mirror of
https://github.com/IfcOpenShell/IfcOpenShell.git
synced 2026-08-11 18:16:40 +00:00
Thomas Krijnen
304 lines
12 KiB
C++
304 lines
12 KiB
C++
/********************************************************************************
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* *
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* This file is part of IfcOpenShell. *
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* *
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* IfcOpenShell is free software: you can redistribute it and/or modify *
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* it under the terms of the Lesser GNU General Public License as published by *
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* the Free Software Foundation, either version 3.0 of the License, or *
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* (at your option) any later version. *
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* *
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* IfcOpenShell 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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* Lesser GNU General Public License for more details. *
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* *
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* You should have received a copy of the Lesser GNU General Public License *
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* along with this program. If not, see <http://www.gnu.org/licenses/>. *
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* *
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********************************************************************************/
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/********************************************************************************
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* *
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* Implementations of the various conversion functions defined in IfcRegister.h *
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* *
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********************************************************************************/
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#include <gp_Pnt.hxx>
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#include <gp_Vec.hxx>
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#include <gp_Dir.hxx>
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#include <gp_Pnt2d.hxx>
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#include <gp_Vec2d.hxx>
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#include <gp_Dir2d.hxx>
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#include <gp_Mat.hxx>
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#include <gp_Mat2d.hxx>
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#include <gp_GTrsf.hxx>
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#include <gp_GTrsf2d.hxx>
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#include <gp_Trsf.hxx>
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#include <gp_Trsf2d.hxx>
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#include <gp_Ax3.hxx>
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#include <gp_Ax2d.hxx>
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#include <gp_Pln.hxx>
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#include <gp_Circ.hxx>
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#include <TColgp_Array1OfPnt.hxx>
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#include <TColgp_Array1OfPnt2d.hxx>
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#include <TColStd_Array1OfReal.hxx>
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#include <TColStd_Array1OfInteger.hxx>
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#include <Geom_Line.hxx>
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#include <Geom_Circle.hxx>
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#include <Geom_Ellipse.hxx>
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#include <Geom_TrimmedCurve.hxx>
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#include <BRepOffsetAPI_Sewing.hxx>
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#include <BRepBuilderAPI_MakeFace.hxx>
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#include <BRepBuilderAPI_MakeEdge.hxx>
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#include <BRepBuilderAPI_MakeWire.hxx>
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#include <BRepBuilderAPI_MakePolygon.hxx>
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#include <BRepBuilderAPI_MakeVertex.hxx>
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#include <TopoDS.hxx>
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#include <TopoDS_Wire.hxx>
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#include <TopoDS_Face.hxx>
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#include <TopExp_Explorer.hxx>
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#include <BRepPrimAPI_MakePrism.hxx>
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#include <BRepBuilderAPI_MakeShell.hxx>
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#include <BRepBuilderAPI_MakeSolid.hxx>
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#include <BRepPrimAPI_MakeHalfSpace.hxx>
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#include <BRepAlgoAPI_Cut.hxx>
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#include <ShapeFix_Shape.hxx>
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#include <ShapeFix_ShapeTolerance.hxx>
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#include <ShapeFix_Solid.hxx>
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#include <TopLoc_Location.hxx>
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#include <BRepCheck_Analyzer.hxx>
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#include <BRepAlgoAPI_Common.hxx>
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#include "../ifcgeom/IfcGeom.h"
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bool IfcGeom::convert(const IfcSchema::IfcExtrudedAreaSolid::ptr l, TopoDS_Shape& shape) {
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TopoDS_Face face;
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if ( ! IfcGeom::convert_face(l->SweptArea(),face) ) return false;
