mirror of
https://github.com/IfcOpenShell/IfcOpenShell.git
synced 2026-08-10 17:58:20 +00:00
1127 lines
36 KiB
C++
1127 lines
36 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_Ax1.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 <Geom_CylindricalSurface.hxx>
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#include <BRepOffsetAPI_Sewing.hxx>
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#include <BRepOffsetAPI_MakePipe.hxx>
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#include <BRepOffsetAPI_MakePipeShell.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 <TopoDS_CompSolid.hxx>
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#include <TopExp.hxx>
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#include <TopExp_Explorer.hxx>
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#include <BRepPrimAPI_MakePrism.hxx>
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#include <BRepPrimAPI_MakeRevol.hxx>
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#include <BRepPrimAPI_MakeBox.hxx>
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#include <BRepPrimAPI_MakeCone.hxx>
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#include <BRepPrimAPI_MakeCylinder.hxx>
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#include <BRepPrimAPI_MakeSphere.hxx>
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#include <BRepPrimAPI_MakeWedge.hxx>
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#include <BRepBuilderAPI_MakePolygon.hxx>
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#include <BRepBuilderAPI_Transform.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 <BRepAlgoAPI_Fuse.hxx>
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#include <BRepAlgoAPI_Common.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 <BRepClass3d_SolidClassifier.hxx>
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#include <Standard_Version.hxx>
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#include <TopTools_ListIteratorOfListOfShape.hxx>
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#include "../ifcgeom/IfcGeom.h"
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bool IfcGeom::Kernel::convert(const IfcSchema::IfcExtrudedAreaSolid* l, TopoDS_Shape& shape) {
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const double height = l->Depth() * getValue(GV_LENGTH_UNIT);
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if (height < getValue(GV_PRECISION)) {
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Logger::Message(Logger::LOG_ERROR, "Non-positive extrusion height encountered for:", l->entity);
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return false;
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}
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TopoDS_Shape face;
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if ( !convert_face(l->SweptArea(),face) ) return false;
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gp_Trsf trsf;
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bool has_position = true;
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#ifdef USE_IFC4
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has_position = l->hasPosition();
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#endif
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if (has_position) {
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IfcGeom::Kernel::convert(l->Position(), trsf);
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}
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gp_Dir dir;
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convert(l->ExtrudedDirection(),dir);
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shape.Nullify();
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if (face.ShapeType() == TopAbs_COMPOUND) {
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// For compounds (most likely the result of a IfcCompositeProfileDef)
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// create a compound solid shape.
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TopExp_Explorer exp(face, TopAbs_FACE);
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TopoDS_CompSolid compound;
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BRep_Builder builder;
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builder.MakeCompSolid(compound);
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int num_faces_extruded = 0;
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for (; exp.More(); exp.Next(), ++num_faces_extruded) {
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builder.Add(compound, BRepPrimAPI_MakePrism(exp.Current(), height*dir));
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}
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if (num_faces_extruded) {
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shape = compound;
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}
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}
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if (shape.IsNull()) {
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shape = BRepPrimAPI_MakePrism(face, height*dir);
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}
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if (has_position && !shape.IsNull()) {
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// IfcSweptAreaSolid.Position (trsf) is an IfcAxis2Placement3D
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// and therefore has a unit scale factor
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shape.Move(trsf);
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}
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return !shape.IsNull();
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}
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#ifdef USE_IFC4
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bool IfcGeom::Kernel::convert(const IfcSchema::IfcExtrudedAreaSolidTapered* l, TopoDS_Shape& shape) {
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const double height = l->Depth() * getValue(GV_LENGTH_UNIT);
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if (height < getValue(GV_PRECISION)) {
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Logger::Message(Logger::LOG_ERROR, "Non-positive extrusion height encountered for:", l->entity);
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return false;
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}
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TopoDS_Shape face1, face2;
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if (!convert_face(l->SweptArea(), face1)) return false;
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if (!convert_face(l->EndSweptArea(), face2)) return false;
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gp_Trsf trsf;
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bool has_position = true;
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#ifdef USE_IFC4
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has_position = l->hasPosition();
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#endif
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if (has_position) {
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IfcGeom::Kernel::convert(l->Position(), trsf);
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}
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gp_Dir dir;
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convert(l->ExtrudedDirection(), dir);
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gp_Trsf end_profile;
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end_profile.SetTranslation(height * dir);
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TopoDS_Edge spine_edge = BRepBuilderAPI_MakeEdge(gp_Pnt(), gp_Pnt((height * dir).XYZ())).Edge();
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TopoDS_Wire wire = BRepBuilderAPI_MakeWire(spine_edge).Wire();
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shape.Nullify();
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TopExp_Explorer exp1(face1, TopAbs_WIRE);
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TopExp_Explorer exp2(face2, TopAbs_WIRE);
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TopoDS_Vertex v1, v2;
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TopExp::Vertices(wire, v1, v2);
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TopoDS_Shape shell;
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TopoDS_Compound compound;
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BRep_Builder compound_builder;
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for (; exp1.More() && exp2.More(); exp1.Next(), exp2.Next()) {
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const TopoDS_Wire& w1 = TopoDS::Wire(exp1.Current());
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const TopoDS_Wire& w2 = TopoDS::Wire(exp2.Current());
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BRepOffsetAPI_MakePipeShell builder(wire);
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builder.Add(w1, v1);
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builder.Add(w2.Moved(end_profile), v2);
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TopoDS_Shape result = builder.Shape();
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BRepOffsetAPI_Sewing sewer;
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sewer.SetTolerance(getValue(GV_PRECISION));
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sewer.SetMaxTolerance(getValue(GV_PRECISION));
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sewer.SetMinTolerance(getValue(GV_PRECISION));
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sewer.Add(result);
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sewer.Add(BRepBuilderAPI_MakeFace(w1).Face());
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sewer.Add(BRepBuilderAPI_MakeFace(w2).Face().Moved(end_profile));
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sewer.Perform();
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result = sewer.SewedShape();
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if (shell.IsNull()) {
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shell = result;
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} else if (l->SweptArea()->is(IfcSchema::Type::IfcCircleHollowProfileDef) ||
