;
switch(type) { switch(type) {
case POINT_IN_3D: case POINT_IN_3D:
@ -479,7 +479,7 @@ Vector EntityBase::PointGetNum() {
return p; return p;
} }
ExprVector EntityBase::PointGetExprs() { ExprVector EntityBase::PointGetExprs() const {
ExprVector r; ExprVector r;
switch(type) { switch(type) {
case POINT_IN_3D: case POINT_IN_3D:
@ -528,7 +528,7 @@ ExprVector EntityBase::PointGetExprs() {
return r; return r;
} }
void EntityBase::PointGetExprsInWorkplane(hEntity wrkpl, Expr **u, Expr **v) { void EntityBase::PointGetExprsInWorkplane(hEntity wrkpl, Expr **u, Expr **v) const {
if(type == POINT_IN_2D && workplane.v == wrkpl.v) { if(type == POINT_IN_2D && workplane.v == wrkpl.v) {
// They want our coordinates in the form that we've written them, // They want our coordinates in the form that we've written them,
// very nice. // very nice.
@ -559,7 +559,7 @@ void EntityBase::PointForceQuaternionTo(Quaternion q) {
SK.GetParam(param[6])->val = q.vz; SK.GetParam(param[6])->val = q.vz;
} }
Quaternion EntityBase::GetAxisAngleQuaternion(int param0) { Quaternion EntityBase::GetAxisAngleQuaternion(int param0) const {
Quaternion q; Quaternion q;
double theta = timesApplied*SK.GetParam(param[param0+0])->val; double theta = timesApplied*SK.GetParam(param[param0+0])->val;
double s = sin(theta), c = cos(theta); double s = sin(theta), c = cos(theta);
@ -570,7 +570,7 @@ Quaternion EntityBase::GetAxisAngleQuaternion(int param0) {
return q; return q;
} }
ExprQuaternion EntityBase::GetAxisAngleQuaternionExprs(int param0) { ExprQuaternion EntityBase::GetAxisAngleQuaternionExprs(int param0) const {
ExprQuaternion q; ExprQuaternion q;
Expr *theta = Expr::From(timesApplied)->Times( Expr *theta = Expr::From(timesApplied)->Times(
@ -583,7 +583,7 @@ ExprQuaternion EntityBase::GetAxisAngleQuaternionExprs(int param0) {
return q; return q;
} }
Quaternion EntityBase::PointGetQuaternion() { Quaternion EntityBase::PointGetQuaternion() const {
Quaternion q; Quaternion q;
if(type == POINT_N_ROT_AA) { if(type == POINT_N_ROT_AA) {
@ -595,7 +595,7 @@ Quaternion EntityBase::PointGetQuaternion() {
return q; return q;
} }
bool EntityBase::IsFace() { bool EntityBase::IsFace() const {
switch(type) { switch(type) {
case FACE_NORMAL_PT: case FACE_NORMAL_PT:
case FACE_XPROD: case FACE_XPROD:
@ -608,7 +608,7 @@ bool EntityBase::IsFace() {
} }
} }
ExprVector EntityBase::FaceGetNormalExprs() { ExprVector EntityBase::FaceGetNormalExprs() const {
ExprVector r; ExprVector r;
if(type == FACE_NORMAL_PT) { if(type == FACE_NORMAL_PT) {
Vector v = Vector::From(numNormal.vx, numNormal.vy, numNormal.vz); Vector v = Vector::From(numNormal.vx, numNormal.vy, numNormal.vz);
@ -637,7 +637,7 @@ ExprVector EntityBase::FaceGetNormalExprs() {
return r; return r;
} }
Vector EntityBase::FaceGetNormalNum() { Vector EntityBase::FaceGetNormalNum() const {
Vector r; Vector r;
if(type == FACE_NORMAL_PT) { if(type == FACE_NORMAL_PT) {
r = Vector::From(numNormal.vx, numNormal.vy, numNormal.vz); r = Vector::From(numNormal.vx, numNormal.vy, numNormal.vz);
@ -660,7 +660,7 @@ Vector EntityBase::FaceGetNormalNum() {
return r.WithMagnitude(1); return r.WithMagnitude(1);
} }
ExprVector EntityBase::FaceGetPointExprs() { ExprVector EntityBase::FaceGetPointExprs() const {
ExprVector r; ExprVector r;
if(type == FACE_NORMAL_PT) { if(type == FACE_NORMAL_PT) {
r = SK.GetEntity(point[0])->PointGetExprs(); r = SK.GetEntity(point[0])->PointGetExprs();
@ -689,7 +689,7 @@ ExprVector EntityBase::FaceGetPointExprs() {
return r; return r;
} }
Vector EntityBase::FaceGetPointNum() { Vector EntityBase::FaceGetPointNum() const {
Vector r; Vector r;
if(type == FACE_NORMAL_PT) { if(type == FACE_NORMAL_PT) {
r = SK.GetEntity(point[0])->PointGetNum(); r = SK.GetEntity(point[0])->PointGetNum();
@ -714,12 +714,12 @@ Vector EntityBase::FaceGetPointNum() {
return r; return r;
} }
bool EntityBase::HasEndpoints() { bool EntityBase::HasEndpoints() const {
return (type == LINE_SEGMENT) || return (type == LINE_SEGMENT) ||
(type == CUBIC) || (type == CUBIC) ||
(type == ARC_OF_CIRCLE); (type == ARC_OF_CIRCLE);
} }
Vector EntityBase::EndpointStart() { Vector EntityBase::EndpointStart() const {
if(type == LINE_SEGMENT) { if(type == LINE_SEGMENT) {
return SK.GetEntity(point[0])->PointGetNum(); return SK.GetEntity(point[0])->PointGetNum();
} else if(type == CUBIC) { } else if(type == CUBIC) {
@ -728,7 +728,7 @@ Vector EntityBase::EndpointStart() {
return SK.GetEntity(point[1])->PointGetNum(); return SK.GetEntity(point[1])->PointGetNum();
} else ssassert(false, "Unexpected entity type"); } else ssassert(false, "Unexpected entity type");
} }
Vector EntityBase::EndpointFinish() { Vector EntityBase::EndpointFinish() const {
if(type == LINE_SEGMENT) { if(type == LINE_SEGMENT) {
return SK.GetEntity(point[1])->PointGetNum(); return SK.GetEntity(point[1])->PointGetNum();
} else if(type == CUBIC) { } else if(type == CUBIC) {
@ -738,14 +738,14 @@ Vector EntityBase::EndpointFinish() {
} else ssassert(false, "Unexpected entity type"); } else ssassert(false, "Unexpected entity type");
} }
void EntityBase::AddEq(IdList<Equation,hEquation> *l, Expr *expr, int index) { void EntityBase::AddEq(IdList<Equation,hEquation> *l, Expr *expr, int index) const {
Equation eq; Equation eq;
eq.e = expr; eq.e = expr;
eq.h = h.equation(index); eq.h = h.equation(index);
l->Add(&eq); l->Add(&eq);
} }
void EntityBase::GenerateEquations(IdList<Equation,hEquation> *l) { void EntityBase::GenerateEquations(IdList<Equation,hEquation> *l) const {
switch(type) { switch(type) {
case NORMAL_IN_3D: { case NORMAL_IN_3D: {
ExprQuaternion q = NormalGetExprs(); ExprQuaternion q = NormalGetExprs();

48
src/expr.cpp
View File

@ -37,7 +37,7 @@ ExprVector ExprVector::From(double x, double y, double z) {
return ve; return ve;
} }
ExprVector ExprVector::Minus(ExprVector b) { ExprVector ExprVector::Minus(ExprVector b) const {
ExprVector r; ExprVector r;
r.x = x->Minus(b.x); r.x = x->Minus(b.x);
r.y = y->Minus(b.y); r.y = y->Minus(b.y);
@ -45,7 +45,7 @@ ExprVector ExprVector::Minus(ExprVector b) {
return r; return r;
} }
ExprVector ExprVector::Plus(ExprVector b) { ExprVector ExprVector::Plus(ExprVector b) const {
ExprVector r; ExprVector r;
r.x = x->Plus(b.x); r.x = x->Plus(b.x);
r.y = y->Plus(b.y); r.y = y->Plus(b.y);
@ -53,7 +53,7 @@ ExprVector ExprVector::Plus(ExprVector b) {
return r; return r;
} }
Expr *ExprVector::Dot(ExprVector b) { Expr *ExprVector::Dot(ExprVector b) const {
Expr *r; Expr *r;
r = x->Times(b.x); r = x->Times(b.x);
r = r->Plus(y->Times(b.y)); r = r->Plus(y->Times(b.y));
@ -61,7 +61,7 @@ Expr *ExprVector::Dot(ExprVector b) {
return r; return r;
} }
ExprVector ExprVector::Cross(ExprVector b) { ExprVector ExprVector::Cross(ExprVector b) const {
ExprVector r; ExprVector r;
r.x = (y->Times(b.z))->Minus(z->Times(b.y)); r.x = (y->Times(b.z))->Minus(z->Times(b.y));
r.y = (z->Times(b.x))->Minus(x->Times(b.z)); r.y = (z->Times(b.x))->Minus(x->Times(b.z));
@ -69,7 +69,7 @@ ExprVector ExprVector::Cross(ExprVector b) {
return r; return r;
} }
ExprVector ExprVector::ScaledBy(Expr *s) { ExprVector ExprVector::ScaledBy(Expr *s) const {
ExprVector r; ExprVector r;
r.x = x->Times(s); r.x = x->Times(s);
r.y = y->Times(s); r.y = y->Times(s);
@ -77,12 +77,12 @@ ExprVector ExprVector::ScaledBy(Expr *s) {
return r; return r;
} }
ExprVector ExprVector::WithMagnitude(Expr *s) { ExprVector ExprVector::WithMagnitude(Expr *s) const {
Expr *m = Magnitude(); Expr *m = Magnitude();
return ScaledBy(s->Div(m)); return ScaledBy(s->Div(m));
} }
Expr *ExprVector::Magnitude() { Expr *ExprVector::Magnitude() const {
Expr *r; Expr *r;
r = x->Square(); r = x->Square();
r = r->Plus(y->Square()); r = r->Plus(y->Square());
@ -90,7 +90,7 @@ Expr *ExprVector::Magnitude() {
return r->Sqrt(); return r->Sqrt();
} }
Vector ExprVector::Eval() { Vector ExprVector::Eval() const {
Vector r; Vector r;
r.x = x->Eval(); r.x = x->Eval();
r.y = y->Eval(); r.y = y->Eval();
@ -126,7 +126,7 @@ ExprQuaternion ExprQuaternion::From(Quaternion qn) {
return qe; return qe;
} }
ExprVector ExprQuaternion::RotationU() { ExprVector ExprQuaternion::RotationU() const {
ExprVector u; ExprVector u;
Expr *two = Expr::From(2); Expr *two = Expr::From(2);
@ -144,7 +144,7 @@ ExprVector ExprQuaternion::RotationU() {
return u; return u;
} }
ExprVector ExprQuaternion::RotationV() { ExprVector ExprQuaternion::RotationV() const {
ExprVector v; ExprVector v;
Expr *two = Expr::From(2); Expr *two = Expr::From(2);
@ -162,7 +162,7 @@ ExprVector ExprQuaternion::RotationV() {
return v; return v;
} }
ExprVector ExprQuaternion::RotationN() { ExprVector ExprQuaternion::RotationN() const {
ExprVector n; ExprVector n;
Expr *two = Expr::From(2); Expr *two = Expr::From(2);
@ -180,14 +180,14 @@ ExprVector ExprQuaternion::RotationN() {
return n; return n;
} }
ExprVector ExprQuaternion::Rotate(ExprVector p) { ExprVector ExprQuaternion::Rotate(ExprVector p) const {
// Express the point in the new basis // Express the point in the new basis
return (RotationU().ScaledBy(p.x)).Plus( return (RotationU().ScaledBy(p.x)).Plus(
RotationV().ScaledBy(p.y)).Plus( RotationV().ScaledBy(p.y)).Plus(
RotationN().ScaledBy(p.z)); RotationN().ScaledBy(p.z));
} }
ExprQuaternion ExprQuaternion::Times(ExprQuaternion b) { ExprQuaternion ExprQuaternion::Times(ExprQuaternion b) const {
Expr *sa = w, *sb = b.w; Expr *sa = w, *sb = b.w;
ExprVector va = { vx, vy, vz }; ExprVector va = { vx, vy, vz };
ExprVector vb = { b.vx, b.vy, b.vz }; ExprVector vb = { b.vx, b.vy, b.vz };
@ -203,7 +203,7 @@ ExprQuaternion ExprQuaternion::Times(ExprQuaternion b) {
return r; return r;
} }
Expr *ExprQuaternion::Magnitude() { Expr *ExprQuaternion::Magnitude() const {
return ((w ->Square())->Plus( return ((w ->Square())->Plus(
(vx->Square())->Plus( (vx->Square())->Plus(
(vy->Square())->Plus( (vy->Square())->Plus(
@ -262,7 +262,7 @@ Expr *Expr::AnyOp(int newOp, Expr *b) {
return r; return r;
} }
int Expr::Children() { int Expr::Children() const {
switch(op) { switch(op) {
case PARAM: case PARAM:
case PARAM_PTR: case PARAM_PTR:
@ -288,7 +288,7 @@ int Expr::Children() {
} }
} }
int Expr::Nodes() { int Expr::Nodes() const {
switch(Children()) { switch(Children()) {
case 0: return 1; case 0: return 1;
case 1: return 1 + a->Nodes(); case 1: return 1 + a->Nodes();
@ -297,7 +297,7 @@ int Expr::Nodes() {
} }
} }
Expr *Expr::DeepCopy() { Expr *Expr::DeepCopy() const {
Expr *n = AllocExpr(); Expr *n = AllocExpr();
*n = *this; *n = *this;
int c = n->Children(); int c = n->Children();
@ -307,7 +307,7 @@ Expr *Expr::DeepCopy() {
} }
Expr *Expr::DeepCopyWithParamsAsPointers(IdList<Param,hParam> *firstTry, Expr *Expr::DeepCopyWithParamsAsPointers(IdList<Param,hParam> *firstTry,
IdList<Param,hParam> *thenTry) IdList<Param,hParam> *thenTry) const
{ {
Expr *n = AllocExpr(); Expr *n = AllocExpr();
if(op == PARAM) { if(op == PARAM) {
@ -333,7 +333,7 @@ Expr *Expr::DeepCopyWithParamsAsPointers(IdList<Param,hParam> *firstTry,
return n; return n;
} }
double Expr::Eval() { double Expr::Eval() const {
switch(op) { switch(op) {
case PARAM: return SK.GetParam(parh)->val; case PARAM: return SK.GetParam(parh)->val;
case PARAM_PTR: return parp->val; case PARAM_PTR: return parp->val;
@ -357,7 +357,7 @@ double Expr::Eval() {
} }
} }
Expr *Expr::PartialWrt(hParam p) { Expr *Expr::PartialWrt(hParam p) const {
Expr *da, *db; Expr *da, *db;
switch(op) { switch(op) {
@ -400,7 +400,7 @@ Expr *Expr::PartialWrt(hParam p) {
} }
} }
uint64_t Expr::ParamsUsed() { uint64_t Expr::ParamsUsed() const {
uint64_t r = 0; uint64_t r = 0;
if(op == PARAM) r |= ((uint64_t)1 << (parh.v % 61)); if(op == PARAM) r |= ((uint64_t)1 << (parh.v % 61));
if(op == PARAM_PTR) r |= ((uint64_t)1 << (parp->h.v % 61)); if(op == PARAM_PTR) r |= ((uint64_t)1 << (parp->h.v % 61));
@ -411,7 +411,7 @@ uint64_t Expr::ParamsUsed() {
return r; return r;
} }
bool Expr::DependsOn(hParam p) { bool Expr::DependsOn(hParam p) const {
if(op == PARAM) return (parh.v == p.v); if(op == PARAM) return (parh.v == p.v);
if(op == PARAM_PTR) return (parp->h.v == p.v); if(op == PARAM_PTR) return (parp->h.v == p.v);
@ -510,7 +510,7 @@ void Expr::Substitute(hParam oldh, hParam newh) {
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
const hParam Expr::NO_PARAMS = { 0 }; const hParam Expr::NO_PARAMS = { 0 };
const hParam Expr::MULTIPLE_PARAMS = { 1 }; const hParam Expr::MULTIPLE_PARAMS = { 1 };
hParam Expr::ReferencedParams(ParamList *pl) { hParam Expr::ReferencedParams(ParamList *pl) const {
if(op == PARAM) { if(op == PARAM) {
if(pl->FindByIdNoOops(parh)) { if(pl->FindByIdNoOops(parh)) {
return parh; return parh;
@ -546,7 +546,7 @@ hParam Expr::ReferencedParams(ParamList *pl) {
// Routines to pretty-print an expression. Mostly for debugging. // Routines to pretty-print an expression. Mostly for debugging.
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
std::string Expr::Print() { std::string Expr::Print() const {
char c; char c;
switch(op) { switch(op) {