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const double height = l->Depth() * IfcGeom::GetValue(GV_LENGTH_UNIT);
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gp_Trsf trsf;
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IfcGeom::convert(l->Position(),trsf);
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gp_Dir dir;
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convert(l->ExtrudedDirection(),dir);
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shape = BRepPrimAPI_MakePrism(face,height*dir);
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shape.Move(trsf);
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return ! shape.IsNull();
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}
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bool IfcGeom::convert(const IfcSchema::IfcFacetedBrep::ptr l, IfcRepresentationShapeItems& shape) {
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TopoDS_Shape s;
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if (IfcGeom::convert_shape(l->Outer(),s) ) {
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shape.push_back(IfcRepresentationShapeItem(s, get_style(l->Outer())));
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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 IfcGeom::convert(const IfcSchema::IfcFaceBasedSurfaceModel::ptr l, IfcRepresentationShapeItems& shapes) {
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IfcSchema::IfcConnectedFaceSet::list facesets = l->FbsmFaces();
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const SurfaceStyle* collective_style = get_style(l);
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for( IfcSchema::IfcConnectedFaceSet::it it = facesets->begin(); it != facesets->end(); ++ it ) {
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TopoDS_Shape s;
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const SurfaceStyle* shell_style = get_style(*it);
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if (IfcGeom::convert_shape(*it,s)) {
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shapes.push_back(IfcRepresentationShapeItem(s, shell_style ? shell_style : collective_style));
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}
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}
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return true;
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}
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bool IfcGeom::convert(const IfcSchema::IfcHalfSpaceSolid::ptr l, TopoDS_Shape& shape) {
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IfcSchema::IfcSurface::ptr surface = l->BaseSurface();
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if ( ! surface->is(IfcSchema::Type::IfcPlane) ) {
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// Not implemented
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return false;
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}
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gp_Pln pln;
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IfcGeom::convert(reinterpret_pointer_cast<IfcSchema::IfcSurface,IfcSchema::IfcPlane>(surface),pln);
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const gp_Pnt pnt = pln.Location().Translated( l->AgreementFlag() ? -pln.Axis().Direction() : pln.Axis().Direction());
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shape = BRepPrimAPI_MakeHalfSpace(BRepBuilderAPI_MakeFace(pln),pnt).Solid();
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return true;
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}
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bool IfcGeom::convert(const IfcSchema::IfcPolygonalBoundedHalfSpace::ptr l, TopoDS_Shape& shape) {
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TopoDS_Shape halfspace;
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if ( ! IfcGeom::convert(reinterpret_pointer_cast<IfcSchema::IfcPolygonalBoundedHalfSpace,IfcSchema::IfcHalfSpaceSolid>(l),halfspace) ) return false;
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TopoDS_Wire wire;
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if ( ! IfcGeom::convert_wire(l->PolygonalBoundary(),wire) || ! wire.Closed() ) return false;
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gp_Trsf trsf;
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convert(l->Position(),trsf);
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TopoDS_Shape prism = BRepPrimAPI_MakePrism(BRepBuilderAPI_MakeFace(wire),gp_Vec(0,0,200));
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gp_Trsf down; down.SetTranslation(gp_Vec(0,0,-100.0));
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prism.Move(trsf*down);
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shape = BRepAlgoAPI_Common(halfspace,prism);
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return true;
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}
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bool IfcGeom::convert(const IfcSchema::IfcShellBasedSurfaceModel::ptr l, IfcRepresentationShapeItems& shapes) {
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IfcUtil::IfcAbstractSelect::list shells = l->SbsmBoundary();
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const SurfaceStyle* collective_style = get_style(l);
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for( IfcUtil::IfcAbstractSelect::it it = shells->begin(); it != shells->end(); ++ it ) {
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TopoDS_Shape s;
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const SurfaceStyle* shell_style = 0;
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if ((*it)->is(IfcSchema::Type::IfcRepresentationItem)) {
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shell_style = get_style((IfcSchema::IfcRepresentationItem*)*it);
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}
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if (IfcGeom::convert_shape(*it,s)) {
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shapes.push_back(IfcRepresentationShapeItem(s, shell_style ? shell_style : collective_style));
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}
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}
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return true;
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}
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bool IfcGeom::convert(const IfcSchema::IfcBooleanClippingResult::ptr l, TopoDS_Shape& shape) {
