574 lines
19 KiB
C++
574 lines
19 KiB
C++
//-----------------------------------------------------------------------------
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// Generate our model based on its parametric description, by solving each
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// sketch, generating surfaces from the resulting entities, performing any
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// requested surface operations (e.g. Booleans) with our model so far, and
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// then repeating this process for each subsequent group.
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//
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// Copyright 2008-2013 Jonathan Westhues.
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//-----------------------------------------------------------------------------
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#include "solvespace.h"
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void SolveSpaceUI::MarkGroupDirtyByEntity(hEntity he) {
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Entity *e = SK.GetEntity(he);
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MarkGroupDirty(e->group);
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}
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void SolveSpaceUI::MarkGroupDirty(hGroup hg, bool onlyThis) {
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int i;
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bool go = false;
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for(i = 0; i < SK.groupOrder.n; i++) {
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Group *g = SK.GetGroup(SK.groupOrder.elem[i]);
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if(g->h.v == hg.v) {
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go = true;
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}
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if(go) {
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g->clean = false;
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if(onlyThis) break;
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}
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}
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unsaved = true;
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ScheduleGenerateAll();
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}
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bool SolveSpaceUI::PruneOrphans() {
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int i;
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for(i = 0; i < SK.request.n; i++) {
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Request *r = &(SK.request.elem[i]);
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if(GroupExists(r->group)) continue;
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(deleted.requests)++;
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SK.request.RemoveById(r->h);
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return true;
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}
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for(i = 0; i < SK.constraint.n; i++) {
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Constraint *c = &(SK.constraint.elem[i]);
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if(GroupExists(c->group)) continue;
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(deleted.constraints)++;
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(deleted.nonTrivialConstraints)++;
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SK.constraint.RemoveById(c->h);
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return true;
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}
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return false;
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}
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bool SolveSpaceUI::GroupsInOrder(hGroup before, hGroup after) {
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if(before.v == 0) return true;
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if(after.v == 0) return true;
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if(!GroupExists(before)) return false;
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if(!GroupExists(after)) return false;
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int beforep = SK.GetGroup(before)->order;
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int afterp = SK.GetGroup(after)->order;
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if(beforep >= afterp) return false;
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return true;
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}
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bool SolveSpaceUI::GroupExists(hGroup hg) {
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// A nonexistent group is not acceptable
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return SK.group.FindByIdNoOops(hg) ? true : false;
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}
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bool SolveSpaceUI::EntityExists(hEntity he) {
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// A nonexstient entity is acceptable, though, usually just means it
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// doesn't apply.
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if(he.v == Entity::NO_ENTITY.v) return true;
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return SK.entity.FindByIdNoOops(he) ? true : false;
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}
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bool SolveSpaceUI::PruneGroups(hGroup hg) {
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Group *g = SK.GetGroup(hg);
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if(GroupsInOrder(g->opA, hg) &&
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EntityExists(g->predef.origin) &&
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EntityExists(g->predef.entityB) &&
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EntityExists(g->predef.entityC))
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{
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return false;
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}
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(deleted.groups)++;
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SK.group.RemoveById(g->h);
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return true;
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}
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bool SolveSpaceUI::PruneRequests(hGroup hg) {
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int i;
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for(i = 0; i < SK.entity.n; i++) {
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Entity *e = &(SK.entity.elem[i]);
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if(e->group.v != hg.v) continue;
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if(EntityExists(e->workplane)) continue;
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ssassert(e->h.isFromRequest(), "Only explicitly created entities can be pruned");
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(deleted.requests)++;
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SK.request.RemoveById(e->h.request());
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return true;
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}
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return false;
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}
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bool SolveSpaceUI::PruneConstraints(hGroup hg) {
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int i;
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for(i = 0; i < SK.constraint.n; i++) {
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Constraint *c = &(SK.constraint.elem[i]);
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if(c->group.v != hg.v) continue;
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if(EntityExists(c->workplane) &&
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EntityExists(c->ptA) &&
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EntityExists(c->ptB) &&
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EntityExists(c->entityA) &&
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EntityExists(c->entityB) &&
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EntityExists(c->entityC) &&
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EntityExists(c->entityD))
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{
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continue;
