mirror of https://github.com/vitalif/openscad
131 lines
3.4 KiB
C++
131 lines
3.4 KiB
C++
#include "CGAL_Nef_polyhedron.h"
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#include "cgal.h"
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#include "cgalutils.h"
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#include "printutils.h"
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#include "polyset.h"
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#include "dxfdata.h"
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#include "dxftess.h"
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CGAL_Nef_polyhedron::CGAL_Nef_polyhedron(CGAL_Nef_polyhedron2 *p)
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{
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if (p) {
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dim = 2;
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p2.reset(p);
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}
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else {
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dim = 0;
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}
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}
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CGAL_Nef_polyhedron::CGAL_Nef_polyhedron(CGAL_Nef_polyhedron3 *p)
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{
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if (p) {
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dim = 3;
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p3.reset(p);
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}
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else {
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dim = 0;
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}
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}
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CGAL_Nef_polyhedron& CGAL_Nef_polyhedron::operator+=(const CGAL_Nef_polyhedron &other)
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{
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if (this->dim == 2) (*this->p2) += (*other.p2);
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else if (this->dim == 3) (*this->p3) += (*other.p3);
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return *this;
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}
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CGAL_Nef_polyhedron& CGAL_Nef_polyhedron::operator*=(const CGAL_Nef_polyhedron &other)
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{
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if (this->dim == 2) (*this->p2) *= (*other.p2);
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else if (this->dim == 3) (*this->p3) *= (*other.p3);
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return *this;
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}
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CGAL_Nef_polyhedron& CGAL_Nef_polyhedron::operator-=(const CGAL_Nef_polyhedron &other)
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{
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if (this->dim == 2) (*this->p2) -= (*other.p2);
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else if (this->dim == 3) (*this->p3) -= (*other.p3);
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return *this;
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}
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extern CGAL_Nef_polyhedron2 minkowski2(const CGAL_Nef_polyhedron2 &a, const CGAL_Nef_polyhedron2 &b);
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CGAL_Nef_polyhedron &CGAL_Nef_polyhedron::minkowski(const CGAL_Nef_polyhedron &other)
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{
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if (this->dim == 2) (*this->p2) = minkowski2(*this->p2, *other.p2);
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else if (this->dim == 3) (*this->p3) = CGAL::minkowski_sum_3(*this->p3, *other.p3);
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return *this;
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}
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int CGAL_Nef_polyhedron::weight() const
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{
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if (this->isNull()) return 0;
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size_t memsize = sizeof(CGAL_Nef_polyhedron);
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if (this->dim == 2) {
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memsize += sizeof(CGAL_Nef_polyhedron2) +
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this->p2->explorer().number_of_vertices() * sizeof(CGAL_Nef_polyhedron2::Explorer::Vertex) +
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this->p2->explorer().number_of_halfedges() * sizeof(CGAL_Nef_polyhedron2::Explorer::Halfedge) +
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this->p2->explorer().number_of_edges() * sizeof(CGAL_Nef_polyhedron2::Explorer::Face);
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}
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if (this->dim == 3) memsize += this->p3->bytes();
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return memsize;
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}
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/*!
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Creates a new PolySet and initializes it with the data from this polyhedron
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This method is not const since convert_to_Polyhedron() wasn't const
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in earlier versions of CGAL.
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Note: Can return NULL if an error occurred
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*/
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PolySet *CGAL_Nef_polyhedron::convertToPolyset()
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{
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if (this->isNull()) return new PolySet();
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PolySet *ps = NULL;
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if (this->dim == 2) {
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ps = new PolySet();
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DxfData *dd = this->convertToDxfData();
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ps->is2d = true;
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dxf_tesselate(ps, *dd, 0, Vector2d(1,1), true, false, 0);
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dxf_border_to_ps(ps, *dd);
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delete dd;
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}
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else if (this->dim == 3) {
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CGAL::Failure_behaviour old_behaviour = CGAL::set_error_behaviour(CGAL::THROW_EXCEPTION);
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bool err = true;
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std::string errmsg("");
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CGAL_Polyhedron P;
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try {
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err = nefworkaround::convert_to_Polyhedron<CGAL_Kernel3>( *(this->p3), P );
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//this->p3->convert_to_Polyhedron(P);
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}
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catch (const CGAL::Failure_exception &e) {
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err = true;
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errmsg = std::string(e.what());
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}
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if (err) {
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PRINT("ERROR: CGAL NefPolyhedron->Polyhedron conversion failed.");
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if (errmsg!="") PRINTB("ERROR: %s",errmsg);
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} else {
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ps = createPolySetFromPolyhedron(P);
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}
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CGAL::set_error_behaviour(old_behaviour);
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}
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return ps;
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}
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/*!
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Deep copy
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*/
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CGAL_Nef_polyhedron CGAL_Nef_polyhedron::copy() const
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{
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CGAL_Nef_polyhedron copy = *this;
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if (copy.p2) copy.p2.reset(new CGAL_Nef_polyhedron2(*copy.p2));
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else if (copy.p3) copy.p3.reset(new CGAL_Nef_polyhedron3(*copy.p3));
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return copy;
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}
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