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TopoDS_Shape s1, s2;
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TopoDS_Wire boundary_wire;
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IfcSchema::IfcBooleanOperand operand1 = l->FirstOperand();
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IfcSchema::IfcBooleanOperand operand2 = l->SecondOperand();
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bool is_halfspace = operand2->is(IfcSchema::Type::IfcHalfSpaceSolid);
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if ( ! IfcGeom::convert_shape(operand1,s1) )
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return false;
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const double first_operand_volume = shape_volume(s1);
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if ( first_operand_volume <= ALMOST_ZERO )
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Logger::Message(Logger::LOG_WARNING,"Empty solid for:",l->FirstOperand()->entity);
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if ( !IfcGeom::convert_shape(l->SecondOperand(),s2) ) {
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shape = s1;
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Logger::Message(Logger::LOG_ERROR,"Failed to convert SecondOperand of:",l->entity);
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return true;
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}
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if ( ! is_halfspace ) {
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const double second_operand_volume = shape_volume(s2);
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if ( second_operand_volume <= ALMOST_ZERO )
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Logger::Message(Logger::LOG_WARNING,"Empty solid for:",operand2->entity);
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}
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bool valid_cut = false;
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BRepAlgoAPI_Cut brep_cut(s1,s2);
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if ( brep_cut.IsDone() ) {
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TopoDS_Shape result = brep_cut;
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ShapeFix_Shape fix(result);
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fix.Perform();
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result = fix.Shape();
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bool is_valid = BRepCheck_Analyzer(result).IsValid() != 0;
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if ( is_valid ) {
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shape = result;
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valid_cut = true;
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}
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}
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if ( valid_cut ) {
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const double volume_after_subtraction = shape_volume(shape);
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if ( ALMOST_THE_SAME(first_operand_volume,volume_after_subtraction) )
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Logger::Message(Logger::LOG_WARNING,"Subtraction yields unchanged volume:",l->entity);
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} else {
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Logger::Message(Logger::LOG_ERROR,"Failed to process subtraction:",l->entity);
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shape = s1;
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}
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return true;
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}
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bool IfcGeom::convert(const IfcSchema::IfcConnectedFaceSet::ptr l, TopoDS_Shape& shape) {
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IfcSchema::IfcFace::list faces = l->CfsFaces();
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bool facesAdded = false;
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const unsigned int num_faces = faces->Size();
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if ( num_faces < GetValue(GV_MAX_FACES_TO_SEW) ) {
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BRepOffsetAPI_Sewing builder;
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builder.SetTolerance(GetValue(GV_POINT_EQUALITY_TOLERANCE));
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builder.SetMaxTolerance(GetValue(GV_POINT_EQUALITY_TOLERANCE));
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builder.SetMinTolerance(GetValue(GV_POINT_EQUALITY_TOLERANCE));
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for( IfcSchema::IfcFace::it it = faces->begin(); it != faces->end(); ++ it ) {
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TopoDS_Face face;
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if ( IfcGeom::convert_face(*it,face) && face_area(face) > GetValue(GV_MINIMAL_FACE_AREA) ) {
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builder.Add(face);
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facesAdded = true;
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} else {
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Logger::Message(Logger::LOG_WARNING,"Invalid face:",(*it)->entity);
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}
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}
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if ( ! facesAdded ) return false;
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builder.Perform();
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shape = builder.SewedShape();
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try {
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ShapeFix_Solid solid;
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solid.LimitTolerance(GetValue(GV_POINT_EQUALITY_TOLERANCE));
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shape = solid.SolidFromShell(TopoDS::Shell(shape));
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} catch(...) {}
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} else {
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TopoDS_Compound compound;
