mirror of https://github.com/vitalif/openscad
Clifford Wolf:
Added cgaladv.cc with advanced transformations via CGAL (as of now only 3d minkowksi sum is implemented but more is planned) git-svn-id: http://svn.clifford.at/openscad/trunk@446 b57f626f-c46c-0410-a088-ec61d464b74cstl_dim
parent
0b0aa7b9b3
commit
332e835f87
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@ -113,6 +113,7 @@ SOURCES += src/openscad.cc \
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src/transform.cc \
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src/primitives.cc \
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src/projection.cc \
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src/cgaladv.cc \
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src/surface.cc \
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src/control.cc \
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src/render.cc \
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@ -19,6 +19,7 @@ extern void register_builtin_control();
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extern void register_builtin_render();
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extern void register_builtin_import();
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extern void register_builtin_projection();
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extern void register_builtin_cgaladv();
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extern void register_builtin_dxf_linear_extrude();
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extern void register_builtin_dxf_rotate_extrude();
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extern void initialize_builtin_dxf_dim();
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36
src/cgal.h
36
src/cgal.h
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@ -45,6 +45,42 @@ struct CGAL_Nef_polyhedron
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p3 = p;
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}
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CGAL_Nef_polyhedron& operator+=(const CGAL_Nef_polyhedron &other) {
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if (other.dim == 2) {
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this->p2 += other.p2;
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this->dim = 2;
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}
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if (other.dim == 3) {
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this->p3 += other.p3;
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this->dim = 3;
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}
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return *this;
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}
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CGAL_Nef_polyhedron& operator*=(const CGAL_Nef_polyhedron &other) {
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if (other.dim == 2) {
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this->p2 *= other.p2;
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this->dim = 2;
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}
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if (other.dim == 3) {
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this->p3 *= other.p3;
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this->dim = 3;
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}
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return *this;
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}
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CGAL_Nef_polyhedron& operator-=(const CGAL_Nef_polyhedron &other) {
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if (other.dim == 2) {
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this->p2 -= other.p2;
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this->dim = 2;
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}
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if (other.dim == 3) {
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this->p3 -= other.p3;
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this->dim = 3;
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}
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return *this;
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}
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int weight() {
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if (dim == 2)
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return p2.explorer().number_of_vertices();
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@ -0,0 +1,224 @@
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/*
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* OpenSCAD (www.openscad.at)
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* Copyright (C) 2009 Clifford Wolf <clifford@clifford.at>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* As a special exception, you have permission to link this program
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* with the CGAL library and distribute executables, as long as you
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* follow the requirements of the GNU GPL in regard to all of the
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* software in the executable aside from CGAL.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#include "module.h"
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#include "node.h"
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#include "context.h"
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#include "builtin.h"
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#include "printutils.h"
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#include "cgal.h"
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#include <CGAL/minkowski_sum_3.h>
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enum cgaladv_type_e {
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MINKOWSKI,
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GLIDE,
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SUBDIV
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};
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class CgaladvModule : public AbstractModule
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{
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public:
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cgaladv_type_e type;
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CgaladvModule(cgaladv_type_e type) : type(type) { }
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virtual AbstractNode *evaluate(const Context *ctx, const ModuleInstantiation *inst) const;
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};
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class CgaladvNode : public AbstractNode
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{
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public:
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Value path;
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QString subdiv_type;
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int convexity, level;
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cgaladv_type_e type;
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CgaladvNode(const ModuleInstantiation *mi, cgaladv_type_e type) : AbstractNode(mi), type(type) {
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convexity = 1;
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}
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#ifdef ENABLE_CGAL
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virtual CGAL_Nef_polyhedron render_cgal_nef_polyhedron() const;
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#endif
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virtual CSGTerm *render_csg_term(double m[20], QVector<CSGTerm*> *highlights, QVector<CSGTerm*> *background) const;
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virtual QString dump(QString indent) const;
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};
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AbstractNode *CgaladvModule::evaluate(const Context *ctx, const ModuleInstantiation *inst) const
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{
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CgaladvNode *node = new CgaladvNode(inst, type);
