663 lines
20 KiB
C++
663 lines
20 KiB
C++
#include "solvespace.h"
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const hEntity Entity::FREE_IN_3D = { 0 };
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const hEntity Entity::NO_ENTITY = { 0 };
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const hParam Param::NO_PARAM = { 0 };
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#define NO_PARAM (Param::NO_PARAM)
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const hGroup Group::HGROUP_REFERENCES = { 1 };
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const hRequest Request::HREQUEST_REFERENCE_XY = { 1 };
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const hRequest Request::HREQUEST_REFERENCE_YZ = { 2 };
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const hRequest Request::HREQUEST_REFERENCE_ZX = { 3 };
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void Group::AddParam(IdList<Param,hParam> *param, hParam hp, double v) {
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Param pa;
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memset(&pa, 0, sizeof(pa));
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pa.h = hp;
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pa.val = v;
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param->Add(&pa);
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}
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void Group::MenuGroup(int id) {
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Group g;
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memset(&g, 0, sizeof(g));
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g.visible = true;
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SS.GW.GroupSelection();
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#define gs (SS.GW.gs)
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switch(id) {
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case GraphicsWindow::MNU_GROUP_3D:
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g.type = DRAWING_3D;
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g.name.strcpy("draw-in-3d");
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break;
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case GraphicsWindow::MNU_GROUP_WRKPL:
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g.type = DRAWING_WORKPLANE;
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g.name.strcpy("draw-in-plane");
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if(gs.points == 1 && gs.n == 1) {
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g.subtype = WORKPLANE_BY_POINT_ORTHO;
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Vector u = SS.GW.projRight, v = SS.GW.projUp;
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u = u.ClosestOrtho();
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v = v.Minus(u.ScaledBy(v.Dot(u)));
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v = v.ClosestOrtho();
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g.wrkpl.q = Quaternion::MakeFrom(u, v);
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g.wrkpl.origin = gs.point[0];
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} else if(gs.points == 1 && gs.lineSegments == 2 && gs.n == 3) {
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g.subtype = WORKPLANE_BY_LINE_SEGMENTS;
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g.wrkpl.origin = gs.point[0];
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g.wrkpl.entityB = gs.entity[0];
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g.wrkpl.entityC = gs.entity[1];
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Vector ut = SS.GetEntity(g.wrkpl.entityB)->VectorGetNum();
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Vector vt = SS.GetEntity(g.wrkpl.entityC)->VectorGetNum();
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ut = ut.WithMagnitude(1);
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vt = vt.WithMagnitude(1);
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if(fabs(SS.GW.projUp.Dot(vt)) < fabs(SS.GW.projUp.Dot(ut))) {
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SWAP(Vector, ut, vt);
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g.wrkpl.swapUV = true;
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}
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if(SS.GW.projRight.Dot(ut) < 0) g.wrkpl.negateU = true;
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if(SS.GW.projUp. Dot(vt) < 0) g.wrkpl.negateV = true;
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} else {
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Error("Bad selection for new drawing in workplane.");
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return;
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}
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SS.GW.ClearSelection();
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break;
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case GraphicsWindow::MNU_GROUP_EXTRUDE:
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g.type = EXTRUDE;
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g.opA = SS.GW.activeGroup;
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g.wrkpl.entityB = SS.GW.activeWorkplane;
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g.subtype = EXTRUDE_ONE_SIDED;
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g.name.strcpy("extrude");
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break;
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case GraphicsWindow::MNU_GROUP_ROT:
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g.type = ROTATE;
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g.opA = SS.GW.activeGroup;
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g.name.strcpy("rotate");
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break;
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default: oops();
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}
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SS.group.AddAndAssignId(&g);
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SS.GenerateAll(SS.GW.solving == GraphicsWindow::SOLVE_ALWAYS);
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SS.GW.activeGroup = g.h;
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if(g.type == DRAWING_WORKPLANE) {
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SS.GW.activeWorkplane = g.h.entity(0);
