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Boolean ops working?

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This commit is contained in:
Ken Arroyo Ohori
2017-03-03 13:56:08 -06:00
parent efb8bce25a
commit bbe0b74f83
1 changed files with 74 additions and 23 deletions
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src/ifcgeom/kernels/cgal/CgalIfcGeomShapes.cpp
+74 -23
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@@ -339,18 +339,18 @@ bool IfcGeom::CgalKernel::convert(const IfcSchema::IfcBooleanResult* l, cgal_sha
return false; return false;
} }
std::ofstream f1; // std::ofstream f1;
f1.open("/Users/ken/Desktop/s1.off"); // f1.open("/Users/ken/Desktop/s1.off");
f1 << s1 << std::endl; // f1 << s1 << std::endl;
f1.close(); // f1.close();
std::ofstream f2; // std::ofstream f2;
f2.open("/Users/ken/Desktop/s2.off"); // f2.open("/Users/ken/Desktop/s2.off");
f2 << s2 << std::endl; // f2 << s2 << std::endl;
f2.close(); // f2.close();
if (op == IfcSchema::IfcBooleanOperator::IfcBooleanOperator_DIFFERENCE) { if (op == IfcSchema::IfcBooleanOperator::IfcBooleanOperator_DIFFERENCE) {
std::cout << "Difference" << std::endl; // std::cout << "Difference" << std::endl;
CGAL::Nef_polyhedron_3<Kernel> nef_result = nef1-nef2; CGAL::Nef_polyhedron_3<Kernel> nef_result = nef1-nef2;
if (!nef_result.is_simple()) { if (!nef_result.is_simple()) {
std::cout << "Not simple: " << nef_result.number_of_volumes() << " volumes" << std::endl; std::cout << "Not simple: " << nef_result.number_of_volumes() << " volumes" << std::endl;
@@ -358,16 +358,16 @@ bool IfcGeom::CgalKernel::convert(const IfcSchema::IfcBooleanResult* l, cgal_sha
} }
cgal_shape_t result; cgal_shape_t result;
nef_result.convert_to_polyhedron(result); nef_result.convert_to_polyhedron(result);
std::ofstream fresult; // std::ofstream fresult;
fresult.open("/Users/ken/Desktop/result.off"); // fresult.open("/Users/ken/Desktop/result.off");
fresult << result << std::endl; // fresult << result << std::endl;
fresult.close(); // fresult.close();
shape = result; shape = result;
return true; return true;
} else if (op == IfcSchema::IfcBooleanOperator::IfcBooleanOperator_UNION) { } else if (op == IfcSchema::IfcBooleanOperator::IfcBooleanOperator_UNION) {
std::cout << "Union" << std::endl; // std::cout << "Union" << std::endl;
CGAL::Nef_polyhedron_3<Kernel> nef_result = nef1+nef2; CGAL::Nef_polyhedron_3<Kernel> nef_result = nef1+nef2;
if (!nef_result.is_simple()) { if (!nef_result.is_simple()) {
std::cout << "Not simple: " << nef_result.number_of_volumes() << " volumes" << std::endl; std::cout << "Not simple: " << nef_result.number_of_volumes() << " volumes" << std::endl;
@@ -375,16 +375,16 @@ bool IfcGeom::CgalKernel::convert(const IfcSchema::IfcBooleanResult* l, cgal_sha
} }
cgal_shape_t result; cgal_shape_t result;
nef_result.convert_to_polyhedron(result); nef_result.convert_to_polyhedron(result);
std::ofstream fresult; // std::ofstream fresult;
fresult.open("/Users/ken/Desktop/result.off"); // fresult.open("/Users/ken/Desktop/result.off");
fresult << result << std::endl; // fresult << result << std::endl;
fresult.close(); // fresult.close();
shape = result; shape = result;
return true; return true;
} else if (op == IfcSchema::IfcBooleanOperator::IfcBooleanOperator_INTERSECTION) { } else if (op == IfcSchema::IfcBooleanOperator::IfcBooleanOperator_INTERSECTION) {
std::cout << "Intersection" << std::endl; // std::cout << "Intersection" << std::endl;
CGAL::Nef_polyhedron_3<Kernel> nef_result = nef1*nef2; CGAL::Nef_polyhedron_3<Kernel> nef_result = nef1*nef2;
if (!nef_result.is_simple()) { if (!nef_result.is_simple()) {
std::cout << "Not simple: " << nef_result.number_of_volumes() << " volumes" << std::endl; std::cout << "Not simple: " << nef_result.number_of_volumes() << " volumes" << std::endl;
@@ -392,10 +392,10 @@ bool IfcGeom::CgalKernel::convert(const IfcSchema::IfcBooleanResult* l, cgal_sha