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l->SweptArea()->is(IfcSchema::Type::IfcRectangleHollowProfileDef))
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{
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/// @todo a bit of of a hack, should be sufficient
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shell = BRepAlgoAPI_Cut(shell, result).Shape();
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break;
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} else {
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if (compound.IsNull()) {
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compound_builder.MakeCompound(compound);
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compound_builder.Add(compound, shell);
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}
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compound_builder.Add(compound, result);
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}
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}
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if (!compound.IsNull()) {
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shell = compound;
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}
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shape = shell;
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if (exp1.More() != exp2.More()) {
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Logger::Message(Logger::LOG_ERROR, "Inconsistent profiles encountered for:", l->entity);
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}
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if (has_position && !shape.IsNull()) {
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// IfcSweptAreaSolid.Position (trsf) is an IfcAxis2Placement3D
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// and therefore has a unit scale factor
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shape.Move(trsf);
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}
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return !shape.IsNull();
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}
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#endif
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bool IfcGeom::Kernel::convert(const IfcSchema::IfcSurfaceOfLinearExtrusion* l, TopoDS_Shape& shape) {
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TopoDS_Wire wire;
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if ( !convert_wire(l->SweptCurve(), wire) ) {
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TopoDS_Face face;
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if ( !convert_face(l->SweptCurve(),face) ) return false;
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TopExp_Explorer exp(face, TopAbs_WIRE);
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wire = TopoDS::Wire(exp.Current());
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}
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const double height = l->Depth() * getValue(GV_LENGTH_UNIT);
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gp_Trsf trsf;
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bool has_position = true;
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#ifdef USE_IFC4
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has_position = l->hasPosition();
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#endif
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if (has_position) {
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IfcGeom::Kernel::convert(l->Position(), trsf);
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}
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gp_Dir dir;
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convert(l->ExtrudedDirection(),dir);
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shape = BRepPrimAPI_MakePrism(wire, height*dir);
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if (has_position) {
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// IfcSweptSurface.Position (trsf) is an IfcAxis2Placement3D
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// and therefore has a unit scale factor
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shape.Move(trsf);
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}
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return !shape.IsNull();
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}
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bool IfcGeom::Kernel::convert(const IfcSchema::IfcSurfaceOfRevolution* l, TopoDS_Shape& shape) {
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TopoDS_Wire wire;
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if ( !convert_wire(l->SweptCurve(), wire) ) {
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TopoDS_Face face;
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if ( !convert_face(l->SweptCurve(),face) ) return false;
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TopExp_Explorer exp(face, TopAbs_WIRE);
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wire = TopoDS::Wire(exp.Current());
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}
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gp_Ax1 ax1;
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IfcGeom::Kernel::convert(l->AxisPosition(), ax1);
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gp_Trsf trsf;
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bool has_position = true;
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#ifdef USE_IFC4
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has_position = l->hasPosition();
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#endif
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if (has_position) {
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IfcGeom::Kernel::convert(l->Position(), trsf);
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}
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shape = BRepPrimAPI_MakeRevol(wire, ax1);
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if (has_position) {
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// IfcSweptSurface.Position (trsf) is an IfcAxis2Placement3D
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// and therefore has a unit scale factor
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shape.Move(trsf);
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}
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return !shape.IsNull();
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}
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bool IfcGeom::Kernel::convert(const IfcSchema::IfcRevolvedAreaSolid* l, TopoDS_Shape& shape) {
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const double ang = l->Angle() * getValue(GV_PLANEANGLE_UNIT);
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TopoDS_Face face;
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if ( ! convert_face(l->SweptArea(),face) ) return false;
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gp_Ax1 ax1;
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IfcGeom::Kernel::convert(l->Axis(), ax1);
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gp_Trsf trsf;
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bool has_position = true;
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#ifdef USE_IFC4
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has_position = l->hasPosition();
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#endif
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if (has_position) {
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IfcGeom::Kernel::convert(l->Position(), trsf);
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}
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if (ang >= M_PI * 2. - ALMOST_ZERO) {
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shape = BRepPrimAPI_MakeRevol(face, ax1);
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} else {
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shape = BRepPrimAPI_MakeRevol(face, ax1, ang);
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}
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if (has_position) {
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// IfcSweptAreaSolid.Position (trsf) is an IfcAxis2Placement3D
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// and therefore has a unit scale factor
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shape.Move(trsf);
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}
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return !shape.IsNull();
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}
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bool IfcGeom::Kernel::convert(const IfcSchema::IfcManifoldSolidBrep* l, IfcRepresentationShapeItems& shape) {
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TopoDS_Shape s;
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const SurfaceStyle* collective_style = get_style(l);
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if (convert_shape(l->Outer(),s) ) {
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const SurfaceStyle* indiv_style = get_style(l->Outer());
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IfcSchema::IfcClosedShell::list::ptr voids(new IfcSchema::IfcClosedShell::list);
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if (l->is(IfcSchema::Type::IfcFacetedBrepWithVoids)) {
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voids = l->as<IfcSchema::IfcFacetedBrepWithVoids>()->Voids();
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}
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#ifdef USE_IFC4
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if (l->is(IfcSchema::Type::IfcAdvancedBrepWithVoids)) {
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voids = l->as<IfcSchema::IfcAdvancedBrepWithVoids>()->Voids();
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}
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#endif
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for (IfcSchema::IfcClosedShell::list::it it = voids->begin(); it != voids->end(); ++it) {
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TopoDS_Shape s2;
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/// @todo No extensive shapefixing since shells should be disjoint.