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Entity *e = SS.GetEntity(SS.GW.activeWorkplane);
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Quaternion quatf = e->Normal()->NormalGetNum();
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Vector offsetf = (e->WorkplaneGetOffset()).ScaledBy(-1);
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SS.GW.AnimateOnto(quatf, offsetf);
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}
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SS.TW.Show();
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}
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char *Group::DescriptionString(void) {
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static char ret[100];
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if(name.str[0]) {
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sprintf(ret, "g%03x-%s", h.v, name.str);
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} else {
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sprintf(ret, "g%03x-(unnamed)", h.v);
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}
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return ret;
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}
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void Group::Generate(IdList<Entity,hEntity> *entity,
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IdList<Param,hParam> *param)
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{
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Vector gn = (SS.GW.projRight).Cross(SS.GW.projUp);
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gn = gn.WithMagnitude(200/SS.GW.scale);
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int i;
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switch(type) {
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case DRAWING_3D:
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break;
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case DRAWING_WORKPLANE: {
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Quaternion q;
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if(subtype == WORKPLANE_BY_LINE_SEGMENTS) {
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Vector u = SS.GetEntity(wrkpl.entityB)->VectorGetNum();
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Vector v = SS.GetEntity(wrkpl.entityC)->VectorGetNum();
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u = u.WithMagnitude(1);
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Vector n = u.Cross(v);
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v = (n.Cross(u)).WithMagnitude(1);
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if(wrkpl.swapUV) SWAP(Vector, u, v);
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if(wrkpl.negateU) u = u.ScaledBy(-1);
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if(wrkpl.negateV) v = v.ScaledBy(-1);
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q = Quaternion::MakeFrom(u, v);
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} else if(subtype == WORKPLANE_BY_POINT_ORTHO) {
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// Already given, numerically.
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q = wrkpl.q;
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} else oops();
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Entity normal;
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memset(&normal, 0, sizeof(normal));
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normal.type = Entity::NORMAL_N_COPY;
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normal.numNormal = q;
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normal.point[0] = h.entity(2);
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normal.group = h;
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normal.h = h.entity(1);
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entity->Add(&normal);
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Entity point;
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memset(&point, 0, sizeof(point));
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point.type = Entity::POINT_N_COPY;
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point.numPoint = SS.GetEntity(wrkpl.origin)->PointGetNum();
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point.group = h;
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point.h = h.entity(2);
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entity->Add(&point);
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Entity wp;
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memset(&wp, 0, sizeof(wp));
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wp.type = Entity::WORKPLANE;
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wp.normal = normal.h;
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wp.point[0] = point.h;
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wp.group = h;
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wp.h = h.entity(0);
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entity->Add(&wp);
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break;
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}
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case EXTRUDE:
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AddParam(param, h.param(0), gn.x);
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AddParam(param, h.param(1), gn.y);
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AddParam(param, h.param(2), gn.z);
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int ai, af;
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if(subtype == EXTRUDE_ONE_SIDED) {
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ai = 0; af = 1;
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} else if(subtype == EXTRUDE_TWO_SIDED) {
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ai = -1; af = 1;
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} else oops();
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for(i = 0; i < entity->n; i++) {
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Entity *e = &(entity->elem[i]);
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if(e->group.v != opA.v) continue;
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hEntity he = e->h; e = NULL;
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// As soon as I call CopyEntity, e may become invalid! That
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// adds entities, which may cause a realloc.