48
src/expr.h
View File

@ -80,33 +80,33 @@ public:
inline Expr *ASin () { return AnyOp(ASIN, NULL); } inline Expr *ASin () { return AnyOp(ASIN, NULL); }
inline Expr *ACos () { return AnyOp(ACOS, NULL); } inline Expr *ACos () { return AnyOp(ACOS, NULL); }
Expr *PartialWrt(hParam p); Expr *PartialWrt(hParam p) const;
double Eval(); double Eval() const;
uint64_t ParamsUsed(); uint64_t ParamsUsed() const;
bool DependsOn(hParam p); bool DependsOn(hParam p) const;
static bool Tol(double a, double b); static bool Tol(double a, double b);
Expr *FoldConstants(); Expr *FoldConstants();
void Substitute(hParam oldh, hParam newh); void Substitute(hParam oldh, hParam newh);
static const hParam NO_PARAMS, MULTIPLE_PARAMS; static const hParam NO_PARAMS, MULTIPLE_PARAMS;
hParam ReferencedParams(ParamList *pl); hParam ReferencedParams(ParamList *pl) const;
void ParamsToPointers(); void ParamsToPointers();
std::string Print(); std::string Print() const;
// number of child nodes: 0 (e.g. constant), 1 (sqrt), or 2 (+) // number of child nodes: 0 (e.g. constant), 1 (sqrt), or 2 (+)
int Children(); int Children() const;
// total number of nodes in the tree // total number of nodes in the tree
int Nodes(); int Nodes() const;
// Make a simple copy // Make a simple copy
Expr *DeepCopy(); Expr *DeepCopy() const;
// Make a copy, with the parameters (usually referenced by hParam) // Make a copy, with the parameters (usually referenced by hParam)
// resolved to pointers to the actual value. This speeds things up // resolved to pointers to the actual value. This speeds things up
// considerably. // considerably.
Expr *DeepCopyWithParamsAsPointers(IdList<Param,hParam> *firstTry, Expr *DeepCopyWithParamsAsPointers(IdList<Param,hParam> *firstTry,
IdList<Param,hParam> *thenTry); IdList<Param,hParam> *thenTry) const;
static Expr *From(const char *in, bool popUpError); static Expr *From(const char *in, bool popUpError);
static void Lex(const char *in); static void Lex(const char *in);
@ -136,15 +136,15 @@ public:
static ExprVector From(hParam x, hParam y, hParam z); static ExprVector From(hParam x, hParam y, hParam z);
static ExprVector From(double x, double y, double z); static ExprVector From(double x, double y, double z);
ExprVector Plus(ExprVector b); ExprVector Plus(ExprVector b) const;
ExprVector Minus(ExprVector b); ExprVector Minus(ExprVector b) const;
Expr *Dot(ExprVector b); Expr *Dot(ExprVector b) const;
ExprVector Cross(ExprVector b); ExprVector Cross(ExprVector b) const;
ExprVector ScaledBy(Expr *s); ExprVector ScaledBy(Expr *s) const;
ExprVector WithMagnitude(Expr *s); ExprVector WithMagnitude(Expr *s) const;
Expr *Magnitude(); Expr *Magnitude() const;
Vector Eval(); Vector Eval() const;
}; };
class ExprQuaternion { class ExprQuaternion {
@ -155,14 +155,14 @@ public:
static ExprQuaternion From(Quaternion qn); static ExprQuaternion From(Quaternion qn);
static ExprQuaternion From(hParam w, hParam vx, hParam vy, hParam vz); static ExprQuaternion From(hParam w, hParam vx, hParam vy, hParam vz);
ExprVector RotationU(); ExprVector RotationU() const;
ExprVector RotationV(); ExprVector RotationV() const;
ExprVector RotationN(); ExprVector RotationN() const;
ExprVector Rotate(ExprVector p); ExprVector Rotate(ExprVector p) const;
ExprQuaternion Times(ExprQuaternion b); ExprQuaternion Times(ExprQuaternion b) const;
Expr *Magnitude(); Expr *Magnitude() const;
}; };
#endif #endif

30
src/mesh.cpp
View File

@ -33,12 +33,12 @@ void SMesh::AddTriangle(STriMeta meta, Vector a, Vector b, Vector c) {
t.c = c; t.c = c;
AddTriangle(&t); AddTriangle(&t);
} }
void SMesh::AddTriangle(STriangle *st) { void SMesh::AddTriangle(const STriangle *st) {
if(st->meta.color.alpha != 255) isTransparent = true; if(st->meta.color.alpha != 255) isTransparent = true;
l.Add(st); l.Add(st);
} }
void SMesh::DoBounding(Vector v, Vector *vmax, Vector *vmin) { void SMesh::DoBounding(Vector v, Vector *vmax, Vector *vmin) const {
vmax->x = max(vmax->x, v.x); vmax->x = max(vmax->x, v.x);
vmax->y = max(vmax->y, v.y); vmax->y = max(vmax->y, v.y);
vmax->z = max(vmax->z, v.z); vmax->z = max(vmax->z, v.z);
@ -47,7 +47,7 @@ void SMesh::DoBounding(Vector v, Vector *vmax, Vector *vmin) {
vmin->y = min(vmin->y, v.y); vmin->y = min(vmin->y, v.y);
vmin->z = min(vmin->z, v.z); vmin->z = min(vmin->z, v.z);
} }
void SMesh::GetBounding(Vector *vmax, Vector *vmin) { void SMesh::GetBounding(Vector *vmax, Vector *vmin) const {
int i; int i;
*vmin = Vector::From( 1e12, 1e12, 1e12); *vmin = Vector::From( 1e12, 1e12, 1e12);
*vmax = Vector::From(-1e12, -1e12, -1e12); *vmax = Vector::From(-1e12, -1e12, -1e12);
@ -302,8 +302,8 @@ void SMesh::MakeFromAssemblyOf(SMesh *a, SMesh *b) {
MakeFromCopyOf(b); MakeFromCopyOf(b);
} }
void SMesh::MakeFromTransformationOf(SMesh *a, void SMesh::MakeFromTransformationOf(SMesh *a, Vector trans,
Vector trans, Quaternion q, double scale) Quaternion q, double scale)
{ {
STriangle *tr; STriangle *tr;
for(tr = a->l.First(); tr; tr = a->l.NextAfter(tr)) { for(tr = a->l.First(); tr; tr = a->l.NextAfter(tr)) {
@ -322,11 +322,11 @@ void SMesh::MakeFromTransformationOf(SMesh *a,
} }
} }
bool SMesh::IsEmpty() { bool SMesh::IsEmpty() const {
return (l.n == 0); return (l.n == 0);
} }
uint32_t SMesh::FirstIntersectionWith(Point2d mp) { uint32_t SMesh::FirstIntersectionWith(Point2d mp) const {
Vector p0 = Vector::From(mp.x, mp.y, 0); Vector p0 = Vector::From(mp.x, mp.y, 0);
Vector gn = Vector::From(0, 0, 1); Vector gn = Vector::From(0, 0, 1);
@ -487,7 +487,7 @@ leaf:
return ret; return ret;
} }
void SKdNode::ClearTags() { void SKdNode::ClearTags() const {
if(gt && lt) { if(gt && lt) {
gt->ClearTags(); gt->ClearTags();
lt->ClearTags(); lt->ClearTags();
@ -524,7 +524,7 @@ void SKdNode::AddTriangle(STriangle *tr) {
} }
} }
void SKdNode::MakeMeshInto(SMesh *m) { void SKdNode::MakeMeshInto(SMesh *m) const {
if(gt) gt->MakeMeshInto(m); if(gt) gt->MakeMeshInto(m);
if(lt) lt->MakeMeshInto(m); if(lt) lt->MakeMeshInto(m);
@ -537,7 +537,7 @@ void SKdNode::MakeMeshInto(SMesh *m) {
} }
} }
void SKdNode::ListTrianglesInto(std::vector<STriangle *> *tl) { void SKdNode::ListTrianglesInto(std::vector<STriangle *> *tl) const {
if(gt) gt->ListTrianglesInto(tl); if(gt) gt->ListTrianglesInto(tl);
if(lt) lt->ListTrianglesInto(tl); if(lt) lt->ListTrianglesInto(tl);
@ -654,7 +654,7 @@ void SKdNode::SnapToMesh(SMesh *m) {
// them for occlusion. Keep only the visible segments. sel is both our input // them for occlusion. Keep only the visible segments. sel is both our input
// and our output. // and our output.
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
void SKdNode::SplitLinesAgainstTriangle(SEdgeList *sel, STriangle *tr, bool removeHidden) { void SKdNode::SplitLinesAgainstTriangle(SEdgeList *sel, STriangle *tr, bool removeHidden) const {
SEdgeList seln = {}; SEdgeList seln = {};
Vector tn = tr->Normal().WithMagnitude(1); Vector tn = tr->Normal().WithMagnitude(1);
@ -767,7 +767,7 @@ void SKdNode::SplitLinesAgainstTriangle(SEdgeList *sel, STriangle *tr, bool remo
// Given an edge orig, occlusion test it against our mesh. We output an edge // Given an edge orig, occlusion test it against our mesh. We output an edge
// list in sel, containing the visible portions of that edge. // list in sel, containing the visible portions of that edge.
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
void SKdNode::OcclusionTestLine(SEdge orig, SEdgeList *sel, int cnt, bool removeHidden) { void SKdNode::OcclusionTestLine(SEdge orig, SEdgeList *sel, int cnt, bool removeHidden) const {
if(gt && lt) { if(gt && lt) {
double ac = (orig.a).Element(which), double ac = (orig.a).Element(which),
bc = (orig.b).Element(which); bc = (orig.b).Element(which);
@ -808,7 +808,7 @@ void SKdNode::OcclusionTestLine(SEdge orig, SEdgeList *sel, int cnt, bool remove
// with a triangle in the mesh, otherwise not. // with a triangle in the mesh, otherwise not.
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
void SKdNode::FindEdgeOn(Vector a, Vector b, int cnt, bool coplanarIsInter, void SKdNode::FindEdgeOn(Vector a, Vector b, int cnt, bool coplanarIsInter,
EdgeOnInfo *info) EdgeOnInfo *info) const
{ {
if(gt && lt) { if(gt && lt) {
double ac = a.Element(which), double ac = a.Element(which),
@ -925,7 +925,7 @@ static bool CheckAndAddTrianglePair(std::set<std::pair<STriangle *, STriangle *>
// a triangle from a different face) // a triangle from a different face)
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
void SKdNode::MakeCertainEdgesInto(SEdgeList *sel, int how, bool coplanarIsInter, void SKdNode::MakeCertainEdgesInto(SEdgeList *sel, int how, bool coplanarIsInter,
bool *inter, bool *leaky, int auxA) bool *inter, bool *leaky, int auxA) const
{ {
if(inter) *inter = false; if(inter) *inter = false;
if(leaky) *leaky = false; if(leaky) *leaky = false;
@ -1022,7 +1022,7 @@ void SKdNode::MakeCertainEdgesInto(SEdgeList *sel, int how, bool coplanarIsInter
} }
} }
void SKdNode::MakeOutlinesInto(SOutlineList *sol) void SKdNode::MakeOutlinesInto(SOutlineList *sol) const
{ {
std::vector<STriangle *> tris; std::vector<STriangle *> tris;
ClearTags(); ClearTags();

76
src/polygon.cpp
View File

@ -5,12 +5,12 @@
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
#include "solvespace.h" #include "solvespace.h"
Vector STriangle::Normal() { Vector STriangle::Normal() const {
Vector ab = b.Minus(a), bc = c.Minus(b); Vector ab = b.Minus(a), bc = c.Minus(b);
return ab.Cross(bc); return ab.Cross(bc);
} }
double STriangle::MinAltitude() { double STriangle::MinAltitude() const {
double altA = a.DistanceToLine(b, c.Minus(b)), double altA = a.DistanceToLine(b, c.Minus(b)),
altB = b.DistanceToLine(c, a.Minus(c)), altB = b.DistanceToLine(c, a.Minus(c)),
altC = c.DistanceToLine(a, b.Minus(a)); altC = c.DistanceToLine(a, b.Minus(a));
@ -18,7 +18,7 @@ double STriangle::MinAltitude() {
return min(altA, min(altB, altC)); return min(altA, min(altB, altC));
} }
bool STriangle::ContainsPoint(Vector p) { bool STriangle::ContainsPoint(Vector p) const {
Vector n = Normal(); Vector n = Normal();
if(MinAltitude() < LENGTH_EPS) { if(MinAltitude() < LENGTH_EPS) {
// shouldn't happen; zero-area triangle // shouldn't happen; zero-area triangle
@ -27,7 +27,7 @@ bool STriangle::ContainsPoint(Vector p) {
return ContainsPointProjd(n.WithMagnitude(1), p); return ContainsPointProjd(n.WithMagnitude(1), p);
} }
bool STriangle::ContainsPointProjd(Vector n, Vector p) { bool STriangle::ContainsPointProjd(Vector n, Vector p) const {
Vector ab = b.Minus(a), bc = c.Minus(b), ca = a.Minus(c); Vector ab = b.Minus(a), bc = c.Minus(b), ca = a.Minus(c);
Vector no_ab = n.Cross(ab); Vector no_ab = n.Cross(ab);
@ -63,7 +63,7 @@ SEdge SEdge::From(Vector a, Vector b) {
return se; return se;
} }
bool SEdge::EdgeCrosses(Vector ea, Vector eb, Vector *ppi, SPointList *spl) { bool SEdge::EdgeCrosses(Vector ea, Vector eb, Vector *ppi, SPointList *spl) const {
Vector d = eb.Minus(ea); Vector d = eb.Minus(ea);
double t_eps = LENGTH_EPS/d.Magnitude(); double t_eps = LENGTH_EPS/d.Magnitude();
@ -155,7 +155,7 @@ void SEdgeList::AddEdge(Vector a, Vector b, int auxA, int auxB) {
} }
bool SEdgeList::AssembleContour(Vector first, Vector last, SContour *dest, bool SEdgeList::AssembleContour(Vector first, Vector last, SContour *dest,
SEdge *errorAt, bool keepDir) SEdge *errorAt, bool keepDir) const
{ {
int i; int i;
@ -195,7 +195,7 @@ bool SEdgeList::AssembleContour(Vector first, Vector last, SContour *dest,
return true; return true;
} }
bool SEdgeList::AssemblePolygon(SPolygon *dest, SEdge *errorAt, bool keepDir) { bool SEdgeList::AssemblePolygon(SPolygon *dest, SEdge *errorAt, bool keepDir) const {
dest->Clear(); dest->Clear();
bool allClosed = true; bool allClosed = true;
@ -234,11 +234,10 @@ bool SEdgeList::AssemblePolygon(SPolygon *dest, SEdge *errorAt, bool keepDir) {
// If pi is not NULL, then a crossing is returned in that. // If pi is not NULL, then a crossing is returned in that.
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
int SEdgeList::AnyEdgeCrossings(Vector a, Vector b, int SEdgeList::AnyEdgeCrossings(Vector a, Vector b,
Vector *ppi, SPointList *spl) Vector *ppi, SPointList *spl) const
{ {
int cnt = 0; int cnt = 0;
SEdge *se; for(const SEdge *se = l.First(); se; se = l.NextAfter(se)) {
for(se = l.First(); se; se = l.NextAfter(se)) {
if(se->EdgeCrosses(a, b, ppi, spl)) { if(se->EdgeCrosses(a, b, ppi, spl)) {
cnt++; cnt++;
} }
@ -250,16 +249,14 @@ int SEdgeList::AnyEdgeCrossings(Vector a, Vector b,
// Returns true if the intersecting edge list contains an edge that shares // Returns true if the intersecting edge list contains an edge that shares
// an endpoint with one of our edges. // an endpoint with one of our edges.
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
bool SEdgeList::ContainsEdgeFrom(SEdgeList *sel) { bool SEdgeList::ContainsEdgeFrom(const SEdgeList *sel) const {
SEdge *se; for(const SEdge *se = l.First(); se; se = l.NextAfter(se)) {
for(se = l.First(); se; se = l.NextAfter(se)) {
if(sel->ContainsEdge(se)) return true; if(sel->ContainsEdge(se)) return true;
} }
return false; return false;
} }
bool SEdgeList::ContainsEdge(SEdge *set) { bool SEdgeList::ContainsEdge(const SEdge *set) const {
SEdge *se; for(const SEdge *se = l.First(); se; se = l.NextAfter(se)) {
for(se = l.First(); se; se = l.NextAfter(se)) {
if((se->a).Equals(set->a) && (se->b).Equals(set->b)) return true; if((se->a).Equals(set->a) && (se->b).Equals(set->b)) return true;
if((se->b).Equals(set->a) && (se->a).Equals(set->b)) return true; if((se->b).Equals(set->a) && (se->a).Equals(set->b)) return true;
} }
@ -395,7 +392,7 @@ SKdNodeEdges *SKdNodeEdges::From(SEdgeLl *sell) {
} }
int SKdNodeEdges::AnyEdgeCrossings(Vector a, Vector b, int cnt, int SKdNodeEdges::AnyEdgeCrossings(Vector a, Vector b, int cnt,
Vector *pi, SPointList *spl) Vector *pi, SPointList *spl) const
{ {
int inters = 0; int inters = 0;
if(gt && lt) { if(gt && lt) {
@ -462,11 +459,11 @@ void SPointList::Clear() {
l.Clear(); l.Clear();
} }
bool SPointList::ContainsPoint(Vector pt) { bool SPointList::ContainsPoint(Vector pt) const {
return (IndexForPoint(pt) >= 0); return (IndexForPoint(pt) >= 0);
} }
int SPointList::IndexForPoint(Vector pt) { int SPointList::IndexForPoint(Vector pt) const {
int i; int i;
for(i = 0; i < l.n; i++) { for(i = 0; i < l.n; i++) {
SPoint *p = &(l.elem[i]); SPoint *p = &(l.elem[i]);
@ -506,31 +503,29 @@ void SContour::AddPoint(Vector p) {
l.Add(&sp); l.Add(&sp);
} }
void SContour::MakeEdgesInto(SEdgeList *el) { void SContour::MakeEdgesInto(SEdgeList *el) const {
int i; int i;
for(i = 0; i < (l.n - 1); i++) { for(i = 0; i < (l.n - 1); i++) {
el->AddEdge(l.elem[i].p, l.elem[i+1].p); el->AddEdge(l.elem[i].p, l.elem[i+1].p);
} }
} }
void SContour::CopyInto(SContour *dest) { void SContour::CopyInto(SContour *dest) const {
SPoint *sp; for(const SPoint *sp = l.First(); sp; sp = l.NextAfter(sp)) {
for(sp = l.First(); sp; sp = l.NextAfter(sp)) {
dest->AddPoint(sp->p); dest->AddPoint(sp->p);
} }
} }
void SContour::FindPointWithMinX() { void SContour::FindPointWithMinX() {
SPoint *sp;
xminPt = Vector::From(1e10, 1e10, 1e10); xminPt = Vector::From(1e10, 1e10, 1e10);
for(sp = l.First(); sp; sp = l.NextAfter(sp)) { for(const SPoint *sp = l.First(); sp; sp = l.NextAfter(sp)) {
if(sp->p.x < xminPt.x) { if(sp->p.x < xminPt.x) {
xminPt = sp->p; xminPt = sp->p;
} }
} }
} }
Vector SContour::ComputeNormal() { Vector SContour::ComputeNormal() const {
Vector n = Vector::From(0, 0, 0); Vector n = Vector::From(0, 0, 0);
for(int i = 0; i < l.n - 2; i++) { for(int i = 0; i < l.n - 2; i++) {
@ -544,12 +539,12 @@ Vector SContour::ComputeNormal() {
return n.WithMagnitude(1); return n.WithMagnitude(1);
} }
Vector SContour::AnyEdgeMidpoint() { Vector SContour::AnyEdgeMidpoint() const {
ssassert(l.n >= 2, "Need two points to find a midpoint"); ssassert(l.n >= 2, "Need two points to find a midpoint");
return ((l.elem[0].p).Plus(l.elem[1].p)).ScaledBy(0.5); return ((l.elem[0].p).Plus(l.elem[1].p)).ScaledBy(0.5);
} }
bool SContour::IsClockwiseProjdToNormal(Vector n) { bool SContour::IsClockwiseProjdToNormal(Vector n) const {
// Degenerate things might happen as we draw; doesn't really matter // Degenerate things might happen as we draw; doesn't really matter
// what we do then. // what we do then.
if(n.Magnitude() < 0.01) return true; if(n.Magnitude() < 0.01) return true;
@ -557,7 +552,7 @@ bool SContour::IsClockwiseProjdToNormal(Vector n) {
return (SignedAreaProjdToNormal(n) < 0); return (SignedAreaProjdToNormal(n) < 0);
} }
double SContour::SignedAreaProjdToNormal(Vector n) { double SContour::SignedAreaProjdToNormal(Vector n) const {
// An arbitrary 2d coordinate system that has n as its normal // An arbitrary 2d coordinate system that has n as its normal
Vector u = n.Normal(0); Vector u = n.Normal(0);
Vector v = n.Normal(1); Vector v = n.Normal(1);
@ -574,7 +569,7 @@ double SContour::SignedAreaProjdToNormal(Vector n) {
return area; return area;
} }
bool SContour::ContainsPointProjdToNormal(Vector n, Vector p) { bool SContour::ContainsPointProjdToNormal(Vector n, Vector p) const {
Vector u = n.Normal(0); Vector u = n.Normal(0);
Vector v = n.Normal(1); Vector v = n.Normal(1);
@ -618,7 +613,7 @@ void SPolygon::AddEmptyContour() {
l.Add(&c); l.Add(&c);
} }
void SPolygon::MakeEdgesInto(SEdgeList *el) { void SPolygon::MakeEdgesInto(SEdgeList *el) const {
int i; int i;
for(i = 0; i < l.n; i++) { for(i = 0; i < l.n; i++) {
(l.elem[i]).MakeEdgesInto(el); (l.elem[i]).MakeEdgesInto(el);
@ -630,22 +625,21 @@ Vector SPolygon::ComputeNormal() {
return (l.elem[0]).ComputeNormal(); return (l.elem[0]).ComputeNormal();
} }
double SPolygon::SignedArea() { double SPolygon::SignedArea() const {
SContour *sc;
double area = 0; double area = 0;
// This returns the true area only if the contours are all oriented // This returns the true area only if the contours are all oriented
// correctly, with the holes backwards from the outer contours. // correctly, with the holes backwards from the outer contours.
for(sc = l.First(); sc; sc = l.NextAfter(sc)) { for(const SContour *sc = l.First(); sc; sc = l.NextAfter(sc)) {
area += sc->SignedAreaProjdToNormal(normal); area += sc->SignedAreaProjdToNormal(normal);
} }
return area; return area;
} }
bool SPolygon::ContainsPoint(Vector p) { bool SPolygon::ContainsPoint(Vector p) const {
return (WindingNumberForPoint(p) % 2) == 1; return (WindingNumberForPoint(p) % 2) == 1;
} }
int SPolygon::WindingNumberForPoint(Vector p) { int SPolygon::WindingNumberForPoint(Vector p) const {
int winding = 0; int winding = 0;
int i; int i;
for(i = 0; i < l.n; i++) { for(i = 0; i < l.n; i++) {
@ -690,17 +684,17 @@ void SPolygon::FixContourDirections() {
} }
} }
bool SPolygon::IsEmpty() { bool SPolygon::IsEmpty() const {
if(l.n == 0 || l.elem[0].l.n == 0) return true; if(l.n == 0 || l.elem[0].l.n == 0) return true;
return false; return false;
} }
Vector SPolygon::AnyPoint() { Vector SPolygon::AnyPoint() const {
ssassert(!IsEmpty(), "Need at least one point"); ssassert(!IsEmpty(), "Need at least one point");
return l.elem[0].l.elem[0].p; return l.elem[0].l.elem[0].p;
} }
bool SPolygon::SelfIntersecting(Vector *intersectsAt) { bool SPolygon::SelfIntersecting(Vector *intersectsAt) const {
SEdgeList el = {}; SEdgeList el = {};
MakeEdgesInto(&el); MakeEdgesInto(&el);
SKdNodeEdges *kdtree = SKdNodeEdges::From(&el); SKdNodeEdges *kdtree = SKdNodeEdges::From(&el);
@ -728,7 +722,7 @@ bool SPolygon::SelfIntersecting(Vector *intersectsAt) {
// polygon is in the xy plane, and the contours all go in the right direction // polygon is in the xy plane, and the contours all go in the right direction
// with respect to normal (0, 0, -1). // with respect to normal (0, 0, -1).
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
void SPolygon::OffsetInto(SPolygon *dest, double r) { void SPolygon::OffsetInto(SPolygon *dest, double r) const {
int i; int i;
dest->Clear(); dest->Clear();
for(i = 0; i < l.n; i++) { for(i = 0; i < l.n; i++) {
@ -781,7 +775,7 @@ static bool IntersectionOfLines(double x0A, double y0A, double dxA, double dyA,
return true; return true;
} }
void SContour::OffsetInto(SContour *dest, double r) { void SContour::OffsetInto(SContour *dest, double r) const {
int i; int i;
for(i = 0; i < l.n; i++) { for(i = 0; i < l.n; i++) {