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/// @todo Awaiting generalized boolean ops module with appropriate checking
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if (convert_shape(l->Outer(), s2)) {
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s = BRepAlgoAPI_Cut(s, s2).Shape();
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}
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}
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shape.push_back(IfcRepresentationShapeItem(s, indiv_style ? indiv_style : collective_style));
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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::Kernel::convert(const IfcSchema::IfcFaceBasedSurfaceModel* l, IfcRepresentationShapeItems& shapes) {
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bool part_success = false;
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IfcSchema::IfcConnectedFaceSet::list::ptr facesets = l->FbsmFaces();
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const SurfaceStyle* collective_style = get_style(l);
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for( IfcSchema::IfcConnectedFaceSet::list::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 (convert_shape(*it,s)) {
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shapes.push_back(IfcRepresentationShapeItem(s, shell_style ? shell_style : collective_style));
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part_success |= true;
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}
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}
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return part_success;
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}
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bool IfcGeom::Kernel::convert(const IfcSchema::IfcHalfSpaceSolid* l, TopoDS_Shape& shape) {
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IfcSchema::IfcSurface* surface = l->BaseSurface();
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if ( ! surface->is(IfcSchema::Type::IfcPlane) ) {
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Logger::Message(Logger::LOG_ERROR, "Unsupported BaseSurface:", surface->entity);
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return false;
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}
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gp_Pln pln;
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IfcGeom::Kernel::convert((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::Kernel::convert(const IfcSchema::IfcPolygonalBoundedHalfSpace* l, TopoDS_Shape& shape) {
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TopoDS_Shape halfspace;
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if ( ! IfcGeom::Kernel::convert((IfcSchema::IfcHalfSpaceSolid*)l,halfspace) ) return false;
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TopoDS_Wire wire;
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if ( ! convert_wire(l->PolygonalBoundary(),wire) || ! wire.Closed() ) return false;
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gp_Trsf trsf;
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if ( ! convert(l->Position(),trsf) ) return false;
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TColgp_SequenceOfPnt points;
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if (wire_to_sequence_of_point(wire, points)) {
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// Boolean subtractions not very robust for narrow operands,
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// increase minimal point spacing to eliminate such shapes.
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const double t = getValue(GV_PRECISION) * 10.;
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remove_duplicate_points_from_loop(points, wire.Closed() != 0, t); // Note: wire always closed, as per if statement above
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remove_collinear_points_from_loop(points, wire.Closed() != 0, t);
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if (points.Length() < 3) {
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Logger::Message(Logger::LOG_ERROR, "Not enough points retained from:", l->PolygonalBoundary()->entity);
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return false;
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}
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sequence_of_point_to_wire(points, wire, wire.Closed() != 0);
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}
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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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// `trsf` and `down` both have a unit scale factor
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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::Kernel::convert(const IfcSchema::IfcShellBasedSurfaceModel* l, IfcRepresentationShapeItems& shapes) {
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IfcEntityList::ptr shells = l->SbsmBoundary();
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const SurfaceStyle* collective_style = get_style(l);
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for( IfcEntityList::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 (convert_shape(*it,s)) {
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shapes.push_back(IfcRepresentationShapeItem(s, shell_style ? shell_style : collective_style));
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}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool IfcGeom::Kernel::convert(const IfcSchema::IfcBooleanResult* l, TopoDS_Shape& shape) {
|
|
|
|
TopoDS_Shape s1, s2;
|
|
IfcRepresentationShapeItems items1, items2;
|
|
TopoDS_Wire boundary_wire;
|
|
IfcSchema::IfcBooleanOperand* operand1 = l->FirstOperand();
|
|
IfcSchema::IfcBooleanOperand* operand2 = l->SecondOperand();
|
|
bool is_halfspace = operand2->is(IfcSchema::Type::IfcHalfSpaceSolid);
|
|
|
|
if ( shape_type(operand1) == ST_SHAPELIST ) {
|
|
if (!(convert_shapes(operand1, items1) && flatten_shape_list(items1, s1, true))) {
|
|
return false;
|
|
}
|
|
} else if ( shape_type(operand1) == ST_SHAPE ) {
|
|
if ( ! convert_shape(operand1, s1) ) {
|
|
return false;
|
|
}
|
|
{ TopoDS_Solid temp_solid;
|
|
s1 = ensure_fit_for_subtraction(s1, temp_solid); }
|
|
} else {
|
|
Logger::Message(Logger::LOG_ERROR, "Invalid representation item for boolean operation", operand1->entity);
|
|
return false;
|
|
}
|
|
|
|
const double first_operand_volume = shape_volume(s1);
|
|
if ( first_operand_volume <= ALMOST_ZERO )
|
|
Logger::Message(Logger::LOG_WARNING,"Empty solid for:",l->FirstOperand()->entity);
|
|
|
|
bool shape2_processed = false;
|
|
if ( shape_type(operand2) == ST_SHAPELIST ) {
|
|
shape2_processed = convert_shapes(operand2, items2) && flatten_shape_list(items2, s2, true);
|
|
} else if ( shape_type(operand2) == ST_SHAPE ) {
|
|
shape2_processed = convert_shape(operand2,s2);
|
|
if (shape2_processed && !is_halfspace) {
|
|
TopoDS_Solid temp_solid;
|
|
s2 = ensure_fit_for_subtraction(s2, temp_solid);
|
|
}
|
|
} else {
|
|
Logger::Message(Logger::LOG_ERROR, "Invalid representation item for boolean operation", operand2->entity);
|
|
}
|
|
|
|
if (!shape2_processed) {
|
|
shape = s1;
|
|
Logger::Message(Logger::LOG_ERROR,"Failed to convert SecondOperand of:",l->entity);
|
|
return true;
|
|
}
|
|
|
|
if (!is_halfspace) {
|
|
const double second_operand_volume = shape_volume(s2);
|
|
if ( second_operand_volume <= ALMOST_ZERO )
|
|
Logger::Message(Logger::LOG_WARNING,"Empty solid for:",operand2->entity);
|
|
}
|
|
|
|
const IfcSchema::IfcBooleanOperator::IfcBooleanOperator op = l->Operator();
|
|
|
|
/*
|
|
// TK: A little debugging trick to output both operands for visual inspection
|
|
|
|
BRep_Builder builder;
|
|
TopoDS_Compound compound;
|
|
builder.MakeCompound(compound);
|
|
builder.Add(compound, s1);
|
|
builder.Add(compound, s2);
|
|
shape = compound;
|
|
return true;
|
|
*/
|
|
|
|
BOPAlgo_Operation occ_op;
|
|
if (op == IfcSchema::IfcBooleanOperator::IfcBooleanOperator_DIFFERENCE) {
|
|
occ_op = BOPAlgo_CUT;
|
|
} else if (op == IfcSchema::IfcBooleanOperator::IfcBooleanOperator_INTERSECTION) {
|
|
occ_op = BOPAlgo_COMMON;
|
|
} else if (op == IfcSchema::IfcBooleanOperator::IfcBooleanOperator_UNION) {
|
|
occ_op = BOPAlgo_FUSE;
|
|
} else {
|
|
return false;
|
|
}
|
|
|
|
bool valid_result = boolean_operation(s1, s2, occ_op, shape);
|
|
|
|
if (op == IfcSchema::IfcBooleanOperator::IfcBooleanOperator_DIFFERENCE) {
|
|
// In case of a subtraction, a check on volume is performed.