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CopyEntity(he, ai,
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h.param(0), h.param(1), h.param(2),
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NO_PARAM, NO_PARAM, NO_PARAM, NO_PARAM,
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true);
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CopyEntity(he, af,
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h.param(0), h.param(1), h.param(2),
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NO_PARAM, NO_PARAM, NO_PARAM, NO_PARAM,
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true);
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MakeExtrusionLines(he, ai, af);
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}
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break;
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case ROTATE:
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// The translation vector
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AddParam(param, h.param(0), 100);
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AddParam(param, h.param(1), 100);
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AddParam(param, h.param(2), 100);
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// The rotation quaternion
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AddParam(param, h.param(3), 1);
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AddParam(param, h.param(4), 0);
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AddParam(param, h.param(5), 0);
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AddParam(param, h.param(6), 0);
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for(i = 0; i < entity->n; i++) {
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Entity *e = &(entity->elem[i]);
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if(e->group.v != opA.v) continue;
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CopyEntity(e->h, 0,
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h.param(0), h.param(1), h.param(2),
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h.param(3), h.param(4), h.param(5), h.param(6),
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false);
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}
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break;
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default: oops();
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}
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}
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void Group::GenerateEquations(IdList<Equation,hEquation> *l) {
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Equation eq;
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if(type == ROTATE) {
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// Normalize the quaternion
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ExprQuaternion q = {
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Expr::FromParam(h.param(3)),
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Expr::FromParam(h.param(4)),
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Expr::FromParam(h.param(5)),
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Expr::FromParam(h.param(6)) };
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eq.e = (q.Magnitude())->Minus(Expr::FromConstant(1));
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eq.h = h.equation(0);
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l->Add(&eq);
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} else if(type == EXTRUDE) {
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if(wrkpl.entityB.v != Entity::FREE_IN_3D.v) {
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Entity *w = SS.GetEntity(wrkpl.entityB);
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ExprVector u = w->Normal()->NormalExprsU();
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ExprVector v = w->Normal()->NormalExprsV();
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ExprVector extruden = {
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Expr::FromParam(h.param(0)),
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Expr::FromParam(h.param(1)),
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Expr::FromParam(h.param(2)) };
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eq.e = u.Dot(extruden);
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eq.h = h.equation(0);
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l->Add(&eq);
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eq.e = v.Dot(extruden);
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eq.h = h.equation(1);
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l->Add(&eq);
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}
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}
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}
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hEntity Group::Remap(hEntity in, int copyNumber) {
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int i;
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for(i = 0; i < remap.n; i++) {
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EntityMap *em = &(remap.elem[i]);
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if(em->input.v == in.v && em->copyNumber == copyNumber) {
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// We already have a mapping for this entity.
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return h.entity(em->h.v);
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}
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}
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// We don't have a mapping yet, so create one.
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EntityMap em;
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em.input = in;
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em.copyNumber = copyNumber;
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remap.AddAndAssignId(&em);
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return h.entity(em.h.v);
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}
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void Group::MakeExtrusionLines(hEntity in, int ai, int af) {
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Entity *ep = SS.GetEntity(in);
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if(!(ep->IsPoint())) return;
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Entity en;
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memset(&en, 0, sizeof(en));
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en.point[0] = Remap(ep->h, ai);
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en.point[1] = Remap(ep->h, af);
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en.group = h;
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en.h = Remap(ep->h, 10);
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en.type = Entity::LINE_SEGMENT;
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// And then this line segment gets added
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SS.entity.Add(&en);
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}
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void Group::CopyEntity(hEntity in, int a, hParam dx, hParam dy, hParam dz,
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hParam qw, hParam qvx, hParam qvy, hParam qvz,
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bool transOnly)
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{
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Entity *ep = SS.GetEntity(in);
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Entity en;
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memset(&en, 0, sizeof(en));
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en.type = ep->type;
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en.h = Remap(ep->h, a);
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en.group = h;
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switch(ep->type) {
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case Entity::WORKPLANE:
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// Don't copy these.