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QVector<QString> argnames;
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QVector<Expression*> argexpr;
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if (type == MINKOWSKI)
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argnames = QVector<QString>() << "convexity";
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if (type == GLIDE)
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argnames = QVector<QString>() << "path" << "convexity";
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if (type == SUBDIV)
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argnames = QVector<QString>() << "type" << "level" << "convexity";
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Context c(ctx);
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c.args(argnames, argexpr, inst->argnames, inst->argvalues);
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Value convexity, path, subdiv_type, level;
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if (type == MINKOWSKI) {
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convexity = c.lookup_variable("convexity", true);
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}
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if (type == GLIDE) {
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convexity = c.lookup_variable("convexity", true);
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path = c.lookup_variable("path", false);
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}
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if (type == SUBDIV) {
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convexity = c.lookup_variable("convexity", true);
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subdiv_type = c.lookup_variable("type", false);
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level = c.lookup_variable("level", true);
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}
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node->convexity = (int)convexity.num;
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node->path = path;
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node->subdiv_type = subdiv_type.text;
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node->level = (int)level.num;
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if (node->level <= 1)
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node->level = 1;
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foreach (ModuleInstantiation *v, inst->children) {
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AbstractNode *n = v->evaluate(inst->ctx);
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if (n)
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node->children.append(n);
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}
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return node;
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}
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void register_builtin_cgaladv()
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{
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builtin_modules["minkowski"] = new CgaladvModule(MINKOWSKI);
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builtin_modules["glide"] = new CgaladvModule(GLIDE);
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builtin_modules["subdiv"] = new CgaladvModule(SUBDIV);
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}
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#ifdef ENABLE_CGAL
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CGAL_Nef_polyhedron CgaladvNode::render_cgal_nef_polyhedron() const
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{
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QString cache_id = mk_cache_id();
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if (cgal_nef_cache.contains(cache_id)) {
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progress_report();
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PRINT(cgal_nef_cache[cache_id]->msg);
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return cgal_nef_cache[cache_id]->N;
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}
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print_messages_push();
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CGAL_Nef_polyhedron N;
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if (type == MINKOWSKI)
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{
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bool first = true;
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CGAL_Nef_polyhedron a, b;
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foreach(AbstractNode * v, children) {
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if (v->modinst->tag_background)
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continue;
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if (first) {
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a = v->render_cgal_nef_polyhedron();
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if (a.dim != 0)
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first = false;
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} else {
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b += v->render_cgal_nef_polyhedron();
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}
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}
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if (a.dim == 3 && b.dim == 3) {
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N.dim = 3;
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N.p3 = CGAL::minkowski_sum_3(a.p3, b.p3);
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}
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if (a.dim == 2 && b.dim == 2) {
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PRINT("WARNING: minkowski() is not implemented yet for 2d objects!");
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}
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}
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if (type == GLIDE)
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{
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PRINT("WARNING: subdiv() is not implemented yet!");
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}
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if (type == SUBDIV)
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{
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PRINT("WARNING: subdiv() is not implemented yet!");
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}
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cgal_nef_cache.insert(cache_id, new cgal_nef_cache_entry(N), N.weight());
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print_messages_pop();
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progress_report();
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return N;
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}
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CSGTerm *CgaladvNode::render_csg_term(double m[20], QVector<CSGTerm*> *highlights, QVector<CSGTerm*> *background) const
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{
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if (type == MINKOWSKI)
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return render_csg_term_from_nef(m, highlights, background, "minkowski", this->convexity);
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if (type == GLIDE)
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return render_csg_term_from_nef(m, highlights, background, "glide", this->convexity);
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if (type == SUBDIV)
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return render_csg_term_from_nef(m, highlights, background, "subdiv", this->convexity);
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return NULL;
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}
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#else // ENABLE_CGAL
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CSGTerm *CgaladvNode::render_csg_term(double m[20], QVector<CSGTerm*> *highlights, QVector<CSGTerm*> *background) const
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{
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PRINT("WARNING: Found minkowski(), glide() or subdiv() statement but compiled without CGAL support!");