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}
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(deleted.constraints)++;
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if(c->type != Constraint::Type::POINTS_COINCIDENT &&
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c->type != Constraint::Type::HORIZONTAL &&
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c->type != Constraint::Type::VERTICAL)
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{
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(deleted.nonTrivialConstraints)++;
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}
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SK.constraint.RemoveById(c->h);
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return true;
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}
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return false;
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}
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void SolveSpaceUI::GenerateAll(Generate type, bool andFindFree, bool genForBBox) {
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int first = 0, last = 0, i, j;
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uint64_t startMillis = GetMilliseconds(),
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endMillis;
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SK.groupOrder.Clear();
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for(int i = 0; i < SK.group.n; i++)
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SK.groupOrder.Add(&SK.group.elem[i].h);
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std::sort(SK.groupOrder.begin(), SK.groupOrder.end(),
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[](const hGroup &ha, const hGroup &hb) {
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return SK.GetGroup(ha)->order < SK.GetGroup(hb)->order;
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});
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switch(type) {
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case Generate::DIRTY: {
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first = INT_MAX;
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last = 0;
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// Start from the first dirty group, and solve until the active group,
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// since all groups after the active group are hidden.
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for(i = 0; i < SK.groupOrder.n; i++) {
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Group *g = SK.GetGroup(SK.groupOrder.elem[i]);
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if((!g->clean) || !g->IsSolvedOkay()) {
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first = min(first, i);
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}
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if(g->h.v == SS.GW.activeGroup.v) {
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last = i;
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}
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}
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if(first == INT_MAX || last == 0) {
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// All clean; so just regenerate the entities, and don't solve anything.
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first = -1;
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last = -1;
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} else {
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SS.nakedEdges.Clear();
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}
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break;
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}
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case Generate::ALL:
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first = 0;
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last = INT_MAX;
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break;
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case Generate::REGEN:
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first = -1;
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last = -1;
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break;
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case Generate::UNTIL_ACTIVE: {
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for(i = 0; i < SK.groupOrder.n; i++) {
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if(SK.groupOrder.elem[i].v == SS.GW.activeGroup.v)
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break;
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}
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first = 0;
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last = i;
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break;
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}
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}
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// If we're generating entities for display, first we need to find
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// the bounding box to turn relative chord tolerance to absolute.
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if(!SS.exportMode && !genForBBox) {
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GenerateAll(type, andFindFree, /*genForBBox=*/true);
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BBox box = SK.CalculateEntityBBox(/*includeInvisibles=*/true);
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Vector size = box.maxp.Minus(box.minp);
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double maxSize = std::max({ size.x, size.y, size.z });
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chordTolCalculated = maxSize * chordTol / 100.0;
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}
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// Remove any requests or constraints that refer to a nonexistent
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// group; can check those immediately, since we know what the list
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// of groups should be.
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while(PruneOrphans())
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;
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// Don't lose our numerical guesses when we regenerate.
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IdList<Param,hParam> prev = {};
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SK.param.MoveSelfInto(&prev);
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SK.param.ReserveMore(prev.n);
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int oldEntityCount = SK.entity.n;
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SK.entity.Clear();
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SK.entity.ReserveMore(oldEntityCount);
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for(i = 0; i < SK.groupOrder.n; i++) {
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Group *g = SK.GetGroup(SK.groupOrder.elem[i]);
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// The group may depend on entities or other groups, to define its
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// workplane geometry or for its operands. Those must already exist
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// in a previous group, so check them before generating.
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if(PruneGroups(g->h))
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goto pruned;
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for(j = 0; j < SK.request.n; j++) {
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Request *r = &(SK.request.elem[j]);
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if(r->group.v != g->h.v) continue;
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r->Generate(&(SK.entity), &(SK.param));
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}
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for(j = 0; j < SK.constraint.n; j++) {
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Constraint *c = &SK.constraint.elem[j];
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if(c->group.v != g->h.v) continue;
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c->Generate(&(SK.param));
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}
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g->Generate(&(SK.entity), &(SK.param));
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// The requests and constraints depend on stuff in this or the
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// previous group, so check them after generating.