108
src/polygon.h
View File

@ -22,7 +22,7 @@ public:
Vector a, b; Vector a, b;
static SEdge From(Vector a, Vector b); static SEdge From(Vector a, Vector b);
bool EdgeCrosses(Vector a, Vector b, Vector *pi=NULL, SPointList *spl=NULL); bool EdgeCrosses(Vector a, Vector b, Vector *pi=NULL, SPointList *spl=NULL) const;
}; };
class SEdgeList { class SEdgeList {
@ -31,13 +31,13 @@ public:
void Clear(); void Clear();
void AddEdge(Vector a, Vector b, int auxA=0, int auxB=0); void AddEdge(Vector a, Vector b, int auxA=0, int auxB=0);
bool AssemblePolygon(SPolygon *dest, SEdge *errorAt, bool keepDir=false); bool AssemblePolygon(SPolygon *dest, SEdge *errorAt, bool keepDir=false) const;
bool AssembleContour(Vector first, Vector last, SContour *dest, bool AssembleContour(Vector first, Vector last, SContour *dest,
SEdge *errorAt, bool keepDir); SEdge *errorAt, bool keepDir) const;
int AnyEdgeCrossings(Vector a, Vector b, int AnyEdgeCrossings(Vector a, Vector b,
Vector *pi=NULL, SPointList *spl=NULL); Vector *pi=NULL, SPointList *spl=NULL) const;
bool ContainsEdgeFrom(SEdgeList *sel); bool ContainsEdgeFrom(const SEdgeList *sel) const;
bool ContainsEdge(SEdge *se); bool ContainsEdge(const SEdge *se) const;
void CullExtraneousEdges(); void CullExtraneousEdges();
void MergeCollinearSegments(Vector a, Vector b); void MergeCollinearSegments(Vector a, Vector b);
}; };
@ -68,7 +68,7 @@ public:
static SKdNodeEdges *From(SEdgeLl *sell); static SKdNodeEdges *From(SEdgeLl *sell);
static SKdNodeEdges *Alloc(); static SKdNodeEdges *Alloc();
int AnyEdgeCrossings(Vector a, Vector b, int cnt, int AnyEdgeCrossings(Vector a, Vector b, int cnt,
Vector *pi=NULL, SPointList *spl=NULL); Vector *pi=NULL, SPointList *spl=NULL) const;
}; };
class SPoint { class SPoint {
@ -91,8 +91,8 @@ public:
List<SPoint> l; List<SPoint> l;
void Clear(); void Clear();
bool ContainsPoint(Vector pt); bool ContainsPoint(Vector pt) const;
int IndexForPoint(Vector pt); int IndexForPoint(Vector pt) const;
void IncrementTagFor(Vector pt); void IncrementTagFor(Vector pt);
void Add(Vector pt); void Add(Vector pt);
}; };
@ -105,18 +105,18 @@ public:
List<SPoint> l; List<SPoint> l;
void AddPoint(Vector p); void AddPoint(Vector p);
void MakeEdgesInto(SEdgeList *el); void MakeEdgesInto(SEdgeList *el) const;
void Reverse(); void Reverse();
Vector ComputeNormal(); Vector ComputeNormal() const;
double SignedAreaProjdToNormal(Vector n); double SignedAreaProjdToNormal(Vector n) const;
bool IsClockwiseProjdToNormal(Vector n); bool IsClockwiseProjdToNormal(Vector n) const;
bool ContainsPointProjdToNormal(Vector n, Vector p); bool ContainsPointProjdToNormal(Vector n, Vector p) const;
void OffsetInto(SContour *dest, double r); void OffsetInto(SContour *dest, double r) const;
void CopyInto(SContour *dest); void CopyInto(SContour *dest) const;
void FindPointWithMinX(); void FindPointWithMinX();
Vector AnyEdgeMidpoint(); Vector AnyEdgeMidpoint() const;
bool IsEar(int bp, double scaledEps); bool IsEar(int bp, double scaledEps) const;
bool BridgeToContour(SContour *sc, SEdgeList *el, List<Vector> *vl); bool BridgeToContour(SContour *sc, SEdgeList *el, List<Vector> *vl);
void ClipEarInto(SMesh *m, int bp, double scaledEps); void ClipEarInto(SMesh *m, int bp, double scaledEps);
void UvTriangulateInto(SMesh *m, SSurface *srf); void UvTriangulateInto(SMesh *m, SSurface *srf);
@ -134,16 +134,16 @@ public:
Vector ComputeNormal(); Vector ComputeNormal();
void AddEmptyContour(); void AddEmptyContour();
int WindingNumberForPoint(Vector p); int WindingNumberForPoint(Vector p) const;
double SignedArea(); double SignedArea() const;
bool ContainsPoint(Vector p); bool ContainsPoint(Vector p) const;
void MakeEdgesInto(SEdgeList *el); void MakeEdgesInto(SEdgeList *el) const;
void FixContourDirections(); void FixContourDirections();
void Clear(); void Clear();
bool SelfIntersecting(Vector *intersectsAt); bool SelfIntersecting(Vector *intersectsAt) const;
bool IsEmpty(); bool IsEmpty() const;
Vector AnyPoint(); Vector AnyPoint() const;
void OffsetInto(SPolygon *dest, double r); void OffsetInto(SPolygon *dest, double r) const;
void UvTriangulateInto(SMesh *m, SSurface *srf); void UvTriangulateInto(SMesh *m, SSurface *srf);
void UvGridTriangulateInto(SMesh *m, SSurface *srf); void UvGridTriangulateInto(SMesh *m, SSurface *srf);
}; };
@ -156,12 +156,12 @@ public:
Vector an, bn, cn; Vector an, bn, cn;
static STriangle From(STriMeta meta, Vector a, Vector b, Vector c); static STriangle From(STriMeta meta, Vector a, Vector b, Vector c);
Vector Normal(); Vector Normal() const;
void FlipNormal(); void FlipNormal();
double MinAltitude(); double MinAltitude() const;
int WindingNumberForPoint(Vector p); int WindingNumberForPoint(Vector p) const;
bool ContainsPoint(Vector p); bool ContainsPoint(Vector p) const;
bool ContainsPointProjd(Vector n, Vector p); bool ContainsPointProjd(Vector n, Vector p) const;
}; };
class SBsp2 { class SBsp2 {
@ -180,12 +180,13 @@ public:
enum { POS = 100, NEG = 101, COPLANAR = 200 }; enum { POS = 100, NEG = 101, COPLANAR = 200 };
void InsertTriangleHow(int how, STriangle *tr, SMesh *m, SBsp3 *bsp3); void InsertTriangleHow(int how, STriangle *tr, SMesh *m, SBsp3 *bsp3);
void InsertTriangle(STriangle *tr, SMesh *m, SBsp3 *bsp3); void InsertTriangle(STriangle *tr, SMesh *m, SBsp3 *bsp3);
Vector IntersectionWith(Vector a, Vector b); Vector IntersectionWith(Vector a, Vector b) const;
void InsertEdge(SEdge *nedge, Vector nnp, Vector out); void InsertEdge(SEdge *nedge, Vector nnp, Vector out);
static SBsp2 *InsertOrCreateEdge(SBsp2 *where, SEdge *nedge, Vector nnp, Vector out); static SBsp2 *InsertOrCreateEdge(SBsp2 *where, SEdge *nedge,
Vector nnp, Vector out);
static SBsp2 *Alloc(); static SBsp2 *Alloc();
void DebugDraw(Vector n, double d); void DebugDraw(Vector n, double d) const;
}; };
class SBsp3 { class SBsp3 {
@ -204,7 +205,7 @@ public:
static SBsp3 *Alloc(); static SBsp3 *Alloc();
static SBsp3 *FromMesh(SMesh *m); static SBsp3 *FromMesh(SMesh *m);
Vector IntersectionWith(Vector a, Vector b); Vector IntersectionWith(Vector a, Vector b) const;
enum { POS = 100, NEG = 101, COPLANAR = 200 }; enum { POS = 100, NEG = 101, COPLANAR = 200 };
void InsertHow(int how, STriangle *str, SMesh *instead); void InsertHow(int how, STriangle *str, SMesh *instead);
@ -217,9 +218,9 @@ public:
void InsertInPlane(bool pos2, STriangle *tr, SMesh *m); void InsertInPlane(bool pos2, STriangle *tr, SMesh *m);
void GenerateInPaintOrder(SMesh *m); void GenerateInPaintOrder(SMesh *m) const;
void DebugDraw(); void DebugDraw() const;
}; };
class SMesh { class SMesh {
@ -232,11 +233,12 @@ public:
bool isTransparent; bool isTransparent;
void Clear(); void Clear();
void AddTriangle(STriangle *st); void AddTriangle(const STriangle *st);
void AddTriangle(STriMeta meta, Vector a, Vector b, Vector c); void AddTriangle(STriMeta meta, Vector a, Vector b, Vector c);
void AddTriangle(STriMeta meta, Vector n, Vector a, Vector b, Vector c); void AddTriangle(STriMeta meta, Vector n,
void DoBounding(Vector v, Vector *vmax, Vector *vmin); Vector a, Vector b, Vector c);
void GetBounding(Vector *vmax, Vector *vmin); void DoBounding(Vector v, Vector *vmax, Vector *vmin) const;
void GetBounding(Vector *vmax, Vector *vmin) const;
void Simplify(int start); void Simplify(int start);
@ -245,17 +247,17 @@ public:
void MakeFromDifferenceOf(SMesh *a, SMesh *b); void MakeFromDifferenceOf(SMesh *a, SMesh *b);
void MakeFromCopyOf(SMesh *a); void MakeFromCopyOf(SMesh *a);
void MakeFromTransformationOf(SMesh *a, void MakeFromTransformationOf(SMesh *a, Vector trans,
Vector trans, Quaternion q, double scale); Quaternion q, double scale);
void MakeFromAssemblyOf(SMesh *a, SMesh *b); void MakeFromAssemblyOf(SMesh *a, SMesh *b);
void MakeEdgesInPlaneInto(SEdgeList *sel, Vector n, double d); void MakeEdgesInPlaneInto(SEdgeList *sel, Vector n, double d);
void MakeCertainEdgesAndOutlinesInto(SEdgeList *sel, SOutlineList *sol, int type); void MakeCertainEdgesAndOutlinesInto(SEdgeList *sel, SOutlineList *sol, int type);
bool IsEmpty(); bool IsEmpty() const;
void RemapFaces(Group *g, int remap); void RemapFaces(Group *g, int remap);
uint32_t FirstIntersectionWith(Point2d mp); uint32_t FirstIntersectionWith(Point2d mp) const;
}; };
// A linked list of triangles // A linked list of triangles
@ -310,11 +312,11 @@ public:
static SKdNode *From(STriangleLl *tll); static SKdNode *From(STriangleLl *tll);
void AddTriangle(STriangle *tr); void AddTriangle(STriangle *tr);
void MakeMeshInto(SMesh *m); void MakeMeshInto(SMesh *m) const;
void ListTrianglesInto(std::vector<STriangle *> *tl); void ListTrianglesInto(std::vector<STriangle *> *tl) const;
void ClearTags(); void ClearTags() const;
void FindEdgeOn(Vector a, Vector b, int cnt, bool coplanarIsInter, EdgeOnInfo *info); void FindEdgeOn(Vector a, Vector b, int cnt, bool coplanarIsInter, EdgeOnInfo *info) const;
enum { enum {
NAKED_OR_SELF_INTER_EDGES = 100, NAKED_OR_SELF_INTER_EDGES = 100,
SELF_INTER_EDGES = 200, SELF_INTER_EDGES = 200,
@ -323,11 +325,11 @@ public:
SHARP_EDGES = 500, SHARP_EDGES = 500,
}; };
void MakeCertainEdgesInto(SEdgeList *sel, int how, bool coplanarIsInter, void MakeCertainEdgesInto(SEdgeList *sel, int how, bool coplanarIsInter,
bool *inter, bool *leaky, int auxA=0); bool *inter, bool *leaky, int auxA = 0) const;
void MakeOutlinesInto(SOutlineList *sel); void MakeOutlinesInto(SOutlineList *sel) const;
void OcclusionTestLine(SEdge orig, SEdgeList *sel, int cnt, bool removeHidden); void OcclusionTestLine(SEdge orig, SEdgeList *sel, int cnt, bool removeHidden) const;
void SplitLinesAgainstTriangle(SEdgeList *sel, STriangle *tr, bool removeHidden); void SplitLinesAgainstTriangle(SEdgeList *sel, STriangle *tr, bool removeHidden) const;
void SnapToMesh(SMesh *m); void SnapToMesh(SMesh *m);
void SnapToVertex(Vector v, SMesh *extras); void SnapToVertex(Vector v, SMesh *extras);

6
src/request.cpp
View File

@ -83,7 +83,7 @@ int EntReqTable::GetRequestForEntity(int ent) {
void Request::Generate(IdList<Entity,hEntity> *entity, void Request::Generate(IdList<Entity,hEntity> *entity,
IdList<Param,hParam> *param) IdList<Param,hParam> *param) const
{ {
int points = 0; int points = 0;
int et = 0; int et = 0;
@ -169,7 +169,7 @@ void Request::Generate(IdList<Entity,hEntity> *entity,
if(et) entity->Add(&e); if(et) entity->Add(&e);
} }
std::string Request::DescriptionString() { std::string Request::DescriptionString() const {
const char *s; const char *s;
if(h.v == Request::HREQUEST_REFERENCE_XY.v) { if(h.v == Request::HREQUEST_REFERENCE_XY.v) {
s = "#XY"; s = "#XY";
@ -184,7 +184,7 @@ std::string Request::DescriptionString() {
return ssprintf("r%03x-%s", h.v, s); return ssprintf("r%03x-%s", h.v, s);
} }
int Request::IndexOfPoint(hEntity he) { int Request::IndexOfPoint(hEntity he) const {
if(type == DATUM_POINT) { if(type == DATUM_POINT) {
return (he.v == h.entity(0).v) ? 0 : -1; return (he.v == h.entity(0).v) ? 0 : -1;
} }