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return;
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case Entity::LINE_SEGMENT:
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en.point[0] = Remap(ep->point[0], a);
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en.point[1] = Remap(ep->point[1], a);
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break;
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case Entity::CUBIC:
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en.point[0] = Remap(ep->point[0], a);
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en.point[1] = Remap(ep->point[1], a);
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en.point[2] = Remap(ep->point[2], a);
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en.point[3] = Remap(ep->point[3], a);
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break;
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case Entity::CIRCLE:
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en.point[0] = Remap(ep->point[0], a);
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en.normal = Remap(ep->normal, a);
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en.distance = Remap(ep->distance, a);
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break;
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case Entity::ARC_OF_CIRCLE:
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en.point[0] = Remap(ep->point[0], a);
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en.point[1] = Remap(ep->point[1], a);
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en.point[2] = Remap(ep->point[2], a);
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en.normal = Remap(ep->normal, a);
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break;
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case Entity::POINT_N_COPY:
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case Entity::POINT_N_TRANS:
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case Entity::POINT_N_ROT_TRANS:
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case Entity::POINT_IN_3D:
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case Entity::POINT_IN_2D:
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if(transOnly) {
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en.type = Entity::POINT_N_TRANS;
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en.param[0] = dx;
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en.param[1] = dy;
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en.param[2] = dz;
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} else {
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en.type = Entity::POINT_N_ROT_TRANS;
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en.param[0] = dx;
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en.param[1] = dy;
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en.param[2] = dz;
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en.param[3] = qw;
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en.param[4] = qvx;
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en.param[5] = qvy;
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en.param[6] = qvz;
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}
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en.numPoint = ep->PointGetNum();
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en.timesApplied = a;
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break;
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case Entity::NORMAL_N_COPY:
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case Entity::NORMAL_N_ROT:
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case Entity::NORMAL_IN_3D:
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case Entity::NORMAL_IN_2D:
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if(transOnly) {
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en.type = Entity::NORMAL_N_COPY;
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} else {
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en.type = Entity::NORMAL_N_ROT;
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en.param[0] = qw;
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en.param[1] = qvx;
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en.param[2] = qvy;
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en.param[3] = qvz;
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}
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en.numNormal = ep->NormalGetNum();
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en.point[0] = Remap(ep->point[0], a);
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en.timesApplied = a;
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break;
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case Entity::DISTANCE_N_COPY:
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case Entity::DISTANCE:
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en.type = Entity::DISTANCE_N_COPY;
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en.numDistance = ep->DistanceGetNum();
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break;
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default:
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oops();
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}
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SS.entity.Add(&en);
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}
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void Group::MakePolygons(void) {
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int i;
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for(i = 0; i < faces.n; i++) {
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(faces.elem[i]).Clear();
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}
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faces.Clear();
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if(type == DRAWING_3D || type == DRAWING_WORKPLANE) {
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edges.l.Clear();
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int i;
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for(i = 0; i < SS.entity.n; i++) {
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Entity *e = &(SS.entity.elem[i]);
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if(e->group.v != h.v) continue;
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e->GenerateEdges(&edges);
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}
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SPolygon poly;
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memset(&poly, 0, sizeof(poly));
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SEdge error;
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if(edges.AssemblePolygon(&poly, &error)) {
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polyError.yes = false;
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poly.normal = poly.ComputeNormal();
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faces.Add(&poly);
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} else {
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polyError.yes = true;
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polyError.notClosedAt = error;
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poly.Clear();
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}
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} else if(type == EXTRUDE) {
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Vector translate;
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translate.x = SS.GetParam(h.param(0))->val;
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translate.y = SS.GetParam(h.param(1))->val;
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translate.z = SS.GetParam(h.param(2))->val;
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Vector t0, dt;
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if(subtype == EXTRUDE_ONE_SIDED) {
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t0 = Vector::MakeFrom(0, 0, 0); dt = translate;
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} else {
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t0 = translate.ScaledBy(-1); dt = translate.ScaledBy(2);
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}
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// Get the source polygon to extrude, and break it down to edges
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edges.l.Clear();
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Group *src = SS.GetGroup(opA);
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if(src->faces.n != 1) return;
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(src->faces.elem[0]).MakeEdgesInto(&edges);
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for(i = 0; i < edges.l.n; i++) {
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SEdge *edge = &(edges.l.elem[i]);
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edge->a = (edge->a).Plus(t0);
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edge->b = (edge->b).Plus(t0);
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}
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SPolygon poly;
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SEdge error;
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// The bottom
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memset(&poly, 0, sizeof(poly));
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if(!edges.AssemblePolygon(&poly, &error)) oops();
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Vector n = poly.ComputeNormal();
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if(translate.Dot(n) > 0) {
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n = n.ScaledBy(-1);
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}
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poly.normal = n;
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poly.FixContourDirections();
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faces.Add(&poly);
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// Regenerate the edges, with the contour directions fixed up.