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if(PruneRequests(g->h) || PruneConstraints(g->h))
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goto pruned;
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// Use the previous values for params that we've seen before, as
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// initial guesses for the solver.
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for(j = 0; j < SK.param.n; j++) {
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Param *newp = &(SK.param.elem[j]);
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if(newp->known) continue;
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Param *prevp = prev.FindByIdNoOops(newp->h);
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if(prevp) {
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newp->val = prevp->val;
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newp->free = prevp->free;
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}
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}
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if(g->h.v == Group::HGROUP_REFERENCES.v) {
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ForceReferences();
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g->solved.how = SolveResult::OKAY;
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g->clean = true;
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} else {
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if(i >= first && i <= last) {
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// The group falls inside the range, so really solve it,
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// and then regenerate the mesh based on the solved stuff.
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if(genForBBox) {
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SolveGroupAndReport(g->h, andFindFree);
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g->GenerateLoops();
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} else {
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g->GenerateShellAndMesh();
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g->clean = true;
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}
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} else {
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// The group falls outside the range, so just assume that
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// it's good wherever we left it. The mesh is unchanged,
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// and the parameters must be marked as known.
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for(j = 0; j < SK.param.n; j++) {
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Param *newp = &(SK.param.elem[j]);
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Param *prevp = prev.FindByIdNoOops(newp->h);
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if(prevp) newp->known = true;
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}
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}
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}
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}
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// And update any reference dimensions with their new values
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for(i = 0; i < SK.constraint.n; i++) {
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Constraint *c = &(SK.constraint.elem[i]);
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if(c->reference) {
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c->ModifyToSatisfy();
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}
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}
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// Make sure the point that we're tracing exists.
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if(traced.point.v && !SK.entity.FindByIdNoOops(traced.point)) {
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traced.point = Entity::NO_ENTITY;
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}
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// And if we're tracing a point, add its new value to the path
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if(traced.point.v) {
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Entity *pt = SK.GetEntity(traced.point);
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traced.path.AddPoint(pt->PointGetNum());
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}
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prev.Clear();
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GW.Invalidate();
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// Remove nonexistent selection items, for same reason we waited till
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// the end to put up a dialog box.
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GW.ClearNonexistentSelectionItems();
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if(deleted.requests > 0 || deleted.constraints > 0 || deleted.groups > 0) {
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// All sorts of interesting things could have happened; for example,
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// the active group or active workplane could have been deleted. So
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// clear all that out.
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if(deleted.groups > 0) {
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SS.TW.ClearSuper();
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}
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ScheduleShowTW();
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GW.ClearSuper();
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// People get annoyed if I complain whenever they delete any request,
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// and I otherwise will, since those always come with pt-coincident
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// constraints.
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if(deleted.requests > 0 || deleted.nonTrivialConstraints > 0 ||
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deleted.groups > 0)
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{
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// Don't display any errors until we've regenerated fully. The
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// sketch is not necessarily in a consistent state until we've
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// pruned any orphaned etc. objects, and the message loop for the
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// messagebox could allow us to repaint and crash. But now we must
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// be fine.