|
|
if (valid_result) {
|
|
const double volume_after_subtraction = shape_volume(shape);
|
|
if ( ALMOST_THE_SAME(first_operand_volume,volume_after_subtraction) )
|
|
Logger::Message(Logger::LOG_WARNING,"Subtraction yields unchanged volume:",l->entity);
|
|
} else {
|
|
Logger::Message(Logger::LOG_ERROR,"Failed to process subtraction:",l->entity);
|
|
shape = s1;
|
|
}
|
|
// NB: After issuing error the first operand is returned!
|
|
return true;
|
|
} else {
|
|
return valid_result;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool IfcGeom::Kernel::convert(const IfcSchema::IfcConnectedFaceSet* l, TopoDS_Shape& shape) {
|
|
IfcSchema::IfcFace::list::ptr faces = l->CfsFaces();
|
|
|
|
TopTools_ListOfShape face_list;
|
|
for (IfcSchema::IfcFace::list::it it = faces->begin(); it != faces->end(); ++it) {
|
|
bool success = false;
|
|
TopoDS_Face face;
|
|
|
|
try {
|
|
success = convert_face(*it, face);
|
|
} catch (...) {}
|
|
|
|
if (!success) {
|
|
Logger::Message(Logger::LOG_WARNING, "Failed to convert face:", (*it)->entity);
|
|
continue;
|
|
}
|
|
|
|
if (face_area(face) > getValue(GV_MINIMAL_FACE_AREA)) {
|
|
face_list.Append(face);
|
|
} else {
|
|
Logger::Message(Logger::LOG_WARNING, "Invalid face:", (*it)->entity);
|
|
}
|
|
}
|
|
|
|
if (face_list.Extent() == 0) {
|
|
return false;
|
|
}
|
|
|
|
if (face_list.Extent() > getValue(GV_MAX_FACES_TO_SEW) || !create_solid_from_faces(face_list, shape)) {
|
|
TopoDS_Compound compound;
|
|
BRep_Builder builder;
|
|
builder.MakeCompound(compound);
|
|
|
|
TopTools_ListIteratorOfListOfShape face_iterator;
|
|
for (face_iterator.Initialize(face_list); face_iterator.More(); face_iterator.Next()) {
|
|
builder.Add(compound, face_iterator.Value());
|
|
}
|
|
shape = compound;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool IfcGeom::Kernel::convert(const IfcSchema::IfcMappedItem* l, IfcRepresentationShapeItems& shapes) {
|
|
gp_GTrsf gtrsf;
|
|
IfcSchema::IfcCartesianTransformationOperator* transform = l->MappingTarget();
|
|
if ( transform->is(IfcSchema::Type::IfcCartesianTransformationOperator3DnonUniform) ) {
|
|
IfcGeom::Kernel::convert((IfcSchema::IfcCartesianTransformationOperator3DnonUniform*)transform,gtrsf);
|
|
} else if ( transform->is(IfcSchema::Type::IfcCartesianTransformationOperator2DnonUniform) ) {
|
|
Logger::Message(Logger::LOG_ERROR, "Unsupported MappingTarget:", transform->entity);
|
|
return false;
|
|
} else if ( transform->is(IfcSchema::Type::IfcCartesianTransformationOperator3D) ) {
|
|
gp_Trsf trsf;
|
|
IfcGeom::Kernel::convert((IfcSchema::IfcCartesianTransformationOperator3D*)transform,trsf);
|
|
gtrsf = trsf;
|
|
} else if ( transform->is(IfcSchema::Type::IfcCartesianTransformationOperator2D) ) {
|
|
gp_Trsf2d trsf_2d;
|
|
IfcGeom::Kernel::convert((IfcSchema::IfcCartesianTransformationOperator2D*)transform,trsf_2d);
|
|
gtrsf = (gp_Trsf) trsf_2d;
|
|
}
|
|
IfcSchema::IfcRepresentationMap* map = l->MappingSource();
|
|
IfcSchema::IfcAxis2Placement* placement = map->MappingOrigin();
|
|
gp_Trsf trsf;
|
|
if (placement->is(IfcSchema::Type::IfcAxis2Placement3D)) {
|
|
IfcGeom::Kernel::convert((IfcSchema::IfcAxis2Placement3D*)placement,trsf);
|
|
} else {
|
|
gp_Trsf2d trsf_2d;
|
|
IfcGeom::Kernel::convert((IfcSchema::IfcAxis2Placement2D*)placement,trsf_2d);
|
|
trsf = trsf_2d;
|
|
}
|
|
gtrsf.Multiply(trsf);
|
|
|
|
const IfcGeom::SurfaceStyle* mapped_item_style = get_style(l);
|
|
|
|
const size_t previous_size = shapes.size();
|
|
bool b = convert_shapes(map->MappedRepresentation(), shapes);
|
|
|
|
for (size_t i = previous_size; i < shapes.size(); ++ i ) {
|
|
shapes[i].prepend(gtrsf);
|
|
|
|
// Apply styles assigned to the mapped item only if on
|
|