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edges.l.Clear();
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poly.MakeEdgesInto(&edges);
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// The sides
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int i;
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for(i = 0; i < edges.l.n; i++) {
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SEdge *edge = &(edges.l.elem[i]);
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memset(&poly, 0, sizeof(poly));
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poly.AddEmptyContour();
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poly.AddPoint(edge->a);
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poly.AddPoint(edge->b);
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poly.AddPoint((edge->b).Plus(dt));
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poly.AddPoint((edge->a).Plus(dt));
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poly.AddPoint(edge->a);
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poly.normal = ((edge->a).Minus(edge->b).Cross(n)).WithMagnitude(1);
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faces.Add(&poly);
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edge->a = (edge->a).Plus(dt);
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edge->b = (edge->b).Plus(dt);
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}
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// The top
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memset(&poly, 0, sizeof(poly));
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if(!edges.AssemblePolygon(&poly, &error)) oops();
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poly.normal = n.ScaledBy(-1);
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faces.Add(&poly);
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}
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}
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void Group::Draw(void) {
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if(!visible) return;
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if(polyError.yes) {
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glxColor4d(1, 0, 0, 0.2);
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glLineWidth(10);
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glBegin(GL_LINES);
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glxVertex3v(polyError.notClosedAt.a);
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glxVertex3v(polyError.notClosedAt.b);
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glEnd();
|
|
glLineWidth(1);
|
|
glxColor3d(1, 0, 0);
|
|
glPushMatrix();
|
|
glxTranslatev(polyError.notClosedAt.b);
|
|
glxOntoWorkplane(SS.GW.projRight, SS.GW.projUp);
|
|
glxWriteText("not closed contour!");
|
|
glPopMatrix();
|
|
} else {
|
|
int i;
|
|
glEnable(GL_LIGHTING);
|
|
GLfloat vec[] = { 0.3f, 0.3f, 0.3f, 1.0 };
|
|
glMaterialfv(GL_FRONT, GL_AMBIENT_AND_DIFFUSE, vec);
|
|
GLfloat vec2[] = { 1.0f, 0.3f, 0.3f, 1.0 };
|
|
glMaterialfv(GL_BACK, GL_AMBIENT_AND_DIFFUSE, vec2);
|
|
for(i = 0; i < faces.n; i++) {
|
|
glxFillPolygon(&(faces.elem[i]));
|
|
#if 0
|
|
// Debug stuff to show normals to the faces on-screen
|
|
glDisable(GL_LIGHTING);
|
|
glDisable(GL_DEPTH_TEST);
|
|
glxMarkPolygonNormal(&(faces.elem[i]));
|
|
glEnable(GL_LIGHTING);
|
|
glEnable(GL_DEPTH_TEST);
|
|
#endif
|
|
|
|
}
|
|
glDisable(GL_LIGHTING);
|
|
}
|
|
}
|
|
|
|
hParam Request::AddParam(IdList<Param,hParam> *param, hParam hp) {
|
|
Param pa;
|
|
memset(&pa, 0, sizeof(pa));
|
|
pa.h = hp;
|
|
param->Add(&pa);
|
|
return hp;
|
|
}
|
|
|
|
void Request::Generate(IdList<Entity,hEntity> *entity,
|
|
IdList<Param,hParam> *param)
|
|
{
|
|
int points = 0;
|
|
int params = 0;
|
|
int et = 0;
|
|
bool hasNormal = false;
|
|
bool hasDistance = false;
|
|
int i;
|
|
|
|
Entity e;
|
|
memset(&e, 0, sizeof(e));
|
|
switch(type) {
|
|
case Request::WORKPLANE:
|
|
et = Entity::WORKPLANE;
|
|
points = 1;
|
|
hasNormal = true;
|
|
break;
|
|
|
|
case Request::DATUM_POINT:
|
|
et = 0;
|
|
points = 1;
|
|
break;
|
|
|
|
case Request::LINE_SEGMENT:
|
|
et = Entity::LINE_SEGMENT;
|
|
points = 2;
|
|
break;
|
|
|
|
case Request::CIRCLE:
|
|
et = Entity::CIRCLE;
|
|
points = 1;
|
|
params = 1;
|
|
hasNormal = true;
|
|
hasDistance = true;
|
|
break;
|
|
|
|
case Request::ARC_OF_CIRCLE:
|
|
et = Entity::ARC_OF_CIRCLE;
|
|
points = 3;
|
|
hasNormal = true;
|
|
break;
|
|
|
|
case Request::CUBIC:
|
|
et = Entity::CUBIC;
|
|
points = 4;
|
|
break;
|
|
|
|
default: oops();
|
|
}
|
|
|
|
// Generate the entity that's specific to this request.