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Message("Additional sketch elements were deleted, because they "
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"depend on the element that was just deleted explicitly. "
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"These include: \n"
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" %d request%s\n"
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" %d constraint%s\n"
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" %d group%s"
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"%s",
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deleted.requests, deleted.requests == 1 ? "" : "s",
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deleted.constraints, deleted.constraints == 1 ? "" : "s",
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deleted.groups, deleted.groups == 1 ? "" : "s",
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undo.cnt > 0 ? "\n\nChoose Edit -> Undo to undelete all elements." : "");
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}
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deleted = {};
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}
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FreeAllTemporary();
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allConsistent = true;
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SS.GW.persistentDirty = true;
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SS.centerOfMass.dirty = true;
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endMillis = GetMilliseconds();
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if(endMillis - startMillis > 30) {
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const char *typeStr = "";
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switch(type) {
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case Generate::DIRTY: typeStr = "DIRTY"; break;
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case Generate::ALL: typeStr = "ALL"; break;
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case Generate::REGEN: typeStr = "REGEN"; break;
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case Generate::UNTIL_ACTIVE: typeStr = "UNTIL_ACTIVE"; break;
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}
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if(endMillis)
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dbp("Generate::%s%s took %lld ms",
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typeStr,
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(genForBBox ? " (for bounding box)" : ""),
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GetMilliseconds() - startMillis);
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}
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return;
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pruned:
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// Restore the numerical guesses
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SK.param.Clear();
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prev.MoveSelfInto(&(SK.param));
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// Try again
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GenerateAll(type, andFindFree, genForBBox);
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}
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void SolveSpaceUI::ForceReferences() {
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// Force the values of the parameters that define the three reference
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// coordinate systems.
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static const struct {
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hRequest hr;
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Quaternion q;
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} Quat[] = {
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{ Request::HREQUEST_REFERENCE_XY, { 1, 0, 0, 0, } },
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{ Request::HREQUEST_REFERENCE_YZ, { 0.5, 0.5, 0.5, 0.5, } },
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{ Request::HREQUEST_REFERENCE_ZX, { 0.5, -0.5, -0.5, -0.5, } },
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};
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for(int i = 0; i < 3; i++) {
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hRequest hr = Quat[i].hr;
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Entity *wrkpl = SK.GetEntity(hr.entity(0));
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// The origin for our coordinate system, always zero
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Entity *origin = SK.GetEntity(wrkpl->point[0]);
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origin->PointForceTo(Vector::From(0, 0, 0));
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origin->construction = true;
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SK.GetParam(origin->param[0])->known = true;
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SK.GetParam(origin->param[1])->known = true;
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SK.GetParam(origin->param[2])->known = true;
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// The quaternion that defines the rotation, from the table.
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Entity *normal = SK.GetEntity(wrkpl->normal);
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normal->NormalForceTo(Quat[i].q);
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SK.GetParam(normal->param[0])->known = true;
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SK.GetParam(normal->param[1])->known = true;
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SK.GetParam(normal->param[2])->known = true;
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SK.GetParam(normal->param[3])->known = true;
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}
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}
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void SolveSpaceUI::UpdateCenterOfMass() {
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SMesh *m = &(SK.GetGroup(SS.GW.activeGroup)->displayMesh);
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SS.centerOfMass.position = m->GetCenterOfMass();
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SS.centerOfMass.dirty = false;
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}
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void SolveSpaceUI::MarkDraggedParams() {
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sys.dragged.Clear();
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for(int i = -1; i < SS.GW.pending.points.n; i++) {
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hEntity hp;
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if(i == -1) {
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hp = SS.GW.pending.point;
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} else {
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hp = SS.GW.pending.points.elem[i];
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}
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if(!hp.v) continue;
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// The pending point could be one in a group that has not yet
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// been processed, in which case the lookup will fail; but
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// that's not an error.
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Entity *pt = SK.entity.FindByIdNoOops(hp);
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if(pt) {
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switch(pt->type) {
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case Entity::Type::POINT_N_TRANS:
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case Entity::Type::POINT_IN_3D:
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sys.dragged.Add(&(pt->param[0]));
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sys.dragged.Add(&(pt->param[1]));
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sys.dragged.Add(&(pt->param[2]));
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break;
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case Entity::Type::POINT_IN_2D:
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sys.dragged.Add(&(pt->param[0]));
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sys.dragged.Add(&(pt->param[1]));
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break;
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default: // Only the entities above can be dragged.
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break;
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}
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}
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}
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if(SS.GW.pending.circle.v) {
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Entity *circ = SK.entity.FindByIdNoOops(SS.GW.pending.circle);
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if(circ) {
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Entity *dist = SK.GetEntity(circ->distance);
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switch(dist->type) {
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case Entity::Type::DISTANCE:
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sys.dragged.Add(&(dist->param[0]));
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break;
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default: // Only the entities above can be dragged.