193
src/sketch.h
View File

@ -21,7 +21,6 @@ class Param;
class Equation; class Equation;
class Style; class Style;
// All of the hWhatever handles are a 32-bit ID, that is used to represent // All of the hWhatever handles are a 32-bit ID, that is used to represent
// some data structure in the sketch. // some data structure in the sketch.
class hGroup { class hGroup {
@ -29,19 +28,19 @@ public:
// bits 15: 0 -- group index // bits 15: 0 -- group index
uint32_t v; uint32_t v;
inline hEntity entity(int i); inline hEntity entity(int i) const;
inline hParam param(int i); inline hParam param(int i) const;
inline hEquation equation(int i); inline hEquation equation(int i) const;
}; };
class hRequest { class hRequest {
public: public:
// bits 15: 0 -- request index // bits 15: 0 -- request index
uint32_t v; uint32_t v;
inline hEntity entity(int i); inline hEntity entity(int i) const;
inline hParam param(int i); inline hParam param(int i) const;
inline bool IsFromReferences(); inline bool IsFromReferences() const;
}; };
class hEntity { class hEntity {
public: public:
@ -49,10 +48,10 @@ public:
// 31:16 -- request index // 31:16 -- request index
uint32_t v; uint32_t v;
inline bool isFromRequest(); inline bool isFromRequest() const;
inline hRequest request(); inline hRequest request() const;
inline hGroup group(); inline hGroup group() const;
inline hEquation equation(int i); inline hEquation equation(int i) const;
}; };
class hParam { class hParam {
public: public:
@ -60,7 +59,7 @@ public:
// 31:16 -- request index // 31:16 -- request index
uint32_t v; uint32_t v;
inline hRequest request(); inline hRequest request() const;
}; };
class hStyle { class hStyle {
@ -68,7 +67,6 @@ public:
uint32_t v; uint32_t v;
}; };
class EntityId { class EntityId {
public: public:
uint32_t v; // entity ID, starting from 0 uint32_t v; // entity ID, starting from 0
@ -301,10 +299,10 @@ public:
std::string font; std::string font;
static hParam AddParam(ParamList *param, hParam hp); static hParam AddParam(ParamList *param, hParam hp);
void Generate(EntityList *entity, ParamList *param); void Generate(EntityList *entity, ParamList *param) const;
std::string DescriptionString(); std::string DescriptionString() const;
int IndexOfPoint(hEntity he); int IndexOfPoint(hEntity he) const;
void Clear() {} void Clear() {}
}; };
@ -378,75 +376,75 @@ public:
// times to apply the transformation. // times to apply the transformation.
int timesApplied; int timesApplied;
Quaternion GetAxisAngleQuaternion(int param0); Quaternion GetAxisAngleQuaternion(int param0) const;
ExprQuaternion GetAxisAngleQuaternionExprs(int param0); ExprQuaternion GetAxisAngleQuaternionExprs(int param0) const;
bool IsCircle(); bool IsCircle() const;
Expr *CircleGetRadiusExpr(); Expr *CircleGetRadiusExpr() const;
double CircleGetRadiusNum(); double CircleGetRadiusNum() const;
void ArcGetAngles(double *thetaa, double *thetab, double *dtheta); void ArcGetAngles(double *thetaa, double *thetab, double *dtheta) const;
bool HasVector(); bool HasVector() const;
ExprVector VectorGetExprs(); ExprVector VectorGetExprs() const;
Vector VectorGetNum(); Vector VectorGetNum() const;
Vector VectorGetRefPoint(); Vector VectorGetRefPoint() const;
Vector VectorGetStartPoint(); Vector VectorGetStartPoint() const;
// For distances // For distances
bool IsDistance(); bool IsDistance() const;
double DistanceGetNum(); double DistanceGetNum() const;
Expr *DistanceGetExpr(); Expr *DistanceGetExpr() const;
void DistanceForceTo(double v); void DistanceForceTo(double v);
bool IsWorkplane(); bool IsWorkplane() const;
// The plane is points P such that P dot (xn, yn, zn) - d = 0 // The plane is points P such that P dot (xn, yn, zn) - d = 0
void WorkplaneGetPlaneExprs(ExprVector *n, Expr **d); void WorkplaneGetPlaneExprs(ExprVector *n, Expr **d) const;
ExprVector WorkplaneGetOffsetExprs(); ExprVector WorkplaneGetOffsetExprs() const;
Vector WorkplaneGetOffset(); Vector WorkplaneGetOffset() const;
EntityBase *Normal(); EntityBase *Normal() const;
bool IsFace(); bool IsFace() const;
ExprVector FaceGetNormalExprs(); ExprVector FaceGetNormalExprs() const;
Vector FaceGetNormalNum(); Vector FaceGetNormalNum() const;
ExprVector FaceGetPointExprs(); ExprVector FaceGetPointExprs() const;
Vector FaceGetPointNum(); Vector FaceGetPointNum() const;
bool IsPoint(); bool IsPoint() const;
// Applies for any of the point types // Applies for any of the point types
Vector PointGetNum(); Vector PointGetNum() const;
ExprVector PointGetExprs(); ExprVector PointGetExprs() const;
void PointGetExprsInWorkplane(hEntity wrkpl, Expr **u, Expr **v); void PointGetExprsInWorkplane(hEntity wrkpl, Expr **u, Expr **v) const;
void PointForceTo(Vector v); void PointForceTo(Vector v);
// These apply only the POINT_N_ROT_TRANS, which has an assoc rotation // These apply only the POINT_N_ROT_TRANS, which has an assoc rotation
Quaternion PointGetQuaternion(); Quaternion PointGetQuaternion() const;
void PointForceQuaternionTo(Quaternion q); void PointForceQuaternionTo(Quaternion q);
bool IsNormal(); bool IsNormal() const;
// Applies for any of the normal types // Applies for any of the normal types
Quaternion NormalGetNum(); Quaternion NormalGetNum() const;
ExprQuaternion NormalGetExprs(); ExprQuaternion NormalGetExprs() const;
void NormalForceTo(Quaternion q); void NormalForceTo(Quaternion q);
Vector NormalU(); Vector NormalU() const;
Vector NormalV(); Vector NormalV() const;
Vector NormalN(); Vector NormalN() const;
ExprVector NormalExprsU(); ExprVector NormalExprsU() const;
ExprVector NormalExprsV(); ExprVector NormalExprsV() const;
ExprVector NormalExprsN(); ExprVector NormalExprsN() const;
Vector CubicGetStartNum(); Vector CubicGetStartNum() const;
Vector CubicGetFinishNum(); Vector CubicGetFinishNum() const;
ExprVector CubicGetStartTangentExprs(); ExprVector CubicGetStartTangentExprs() const;
ExprVector CubicGetFinishTangentExprs(); ExprVector CubicGetFinishTangentExprs() const;
Vector CubicGetStartTangentNum(); Vector CubicGetStartTangentNum() const;
Vector CubicGetFinishTangentNum(); Vector CubicGetFinishTangentNum() const;
bool HasEndpoints(); bool HasEndpoints() const;
Vector EndpointStart(); Vector EndpointStart() const;
Vector EndpointFinish(); Vector EndpointFinish() const;
void AddEq(IdList<Equation,hEquation> *l, Expr *expr, int index); void AddEq(IdList<Equation,hEquation> *l, Expr *expr, int index) const;
void GenerateEquations(IdList<Equation,hEquation> *l); void GenerateEquations(IdList<Equation,hEquation> *l) const;
void Clear() {} void Clear() {}
}; };
@ -499,15 +497,16 @@ public:
int stippleType; int stippleType;
int data; int data;
} dogd; // state for drawing or getting distance (for hit testing) } dogd; // state for drawing or getting distance (for hit testing)
void LineDrawOrGetDistance(Vector a, Vector b, bool maybeFat=false, int userData = -1); void LineDrawOrGetDistance(Vector a, Vector b, bool maybeFat=false, int userData = -1);
void DrawOrGetDistance(); void DrawOrGetDistance();
bool IsStylable(); bool IsStylable() const;
bool IsVisible(); bool IsVisible() const;
bool PointIsFromReferences(); bool PointIsFromReferences() const;
void ComputeInterpolatingSpline(SBezierList *sbl, bool periodic); void ComputeInterpolatingSpline(SBezierList *sbl, bool periodic) const;
void GenerateBezierCurves(SBezierList *sbl); void GenerateBezierCurves(SBezierList *sbl) const;
void GenerateEdges(SEdgeList *el, bool includingConstruction=false); void GenerateEdges(SEdgeList *el, bool includingConstruction=false);
static void DrawAll(bool drawAsHidden); static void DrawAll(bool drawAsHidden);
@ -517,7 +516,7 @@ public:
void CalculateNumerical(bool forExport); void CalculateNumerical(bool forExport);
std::string DescriptionString(); std::string DescriptionString() const;
SBezierList *GetOrGenerateBezierCurves(); SBezierList *GetOrGenerateBezierCurves();
SEdgeList *GetOrGenerateEdges(); SEdgeList *GetOrGenerateEdges();
@ -575,7 +574,7 @@ class hConstraint {
public: public:
uint32_t v; uint32_t v;
inline hEquation equation(int i); inline hEquation equation(int i) const;
}; };
class ConstraintBase { class ConstraintBase {
@ -643,13 +642,13 @@ public:
bool reference; // a ref dimension, that generates no eqs bool reference; // a ref dimension, that generates no eqs
std::string comment; // since comments are represented as constraints std::string comment; // since comments are represented as constraints
bool HasLabel(); bool HasLabel() const;
void Generate(IdList<Equation,hEquation> *l); void Generate(IdList<Equation,hEquation> *l) const;
void GenerateReal(IdList<Equation,hEquation> *l); void GenerateReal(IdList<Equation,hEquation> *l) const;
// Some helpers when generating symbolic constraint equations // Some helpers when generating symbolic constraint equations
void ModifyToSatisfy(); void ModifyToSatisfy();
void AddEq(IdList<Equation,hEquation> *l, Expr *expr, int index); void AddEq(IdList<Equation,hEquation> *l, Expr *expr, int index) const;
static Expr *DirectionCosine(hEntity wrkpl, ExprVector ae, ExprVector be); static Expr *DirectionCosine(hEntity wrkpl, ExprVector ae, ExprVector be);
static Expr *Distance(hEntity workplane, hEntity pa, hEntity pb); static Expr *Distance(hEntity workplane, hEntity pa, hEntity pb);
static Expr *PointLineDistance(hEntity workplane, hEntity pt, hEntity ln); static Expr *PointLineDistance(hEntity workplane, hEntity pt, hEntity ln);
@ -685,14 +684,14 @@ public:
Vector GetReferencePos(); Vector GetReferencePos();
void Draw(); void Draw();
void GetEdges(SEdgeList *sel); void GetEdges(SEdgeList *sel);
bool IsStylable(); bool IsStylable() const;
hStyle GetStyle() const; hStyle GetStyle() const;
bool HasLabel(); bool HasLabel() const;
void LineDrawOrGetDistance(Vector a, Vector b); void LineDrawOrGetDistance(Vector a, Vector b);
bool IsVisible() const; bool IsVisible() const;
void DrawOrGetDistance(Vector *labelPos); void DrawOrGetDistance(Vector *labelPos);
std::string Label(); std::string Label() const;
bool DoLineExtend(Vector p0, Vector p1, Vector pt, double salient); bool DoLineExtend(Vector p0, Vector p1, Vector pt, double salient);
void DoArcForAngle(Vector a0, Vector da, Vector b0, Vector db, void DoArcForAngle(Vector a0, Vector da, Vector b0, Vector db,
Vector offset, Vector *ref, bool trim); Vector offset, Vector *ref, bool trim);
@ -706,7 +705,7 @@ public:
void DoEqualLenTicks(Vector a, Vector b, Vector gn); void DoEqualLenTicks(Vector a, Vector b, Vector gn);
void DoEqualRadiusTicks(hEntity he); void DoEqualRadiusTicks(hEntity he);
std::string DescriptionString(); std::string DescriptionString() const;
static hConstraint AddConstraint(Constraint *c, bool rememberForUndo); static hConstraint AddConstraint(Constraint *c, bool rememberForUndo);
static hConstraint AddConstraint(Constraint *c); static hConstraint AddConstraint(Constraint *c);
@ -724,8 +723,8 @@ class hEquation {
public: public:
uint32_t v; uint32_t v;
inline bool isFromConstraint(); inline bool isFromConstraint() const;
inline hConstraint constraint(); inline hConstraint constraint() const;
}; };
class Equation { class Equation {
@ -850,49 +849,49 @@ public:
static int PatternType(hStyle hs); static int PatternType(hStyle hs);
static double StippleScaleMm(hStyle hs); static double StippleScaleMm(hStyle hs);
std::string DescriptionString(); std::string DescriptionString() const;
void Clear() {} void Clear() {}
}; };
inline hEntity hGroup::entity(int i) inline hEntity hGroup::entity(int i) const
{ hEntity r; r.v = 0x80000000 | (v << 16) | (uint32_t)i; return r; } { hEntity r; r.v = 0x80000000 | (v << 16) | (uint32_t)i; return r; }
inline hParam hGroup::param(int i) inline hParam hGroup::param(int i) const
{ hParam r; r.v = 0x80000000 | (v << 16) | (uint32_t)i; return r; } { hParam r; r.v = 0x80000000 | (v << 16) | (uint32_t)i; return r; }
inline hEquation hGroup::equation(int i) inline hEquation hGroup::equation(int i) const
{ hEquation r; r.v = (v << 16) | 0x80000000 | (uint32_t)i; return r; } { hEquation r; r.v = (v << 16) | 0x80000000 | (uint32_t)i; return r; }
inline bool hRequest::IsFromReferences() { inline bool hRequest::IsFromReferences() const {
if(v == Request::HREQUEST_REFERENCE_XY.v) return true; if(v == Request::HREQUEST_REFERENCE_XY.v) return true;
if(v == Request::HREQUEST_REFERENCE_YZ.v) return true; if(v == Request::HREQUEST_REFERENCE_YZ.v) return true;
if(v == Request::HREQUEST_REFERENCE_ZX.v) return true; if(v == Request::HREQUEST_REFERENCE_ZX.v) return true;
return false; return false;
} }
inline hEntity hRequest::entity(int i) inline hEntity hRequest::entity(int i) const
{ hEntity r; r.v = (v << 16) | (uint32_t)i; return r; } { hEntity r; r.v = (v << 16) | (uint32_t)i; return r; }
inline hParam hRequest::param(int i) inline hParam hRequest::param(int i) const
{ hParam r; r.v = (v << 16) | (uint32_t)i; return r; } { hParam r; r.v = (v << 16) | (uint32_t)i; return r; }
inline bool hEntity::isFromRequest() inline bool hEntity::isFromRequest() const
{ if(v & 0x80000000) return false; else return true; } { if(v & 0x80000000) return false; else return true; }
inline hRequest hEntity::request() inline hRequest hEntity::request() const
{ hRequest r; r.v = (v >> 16); return r; } { hRequest r; r.v = (v >> 16); return r; }
inline hGroup hEntity::group() inline hGroup hEntity::group() const
{ hGroup r; r.v = (v >> 16) & 0x3fff; return r; } { hGroup r; r.v = (v >> 16) & 0x3fff; return r; }
inline hEquation hEntity::equation(int i) inline hEquation hEntity::equation(int i) const
{ hEquation r; r.v = v | 0x40000000; return r; } { hEquation r; r.v = v | 0x40000000; return r; }
inline hRequest hParam::request() inline hRequest hParam::request() const
{ hRequest r; r.v = (v >> 16); return r; } { hRequest r; r.v = (v >> 16); return r; }
inline hEquation hConstraint::equation(int i) inline hEquation hConstraint::equation(int i) const
{ hEquation r; r.v = (v << 16) | (uint32_t)i; return r; } { hEquation r; r.v = (v << 16) | (uint32_t)i; return r; }
inline bool hEquation::isFromConstraint() inline bool hEquation::isFromConstraint() const
{ if(v & 0xc0000000) return false; else return true; } { if(v & 0xc0000000) return false; else return true; }
inline hConstraint hEquation::constraint() inline hConstraint hEquation::constraint() const
{ hConstraint r; r.v = (v >> 16); return r; } { hConstraint r; r.v = (v >> 16); return r; }
// The format for entities stored on the clipboard. // The format for entities stored on the clipboard.