// a more granular level no styles have been applied
|
|
if (!shapes[i].hasStyle()) {
|
|
shapes[i].setStyle(mapped_item_style);
|
|
}
|
|
}
|
|
|
|
return b;
|
|
}
|
|
|
|
bool IfcGeom::Kernel::convert(const IfcSchema::IfcRepresentation* l, IfcRepresentationShapeItems& shapes) {
|
|
IfcSchema::IfcRepresentationItem::list::ptr items = l->Items();
|
|
bool part_succes = false;
|
|
if ( items->size() ) {
|
|
for ( IfcSchema::IfcRepresentationItem::list::it it = items->begin(); it != items->end(); ++ it ) {
|
|
IfcSchema::IfcRepresentationItem* representation_item = *it;
|
|
if ( shape_type(representation_item) == ST_SHAPELIST ) {
|
|
part_succes |= convert_shapes(*it, shapes);
|
|
} else {
|
|
TopoDS_Shape s;
|
|
if (convert_shape(representation_item,s)) {
|
|
shapes.push_back(IfcRepresentationShapeItem(s, get_style(representation_item)));
|
|
part_succes |= true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return part_succes;
|
|
}
|
|
|
|
bool IfcGeom::Kernel::convert(const IfcSchema::IfcGeometricSet* l, IfcRepresentationShapeItems& shapes) {
|
|
IfcEntityList::ptr elements = l->Elements();
|
|
if ( !elements->size() ) return false;
|
|
bool part_succes = false;
|
|
const IfcGeom::SurfaceStyle* parent_style = get_style(l);
|
|
for ( IfcEntityList::it it = elements->begin(); it != elements->end(); ++ it ) {
|
|
IfcSchema::IfcGeometricSetSelect* element = *it;
|
|
TopoDS_Shape s;
|
|
if (convert_shape(element, s)) {
|
|
part_succes = true;
|
|
const IfcGeom::SurfaceStyle* style = 0;
|
|
if (element->is(IfcSchema::Type::IfcPoint)) {
|
|
style = get_style((IfcSchema::IfcPoint*) element);
|
|
} else if (element->is(IfcSchema::Type::IfcCurve)) {
|
|
style = get_style((IfcSchema::IfcCurve*) element);
|
|
} else if (element->is(IfcSchema::Type::IfcSurface)) {
|
|
style = get_style((IfcSchema::IfcSurface*) element);
|
|
}
|
|
shapes.push_back(IfcRepresentationShapeItem(s, style ? style : parent_style));
|
|
}
|
|
}
|
|
return part_succes;
|
|
}
|
|
|
|
bool IfcGeom::Kernel::convert(const IfcSchema::IfcBlock* l, TopoDS_Shape& shape) {
|
|
const double dx = l->XLength() * getValue(GV_LENGTH_UNIT);
|
|
const double dy = l->YLength() * getValue(GV_LENGTH_UNIT);
|
|
const double dz = l->ZLength() * getValue(GV_LENGTH_UNIT);
|
|
|
|
BRepPrimAPI_MakeBox builder(dx, dy, dz);
|
|
gp_Trsf trsf;
|
|
IfcGeom::Kernel::convert(l->Position(),trsf);
|
|
|
|
// IfcCsgPrimitive3D.Position has unit scale factor
|
|
shape = builder.Solid().Moved(trsf);
|
|
|
|
return true;
|
|
}
|
|
|
|
bool IfcGeom::Kernel::convert(const IfcSchema::IfcRectangularPyramid* l, TopoDS_Shape& shape) {
|
|
const double dx = l->XLength() * getValue(GV_LENGTH_UNIT);
|
|
const double dy = l->YLength() * getValue(GV_LENGTH_UNIT);
|
|
const double dz = l->Height() * getValue(GV_LENGTH_UNIT);
|
|
|
|
BRepPrimAPI_MakeWedge builder(dx, dz, dy, dx / 2., dy / 2., dx / 2., dy / 2.);
|
|
|
|
gp_Trsf trsf1, trsf2;
|
|
trsf2.SetValues(
|
|
1, 0, 0, 0,
|
|
0, 0, 1, 0,
|
|
0, 1, 0, 0
|
|
#if OCC_VERSION_HEX < 0x60800
|
|
, Precision::Angular(), Precision::Confusion()
|
|
#endif
|
|
);
|
|
|
|
IfcGeom::Kernel::convert(l->Position(), trsf1);
|
|
shape = BRepBuilderAPI_Transform(builder.Solid(), trsf1 * trsf2);
|
|
return true;
|
|
}
|
|
|
|
bool IfcGeom::Kernel::convert(const IfcSchema::IfcRightCircularCylinder* l, TopoDS_Shape& shape) {
|
|
const double r = l->Radius() * getValue(GV_LENGTH_UNIT);
|
|
const double h = l->Height() * getValue(GV_LENGTH_UNIT);
|
|
|
|
BRepPrimAPI_MakeCylinder builder(r, h);
|
|
gp_Trsf trsf;
|
|
IfcGeom::Kernel::convert(l->Position(),trsf);
|
|
|
|
// IfcCsgPrimitive3D.Position has unit scale factor
|
|
shape = builder.Solid().Moved(trsf);
|
|
|
|
return true;
|
|
}
|
|
|
|