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break;
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}
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}
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}
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if(SS.GW.pending.normal.v) {
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Entity *norm = SK.entity.FindByIdNoOops(SS.GW.pending.normal);
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if(norm) {
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switch(norm->type) {
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case Entity::Type::NORMAL_IN_3D:
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sys.dragged.Add(&(norm->param[0]));
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sys.dragged.Add(&(norm->param[1]));
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sys.dragged.Add(&(norm->param[2]));
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sys.dragged.Add(&(norm->param[3]));
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break;
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default: // Only the entities above can be dragged.
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break;
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}
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}
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}
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}
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void SolveSpaceUI::SolveGroupAndReport(hGroup hg, bool andFindFree) {
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SolveGroup(hg, andFindFree);
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Group *g = SK.GetGroup(hg);
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bool isOkay = g->solved.how == SolveResult::OKAY ||
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(g->allowRedundant && g->solved.how == SolveResult::REDUNDANT_OKAY);
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if(!isOkay || (isOkay && !g->IsSolvedOkay())) {
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TextWindow::ReportHowGroupSolved(g->h);
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}
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}
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void SolveSpaceUI::WriteEqSystemForGroup(hGroup hg) {
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int i;
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// Clear out the system to be solved.
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sys.entity.Clear();
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|
sys.param.Clear();
|
|
sys.eq.Clear();
|
|
// And generate all the params for requests in this group
|
|
for(i = 0; i < SK.request.n; i++) {
|
|
Request *r = &(SK.request.elem[i]);
|
|
if(r->group.v != hg.v) continue;
|
|
|
|
r->Generate(&(sys.entity), &(sys.param));
|
|
}
|
|
for(i = 0; i < SK.constraint.n; i++) {
|
|
Constraint *c = &SK.constraint.elem[i];
|
|
if(c->group.v != hg.v) continue;
|
|
|
|
c->Generate(&(sys.param));
|
|
}
|
|
// And for the group itself
|
|
Group *g = SK.GetGroup(hg);
|
|
g->Generate(&(sys.entity), &(sys.param));
|
|
// Set the initial guesses for all the params
|
|
for(i = 0; i < sys.param.n; i++) {
|
|
Param *p = &(sys.param.elem[i]);
|
|
p->known = false;
|
|
p->val = SK.GetParam(p->h)->val;
|
|
}
|
|
|
|
MarkDraggedParams();
|
|
}
|
|
|
|
void SolveSpaceUI::SolveGroup(hGroup hg, bool andFindFree) {
|
|
WriteEqSystemForGroup(hg);
|
|
Group *g = SK.GetGroup(hg);
|
|
g->solved.remove.Clear();
|
|
SolveResult how = sys.Solve(g, &(g->solved.dof),
|
|
&(g->solved.remove),
|
|
/*andFindBad=*/true,
|
|
/*andFindFree=*/andFindFree,
|
|
/*forceDofCheck=*/!g->dofCheckOk);
|
|
if(how == SolveResult::OKAY) {
|
|
g->dofCheckOk = true;
|
|
}
|
|
g->solved.how = how;
|
|
FreeAllTemporary();
|
|
}
|
|
|
|
SolveResult SolveSpaceUI::TestRankForGroup(hGroup hg) {
|
|
WriteEqSystemForGroup(hg);
|
|
Group *g = SK.GetGroup(hg);
|
|
SolveResult result = sys.SolveRank(g, NULL, NULL, false, false,
|
|
/*forceDofCheck=*/!g->dofCheckOk);
|
|
FreeAllTemporary();
|
|
return result;
|
|
}
|
|
|
|
bool SolveSpaceUI::ActiveGroupsOkay() {
|
|
for(int i = 0; i < SK.groupOrder.n; i++) {
|
|
Group *g = SK.GetGroup(SK.groupOrder.elem[i]);
|
|
if(!g->IsSolvedOkay())
|
|
return false;
|
|
if(g->h.v == SS.GW.activeGroup.v)
|
|
break;
|
|
}
|
|
return true;
|
|
}
|
|
|