|
|
e.type = et;
|
|
e.group = group;
|
|
e.workplane = workplane;
|
|
e.construction = construction;
|
|
e.h = h.entity(0);
|
|
|
|
// And generate entities for the points
|
|
for(i = 0; i < points; i++) {
|
|
Entity p;
|
|
memset(&p, 0, sizeof(p));
|
|
p.workplane = workplane;
|
|
// points start from entity 1, except for datum point case
|
|
p.h = h.entity(i+(et ? 1 : 0));
|
|
p.group = group;
|
|
|
|
if(workplane.v == Entity::FREE_IN_3D.v) {
|
|
p.type = Entity::POINT_IN_3D;
|
|
// params for x y z
|
|
p.param[0] = AddParam(param, h.param(16 + 3*i + 0));
|
|
p.param[1] = AddParam(param, h.param(16 + 3*i + 1));
|
|
p.param[2] = AddParam(param, h.param(16 + 3*i + 2));
|
|
} else {
|
|
p.type = Entity::POINT_IN_2D;
|
|
// params for u v
|
|
p.param[0] = AddParam(param, h.param(16 + 3*i + 0));
|
|
p.param[1] = AddParam(param, h.param(16 + 3*i + 1));
|
|
}
|
|
entity->Add(&p);
|
|
e.point[i] = p.h;
|
|
}
|
|
if(hasNormal) {
|
|
Entity n;
|
|
memset(&n, 0, sizeof(n));
|
|
n.workplane = workplane;
|
|
n.h = h.entity(32);
|
|
n.group = group;
|
|
if(workplane.v == Entity::FREE_IN_3D.v) {
|
|
n.type = Entity::NORMAL_IN_3D;
|
|
n.param[0] = AddParam(param, h.param(32+0));
|
|
n.param[1] = AddParam(param, h.param(32+1));
|
|
n.param[2] = AddParam(param, h.param(32+2));
|
|
n.param[3] = AddParam(param, h.param(32+3));
|
|
} else {
|
|
n.type = Entity::NORMAL_IN_2D;
|
|
// and this is just a copy of the workplane quaternion,
|
|
// so no params required
|
|
}
|
|
if(points < 1) oops();
|
|
// The point determines where the normal gets displayed on-screen;
|
|
// it's entirely cosmetic.
|
|
n.point[0] = e.point[0];
|
|
entity->Add(&n);
|
|
e.normal = n.h;
|
|
}
|
|
if(hasDistance) {
|
|
Entity d;
|
|
memset(&d, 0, sizeof(d));
|
|
d.workplane = workplane;
|
|
d.h = h.entity(64);
|
|
d.group = group;
|
|
d.type = Entity::DISTANCE;
|
|
d.param[0] = AddParam(param, h.param(64));
|
|
entity->Add(&d);
|
|
e.distance = d.h;
|
|
}
|
|
// And generate any params not associated with the point that
|
|
// we happen to need.
|
|
for(i = 0; i < params; i++) {
|
|
e.param[i] = AddParam(param, h.param(i));
|
|
}
|
|
|
|
if(et) entity->Add(&e);
|
|
}
|
|
|
|
char *Request::DescriptionString(void) {
|
|
static char ret[100];
|
|
if(name.str[0]) {
|
|
sprintf(ret, "r%03x-%s", h.v, name.str);
|
|
} else {
|
|
sprintf(ret, "r%03x-(unnamed)", h.v);
|
|
}
|
|
return ret;
|
|
}
|
|
|