7
src/solvespace.h
View File

@ -521,7 +521,7 @@ public:
void BezierAsPwl(SBezier *sb); void BezierAsPwl(SBezier *sb);
void BezierAsNonrationalCubic(SBezier *sb, int depth=0); void BezierAsNonrationalCubic(SBezier *sb, int depth=0);
virtual void StartPath( RgbaColor strokeRgb, double lineWidth, virtual void StartPath(RgbaColor strokeRgb, double lineWidth,
bool filled, RgbaColor fillRgb, hStyle hs) = 0; bool filled, RgbaColor fillRgb, hStyle hs) = 0;
virtual void FinishPath(RgbaColor strokeRgb, double lineWidth, virtual void FinishPath(RgbaColor strokeRgb, double lineWidth,
bool filled, RgbaColor fillRgb, hStyle hs) = 0; bool filled, RgbaColor fillRgb, hStyle hs) = 0;
@ -856,7 +856,8 @@ public:
void ExportWireframeCurves(SEdgeList *sel, SBezierList *sbl, void ExportWireframeCurves(SEdgeList *sel, SBezierList *sbl,
VectorFileWriter *out); VectorFileWriter *out);
void ExportLinesAndMesh(SEdgeList *sel, SBezierList *sbl, SMesh *sm, void ExportLinesAndMesh(SEdgeList *sel, SBezierList *sbl, SMesh *sm,
Vector u, Vector v, Vector n, Vector origin, Vector u, Vector v,
Vector n, Vector origin,
double cameraTan, double cameraTan,
VectorFileWriter *out); VectorFileWriter *out);
@ -974,7 +975,7 @@ void ImportDwg(const std::string &file);
extern SolveSpaceUI SS; extern SolveSpaceUI SS;
extern Sketch SK; extern Sketch SK;
}; }
#ifndef __OBJC__ #ifndef __OBJC__
using namespace SolveSpace; using namespace SolveSpace;

29
src/srf/boolean.cpp
View File

@ -36,13 +36,13 @@ static int ByTAlongLine(const void *av, const void *bv)
return (ta > tb) ? 1 : -1; return (ta > tb) ? 1 : -1;
} }
SCurve SCurve::MakeCopySplitAgainst(SShell *agnstA, SShell *agnstB, SCurve SCurve::MakeCopySplitAgainst(SShell *agnstA, SShell *agnstB,
SSurface *srfA, SSurface *srfB) SSurface *srfA, SSurface *srfB) const
{ {
SCurve ret; SCurve ret;
ret = *this; ret = *this;
ret.pts = {}; ret.pts = {};
SCurvePt *p = pts.First(); const SCurvePt *p = pts.First();
ssassert(p != NULL, "Cannot split an empty curve"); ssassert(p != NULL, "Cannot split an empty curve");
SCurvePt prev = *p; SCurvePt prev = *p;
ret.pts.Add(p); ret.pts.Add(p);
@ -602,9 +602,7 @@ SSurface SSurface::MakeCopyTrimAgainst(SShell *parent,
return ret; return ret;
} }
void SShell::CopySurfacesTrimAgainst(SShell *sha, SShell *shb, SShell *into, void SShell::CopySurfacesTrimAgainst(SShell *sha, SShell *shb, SShell *into, int type) {
int type)
{
SSurface *ss; SSurface *ss;
for(ss = surface.First(); ss; ss = surface.NextAfter(ss)) { for(ss = surface.First(); ss; ss = surface.NextAfter(ss)) {
SSurface ssn; SSurface ssn;
@ -785,6 +783,7 @@ static int ByLength(const void *av, const void *bv)
// stability for the normals. // stability for the normals.
return (la < lb) ? 1 : -1; return (la < lb) ? 1 : -1;
} }
SBspUv *SBspUv::From(SEdgeList *el, SSurface *srf) { SBspUv *SBspUv::From(SEdgeList *el, SSurface *srf) {
SEdgeList work = {}; SEdgeList work = {};
@ -812,7 +811,8 @@ SBspUv *SBspUv::From(SEdgeList *el, SSurface *srf) {
// time we care about exact correctness is when we're very close to the line, // time we care about exact correctness is when we're very close to the line,
// which is when the linearization is accurate. // which is when the linearization is accurate.
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
void SBspUv::ScalePoints(Point2d *pt, Point2d *a, Point2d *b, SSurface *srf) {
void SBspUv::ScalePoints(Point2d *pt, Point2d *a, Point2d *b, SSurface *srf) const {
Vector tu, tv; Vector tu, tv;
srf->TangentsAt(pt->x, pt->y, &tu, &tv); srf->TangentsAt(pt->x, pt->y, &tu, &tv);
double mu = tu.Magnitude(), mv = tv.Magnitude(); double mu = tu.Magnitude(), mv = tv.Magnitude();
@ -821,8 +821,9 @@ void SBspUv::ScalePoints(Point2d *pt, Point2d *a, Point2d *b, SSurface *srf) {
a ->x *= mu; a ->y *= mv; a ->x *= mu; a ->y *= mv;
b ->x *= mu; b ->y *= mv; b ->x *= mu; b ->y *= mv;
} }
double SBspUv::ScaledSignedDistanceToLine(Point2d pt, Point2d a, Point2d b, double SBspUv::ScaledSignedDistanceToLine(Point2d pt, Point2d a, Point2d b,
SSurface *srf) SSurface *srf) const
{ {
ScalePoints(&pt, &a, &b, srf); ScalePoints(&pt, &a, &b, srf);
@ -831,15 +832,16 @@ double SBspUv::ScaledSignedDistanceToLine(Point2d pt, Point2d a, Point2d b,
return pt.Dot(n) - d; return pt.Dot(n) - d;
} }
double SBspUv::ScaledDistanceToLine(Point2d pt, Point2d a, Point2d b, bool seg, double SBspUv::ScaledDistanceToLine(Point2d pt, Point2d a, Point2d b, bool seg,
SSurface *srf) SSurface *srf) const
{ {
ScalePoints(&pt, &a, &b, srf); ScalePoints(&pt, &a, &b, srf);
return pt.DistanceToLine(a, b, seg); return pt.DistanceToLine(a, b, seg);
} }
SBspUv *SBspUv::InsertOrCreateEdge(SBspUv *where, const Point2d &ea, const Point2d &eb, SSurface *srf) { SBspUv *SBspUv::InsertOrCreateEdge(SBspUv *where, Point2d ea, Point2d eb, SSurface *srf) {
if(where == NULL) { if(where == NULL) {
SBspUv *ret = Alloc(); SBspUv *ret = Alloc();
ret->a = ea; ret->a = ea;
@ -896,12 +898,11 @@ void SBspUv::InsertEdge(Point2d ea, Point2d eb, SSurface *srf) {
return; return;
} }
int SBspUv::ClassifyPoint(Point2d p, Point2d eb, SSurface *srf) { int SBspUv::ClassifyPoint(Point2d p, Point2d eb, SSurface *srf) const {
double dp = ScaledSignedDistanceToLine(p, a, b, srf); double dp = ScaledSignedDistanceToLine(p, a, b, srf);
if(fabs(dp) < LENGTH_EPS) { if(fabs(dp) < LENGTH_EPS) {
SBspUv *f = this; const SBspUv *f = this;
while(f) { while(f) {
Point2d ba = (f->b).Minus(f->a); Point2d ba = (f->b).Minus(f->a);
if(ScaledDistanceToLine(p, f->a, ba, true, srf) < LENGTH_EPS) { if(ScaledDistanceToLine(p, f->a, ba, true, srf) < LENGTH_EPS) {
@ -931,7 +932,7 @@ int SBspUv::ClassifyPoint(Point2d p, Point2d eb, SSurface *srf) {
} }
} }
int SBspUv::ClassifyEdge(Point2d ea, Point2d eb, SSurface *srf) { int SBspUv::ClassifyEdge(Point2d ea, Point2d eb, SSurface *srf) const {
int ret = ClassifyPoint((ea.Plus(eb)).ScaledBy(0.5), eb, srf); int ret = ClassifyPoint((ea.Plus(eb)).ScaledBy(0.5), eb, srf);
if(ret == EDGE_OTHER) { if(ret == EDGE_OTHER) {
// Perhaps the edge is tangent at its midpoint (and we screwed up // Perhaps the edge is tangent at its midpoint (and we screwed up
@ -942,7 +943,7 @@ int SBspUv::ClassifyEdge(Point2d ea, Point2d eb, SSurface *srf) {
return ret; return ret;
} }
double SBspUv::MinimumDistanceToEdge(Point2d p, SSurface *srf) { double SBspUv::MinimumDistanceToEdge(Point2d p, SSurface *srf) const {
double dn = (neg) ? neg->MinimumDistanceToEdge(p, srf) : VERY_POSITIVE; double dn = (neg) ? neg->MinimumDistanceToEdge(p, srf) : VERY_POSITIVE;
double dp = (pos) ? pos->MinimumDistanceToEdge(p, srf) : VERY_POSITIVE; double dp = (pos) ? pos->MinimumDistanceToEdge(p, srf) : VERY_POSITIVE;

66
src/srf/curve.cpp
View File

@ -60,11 +60,11 @@ SBezier SBezier::From(Vector p0, Vector p1, Vector p2, Vector p3) {
p3.Project4d()); p3.Project4d());
} }
Vector SBezier::Start() { Vector SBezier::Start() const {
return ctrl[0]; return ctrl[0];
} }
Vector SBezier::Finish() { Vector SBezier::Finish() const {
return ctrl[deg]; return ctrl[deg];
} }
@ -84,7 +84,7 @@ void SBezier::ScaleSelfBy(double s) {
} }
void SBezier::GetBoundingProjd(Vector u, Vector orig, void SBezier::GetBoundingProjd(Vector u, Vector orig,
double *umin, double *umax) double *umin, double *umax) const
{ {
int i; int i;
for(i = 0; i <= deg; i++) { for(i = 0; i <= deg; i++) {
@ -94,7 +94,7 @@ void SBezier::GetBoundingProjd(Vector u, Vector orig,
} }
} }
SBezier SBezier::TransformedBy(Vector t, Quaternion q, double scale) { SBezier SBezier::TransformedBy(Vector t, Quaternion q, double scale) const {
SBezier ret = *this; SBezier ret = *this;
int i; int i;
for(i = 0; i <= deg; i++) { for(i = 0; i <= deg; i++) {
@ -108,7 +108,7 @@ SBezier SBezier::TransformedBy(Vector t, Quaternion q, double scale) {
// Does this curve lie entirely within the specified plane? It does if all // Does this curve lie entirely within the specified plane? It does if all
// the control points lie in that plane. // the control points lie in that plane.
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
bool SBezier::IsInPlane(Vector n, double d) { bool SBezier::IsInPlane(Vector n, double d) const {
int i; int i;
for(i = 0; i <= deg; i++) { for(i = 0; i <= deg; i++) {
if(fabs((ctrl[i]).Dot(n) - d) > LENGTH_EPS) { if(fabs((ctrl[i]).Dot(n) - d) > LENGTH_EPS) {
@ -122,7 +122,7 @@ bool SBezier::IsInPlane(Vector n, double d) {
// Is this Bezier exactly the arc of a circle, projected along the specified // Is this Bezier exactly the arc of a circle, projected along the specified
// axis? If yes, return that circle's center and radius. // axis? If yes, return that circle's center and radius.
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
bool SBezier::IsCircle(Vector axis, Vector *center, double *r) { bool SBezier::IsCircle(Vector axis, Vector *center, double *r) const {
if(deg != 2) return false; if(deg != 2) return false;
if(ctrl[1].DistanceToLine(ctrl[0], ctrl[2].Minus(ctrl[0])) < LENGTH_EPS) { if(ctrl[1].DistanceToLine(ctrl[0], ctrl[2].Minus(ctrl[0])) < LENGTH_EPS) {
@ -170,7 +170,7 @@ bool SBezier::IsCircle(Vector axis, Vector *center, double *r) {
return true; return true;
} }
bool SBezier::IsRational() { bool SBezier::IsRational() const {
int i; int i;
for(i = 0; i <= deg; i++) { for(i = 0; i <= deg; i++) {
if(fabs(weight[i] - 1) > LENGTH_EPS) return true; if(fabs(weight[i] - 1) > LENGTH_EPS) return true;
@ -183,7 +183,7 @@ bool SBezier::IsRational() {
// the new weights as required. // the new weights as required.
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
SBezier SBezier::InPerspective(Vector u, Vector v, Vector n, SBezier SBezier::InPerspective(Vector u, Vector v, Vector n,
Vector origin, double cameraTan) Vector origin, double cameraTan) const
{ {
Quaternion q = Quaternion::From(u, v); Quaternion q = Quaternion::From(u, v);
q = q.Inverse(); q = q.Inverse();
@ -206,7 +206,7 @@ SBezier SBezier::InPerspective(Vector u, Vector v, Vector n,
return ret; return ret;
} }
bool SBezier::Equals(SBezier *b) { bool SBezier::Equals(SBezier *b) const {
// We just test of identical degree and control points, even though two // We just test of identical degree and control points, even though two
// curves could still be coincident (even sharing endpoints). // curves could still be coincident (even sharing endpoints).
if(deg != b->deg) return false; if(deg != b->deg) return false;
@ -262,15 +262,14 @@ void SBezierList::CullIdenticalBeziers() {
// curves. So this will screw up on tangencies and stuff, but otherwise should // curves. So this will screw up on tangencies and stuff, but otherwise should
// be fine. // be fine.
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
void SBezierList::AllIntersectionsWith(SBezierList *sblb, SPointList *spl) { void SBezierList::AllIntersectionsWith(SBezierList *sblb, SPointList *spl) const {
SBezier *sba, *sbb; for(const SBezier *sba = l.First(); sba; sba = l.NextAfter(sba)) {
for(sba = l.First(); sba; sba = l.NextAfter(sba)) { for(const SBezier *sbb = sblb->l.First(); sbb; sbb = sblb->l.NextAfter(sbb)) {
for(sbb = sblb->l.First(); sbb; sbb = sblb->l.NextAfter(sbb)) {
sbb->AllIntersectionsWith(sba, spl); sbb->AllIntersectionsWith(sba, spl);
} }
} }
} }
void SBezier::AllIntersectionsWith(SBezier *sbb, SPointList *spl) { void SBezier::AllIntersectionsWith(const SBezier *sbb, SPointList *spl) const {
SPointList splRaw = {}; SPointList splRaw = {};
SEdgeList sea, seb; SEdgeList sea, seb;
sea = {}; sea = {};
@ -304,12 +303,11 @@ void SBezier::AllIntersectionsWith(SBezier *sbb, SPointList *spl) {
// Returns true if all the curves are coplanar, otherwise false. // Returns true if all the curves are coplanar, otherwise false.
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
bool SBezierList::GetPlaneContainingBeziers(Vector *p, Vector *u, Vector *v, bool SBezierList::GetPlaneContainingBeziers(Vector *p, Vector *u, Vector *v,
Vector *notCoplanarAt) Vector *notCoplanarAt) const
{ {
Vector pt, ptFar, ptOffLine, dp, n; Vector pt, ptFar, ptOffLine, dp, n;
double farMax, offLineMax; double farMax, offLineMax;
int i; int i;
SBezier *sb;
// Get any point on any Bezier; or an arbitrary point if list is empty. // Get any point on any Bezier; or an arbitrary point if list is empty.
if(l.n > 0) { if(l.n > 0) {
@ -321,7 +319,7 @@ bool SBezierList::GetPlaneContainingBeziers(Vector *p, Vector *u, Vector *v,
// Get the point farthest from our arbitrary point. // Get the point farthest from our arbitrary point.
farMax = VERY_NEGATIVE; farMax = VERY_NEGATIVE;
for(sb = l.First(); sb; sb = l.NextAfter(sb)) { for(const SBezier *sb = l.First(); sb; sb = l.NextAfter(sb)) {
for(i = 0; i <= sb->deg; i++) { for(i = 0; i <= sb->deg; i++) {
double m = (pt.Minus(sb->ctrl[i])).Magnitude(); double m = (pt.Minus(sb->ctrl[i])).Magnitude();
if(m > farMax) { if(m > farMax) {
@ -341,7 +339,7 @@ bool SBezierList::GetPlaneContainingBeziers(Vector *p, Vector *u, Vector *v,
// Get the point farthest from the line between pt and ptFar // Get the point farthest from the line between pt and ptFar
dp = ptFar.Minus(pt); dp = ptFar.Minus(pt);
offLineMax = VERY_NEGATIVE; offLineMax = VERY_NEGATIVE;
for(sb = l.First(); sb; sb = l.NextAfter(sb)) { for(const SBezier *sb = l.First(); sb; sb = l.NextAfter(sb)) {
for(i = 0; i <= sb->deg; i++) { for(i = 0; i <= sb->deg; i++) {
double m = (sb->ctrl[i]).DistanceToLine(pt, dp); double m = (sb->ctrl[i]).DistanceToLine(pt, dp);
if(m > offLineMax) { if(m > offLineMax) {
@ -369,7 +367,7 @@ bool SBezierList::GetPlaneContainingBeziers(Vector *p, Vector *u, Vector *v,
n = u->Cross(*v); n = u->Cross(*v);
n = n.WithMagnitude(1); n = n.WithMagnitude(1);
double d = p->Dot(n); double d = p->Dot(n);
for(sb = l.First(); sb; sb = l.NextAfter(sb)) { for(const SBezier *sb = l.First(); sb; sb = l.NextAfter(sb)) {
for(i = 0; i <= sb->deg; i++) { for(i = 0; i <= sb->deg; i++) {
if(fabs(n.Dot(sb->ctrl[i]) - d) > LENGTH_EPS) { if(fabs(n.Dot(sb->ctrl[i]) - d) > LENGTH_EPS) {
if(notCoplanarAt) *notCoplanarAt = sb->ctrl[i]; if(notCoplanarAt) *notCoplanarAt = sb->ctrl[i];
@ -454,17 +452,15 @@ void SBezierLoop::Reverse() {
} }
void SBezierLoop::GetBoundingProjd(Vector u, Vector orig, void SBezierLoop::GetBoundingProjd(Vector u, Vector orig,
double *umin, double *umax) double *umin, double *umax) const
{ {
SBezier *sb; for(const SBezier *sb = l.First(); sb; sb = l.NextAfter(sb)) {
for(sb = l.First(); sb; sb = l.NextAfter(sb)) {
sb->GetBoundingProjd(u, orig, umin, umax); sb->GetBoundingProjd(u, orig, umin, umax);
} }
} }
void SBezierLoop::MakePwlInto(SContour *sc, double chordTol) { void SBezierLoop::MakePwlInto(SContour *sc, double chordTol) const {
SBezier *sb; for(const SBezier *sb = l.First(); sb; sb = l.NextAfter(sb)) {
for(sb = l.First(); sb; sb = l.NextAfter(sb)) {
sb->MakePwlInto(sc, chordTol); sb->MakePwlInto(sc, chordTol);
// Avoid double points at join between Beziers; except that // Avoid double points at join between Beziers; except that
// first and last points should be identical. // first and last points should be identical.
@ -478,7 +474,7 @@ void SBezierLoop::MakePwlInto(SContour *sc, double chordTol) {
} }
} }
bool SBezierLoop::IsClosed() { bool SBezierLoop::IsClosed() const {
if(l.n < 1) return false; if(l.n < 1) return false;
Vector s = l.elem[0].Start(), Vector s = l.elem[0].Start(),
f = l.elem[l.n-1].Finish(); f = l.elem[l.n-1].Finish();
@ -533,10 +529,9 @@ SBezierLoopSet SBezierLoopSet::From(SBezierList *sbl, SPolygon *poly,
} }
void SBezierLoopSet::GetBoundingProjd(Vector u, Vector orig, void SBezierLoopSet::GetBoundingProjd(Vector u, Vector orig,
double *umin, double *umax) double *umin, double *umax) const
{ {
SBezierLoop *sbl; for(const SBezierLoop *sbl = l.First(); sbl; sbl = l.NextAfter(sbl)) {
for(sbl = l.First(); sbl; sbl = l.NextAfter(sbl)) {
sbl->GetBoundingProjd(u, orig, umin, umax); sbl->GetBoundingProjd(u, orig, umin, umax);
} }
} }
@ -545,9 +540,8 @@ void SBezierLoopSet::GetBoundingProjd(Vector u, Vector orig,
// Convert all the Beziers into piecewise linear form, and assemble that into // Convert all the Beziers into piecewise linear form, and assemble that into
// a polygon, one contour per loop. // a polygon, one contour per loop.
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
void SBezierLoopSet::MakePwlInto(SPolygon *sp) { void SBezierLoopSet::MakePwlInto(SPolygon *sp) const {
SBezierLoop *sbl; for(const SBezierLoop *sbl = l.First(); sbl; sbl = l.NextAfter(sbl)) {
for(sbl = l.First(); sbl; sbl = l.NextAfter(sbl)) {
sp->AddEmptyContour(); sp->AddEmptyContour();
sbl->MakePwlInto(&(sp->l.elem[sp->l.n - 1])); sbl->MakePwlInto(&(sp->l.elem[sp->l.n - 1]));
} }
@ -732,8 +726,8 @@ void SBezierLoopSetSet::Clear() {
l.Clear(); l.Clear();
} }
SCurve SCurve::FromTransformationOf(SCurve *a, SCurve SCurve::FromTransformationOf(SCurve *a, Vector t,
Vector t, Quaternion q, double scale) Quaternion q, double scale)
{ {
SCurve ret = {}; SCurve ret = {};
@ -757,7 +751,7 @@ void SCurve::Clear() {
pts.Clear(); pts.Clear();
} }
SSurface *SCurve::GetSurfaceA(SShell *a, SShell *b) { SSurface *SCurve::GetSurfaceA(SShell *a, SShell *b) const {
if(source == FROM_A) { if(source == FROM_A) {
return a->surface.FindById(surfA); return a->surface.FindById(surfA);
} else if(source == FROM_B) { } else if(source == FROM_B) {
@ -767,7 +761,7 @@ SSurface *SCurve::GetSurfaceA(SShell *a, SShell *b) {
} else ssassert(false, "Unexpected curve source"); } else ssassert(false, "Unexpected curve source");
} }
SSurface *SCurve::GetSurfaceB(SShell *a, SShell *b) { SSurface *SCurve::GetSurfaceB(SShell *a, SShell *b) const {
if(source == FROM_A) { if(source == FROM_A) {
return a->surface.FindById(surfB); return a->surface.FindById(surfB);
} else if(source == FROM_B) { } else if(source == FROM_B) {