bool IfcGeom::Kernel::convert(const IfcSchema::IfcRightCircularCone* l, TopoDS_Shape& shape) {
|
|
const double r = l->BottomRadius() * getValue(GV_LENGTH_UNIT);
|
|
const double h = l->Height() * getValue(GV_LENGTH_UNIT);
|
|
|
|
BRepPrimAPI_MakeCone builder(r, 0., h);
|
|
gp_Trsf trsf;
|
|
IfcGeom::Kernel::convert(l->Position(),trsf);
|
|
|
|
// IfcCsgPrimitive3D.Position has unit scale factor
|
|
shape = builder.Solid().Moved(trsf);
|
|
|
|
return true;
|
|
}
|
|
|
|
bool IfcGeom::Kernel::convert(const IfcSchema::IfcSphere* l, TopoDS_Shape& shape) {
|
|
const double r = l->Radius() * getValue(GV_LENGTH_UNIT);
|
|
|
|
BRepPrimAPI_MakeSphere builder(r);
|
|
gp_Trsf trsf;
|
|
IfcGeom::Kernel::convert(l->Position(),trsf);
|
|
|
|
// IfcCsgPrimitive3D.Position has unit scale factor
|
|
shape = builder.Solid().Moved(trsf);
|
|
|
|
return true;
|
|
}
|
|
|
|
bool IfcGeom::Kernel::convert(const IfcSchema::IfcCsgSolid* l, TopoDS_Shape& shape) {
|
|
return convert_shape(l->TreeRootExpression(), shape);
|
|
}
|
|
|
|
bool IfcGeom::Kernel::convert(const IfcSchema::IfcCurveBoundedPlane* l, TopoDS_Shape& face) {
|
|
gp_Pln pln;
|
|
IfcGeom::Kernel::convert(l->BasisSurface(), pln);
|
|
|
|
gp_Trsf trsf;
|
|
trsf.SetTransformation(pln.Position(), gp::XOY());
|
|
|
|
TopoDS_Wire outer;
|
|
convert_wire(l->OuterBoundary(), outer);
|
|
|
|
BRepBuilderAPI_MakeFace mf (outer);
|
|
mf.Add(outer);
|
|
|
|
IfcSchema::IfcCurve::list::ptr boundaries = l->InnerBoundaries();
|
|
|
|
for (IfcSchema::IfcCurve::list::it it = boundaries->begin(); it != boundaries->end(); ++it) {
|
|
TopoDS_Wire inner;
|
|
convert_wire(*it, inner);
|
|
|
|
mf.Add(inner);
|
|
}
|
|
|
|
ShapeFix_Shape sfs(mf.Face());
|
|
sfs.Perform();
|
|
|
|
// `trsf` consitutes the placement of the plane and therefore has unit scale factor
|
|
face = TopoDS::Face(sfs.Shape()).Moved(trsf);
|
|
|
|
return true;
|
|
}
|
|
|
|
bool IfcGeom::Kernel::convert(const IfcSchema::IfcRectangularTrimmedSurface* l, TopoDS_Shape& face) {
|
|
if (!l->BasisSurface()->is(IfcSchema::Type::IfcPlane)) {
|
|
Logger::Message(Logger::LOG_ERROR, "Unsupported BasisSurface:", l->BasisSurface()->entity);
|
|
return false;
|
|
}
|
|
gp_Pln pln;
|
|
IfcGeom::Kernel::convert((IfcSchema::IfcPlane*) l->BasisSurface(), pln);
|
|
|
|
BRepBuilderAPI_MakeFace mf(pln, l->U1(), l->U2(), l->V1(), l->V2());
|
|
|
|
face = mf.Face();
|
|
|
|
return true;
|
|
}
|
|
|
|
bool IfcGeom::Kernel::convert(const IfcSchema::IfcSurfaceCurveSweptAreaSolid* l, TopoDS_Shape& shape) {
|
|
gp_Trsf directrix, position;
|
|
TopoDS_Shape face;
|
|
TopoDS_Wire wire, section;
|
|
|
|
if (!l->ReferenceSurface()->is(IfcSchema::Type::IfcPlane)) {
|
|
Logger::Message(Logger::LOG_WARNING, "Reference surface not supported", l->ReferenceSurface()->entity);
|
|
return false;
|
|
}
|
|
|
|
gp_Trsf trsf;
|
|
bool has_position = true;
|
|
#ifdef USE_IFC4
|
|
has_position = l->hasPosition();
|
|
#endif
|
|
if (has_position) {
|
|
IfcGeom::Kernel::convert(l->Position(), trsf);
|
|
}
|
|
|
|
if (!convert_face(l->SweptArea(), face) ||
|
|
!convert_wire(l->Directrix(), wire) ) {
|
|
return false;
|
|
}
|
|
|
|
gp_Pln pln;
|
|
gp_Pnt directrix_origin;
|
|
gp_Vec directrix_tangent;
|
|
bool directrix_on_plane = true;
|
|
IfcGeom::Kernel::convert((IfcSchema::IfcPlane*) l->ReferenceSurface(), pln);
|
|
|
|
// As per Informal propositions 2: The Directrix shall lie on the ReferenceSurface.
|
|
// This is not always the case with the test files in the repository. I am not sure
|
|
// how to deal with this and whether my interpretation of the propositions is
|
|
// correct. However, if it has been asserted that the vertices of the directrix do
|
|
// not conform to the ReferenceSurface, the ReferenceSurface is ignored.