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return NULL;
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}
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#endif // ENABLE_CGAL
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QString CgaladvNode::dump(QString indent) const
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{
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if (dump_cache.isEmpty()) {
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QString text;
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if (type == MINKOWSKI)
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text.sprintf("minkowski(convexity = %d) {\n", this->convexity);
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if (type == GLIDE) {
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text.sprintf(", convexity = %d) {\n", this->convexity);
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text = QString("glide(path = ") + this->path.dump() + text;
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}
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if (type == SUBDIV)
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text.sprintf("subdiv(level = %d, convexity = %d) {\n", this->level, this->convexity);
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foreach (AbstractNode *v, this->children)
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text += v->dump(indent + QString("\t"));
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text += indent + "}\n";
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((AbstractNode*)this)->dump_cache = indent + QString("n%1: ").arg(idx) + text;
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}
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return dump_cache;
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}
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@ -210,7 +210,7 @@ static void add_slice(PolySet *ps, DxfData::Path *pt, double rot1, double rot2,
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}
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}
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PolySet *DxfLinearExtrudeNode::render_polyset(render_mode_e rm) const
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PolySet *DxfLinearExtrudeNode::render_polyset(render_mode_e) const
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{
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QString key = mk_cache_id();
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if (PolySet::ps_cache.contains(key)) {
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@ -113,7 +113,7 @@ void register_builtin_dxf_rotate_extrude()
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builtin_modules["rotate_extrude"] = new DxfRotateExtrudeModule();
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}
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PolySet *DxfRotateExtrudeNode::render_polyset(render_mode_e rm) const
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PolySet *DxfRotateExtrudeNode::render_polyset(render_mode_e) const
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{
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QString key = mk_cache_id();
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if (PolySet::ps_cache.contains(key)) {
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@ -206,6 +206,7 @@ void initialize_builtin_modules()
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register_builtin_render();
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register_builtin_import();
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register_builtin_projection();
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register_builtin_cgaladv();
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register_builtin_dxf_linear_extrude();
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register_builtin_dxf_rotate_extrude();
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}
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@ -42,6 +42,7 @@ public:
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};
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static QCache<QString, cgal_nef_cache_entry> cgal_nef_cache;
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virtual CGAL_Nef_polyhedron render_cgal_nef_polyhedron() const;
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class CSGTerm *render_csg_term_from_nef(double m[20], QVector<CSGTerm*> *highlights, QVector<CSGTerm*> *background, const char *statement, int convexity) const;
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#endif
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virtual class CSGTerm *render_csg_term(double m[20], QVector<CSGTerm*> *highlights, QVector<CSGTerm*> *background) const;
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virtual QString dump(QString indent) const;
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@ -96,7 +96,7 @@ void register_builtin_projection()
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#ifdef ENABLE_CGAL
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PolySet *ProjectionNode::render_polyset(render_mode_e rm) const
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PolySet *ProjectionNode::render_polyset(render_mode_e) const
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{
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QString key = mk_cache_id();
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if (PolySet::ps_cache.contains(key)) {
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@ -125,7 +125,7 @@ CGAL_Nef_polyhedron RenderNode::render_cgal_nef_polyhedron() const
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return N;
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}
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CSGTerm *RenderNode::render_csg_term(double m[20], QVector<CSGTerm*> *highlights, QVector<CSGTerm*> *background) const
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CSGTerm *AbstractNode::render_csg_term_from_nef(double m[20], QVector<CSGTerm*> *highlights, QVector<CSGTerm*> *background, const char *statement, int convexity) const
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{
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QString key = mk_cache_id();
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if (PolySet::ps_cache.contains(key)) {
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}
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else
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{
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PRINT_NOCACHE("Processing uncached render statement...");
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PRINTF_NOCACHE("Processing uncached %s statement...", statement);
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// PRINTA("Cache ID: %1", cache_id);
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QApplication::processEvents();
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if (N.dim == 3)
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{
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if (!N.p3.is_simple()) {
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PRINTF("WARNING: Result of render() isn't valid 2-manifold! Modify your design..");
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PRINTF("WARNING: Result of %s() isn't valid 2-manifold! Modify your design..", statement);
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return NULL;
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}
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return NULL;
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}
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CSGTerm *RenderNode::render_csg_term(double m[20], QVector<CSGTerm*> *highlights, QVector<CSGTerm*> *background) const
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{
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return render_csg_term_from_nef(m, highlights, background, "render", this->convexity);
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}
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#else
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CSGTerm *RenderNode::render_csg_term(double m[20], QVector<CSGTerm*> *highlights, QVector<CSGTerm*> *background) const
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