41
src/srf/ratpoly.cpp
View File

@ -93,7 +93,7 @@ double SolveSpace::BernsteinDerivative(int k, int deg, double t)
ssassert(false, "Unexpected degree of spline"); ssassert(false, "Unexpected degree of spline");
} }
Vector SBezier::PointAt(double t) { Vector SBezier::PointAt(double t) const {
Vector pt = Vector::From(0, 0, 0); Vector pt = Vector::From(0, 0, 0);
double d = 0; double d = 0;
@ -107,7 +107,7 @@ Vector SBezier::PointAt(double t) {
return pt; return pt;
} }
Vector SBezier::TangentAt(double t) { Vector SBezier::TangentAt(double t) const {
Vector pt = Vector::From(0, 0, 0), pt_p = Vector::From(0, 0, 0); Vector pt = Vector::From(0, 0, 0), pt_p = Vector::From(0, 0, 0);
double d = 0, d_p = 0; double d = 0, d_p = 0;
@ -130,7 +130,7 @@ Vector SBezier::TangentAt(double t) {
return ret; return ret;
} }
void SBezier::ClosestPointTo(Vector p, double *t, bool converge) { void SBezier::ClosestPointTo(Vector p, double *t, bool converge) const {
int i; int i;
double minDist = VERY_POSITIVE; double minDist = VERY_POSITIVE;
*t = 0; *t = 0;
@ -162,7 +162,7 @@ void SBezier::ClosestPointTo(Vector p, double *t, bool converge) {
} }
} }
bool SBezier::PointOnThisAndCurve(SBezier *sbb, Vector *p) { bool SBezier::PointOnThisAndCurve(const SBezier *sbb, Vector *p) const {
double ta, tb; double ta, tb;
this->ClosestPointTo(*p, &ta, false); this->ClosestPointTo(*p, &ta, false);
sbb ->ClosestPointTo(*p, &tb, false); sbb ->ClosestPointTo(*p, &tb, false);
@ -187,7 +187,7 @@ bool SBezier::PointOnThisAndCurve(SBezier *sbb, Vector *p) {
return false; return false;
} }
void SBezier::SplitAt(double t, SBezier *bef, SBezier *aft) { void SBezier::SplitAt(double t, SBezier *bef, SBezier *aft) const {
Vector4 ct[4]; Vector4 ct[4];
int i; int i;
for(i = 0; i <= deg; i++) { for(i = 0; i <= deg; i++) {
@ -226,7 +226,7 @@ void SBezier::SplitAt(double t, SBezier *bef, SBezier *aft) {
} }
} }
void SBezier::MakePwlInto(SEdgeList *sel, double chordTol) { void SBezier::MakePwlInto(SEdgeList *sel, double chordTol) const {
List<Vector> lv = {}; List<Vector> lv = {};
MakePwlInto(&lv, chordTol); MakePwlInto(&lv, chordTol);
int i; int i;
@ -235,7 +235,7 @@ void SBezier::MakePwlInto(SEdgeList *sel, double chordTol) {
} }
lv.Clear(); lv.Clear();
} }
void SBezier::MakePwlInto(List<SCurvePt> *l, double chordTol) { void SBezier::MakePwlInto(List<SCurvePt> *l, double chordTol) const {
List<Vector> lv = {}; List<Vector> lv = {};
MakePwlInto(&lv, chordTol); MakePwlInto(&lv, chordTol);
int i; int i;
@ -248,7 +248,7 @@ void SBezier::MakePwlInto(List<SCurvePt> *l, double chordTol) {
} }
lv.Clear(); lv.Clear();
} }
void SBezier::MakePwlInto(SContour *sc, double chordTol) { void SBezier::MakePwlInto(SContour *sc, double chordTol) const {
List<Vector> lv = {}; List<Vector> lv = {};
MakePwlInto(&lv, chordTol); MakePwlInto(&lv, chordTol);
int i; int i;
@ -257,7 +257,7 @@ void SBezier::MakePwlInto(SContour *sc, double chordTol) {
} }
lv.Clear(); lv.Clear();
} }
void SBezier::MakePwlInto(List<Vector> *l, double chordTol) { void SBezier::MakePwlInto(List<Vector> *l, double chordTol) const {
if(EXACT(chordTol == 0)) { if(EXACT(chordTol == 0)) {
// Use the default chord tolerance. // Use the default chord tolerance.
chordTol = SS.ChordTolMm(); chordTol = SS.ChordTolMm();
@ -273,7 +273,7 @@ void SBezier::MakePwlInto(List<Vector> *l, double chordTol) {
MakePwlInitialWorker(l, 0.5, 1.0, chordTol); MakePwlInitialWorker(l, 0.5, 1.0, chordTol);
} }
} }
void SBezier::MakePwlWorker(List<Vector> *l, double ta, double tb, double chordTol) void SBezier::MakePwlWorker(List<Vector> *l, double ta, double tb, double chordTol) const
{ {
Vector pa = PointAt(ta); Vector pa = PointAt(ta);
Vector pb = PointAt(tb); Vector pb = PointAt(tb);
@ -291,7 +291,7 @@ void SBezier::MakePwlWorker(List<Vector> *l, double ta, double tb, double chordT
MakePwlWorker(l, tm, tb, chordTol); MakePwlWorker(l, tm, tb, chordTol);
} }
} }
void SBezier::MakePwlInitialWorker(List<Vector> *l, double ta, double tb, double chordTol) void SBezier::MakePwlInitialWorker(List<Vector> *l, double ta, double tb, double chordTol) const
{ {
Vector pa = PointAt(ta); Vector pa = PointAt(ta);
Vector pb = PointAt(tb); Vector pb = PointAt(tb);
@ -322,10 +322,10 @@ void SBezier::MakePwlInitialWorker(List<Vector> *l, double ta, double tb, double
} }
} }
Vector SSurface::PointAt(Point2d puv) { Vector SSurface::PointAt(Point2d puv) const {
return PointAt(puv.x, puv.y); return PointAt(puv.x, puv.y);
} }
Vector SSurface::PointAt(double u, double v) { Vector SSurface::PointAt(double u, double v) const {
Vector num = Vector::From(0, 0, 0); Vector num = Vector::From(0, 0, 0);
double den = 0; double den = 0;
@ -343,7 +343,7 @@ Vector SSurface::PointAt(double u, double v) {
return num; return num;
} }
void SSurface::TangentsAt(double u, double v, Vector *tu, Vector *tv) { void SSurface::TangentsAt(double u, double v, Vector *tu, Vector *tv) const {
Vector num = Vector::From(0, 0, 0), Vector num = Vector::From(0, 0, 0),
num_u = Vector::From(0, 0, 0), num_u = Vector::From(0, 0, 0),
num_v = Vector::From(0, 0, 0); num_v = Vector::From(0, 0, 0);
@ -377,10 +377,11 @@ void SSurface::TangentsAt(double u, double v, Vector *tu, Vector *tv) {
*tv = tv->ScaledBy(1.0/(den*den)); *tv = tv->ScaledBy(1.0/(den*den));
} }
Vector SSurface::NormalAt(Point2d puv) { Vector SSurface::NormalAt(Point2d puv) const {
return NormalAt(puv.x, puv.y); return NormalAt(puv.x, puv.y);
} }
Vector SSurface::NormalAt(double u, double v) {
Vector SSurface::NormalAt(double u, double v) const {
Vector tu, tv; Vector tu, tv;
TangentsAt(u, v, &tu, &tv); TangentsAt(u, v, &tu, &tv);
return tu.Cross(tv); return tu.Cross(tv);
@ -389,6 +390,7 @@ Vector SSurface::NormalAt(double u, double v) {
void SSurface::ClosestPointTo(Vector p, Point2d *puv, bool converge) { void SSurface::ClosestPointTo(Vector p, Point2d *puv, bool converge) {
ClosestPointTo(p, &(puv->x), &(puv->y), converge); ClosestPointTo(p, &(puv->x), &(puv->y), converge);
} }
void SSurface::ClosestPointTo(Vector p, double *u, double *v, bool converge) { void SSurface::ClosestPointTo(Vector p, double *u, double *v, bool converge) {
// A few special cases first; when control points are coincident the // A few special cases first; when control points are coincident the
// derivative goes to zero at the conrol points, and would result in // derivative goes to zero at the conrol points, and would result in
@ -455,7 +457,7 @@ void SSurface::ClosestPointTo(Vector p, double *u, double *v, bool converge) {
} }
} }
bool SSurface::ClosestPointNewton(Vector p, double *u, double *v, bool converge) bool SSurface::ClosestPointNewton(Vector p, double *u, double *v, bool converge) const
{ {
// Initial guess is in u, v; refine by Newton iteration. // Initial guess is in u, v; refine by Newton iteration.
Vector p0 = Vector::From(0, 0, 0); Vector p0 = Vector::From(0, 0, 0);
@ -488,7 +490,7 @@ bool SSurface::ClosestPointNewton(Vector p, double *u, double *v, bool converge)
return false; return false;
} }
bool SSurface::PointIntersectingLine(Vector p0, Vector p1, double *u, double *v) bool SSurface::PointIntersectingLine(Vector p0, Vector p1, double *u, double *v) const
{ {
int i; int i;
for(i = 0; i < 15; i++) { for(i = 0; i < 15; i++) {
@ -564,8 +566,7 @@ Vector SSurface::ClosestPointOnThisAndSurface(SSurface *srf2, Vector p) {
((srf[1])->PointAt(puv[1]))).ScaledBy(0.5); ((srf[1])->PointAt(puv[1]))).ScaledBy(0.5);
} }
void SSurface::PointOnSurfaces(SSurface *s1, SSurface *s2, void SSurface::PointOnSurfaces(SSurface *s1, SSurface *s2, double *up, double *vp)
double *up, double *vp)
{ {
double u[3] = { *up, 0, 0 }, v[3] = { *vp, 0, 0 }; double u[3] = { *up, 0, 0 }, v[3] = { *vp, 0, 0 };
SSurface *srf[3] = { this, s1, s2 }; SSurface *srf[3] = { this, s1, s2 };

4
src/srf/raycast.cpp
View File

@ -16,7 +16,7 @@ const double SShell::DOTP_TOL = 1e-5;
extern int FLAG; extern int FLAG;
double SSurface::DepartureFromCoplanar() { double SSurface::DepartureFromCoplanar() const {
int i, j; int i, j;
int ia, ja, ib = 0, jb = 0, ic = 0, jc = 0; int ia, ja, ib = 0, jb = 0, ic = 0, jc = 0;
double best; double best;
@ -392,7 +392,7 @@ void SShell::AllPointsIntersecting(Vector a, Vector b,
int SShell::ClassifyRegion(Vector edge_n, Vector inter_surf_n, int SShell::ClassifyRegion(Vector edge_n, Vector inter_surf_n,
Vector edge_surf_n) Vector edge_surf_n) const
{ {
double dot = inter_surf_n.DirectionCosineWith(edge_n); double dot = inter_surf_n.DirectionCosineWith(edge_n);
if(fabs(dot) < DOTP_TOL) { if(fabs(dot) < DOTP_TOL) {

23
src/srf/surface.cpp
View File

@ -24,7 +24,7 @@ SSurface SSurface::FromExtrusionOf(SBezier *sb, Vector t0, Vector t1) {
return ret; return ret;
} }
bool SSurface::IsExtrusion(SBezier *of, Vector *alongp) { bool SSurface::IsExtrusion(SBezier *of, Vector *alongp) const {
int i; int i;
if(degn != 1) return false; if(degn != 1) return false;
@ -52,7 +52,7 @@ bool SSurface::IsExtrusion(SBezier *of, Vector *alongp) {
} }
bool SSurface::IsCylinder(Vector *axis, Vector *center, double *r, bool SSurface::IsCylinder(Vector *axis, Vector *center, double *r,
Vector *start, Vector *finish) Vector *start, Vector *finish) const
{ {
SBezier sb; SBezier sb;
if(!IsExtrusion(&sb, axis)) return false; if(!IsExtrusion(&sb, axis)) return false;
@ -175,7 +175,7 @@ SSurface SSurface::FromTransformationOf(SSurface *a,
return ret; return ret;
} }
void SSurface::GetAxisAlignedBounding(Vector *ptMax, Vector *ptMin) { void SSurface::GetAxisAlignedBounding(Vector *ptMax, Vector *ptMin) const {
*ptMax = Vector::From(VERY_NEGATIVE, VERY_NEGATIVE, VERY_NEGATIVE); *ptMax = Vector::From(VERY_NEGATIVE, VERY_NEGATIVE, VERY_NEGATIVE);
*ptMin = Vector::From(VERY_POSITIVE, VERY_POSITIVE, VERY_POSITIVE); *ptMin = Vector::From(VERY_POSITIVE, VERY_POSITIVE, VERY_POSITIVE);
@ -187,7 +187,7 @@ void SSurface::GetAxisAlignedBounding(Vector *ptMax, Vector *ptMin) {
} }
} }
bool SSurface::LineEntirelyOutsideBbox(Vector a, Vector b, bool segment) { bool SSurface::LineEntirelyOutsideBbox(Vector a, Vector b, bool segment) const {
Vector amax, amin; Vector amax, amin;
GetAxisAlignedBounding(&amax, &amin); GetAxisAlignedBounding(&amax, &amin);
if(!Vector::BoundingBoxIntersectsLine(amax, amin, a, b, segment)) { if(!Vector::BoundingBoxIntersectsLine(amax, amin, a, b, segment)) {
@ -275,8 +275,7 @@ void SSurface::MakeEdgesInto(SShell *shell, SEdgeList *sel, int flags,
// by taking the cross product of the surface normals. We choose the direction // by taking the cross product of the surface normals. We choose the direction
// of this tangent so that its dot product with dir is positive. // of this tangent so that its dot product with dir is positive.
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
Vector SSurface::ExactSurfaceTangentAt(Vector p, SSurface *srfA, SSurface *srfB, Vector SSurface::ExactSurfaceTangentAt(Vector p, SSurface *srfA, SSurface *srfB, Vector dir)
Vector dir)
{ {
Point2d puva, puvb; Point2d puva, puvb;
srfA->ClosestPointTo(p, &puva); srfA->ClosestPointTo(p, &puva);
@ -295,8 +294,7 @@ Vector SSurface::ExactSurfaceTangentAt(Vector p, SSurface *srfA, SSurface *srfB,
// add its exact form to sbl. Otherwise, add its piecewise linearization to // add its exact form to sbl. Otherwise, add its piecewise linearization to
// sel. // sel.
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
void SSurface::MakeSectionEdgesInto(SShell *shell, void SSurface::MakeSectionEdgesInto(SShell *shell, SEdgeList *sel, SBezierList *sbl)
SEdgeList *sel, SBezierList *sbl)
{ {
STrimBy *stb; STrimBy *stb;
for(stb = trim.First(); stb; stb = trim.NextAfter(stb)) { for(stb = trim.First(); stb; stb = trim.NextAfter(stb)) {
@ -324,8 +322,8 @@ void SSurface::MakeSectionEdgesInto(SShell *shell,
sbl->l.Add(&keep_bef); sbl->l.Add(&keep_bef);
} else if(sbl && !sel && !sc->isExact) { } else if(sbl && !sel && !sc->isExact) {
// We must approximate this trim curve, as piecewise cubic sections. // We must approximate this trim curve, as piecewise cubic sections.
SSurface *srfA = shell->surface.FindById(sc->surfA), SSurface *srfA = shell->surface.FindById(sc->surfA);
*srfB = shell->surface.FindById(sc->surfB); SSurface *srfB = shell->surface.FindById(sc->surfB);
Vector s = stb->backwards ? stb->finish : stb->start, Vector s = stb->backwards ? stb->finish : stb->start,
f = stb->backwards ? stb->start : stb->finish; f = stb->backwards ? stb->start : stb->finish;
@ -842,8 +840,7 @@ void SShell::MakeEdgesInto(SEdgeList *sel) {
} }
} }
void SShell::MakeSectionEdgesInto(Vector n, double d, void SShell::MakeSectionEdgesInto(Vector n, double d, SEdgeList *sel, SBezierList *sbl)
SEdgeList *sel, SBezierList *sbl)
{ {
SSurface *s; SSurface *s;
for(s = surface.First(); s; s = surface.NextAfter(s)) { for(s = surface.First(); s; s = surface.NextAfter(s)) {
@ -860,7 +857,7 @@ void SShell::TriangulateInto(SMesh *sm) {
} }
} }
bool SShell::IsEmpty() { bool SShell::IsEmpty() const {
return (surface.n == 0); return (surface.n == 0);
} }