|
|
{
|
|
for (TopExp_Explorer exp(wire, TopAbs_VERTEX); exp.More(); exp.Next()) {
|
|
if (pln.Distance(BRep_Tool::Pnt(TopoDS::Vertex(exp.Current()))) > ALMOST_ZERO) {
|
|
directrix_on_plane = false;
|
|
Logger::Message(Logger::LOG_WARNING, "The Directrix does not lie on the ReferenceSurface", l->entity);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
{
|
|
TopExp_Explorer exp(wire, TopAbs_EDGE);
|
|
TopoDS_Edge edge = TopoDS::Edge(exp.Current());
|
|
double u0, u1;
|
|
Handle(Geom_Curve) crv = BRep_Tool::Curve(edge, u0, u1);
|
|
crv->D1(u0, directrix_origin, directrix_tangent);
|
|
}
|
|
|
|
if (pln.Axis().Direction().IsNormal(directrix_tangent, Precision::Approximation()) && directrix_on_plane) {
|
|
directrix.SetTransformation(gp_Ax3(directrix_origin, directrix_tangent, pln.Axis().Direction()), gp::XOY());
|
|
} else {
|
|
directrix.SetTransformation(gp_Ax3(directrix_origin, directrix_tangent), gp::XOY());
|
|
}
|
|
face = BRepBuilderAPI_Transform(face, directrix);
|
|
|
|
// NB: Note that StartParam and EndParam param are ignored and the assumption is
|
|
// made that the parametric range over which to be swept matches the IfcCurve in
|
|
// its entirety.
|
|
BRepOffsetAPI_MakePipeShell builder(wire);
|
|
|
|
{ TopExp_Explorer exp(face, TopAbs_WIRE);
|
|
section = TopoDS::Wire(exp.Current()); }
|
|
|
|
builder.Add(section);
|
|
builder.SetTransitionMode(BRepBuilderAPI_RightCorner);
|
|
if (directrix_on_plane) {
|
|
builder.SetMode(pln.Axis().Direction());
|
|
}
|
|
builder.Build();
|
|
builder.MakeSolid();
|
|
shape = builder.Shape();
|
|
|
|
if (has_position) {
|
|
// IfcSweptAreaSolid.Position (trsf) is an IfcAxis2Placement3D
|
|
// and therefore has a unit scale factor
|
|
shape.Move(position);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool IfcGeom::Kernel::convert(const IfcSchema::IfcSweptDiskSolid* l, TopoDS_Shape& shape) {
|
|
TopoDS_Wire wire, section1, section2;
|
|
|
|
bool hasInnerRadius = l->hasInnerRadius();
|
|
|
|
if (!convert_wire(l->Directrix(), wire)) {
|
|
return false;
|
|
}
|
|
|
|
gp_Ax2 directrix;
|
|
{
|
|
gp_Pnt directrix_origin;
|
|
gp_Vec directrix_tangent;
|
|
TopExp_Explorer exp(wire, TopAbs_EDGE);
|
|
TopoDS_Edge edge = TopoDS::Edge(exp.Current());
|
|
double u0, u1;
|
|
Handle(Geom_Curve) crv = BRep_Tool::Curve(edge, u0, u1);
|
|
crv->D1(u0, directrix_origin, directrix_tangent);
|
|
directrix = gp_Ax2(directrix_origin, directrix_tangent);
|
|
}
|
|
|
|
const double r1 = l->Radius() * getValue(GV_LENGTH_UNIT);
|
|
Handle(Geom_Circle) circle = new Geom_Circle(directrix, r1);
|
|
section1 = BRepBuilderAPI_MakeWire(BRepBuilderAPI_MakeEdge(circle));
|
|
|
|
if (hasInnerRadius) {
|
|
const double r2 = l->InnerRadius() * getValue(GV_LENGTH_UNIT);
|
|
if (r2 < getValue(GV_PRECISION)) {
|
|
// Subtraction of pipes with small radii is unstable.
|
|
hasInnerRadius = false;
|
|
} else {
|
|
Handle(Geom_Circle) circle2 = new Geom_Circle(directrix, r2);
|
|
section2 = BRepBuilderAPI_MakeWire(BRepBuilderAPI_MakeEdge(circle2));
|
|
}
|
|
}
|
|
|
|
// NB: Note that StartParam and EndParam param are ignored and the assumption is
|
|
// made that the parametric range over which to be swept matches the IfcCurve in
|
|
// its entirety.
|
|
// NB2: Contrary to IfcSurfaceCurveSweptAreaSolid the transition mode has been
|
|
// set to create round corners as this has proven to work better with the types
|
|
// of directrices encountered, which do not necessarily conform to a surface.
