Glassvision/IfcOpenShell
1
0
Fork 0
mirror of https://github.com/IfcOpenShell/IfcOpenShell.git synced 2026-08-10 17:58:20 +00:00
Code Issues Packages Projects Releases Wiki Activity

IfcRightCircularCone

Browse Source
This commit is contained in:
Ken Arroyo Ohori
2017-03-02 18:42:10 -06:00
parent bece7053a0
commit 302e7b2db8
2 changed files with 51 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/ifcgeom/kernels/cgal/CgalEntityMapping.h
+1
View File
@@ -44,6 +44,7 @@ SHAPE(IfcBooleanResult);
SHAPE(IfcSphere);
SHAPE(IfcRectangularPyramid);
SHAPE(IfcRightCircularCylinder);
SHAPE(IfcRightCircularCone);
FACE(IfcArbitraryClosedProfileDef);
FACE(IfcFace);
src/ifcgeom/kernels/cgal/CgalIfcGeomShapes.cpp
+50
View File
@@ -622,3 +622,53 @@ bool IfcGeom::CgalKernel::convert(const IfcSchema::IfcRightCircularCylinder* l,
shape = polyhedron;
return true;
}
bool IfcGeom::CgalKernel::convert(const IfcSchema::IfcRightCircularCone* l, cgal_shape_t& shape) {
const double r = l->BottomRadius() * getValue(GV_LENGTH_UNIT);
const double h = l->Height() * getValue(GV_LENGTH_UNIT);
std::list<cgal_face_t> face_list;
const int segments = 10;
// Base
face_list.push_back(cgal_face_t());
for (int current_segment = 0; current_segment < segments; ++current_segment) {
double current_angle = current_segment*3.141592653589793/((double)segments);
face_list.back().outer.push_back(Kernel::Point_3(r*cos(current_angle), r*sin(current_angle), 0));
}
// Side faces
for (int current_segment = 0; current_segment < segments; ++current_segment) {
double current_angle = current_segment*3.141592653589793/((double)segments);
int next_segment = (current_segment+1)%segments;
double next_angle = next_segment*3.141592653589793/((double)segments);
face_list.push_back(cgal_face_t());
face_list.back().outer.push_back(Kernel::Point_3(r*cos(next_angle), r*sin(next_angle), 0));
face_list.back().outer.push_back(Kernel::Point_3(r*cos(current_angle), r*sin(current_angle), 0));
face_list.back().outer.push_back(Kernel::Point_3(0, 0, h));
}
// Naive creation
cgal_shape_t polyhedron = CGAL::Polyhedron_3<Kernel>();
PolyhedronBuilder builder(&face_list);
polyhedron.delegate(builder);
// Stitch edges
// std::cout << "Before: " << polyhedron.size_of_vertices() << " vertices and " << polyhedron.size_of_facets() << " facets" << std::endl;
CGAL::Polygon_mesh_processing::stitch_borders(polyhedron);
if (!CGAL::Polygon_mesh_processing::is_outward_oriented(polyhedron)) {
CGAL::Polygon_mesh_processing::reverse_face_orientations(polyhedron);
}
// std::cout << "After: " << polyhedron.size_of_vertices() << " vertices and " << polyhedron.size_of_facets() << " facets" << std::endl;
cgal_placement_t trsf;
IfcGeom::CgalKernel::convert(l->Position(),trsf);
for (auto &vertex: vertices(polyhedron)) {
vertex->point() = vertex->point().transform(trsf);
}
shape = polyhedron;
return true;
}