130
src/srf/surface.h
View File

@ -39,17 +39,17 @@ public:
static SBspUv *Alloc(); static SBspUv *Alloc();
static SBspUv *From(SEdgeList *el, SSurface *srf); static SBspUv *From(SEdgeList *el, SSurface *srf);
void ScalePoints(Point2d *pt, Point2d *a, Point2d *b, SSurface *srf); void ScalePoints(Point2d *pt, Point2d *a, Point2d *b, SSurface *srf) const;
double ScaledSignedDistanceToLine(Point2d pt, Point2d a, Point2d b, double ScaledSignedDistanceToLine(Point2d pt, Point2d a, Point2d b,
SSurface *srf); SSurface *srf) const;
double ScaledDistanceToLine(Point2d pt, Point2d a, Point2d b, bool seg, double ScaledDistanceToLine(Point2d pt, Point2d a, Point2d b, bool seg,
SSurface *srf); SSurface *srf) const;
void InsertEdge(Point2d a, Point2d b, SSurface *srf); void InsertEdge(Point2d a, Point2d b, SSurface *srf);
static SBspUv *InsertOrCreateEdge(SBspUv *where, const Point2d &ea, const Point2d &eb, SSurface *srf); static SBspUv *InsertOrCreateEdge(SBspUv *where, Point2d ea, Point2d eb, SSurface *srf);
int ClassifyPoint(Point2d p, Point2d eb, SSurface *srf); int ClassifyPoint(Point2d p, Point2d eb, SSurface *srf) const;
int ClassifyEdge(Point2d ea, Point2d eb, SSurface *srf); int ClassifyEdge(Point2d ea, Point2d eb, SSurface *srf) const;
double MinimumDistanceToEdge(Point2d p, SSurface *srf); double MinimumDistanceToEdge(Point2d p, SSurface *srf) const;
}; };
// Now the data structures to represent a shell of trimmed rational polynomial // Now the data structures to represent a shell of trimmed rational polynomial
@ -80,33 +80,33 @@ public:
double weight[4]; double weight[4];
uint32_t entity; uint32_t entity;
Vector PointAt(double t); Vector PointAt(double t) const;
Vector TangentAt(double t); Vector TangentAt(double t) const;
void ClosestPointTo(Vector p, double *t, bool converge=true); void ClosestPointTo(Vector p, double *t, bool converge=true) const;
void SplitAt(double t, SBezier *bef, SBezier *aft); void SplitAt(double t, SBezier *bef, SBezier *aft) const;
bool PointOnThisAndCurve(SBezier *sbb, Vector *p); bool PointOnThisAndCurve(const SBezier *sbb, Vector *p) const;
Vector Start(); Vector Start() const;
Vector Finish(); Vector Finish() const;
bool Equals(SBezier *b); bool Equals(SBezier *b) const;
void MakePwlInto(SEdgeList *sel, double chordTol=0); void MakePwlInto(SEdgeList *sel, double chordTol=0) const;
void MakePwlInto(List<SCurvePt> *l, double chordTol=0); void MakePwlInto(List<SCurvePt> *l, double chordTol=0) const;
void MakePwlInto(SContour *sc, double chordTol=0); void MakePwlInto(SContour *sc, double chordTol=0) const;
void MakePwlInto(List<Vector> *l, double chordTol=0); void MakePwlInto(List<Vector> *l, double chordTol=0) const;
void MakePwlWorker(List<Vector> *l, double ta, double tb, double chordTol); void MakePwlWorker(List<Vector> *l, double ta, double tb, double chordTol) const;
void MakePwlInitialWorker(List<Vector> *l, double ta, double tb, double chordTol); void MakePwlInitialWorker(List<Vector> *l, double ta, double tb, double chordTol) const;
void AllIntersectionsWith(SBezier *sbb, SPointList *spl); void AllIntersectionsWith(const SBezier *sbb, SPointList *spl) const;
void GetBoundingProjd(Vector u, Vector orig, double *umin, double *umax); void GetBoundingProjd(Vector u, Vector orig, double *umin, double *umax) const;
void Reverse(); void Reverse();
bool IsInPlane(Vector n, double d); bool IsInPlane(Vector n, double d) const;
bool IsCircle(Vector axis, Vector *center, double *r); bool IsCircle(Vector axis, Vector *center, double *r) const;
bool IsRational(); bool IsRational() const;
SBezier TransformedBy(Vector t, Quaternion q, double scale); SBezier TransformedBy(Vector t, Quaternion q, double scale) const;
SBezier InPerspective(Vector u, Vector v, Vector n, SBezier InPerspective(Vector u, Vector v, Vector n,
Vector origin, double cameraTan); Vector origin, double cameraTan) const;
void ScaleSelfBy(double s); void ScaleSelfBy(double s);
static SBezier From(Vector p0, Vector p1, Vector p2, Vector p3); static SBezier From(Vector p0, Vector p1, Vector p2, Vector p3);
@ -124,9 +124,9 @@ public:
void Clear(); void Clear();
void ScaleSelfBy(double s); void ScaleSelfBy(double s);
void CullIdenticalBeziers(); void CullIdenticalBeziers();
void AllIntersectionsWith(SBezierList *sblb, SPointList *spl); void AllIntersectionsWith(SBezierList *sblb, SPointList *spl) const;
bool GetPlaneContainingBeziers(Vector *p, Vector *u, Vector *v, bool GetPlaneContainingBeziers(Vector *p, Vector *u, Vector *v,
Vector *notCoplanarAt); Vector *notCoplanarAt) const;
}; };
class SBezierLoop { class SBezierLoop {
@ -135,10 +135,10 @@ public:
List<SBezier> l; List<SBezier> l;
inline void Clear() { l.Clear(); } inline void Clear() { l.Clear(); }
bool IsClosed(); bool IsClosed() const;
void Reverse(); void Reverse();
void MakePwlInto(SContour *sc, double chordTol=0); void MakePwlInto(SContour *sc, double chordTol=0) const;
void GetBoundingProjd(Vector u, Vector orig, double *umin, double *umax); void GetBoundingProjd(Vector u, Vector orig, double *umin, double *umax) const;
static SBezierLoop FromCurves(SBezierList *spcl, static SBezierLoop FromCurves(SBezierList *spcl,
bool *allClosed, SEdge *errorAt); bool *allClosed, SEdge *errorAt);
@ -155,8 +155,8 @@ public:
bool *allClosed, SEdge *errorAt, bool *allClosed, SEdge *errorAt,
SBezierList *openContours); SBezierList *openContours);
void GetBoundingProjd(Vector u, Vector orig, double *umin, double *umax); void GetBoundingProjd(Vector u, Vector orig, double *umin, double *umax) const;
void MakePwlInto(SPolygon *sp); void MakePwlInto(SPolygon *sp) const;
void Clear(); void Clear();
}; };
@ -204,13 +204,13 @@ public:
hSSurface surfA; hSSurface surfA;
hSSurface surfB; hSSurface surfB;
static SCurve FromTransformationOf(SCurve *a, Vector t, Quaternion q, static SCurve FromTransformationOf(SCurve *a, Vector t,
double scale); Quaternion q, double scale);
SCurve MakeCopySplitAgainst(SShell *agnstA, SShell *agnstB, SCurve MakeCopySplitAgainst(SShell *agnstA, SShell *agnstB,
SSurface *srfA, SSurface *srfB); SSurface *srfA, SSurface *srfB) const;
void RemoveShortSegments(SSurface *srfA, SSurface *srfB); void RemoveShortSegments(SSurface *srfA, SSurface *srfB);
SSurface *GetSurfaceA(SShell *a, SShell *b); SSurface *GetSurfaceA(SShell *a, SShell *b) const;
SSurface *GetSurfaceB(SShell *a, SShell *b); SSurface *GetSurfaceB(SShell *a, SShell *b) const;
void Clear(); void Clear();
}; };
@ -302,7 +302,7 @@ public:
void CopyRowOrCol(bool row, int this_ij, SSurface *src, int src_ij); void CopyRowOrCol(bool row, int this_ij, SSurface *src, int src_ij);
void BlendRowOrCol(bool row, int this_ij, SSurface *a, int a_ij, void BlendRowOrCol(bool row, int this_ij, SSurface *a, int a_ij,
SSurface *b, int b_ij); SSurface *b, int b_ij);
double DepartureFromCoplanar(); double DepartureFromCoplanar() const;
void SplitInHalf(bool byU, SSurface *sa, SSurface *sb); void SplitInHalf(bool byU, SSurface *sa, SSurface *sb);
void AllPointsIntersecting(Vector a, Vector b, void AllPointsIntersecting(Vector a, Vector b,
List<SInter> *l, List<SInter> *l,
@ -314,23 +314,23 @@ public:
void ClosestPointTo(Vector p, Point2d *puv, bool converge=true); void ClosestPointTo(Vector p, Point2d *puv, bool converge=true);
void ClosestPointTo(Vector p, double *u, double *v, bool converge=true); void ClosestPointTo(Vector p, double *u, double *v, bool converge=true);
bool ClosestPointNewton(Vector p, double *u, double *v, bool converge=true); bool ClosestPointNewton(Vector p, double *u, double *v, bool converge=true) const;
bool PointIntersectingLine(Vector p0, Vector p1, double *u, double *v); bool PointIntersectingLine(Vector p0, Vector p1, double *u, double *v) const;
Vector ClosestPointOnThisAndSurface(SSurface *srf2, Vector p); Vector ClosestPointOnThisAndSurface(SSurface *srf2, Vector p);
void PointOnSurfaces(SSurface *s1, SSurface *s2, double *u, double *v); void PointOnSurfaces(SSurface *s1, SSurface *s2, double *u, double *v);
Vector PointAt(double u, double v); Vector PointAt(double u, double v) const;
Vector PointAt(Point2d puv); Vector PointAt(Point2d puv) const;
void TangentsAt(double u, double v, Vector *tu, Vector *tv); void TangentsAt(double u, double v, Vector *tu, Vector *tv) const;
Vector NormalAt(Point2d puv); Vector NormalAt(Point2d puv) const;
Vector NormalAt(double u, double v); Vector NormalAt(double u, double v) const;
bool LineEntirelyOutsideBbox(Vector a, Vector b, bool segment); bool LineEntirelyOutsideBbox(Vector a, Vector b, bool segment) const;
void GetAxisAlignedBounding(Vector *ptMax, Vector *ptMin); void GetAxisAlignedBounding(Vector *ptMax, Vector *ptMin) const;
bool CoincidentWithPlane(Vector n, double d); bool CoincidentWithPlane(Vector n, double d) const;
bool CoincidentWith(SSurface *ss, bool sameNormal); bool CoincidentWith(SSurface *ss, bool sameNormal) const;
bool IsExtrusion(SBezier *of, Vector *along); bool IsExtrusion(SBezier *of, Vector *along) const;
bool IsCylinder(Vector *axis, Vector *center, double *r, bool IsCylinder(Vector *axis, Vector *center, double *r,
Vector *start, Vector *finish); Vector *start, Vector *finish) const;
void TriangulateInto(SShell *shell, SMesh *sm); void TriangulateInto(SShell *shell, SMesh *sm);
@ -347,10 +347,10 @@ public:
Vector dir); Vector dir);
void MakeSectionEdgesInto(SShell *shell, SEdgeList *sel, SBezierList *sbl); void MakeSectionEdgesInto(SShell *shell, SEdgeList *sel, SBezierList *sbl);
void MakeClassifyingBsp(SShell *shell, SShell *useCurvesFrom); void MakeClassifyingBsp(SShell *shell, SShell *useCurvesFrom);
double ChordToleranceForEdge(Vector a, Vector b); double ChordToleranceForEdge(Vector a, Vector b) const;
void MakeTriangulationGridInto(List<double> *l, double vs, double vf, void MakeTriangulationGridInto(List<double> *l, double vs, double vf,
bool swapped); bool swapped) const;
Vector PointAtMaybeSwapped(double u, double v, bool swapped); Vector PointAtMaybeSwapped(double u, double v, bool swapped) const;
void Reverse(); void Reverse();
void Clear(); void Clear();
@ -377,8 +377,7 @@ public:
}; };
void MakeFromBoolean(SShell *a, SShell *b, int type); void MakeFromBoolean(SShell *a, SShell *b, int type);
void CopyCurvesSplitAgainst(bool opA, SShell *agnst, SShell *into); void CopyCurvesSplitAgainst(bool opA, SShell *agnst, SShell *into);
void CopySurfacesTrimAgainst(SShell *sha, SShell *shb, SShell *into, void CopySurfacesTrimAgainst(SShell *sha, SShell *shb, SShell *into, int type);
int type);
void MakeIntersectionCurvesAgainst(SShell *against, SShell *into); void MakeIntersectionCurvesAgainst(SShell *against, SShell *into);
void MakeClassifyingBsps(SShell *useCurvesFrom); void MakeClassifyingBsps(SShell *useCurvesFrom);
void AllPointsIntersecting(Vector a, Vector b, List<SInter> *il, void AllPointsIntersecting(Vector a, Vector b, List<SInter> *il,
@ -398,11 +397,13 @@ public:
COINC_OPP = 400 COINC_OPP = 400
}; };
static const double DOTP_TOL; static const double DOTP_TOL;
int ClassifyRegion(Vector edge_n, Vector inter_surf_n, Vector edge_surf_n); int ClassifyRegion(Vector edge_n, Vector inter_surf_n,
Vector edge_surf_n) const;
bool ClassifyEdge(int *indir, int *outdir, bool ClassifyEdge(int *indir, int *outdir,
Vector ea, Vector eb, Vector ea, Vector eb,
Vector p, Vector p, Vector edge_n_in,
Vector edge_n_in, Vector edge_n_out, Vector surf_n); Vector edge_n_out, Vector surf_n);
void MakeFromCopyOf(SShell *a); void MakeFromCopyOf(SShell *a);
void MakeFromTransformationOf(SShell *a, void MakeFromTransformationOf(SShell *a,
@ -412,9 +413,8 @@ public:
void TriangulateInto(SMesh *sm); void TriangulateInto(SMesh *sm);
void MakeEdgesInto(SEdgeList *sel); void MakeEdgesInto(SEdgeList *sel);
void MakeSectionEdgesInto(Vector n, double d, void MakeSectionEdgesInto(Vector n, double d, SEdgeList *sel, SBezierList *sbl);
SEdgeList *sel, SBezierList *sbl); bool IsEmpty() const;
bool IsEmpty();
void RemapFaces(Group *g, int remap); void RemapFaces(Group *g, int remap);
void Clear(); void Clear();
}; };

4
src/srf/surfinter.cpp
View File

@ -460,7 +460,7 @@ void SSurface::IntersectAgainst(SSurface *b, SShell *agnstA, SShell *agnstB,
// Are two surfaces coincident, with the same (or with opposite) normals? // Are two surfaces coincident, with the same (or with opposite) normals?
// Currently handles planes only. // Currently handles planes only.
//----------------------------------------------------------------------------- //-----------------------------------------------------------------------------
bool SSurface::CoincidentWith(SSurface *ss, bool sameNormal) { bool SSurface::CoincidentWith(SSurface *ss, bool sameNormal) const {
if(degm != 1 || degn != 1) return false; if(degm != 1 || degn != 1) return false;
if(ss->degm != 1 || ss->degn != 1) return false; if(ss->degm != 1 || ss->degn != 1) return false;
@ -480,7 +480,7 @@ bool SSurface::CoincidentWith(SSurface *ss, bool sameNormal) {
return true; return true;
} }
bool SSurface::CoincidentWithPlane(Vector n, double d) { bool SSurface::CoincidentWithPlane(Vector n, double d) const {
if(degm != 1 || degn != 1) return false; if(degm != 1 || degn != 1) return false;
if(fabs(n.Dot(ctrl[0][0]) - d) > LENGTH_EPS) return false; if(fabs(n.Dot(ctrl[0][0]) - d) > LENGTH_EPS) return false;
if(fabs(n.Dot(ctrl[0][1]) - d) > LENGTH_EPS) return false; if(fabs(n.Dot(ctrl[0][1]) - d) > LENGTH_EPS) return false;

8
src/srf/triangulate.cpp
View File

@ -213,7 +213,7 @@ haveEdge:
return true; return true;
} }
bool SContour::IsEar(int bp, double scaledEps) { bool SContour::IsEar(int bp, double scaledEps) const {
int ap = WRAP(bp-1, l.n), int ap = WRAP(bp-1, l.n),
cp = WRAP(bp+1, l.n); cp = WRAP(bp+1, l.n);
@ -359,7 +359,7 @@ void SContour::UvTriangulateInto(SMesh *m, SSurface *srf) {
ClipEarInto(m, 0, scaledEps); // add the last triangle ClipEarInto(m, 0, scaledEps); // add the last triangle
} }
double SSurface::ChordToleranceForEdge(Vector a, Vector b) { double SSurface::ChordToleranceForEdge(Vector a, Vector b) const {
Vector as = PointAt(a.x, a.y), bs = PointAt(b.x, b.y); Vector as = PointAt(a.x, a.y), bs = PointAt(b.x, b.y);
double worst = VERY_NEGATIVE; double worst = VERY_NEGATIVE;
@ -374,7 +374,7 @@ double SSurface::ChordToleranceForEdge(Vector a, Vector b) {
return sqrt(worst); return sqrt(worst);
} }
Vector SSurface::PointAtMaybeSwapped(double u, double v, bool swapped) { Vector SSurface::PointAtMaybeSwapped(double u, double v, bool swapped) const {
if(swapped) { if(swapped) {
return PointAt(v, u); return PointAt(v, u);
} else { } else {
@ -383,7 +383,7 @@ Vector SSurface::PointAtMaybeSwapped(double u, double v, bool swapped) {
} }
void SSurface::MakeTriangulationGridInto(List<double> *l, double vs, double vf, void SSurface::MakeTriangulationGridInto(List<double> *l, double vs, double vf,
bool swapped) bool swapped) const
{ {
double worst = 0; double worst = 0;

2
src/style.cpp
View File

@ -337,7 +337,7 @@ double Style::StippleScaleMm(hStyle hs) {
return 1.0; return 1.0;
} }
std::string Style::DescriptionString() { std::string Style::DescriptionString() const {
if(name.empty()) { if(name.empty()) {
return ssprintf("s%03x-(unnamed)", h.v); return ssprintf("s%03x-(unnamed)", h.v);
} else { } else {