} }
cgal_shape_t result; cgal_shape_t result;
nef_result.convert_to_polyhedron(result); nef_result.convert_to_polyhedron(result);
std::ofstream fresult; // std::ofstream fresult;
fresult.open("/Users/ken/Desktop/result.off"); // fresult.open("/Users/ken/Desktop/result.off");
fresult << result << std::endl; // fresult << result << std::endl;
fresult.close(); // fresult.close();
shape = result; shape = result;
return true; return true;
@@ -527,12 +527,63 @@ bool IfcGeom::CgalKernel::convert(const IfcSchema::IfcSphere* l, cgal_shape_t& s
face_list.back().outer.push_back(icosahedron_vertices[1]); face_list.back().outer.push_back(icosahedron_vertices[1]);
// TODO: Refine icosahedron to create icosphere // TODO: Refine icosahedron to create icosphere
const unsigned int refinements = 3;
for (unsigned int current_refinement = 0; current_refinement < refinements; ++current_refinement) {
std::list<cgal_face_t> refined_face_list;
for (auto &face: face_list) {
Kernel::Point_3 vertex0 = face.outer[0];
Kernel::Point_3 vertex1 = face.outer[1];
Kernel::Point_3 vertex2 = face.outer[2];
Kernel::Point_3 midpoint01 = CGAL::midpoint(vertex0, vertex1);
Kernel::Point_3 midpoint12 = CGAL::midpoint(vertex1, vertex2);
Kernel::Point_3 midpoint20 = CGAL::midpoint(vertex2, vertex0);
double midpoint01_distance_to_origin = sqrt(CGAL::to_double(CGAL::squared_distance(midpoint01, Kernel::Point_3(0, 0, 0))));
midpoint01 = Kernel::Point_3(midpoint01.x()/midpoint01_distance_to_origin,
midpoint01.y()/midpoint01_distance_to_origin,
midpoint01.z()/midpoint01_distance_to_origin);
double midpoint12_distance_to_origin = sqrt(CGAL::to_double(CGAL::squared_distance(midpoint12, Kernel::Point_3(0, 0, 0))));
midpoint12 = Kernel::Point_3(midpoint12.x()/midpoint12_distance_to_origin,
midpoint12.y()/midpoint12_distance_to_origin,
midpoint12.z()/midpoint12_distance_to_origin);
double midpoint20_distance_to_origin = sqrt(CGAL::to_double(CGAL::squared_distance(midpoint20, Kernel::Point_3(0, 0, 0))));
midpoint20 = Kernel::Point_3(midpoint20.x()/midpoint20_distance_to_origin,
midpoint20.y()/midpoint20_distance_to_origin,
midpoint20.z()/midpoint20_distance_to_origin);
refined_face_list.push_back(cgal_face_t());
refined_face_list.back().outer.push_back(vertex0);
refined_face_list.back().outer.push_back(midpoint01);
refined_face_list.back().outer.push_back(midpoint20);
refined_face_list.push_back(cgal_face_t());
refined_face_list.back().outer.push_back(vertex1);
refined_face_list.back().outer.push_back(midpoint12);
refined_face_list.back().outer.push_back(midpoint01);
refined_face_list.push_back(cgal_face_t());
refined_face_list.back().outer.push_back(vertex2);
refined_face_list.back().outer.push_back(midpoint20);
refined_face_list.back().outer.push_back(midpoint12);
refined_face_list.push_back(cgal_face_t());
refined_face_list.back().outer.push_back(midpoint01);
refined_face_list.back().outer.push_back(midpoint12);
refined_face_list.back().outer.push_back(midpoint20);
} face_list = refined_face_list;
}
// Naive creation // Naive creation
cgal_shape_t polyhedron = CGAL::Polyhedron_3<Kernel>(); cgal_shape_t polyhedron = CGAL::Polyhedron_3<Kernel>();
PolyhedronBuilder builder(&face_list); PolyhedronBuilder builder(&face_list);
polyhedron.delegate(builder); polyhedron.delegate(builder);
// std::ofstream fresult;
// fresult.open("/Users/ken/Desktop/sphere.off");
// fresult << polyhedron << std::endl;
// fresult.close();
// Stitch edges // Stitch edges
// std::cout << "Before: " << polyhedron.size_of_vertices() << " vertices and " << polyhedron.size_of_facets() << " facets" << std::endl; // std::cout << "Before: " << polyhedron.size_of_vertices() << " vertices and " << polyhedron.size_of_facets() << " facets" << std::endl;
CGAL::Polygon_mesh_processing::stitch_borders(polyhedron); CGAL::Polygon_mesh_processing::stitch_borders(polyhedron);