|
|
{ BRepOffsetAPI_MakePipeShell builder(wire);
|
|
builder.Add(section1);
|
|
builder.SetTransitionMode(BRepBuilderAPI_RoundCorner);
|
|
builder.Build();
|
|
builder.MakeSolid();
|
|
shape = builder.Shape(); }
|
|
|
|
if (hasInnerRadius) {
|
|
BRepOffsetAPI_MakePipeShell builder(wire);
|
|
builder.Add(section2);
|
|
builder.SetTransitionMode(BRepBuilderAPI_RoundCorner);
|
|
builder.Build();
|
|
builder.MakeSolid();
|
|
TopoDS_Shape inner = builder.Shape();
|
|
|
|
BRepAlgoAPI_Cut brep_cut(shape, inner);
|
|
bool is_valid = false;
|
|
if (brep_cut.IsDone()) {
|
|
TopoDS_Shape result = brep_cut;
|
|
|
|
ShapeFix_Shape fix(result);
|
|
fix.Perform();
|
|
result = fix.Shape();
|
|
|
|
is_valid = BRepCheck_Analyzer(result).IsValid() != 0;
|
|
if (is_valid) {
|
|
shape = result;
|
|
}
|
|
}
|
|
|
|
if (!is_valid) {
|
|
Logger::Message(Logger::LOG_WARNING, "Failed to subtract inner radius void for:", l->entity);
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
#ifdef USE_IFC4
|
|
|
|
bool IfcGeom::Kernel::convert(const IfcSchema::IfcCylindricalSurface* l, TopoDS_Shape& face) {
|
|
gp_Trsf trsf;
|
|
IfcGeom::Kernel::convert(l->Position(),trsf);
|
|
|
|
// IfcElementarySurface.Position has unit scale factor
|
|
#if OCC_VERSION_HEX < 0x60502
|
|
face = BRepBuilderAPI_MakeFace(new Geom_CylindricalSurface(gp::XOY(), l->Radius())).Face().Moved(trsf);
|
|
#else
|
|
face = BRepBuilderAPI_MakeFace(new Geom_CylindricalSurface(gp::XOY(), l->Radius()), getValue(GV_PRECISION)).Face().Moved(trsf);
|
|
#endif
|
|
return true;
|
|
}
|
|
|
|
bool IfcGeom::Kernel::convert(const IfcSchema::IfcAdvancedBrep* l, TopoDS_Shape& shape) {
|
|
return convert(l->Outer(), shape);
|
|
}
|
|
|
|
bool IfcGeom::Kernel::convert(const IfcSchema::IfcTriangulatedFaceSet* l, TopoDS_Shape& shape) {
|
|
IfcSchema::IfcCartesianPointList3D* point_list = l->Coordinates();
|
|
const std::vector< std::vector<double> > coordinates = point_list->CoordList();
|
|
std::vector<gp_Pnt> points;
|
|
points.reserve(coordinates.size());
|
|
for (std::vector< std::vector<double> >::const_iterator it = coordinates.begin(); it != coordinates.end(); ++it) {
|
|
const std::vector<double>& coords = *it;
|
|
if (coords.size() != 3) {
|
|
Logger::Message(Logger::LOG_ERROR, "Invalid dimensions encountered on Coordinates", l->entity);
|
|
return false;
|
|
}
|
|
points.push_back(gp_Pnt(coords[0] * getValue(GV_LENGTH_UNIT),
|
|
coords[1] * getValue(GV_LENGTH_UNIT),
|
|
coords[2] * getValue(GV_LENGTH_UNIT)));
|
|
}
|
|
|
|
std::vector< std::vector<int> > indices = l->CoordIndex();
|
|
|
|
std::vector<TopoDS_Face> faces;
|
|
faces.reserve(indices.size());
|
|
|
|
for(std::vector< std::vector<int> >::const_iterator it = indices.begin(); it != indices.end(); ++ it) {
|
|
const std::vector<int>& tri = *it;
|
|
if (tri.size() != 3) {
|
|
Logger::Message(Logger::LOG_ERROR, "Invalid dimensions encountered on CoordIndex", l->entity);
|
|
return false;
|
|
}
|
|
|
|
const int min_index = *std::min_element(tri.begin(), tri.end());
|
|
const int max_index = *std::max_element(tri.begin(), tri.end());
|
|
|
|
if (min_index < 1 || max_index > (int) points.size()) {
|
|
Logger::Message(Logger::LOG_ERROR, "Contents of CoordIndex out of bounds", l->entity);
|
|
return false;
|
|
}
|
|
|
|
const gp_Pnt& a = points[tri[0] - 1]; // account for zero- vs
|
|
const gp_Pnt& b = points[tri[1] - 1]; // one-based indices in
|
|
const gp_Pnt& c = points[tri[2] - 1]; // c++ and express
|
|
|
|
TopoDS_Wire wire = BRepBuilderAPI_MakePolygon(a, b, c, true).Wire();
|
|
TopoDS_Face face = BRepBuilderAPI_MakeFace(wire).Face();
|
|
|
|
TopoDS_Iterator face_it(face, false);
|
|
const TopoDS_Wire& w = TopoDS::Wire(face_it.Value());
|
|
const bool reversed = w.Orientation() == TopAbs_REVERSED;
|
|
if (reversed) {
|
|
face.Reverse();
|
|
}
|
|
|
|
if (face_area(face) > getValue(GV_MINIMAL_FACE_AREA)) {
|
|
faces.push_back(face);
|
|
}
|
|
}
|
|
|
|
if (faces.empty()) return false;
|
|
|
|
bool valid_shell = false;
|
|
|
|
if (faces.size() < getValue(GV_MAX_FACES_TO_SEW)) {
|
|
BRepOffsetAPI_Sewing builder;
|
|
builder.SetTolerance(getValue(GV_POINT_EQUALITY_TOLERANCE));
|
|
builder.SetMaxTolerance(getValue(GV_POINT_EQUALITY_TOLERANCE));
|
|
builder.SetMinTolerance(getValue(GV_POINT_EQUALITY_TOLERANCE));
|
|
|
|
for (std::vector<TopoDS_Face>::const_iterator it = faces.begin(); it != faces.end(); ++it) {
|
|
builder.Add(*it);
|
|
}
|
|
|
|
try {
|
|
builder.Perform();
|
|
shape = builder.SewedShape();
|
|
valid_shell = BRepCheck_Analyzer(shape).IsValid();
|
|
} catch(...) {}
|
|
|
|
if (valid_shell) {
|
|
try {
|
|
ShapeFix_Solid solid;
|
|
solid.LimitTolerance(getValue(GV_POINT_EQUALITY_TOLERANCE));
|
|
TopoDS_Solid solid_shape = solid.SolidFromShell(TopoDS::Shell(shape));
|
|
if (!solid_shape.IsNull()) {
|
|
try {
|
|
BRepClass3d_SolidClassifier classifier(solid_shape);
|
|
shape = solid_shape;
|
|
} catch (...) {}
|
|
}
|
|
} catch(...) {}
|
|
} else {
|
|
Logger::Message(Logger::LOG_WARNING, "Failed to sew faceset:", l->entity);
|
|
}
|
|
}
|
|
|
|
if (!valid_shell) {
|
|
TopoDS_Compound compound;
|
|
BRep_Builder builder;
|
|
builder.MakeCompound(compound);
|
|
|
|
for (std::vector<TopoDS_Face>::const_iterator it = faces.begin(); it != faces.end(); ++it) {
|
|
builder.Add(compound, *it);
|
|
}
|
|
|
|
shape = compound;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
#endif
|