106
src/util.cpp
View File

@ -279,7 +279,7 @@ Quaternion Quaternion::From(Vector u, Vector v)
return q.WithMagnitude(1); return q.WithMagnitude(1);
} }
Quaternion Quaternion::Plus(Quaternion b) { Quaternion Quaternion::Plus(Quaternion b) const {
Quaternion q; Quaternion q;
q.w = w + b.w; q.w = w + b.w;
q.vx = vx + b.vx; q.vx = vx + b.vx;
@ -288,7 +288,7 @@ Quaternion Quaternion::Plus(Quaternion b) {
return q; return q;
} }
Quaternion Quaternion::Minus(Quaternion b) { Quaternion Quaternion::Minus(Quaternion b) const {
Quaternion q; Quaternion q;
q.w = w - b.w; q.w = w - b.w;
q.vx = vx - b.vx; q.vx = vx - b.vx;
@ -297,7 +297,7 @@ Quaternion Quaternion::Minus(Quaternion b) {
return q; return q;
} }
Quaternion Quaternion::ScaledBy(double s) { Quaternion Quaternion::ScaledBy(double s) const {
Quaternion q; Quaternion q;
q.w = w*s; q.w = w*s;
q.vx = vx*s; q.vx = vx*s;
@ -306,15 +306,15 @@ Quaternion Quaternion::ScaledBy(double s) {
return q; return q;
} }
double Quaternion::Magnitude() { double Quaternion::Magnitude() const {
return sqrt(w*w + vx*vx + vy*vy + vz*vz); return sqrt(w*w + vx*vx + vy*vy + vz*vz);
} }
Quaternion Quaternion::WithMagnitude(double s) { Quaternion Quaternion::WithMagnitude(double s) const {
return ScaledBy(s/Magnitude()); return ScaledBy(s/Magnitude());
} }
Vector Quaternion::RotationU() { Vector Quaternion::RotationU() const {
Vector v; Vector v;
v.x = w*w + vx*vx - vy*vy - vz*vz; v.x = w*w + vx*vx - vy*vy - vz*vz;
v.y = 2*w *vz + 2*vx*vy; v.y = 2*w *vz + 2*vx*vy;
@ -322,7 +322,7 @@ Vector Quaternion::RotationU() {
return v; return v;
} }
Vector Quaternion::RotationV() { Vector Quaternion::RotationV() const {
Vector v; Vector v;
v.x = 2*vx*vy - 2*w*vz; v.x = 2*vx*vy - 2*w*vz;
v.y = w*w - vx*vx + vy*vy - vz*vz; v.y = w*w - vx*vx + vy*vy - vz*vz;
@ -330,7 +330,7 @@ Vector Quaternion::RotationV() {
return v; return v;
} }
Vector Quaternion::RotationN() { Vector Quaternion::RotationN() const {
Vector v; Vector v;
v.x = 2*w*vy + 2*vx*vz; v.x = 2*w*vy + 2*vx*vz;
v.y = 2*vy*vz - 2*w*vx; v.y = 2*vy*vz - 2*w*vx;
@ -338,14 +338,14 @@ Vector Quaternion::RotationN() {
return v; return v;
} }
Vector Quaternion::Rotate(Vector p) { Vector Quaternion::Rotate(Vector p) const {
// Express the point in the new basis // Express the point in the new basis
return (RotationU().ScaledBy(p.x)).Plus( return (RotationU().ScaledBy(p.x)).Plus(
RotationV().ScaledBy(p.y)).Plus( RotationV().ScaledBy(p.y)).Plus(
RotationN().ScaledBy(p.z)); RotationN().ScaledBy(p.z));
} }
Quaternion Quaternion::Inverse() { Quaternion Quaternion::Inverse() const {
Quaternion r; Quaternion r;
r.w = w; r.w = w;
r.vx = -vx; r.vx = -vx;
@ -354,7 +354,7 @@ Quaternion Quaternion::Inverse() {
return r.WithMagnitude(1); // not that the normalize should be reqd return r.WithMagnitude(1); // not that the normalize should be reqd
} }
Quaternion Quaternion::ToThe(double p) { Quaternion Quaternion::ToThe(double p) const {
// Avoid division by zero, or arccos of something not in its domain // Avoid division by zero, or arccos of something not in its domain
if(w >= (1 - 1e-6)) { if(w >= (1 - 1e-6)) {
return From(1, 0, 0, 0); return From(1, 0, 0, 0);
@ -374,7 +374,7 @@ Quaternion Quaternion::ToThe(double p) {
return r; return r;
} }
Quaternion Quaternion::Times(Quaternion b) { Quaternion Quaternion::Times(Quaternion b) const {
double sa = w, sb = b.w; double sa = w, sb = b.w;
Vector va = { vx, vy, vz }; Vector va = { vx, vy, vz };
Vector vb = { b.vx, b.vy, b.vz }; Vector vb = { b.vx, b.vy, b.vz };
@ -390,7 +390,7 @@ Quaternion Quaternion::Times(Quaternion b) {
return r; return r;
} }
Quaternion Quaternion::Mirror() { Quaternion Quaternion::Mirror() const {
Vector u = RotationU(), Vector u = RotationU(),
v = RotationV(); v = RotationV();
u = u.ScaledBy(-1); u = u.ScaledBy(-1);
@ -413,7 +413,7 @@ Vector Vector::From(hParam x, hParam y, hParam z) {
return v; return v;
} }
double Vector::Element(int i) { double Vector::Element(int i) const {
switch(i) { switch(i) {
case 0: return x; case 0: return x;
case 1: return y; case 1: return y;
@ -422,7 +422,7 @@ double Vector::Element(int i) {
} }
} }
bool Vector::Equals(Vector v, double tol) { bool Vector::Equals(Vector v, double tol) const {
// Quick axis-aligned tests before going further // Quick axis-aligned tests before going further
double dx = v.x - x; if(dx < -tol || dx > tol) return false; double dx = v.x - x; if(dx < -tol || dx > tol) return false;
double dy = v.y - y; if(dy < -tol || dy > tol) return false; double dy = v.y - y; if(dy < -tol || dy > tol) return false;
@ -431,13 +431,13 @@ bool Vector::Equals(Vector v, double tol) {
return (this->Minus(v)).MagSquared() < tol*tol; return (this->Minus(v)).MagSquared() < tol*tol;
} }
bool Vector::EqualsExactly(Vector v) { bool Vector::EqualsExactly(Vector v) const {
return EXACT(x == v.x && return EXACT(x == v.x &&
y == v.y && y == v.y &&
z == v.z); z == v.z);
} }
Vector Vector::Plus(Vector b) { Vector Vector::Plus(Vector b) const {
Vector r; Vector r;
r.x = x + b.x; r.x = x + b.x;
@ -447,7 +447,7 @@ Vector Vector::Plus(Vector b) {
return r; return r;
} }
Vector Vector::Minus(Vector b) { Vector Vector::Minus(Vector b) const {
Vector r; Vector r;
r.x = x - b.x; r.x = x - b.x;
@ -457,7 +457,7 @@ Vector Vector::Minus(Vector b) {
return r; return r;
} }
Vector Vector::Negated() { Vector Vector::Negated() const {
Vector r; Vector r;
r.x = -x; r.x = -x;
@ -467,7 +467,7 @@ Vector Vector::Negated() {
return r; return r;
} }
Vector Vector::Cross(Vector b) { Vector Vector::Cross(Vector b) const {
Vector r; Vector r;
r.x = -(z*b.y) + (y*b.z); r.x = -(z*b.y) + (y*b.z);
@ -477,17 +477,17 @@ Vector Vector::Cross(Vector b) {
return r; return r;
} }
double Vector::Dot(Vector b) { double Vector::Dot(Vector b) const {
return (x*b.x + y*b.y + z*b.z); return (x*b.x + y*b.y + z*b.z);
} }
double Vector::DirectionCosineWith(Vector b) { double Vector::DirectionCosineWith(Vector b) const {
Vector a = this->WithMagnitude(1); Vector a = this->WithMagnitude(1);
b = b.WithMagnitude(1); b = b.WithMagnitude(1);
return a.Dot(b); return a.Dot(b);
} }
Vector Vector::Normal(int which) { Vector Vector::Normal(int which) const {
Vector n; Vector n;
// Arbitrarily choose one vector that's normal to us, pivoting // Arbitrarily choose one vector that's normal to us, pivoting
@ -521,13 +521,13 @@ Vector Vector::Normal(int which) {
return n; return n;
} }
Vector Vector::RotatedAbout(Vector orig, Vector axis, double theta) { Vector Vector::RotatedAbout(Vector orig, Vector axis, double theta) const {
Vector r = this->Minus(orig); Vector r = this->Minus(orig);
r = r.RotatedAbout(axis, theta); r = r.RotatedAbout(axis, theta);
return r.Plus(orig); return r.Plus(orig);
} }
Vector Vector::RotatedAbout(Vector axis, double theta) { Vector Vector::RotatedAbout(Vector axis, double theta) const {
double c = cos(theta); double c = cos(theta);
double s = sin(theta); double s = sin(theta);
@ -550,7 +550,7 @@ Vector Vector::RotatedAbout(Vector axis, double theta) {
return r; return r;
} }
Vector Vector::DotInToCsys(Vector u, Vector v, Vector n) { Vector Vector::DotInToCsys(Vector u, Vector v, Vector n) const {
Vector r = { Vector r = {
this->Dot(u), this->Dot(u),
this->Dot(v), this->Dot(v),
@ -559,7 +559,7 @@ Vector Vector::DotInToCsys(Vector u, Vector v, Vector n) {
return r; return r;
} }
Vector Vector::ScaleOutOfCsys(Vector u, Vector v, Vector n) { Vector Vector::ScaleOutOfCsys(Vector u, Vector v, Vector n) const {
Vector r = u.ScaledBy(x).Plus( Vector r = u.ScaledBy(x).Plus(
v.ScaledBy(y).Plus( v.ScaledBy(y).Plus(
n.ScaledBy(z))); n.ScaledBy(z)));
@ -567,7 +567,7 @@ Vector Vector::ScaleOutOfCsys(Vector u, Vector v, Vector n) {
} }
Vector Vector::InPerspective(Vector u, Vector v, Vector n, Vector Vector::InPerspective(Vector u, Vector v, Vector n,
Vector origin, double cameraTan) Vector origin, double cameraTan) const
{ {
Vector r = this->Minus(origin); Vector r = this->Minus(origin);
r = r.DotInToCsys(u, v, n); r = r.DotInToCsys(u, v, n);
@ -579,12 +579,12 @@ Vector Vector::InPerspective(Vector u, Vector v, Vector n,
return r; return r;
} }
double Vector::DistanceToLine(Vector p0, Vector dp) { double Vector::DistanceToLine(Vector p0, Vector dp) const {
double m = dp.Magnitude(); double m = dp.Magnitude();
return ((this->Minus(p0)).Cross(dp)).Magnitude() / m; return ((this->Minus(p0)).Cross(dp)).Magnitude() / m;
} }
bool Vector::OnLineSegment(Vector a, Vector b, double tol) { bool Vector::OnLineSegment(Vector a, Vector b, double tol) const {
if(this->Equals(a, tol) || this->Equals(b, tol)) return true; if(this->Equals(a, tol) || this->Equals(b, tol)) return true;
Vector d = b.Minus(a); Vector d = b.Minus(a);
@ -600,7 +600,7 @@ bool Vector::OnLineSegment(Vector a, Vector b, double tol) {
return true; return true;
} }
Vector Vector::ClosestPointOnLine(Vector p0, Vector dp) { Vector Vector::ClosestPointOnLine(Vector p0, Vector dp) const {
dp = dp.WithMagnitude(1); dp = dp.WithMagnitude(1);
// this, p0, and (p0+dp) define a plane; the min distance is in // this, p0, and (p0+dp) define a plane; the min distance is in
// that plane, so calculate its normal // that plane, so calculate its normal
@ -614,15 +614,15 @@ Vector Vector::ClosestPointOnLine(Vector p0, Vector dp) {
return this->Plus(n.WithMagnitude(d)); return this->Plus(n.WithMagnitude(d));
} }
double Vector::MagSquared() { double Vector::MagSquared() const {
return x*x + y*y + z*z; return x*x + y*y + z*z;
} }
double Vector::Magnitude() { double Vector::Magnitude() const {
return sqrt(x*x + y*y + z*z); return sqrt(x*x + y*y + z*z);
} }
Vector Vector::ScaledBy(double v) { Vector Vector::ScaledBy(double v) const {
Vector r; Vector r;
r.x = x * v; r.x = x * v;
@ -632,7 +632,7 @@ Vector Vector::ScaledBy(double v) {
return r; return r;
} }
Vector Vector::WithMagnitude(double v) { Vector Vector::WithMagnitude(double v) const {
double m = Magnitude(); double m = Magnitude();
if(EXACT(m == 0)) { if(EXACT(m == 0)) {
// We can do a zero vector with zero magnitude, but not any other cases. // We can do a zero vector with zero magnitude, but not any other cases.
@ -645,7 +645,7 @@ Vector Vector::WithMagnitude(double v) {
} }
} }
Vector Vector::ProjectVectorInto(hEntity wrkpl) { Vector Vector::ProjectVectorInto(hEntity wrkpl) const {
EntityBase *w = SK.GetEntity(wrkpl); EntityBase *w = SK.GetEntity(wrkpl);
Vector u = w->Normal()->NormalU(); Vector u = w->Normal()->NormalU();
Vector v = w->Normal()->NormalV(); Vector v = w->Normal()->NormalV();
@ -656,7 +656,7 @@ Vector Vector::ProjectVectorInto(hEntity wrkpl) {
return (u.ScaledBy(up)).Plus(v.ScaledBy(vp)); return (u.ScaledBy(up)).Plus(v.ScaledBy(vp));
} }
Vector Vector::ProjectInto(hEntity wrkpl) { Vector Vector::ProjectInto(hEntity wrkpl) const {
EntityBase *w = SK.GetEntity(wrkpl); EntityBase *w = SK.GetEntity(wrkpl);
Vector p0 = w->WorkplaneGetOffset(); Vector p0 = w->WorkplaneGetOffset();
@ -665,25 +665,25 @@ Vector Vector::ProjectInto(hEntity wrkpl) {
return p0.Plus(f.ProjectVectorInto(wrkpl)); return p0.Plus(f.ProjectVectorInto(wrkpl));
} }
Point2d Vector::Project2d(Vector u, Vector v) { Point2d Vector::Project2d(Vector u, Vector v) const {
Point2d p; Point2d p;
p.x = this->Dot(u); p.x = this->Dot(u);
p.y = this->Dot(v); p.y = this->Dot(v);
return p; return p;
} }
Point2d Vector::ProjectXy() { Point2d Vector::ProjectXy() const {
Point2d p; Point2d p;
p.x = x; p.x = x;
p.y = y; p.y = y;
return p; return p;
} }
Vector4 Vector::Project4d() { Vector4 Vector::Project4d() const {
return Vector4::From(1, x, y, z); return Vector4::From(1, x, y, z);
} }
double Vector::DivPivoting(Vector delta) { double Vector::DivPivoting(Vector delta) const {
double mx = fabs(delta.x), my = fabs(delta.y), mz = fabs(delta.z); double mx = fabs(delta.x), my = fabs(delta.y), mz = fabs(delta.z);
if(mx > my && mx > mz) { if(mx > my && mx > mz) {
@ -695,7 +695,7 @@ double Vector::DivPivoting(Vector delta) {
} }
} }
Vector Vector::ClosestOrtho() { Vector Vector::ClosestOrtho() const {
double mx = fabs(x), my = fabs(y), mz = fabs(z); double mx = fabs(x), my = fabs(y), mz = fabs(z);
if(mx > my && mx > mz) { if(mx > my && mx > mz) {
@ -707,7 +707,7 @@ Vector Vector::ClosestOrtho() {
} }
} }
Vector Vector::ClampWithin(double minv, double maxv) { Vector Vector::ClampWithin(double minv, double maxv) const {
Vector ret = *this; Vector ret = *this;
if(ret.x < minv) ret.x = minv; if(ret.x < minv) ret.x = minv;
@ -721,7 +721,7 @@ Vector Vector::ClampWithin(double minv, double maxv) {
return ret; return ret;
} }
void Vector::MakeMaxMin(Vector *maxv, Vector *minv) { void Vector::MakeMaxMin(Vector *maxv, Vector *minv) const {
maxv->x = max(maxv->x, x); maxv->x = max(maxv->x, x);
maxv->y = max(maxv->y, y); maxv->y = max(maxv->y, y);
maxv->z = max(maxv->z, z); maxv->z = max(maxv->z, z);
@ -731,7 +731,7 @@ void Vector::MakeMaxMin(Vector *maxv, Vector *minv) {
minv->z = min(minv->z, z); minv->z = min(minv->z, z);
} }
bool Vector::OutsideAndNotOn(Vector maxv, Vector minv) { bool Vector::OutsideAndNotOn(Vector maxv, Vector minv) const {
return (x > maxv.x + LENGTH_EPS) || (x < minv.x - LENGTH_EPS) || return (x > maxv.x + LENGTH_EPS) || (x < minv.x - LENGTH_EPS) ||
(y > maxv.y + LENGTH_EPS) || (y < minv.y - LENGTH_EPS) || (y > maxv.y + LENGTH_EPS) || (y < minv.y - LENGTH_EPS) ||
(z > maxv.z + LENGTH_EPS) || (z < minv.z - LENGTH_EPS); (z > maxv.z + LENGTH_EPS) || (z < minv.z - LENGTH_EPS);
@ -918,19 +918,19 @@ Vector4 Vector4::Blend(Vector4 a, Vector4 b, double t) {
return (a.ScaledBy(1 - t)).Plus(b.ScaledBy(t)); return (a.ScaledBy(1 - t)).Plus(b.ScaledBy(t));
} }
Vector4 Vector4::Plus(Vector4 b) { Vector4 Vector4::Plus(Vector4 b) const {
return Vector4::From(w + b.w, x + b.x, y + b.y, z + b.z); return Vector4::From(w + b.w, x + b.x, y + b.y, z + b.z);
} }
Vector4 Vector4::Minus(Vector4 b) { Vector4 Vector4::Minus(Vector4 b) const {
return Vector4::From(w - b.w, x - b.x, y - b.y, z - b.z); return Vector4::From(w - b.w, x - b.x, y - b.y, z - b.z);
} }
Vector4 Vector4::ScaledBy(double s) { Vector4 Vector4::ScaledBy(double s) const {
return Vector4::From(w*s, x*s, y*s, z*s); return Vector4::From(w*s, x*s, y*s, z*s);
} }
Vector Vector4::PerspectiveProject() { Vector Vector4::PerspectiveProject() const {
return Vector::From(x / w, y / w, z / w); return Vector::From(x / w, y / w, z / w);
} }
@ -1036,8 +1036,8 @@ BBox BBox::From(const Vector &p0, const Vector &p1) {
return bbox; return bbox;
} }
Vector BBox::GetOrigin() { return minp.Plus(maxp.Minus(minp)).ScaledBy(0.5); } Vector BBox::GetOrigin() const { return minp.Plus(maxp.Minus(minp)).ScaledBy(0.5); }
Vector BBox::GetExtents() { return maxp.Minus(minp).ScaledBy(0.5); } Vector BBox::GetExtents() const { return maxp.Minus(minp).ScaledBy(0.5); }
void BBox::Include(const Vector &v, double r) { void BBox::Include(const Vector &v, double r) {
minp.x = min(minp.x, v.x - r); minp.x = min(minp.x, v.x - r);
@ -1049,7 +1049,7 @@ void BBox::Include(const Vector &v, double r) {
maxp.z = max(maxp.z, v.z + r); maxp.z = max(maxp.z, v.z + r);
} }
bool BBox::Overlaps(BBox &b1) { bool BBox::Overlaps(const BBox &b1) const {
Vector t = b1.GetOrigin().Minus(GetOrigin()); Vector t = b1.GetOrigin().Minus(GetOrigin());
Vector e = b1.GetExtents().Plus(GetExtents()); Vector e = b1.GetExtents().Plus(GetExtents());
@ -1057,6 +1057,6 @@ bool BBox::Overlaps(BBox &b1) {
return fabs(t.x) < e.x && fabs(t.y) < e.y && fabs(t.z) < e.z; return fabs(t.x) < e.x && fabs(t.y) < e.y && fabs(t.z) < e.z;
} }
bool BBox::Contains(const Point2d &p) { bool BBox::Contains(const Point2d &p) const {
return p.x >= minp.x && p.y >= minp.y && p.x <= maxp.x && p.y <= maxp.y; return p.x >= minp.x && p.y >= minp.y && p.x <= maxp.x && p.y <= maxp.y;
} }