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BRep_Builder builder;
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builder.MakeCompound(compound);
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for( IfcSchema::IfcFace::it it = faces->begin(); it != faces->end(); ++ it ) {
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TopoDS_Face face;
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if ( IfcGeom::convert_face(*it,face) && face_area(face) > GetValue(GV_MINIMAL_FACE_AREA) ) {
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builder.Add(compound,face);
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facesAdded = true;
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} else {
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Logger::Message(Logger::LOG_WARNING,"Invalid face:",(*it)->entity);
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}
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}
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if ( ! facesAdded ) return false;
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shape = compound;
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}
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return true;
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}
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bool IfcGeom::convert(const IfcSchema::IfcMappedItem::ptr l, IfcRepresentationShapeItems& shapes) {
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gp_GTrsf gtrsf;
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IfcSchema::IfcCartesianTransformationOperator::ptr transform = l->MappingTarget();
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if ( transform->is(IfcSchema::Type::IfcCartesianTransformationOperator3DnonUniform) ) {
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IfcGeom::convert(reinterpret_pointer_cast<IfcSchema::IfcCartesianTransformationOperator,
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IfcSchema::IfcCartesianTransformationOperator3DnonUniform>(transform),gtrsf);
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} else if ( transform->is(IfcSchema::Type::IfcCartesianTransformationOperator2DnonUniform) ) {
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return false;
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} else if ( transform->is(IfcSchema::Type::IfcCartesianTransformationOperator3D) ) {
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gp_Trsf trsf;
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IfcGeom::convert(reinterpret_pointer_cast<IfcSchema::IfcCartesianTransformationOperator,
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IfcSchema::IfcCartesianTransformationOperator3D>(transform),trsf);
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gtrsf = trsf;
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} else if ( transform->is(IfcSchema::Type::IfcCartesianTransformationOperator2D) ) {
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gp_Trsf2d trsf_2d;
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IfcGeom::convert(reinterpret_pointer_cast<IfcSchema::IfcCartesianTransformationOperator,
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IfcSchema::IfcCartesianTransformationOperator2D>(transform),trsf_2d);
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gtrsf = (gp_Trsf) trsf_2d;
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}
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IfcSchema::IfcRepresentationMap::ptr map = l->MappingSource();
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IfcSchema::IfcAxis2Placement placement = map->MappingOrigin();
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gp_Trsf trsf;
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if (placement->is(IfcSchema::Type::IfcAxis2Placement3D)) {
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IfcGeom::convert((IfcSchema::IfcAxis2Placement3D*)placement,trsf);
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} else {
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gp_Trsf2d trsf_2d;
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IfcGeom::convert((IfcSchema::IfcAxis2Placement2D*)placement,trsf_2d);
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trsf = trsf_2d;
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}
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gtrsf.Multiply(trsf);
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const unsigned int previous_size = (const unsigned int) shapes.size();
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bool b = IfcGeom::convert_shapes(map->MappedRepresentation(),shapes);
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for ( unsigned int i = previous_size; i < shapes.size(); ++ i ) {
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shapes[i].append(gtrsf);
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}
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return b;
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}
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bool IfcGeom::convert(const IfcSchema::IfcShapeRepresentation::ptr l, IfcRepresentationShapeItems& shapes) {
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IfcSchema::IfcRepresentationItem::list items = l->Items();
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if ( ! items->Size() ) return false;
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for ( IfcSchema::IfcRepresentationItem::it it = items->begin(); it != items->end(); ++ it ) {
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IfcSchema::IfcRepresentationItem* representation_item = *it;
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if ( IfcGeom::is_shape_collection(representation_item) ) IfcGeom::convert_shapes(*it,shapes);
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else {
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TopoDS_Shape s;
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if (IfcGeom::convert_shape(representation_item,s)) {
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shapes.push_back(IfcRepresentationShapeItem(s, get_style(representation_item)));
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}
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}
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}
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return true;
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} |