/********************************************************************************
* *
* This file is part of IfcOpenShell. *
* *
* IfcOpenShell is free software: you can redistribute it and/or modify *
* it under the terms of the Lesser GNU General Public License as published by *
* the Free Software Foundation, either version 3.0 of the License, or *
* (at your option) any later version. *
* *
* IfcOpenShell is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* Lesser GNU General Public License for more details. *
* *
* You should have received a copy of the Lesser GNU General Public License *
* along with this program. If not, see . *
* *
********************************************************************************/
#include
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#include "../ifcgeom/IfcGeom.h"
#include
#include
#define Kernel MAKE_TYPE_NAME(Kernel)
#ifdef SCHEMA_HAS_IfcExtrudedAreaSolidTapered
bool IfcGeom::Kernel::convert(const IfcSchema::IfcExtrudedAreaSolidTapered* l, TopoDS_Shape& shape) {
const double height = l->Depth() * getValue(GV_LENGTH_UNIT);
if (height < getValue(GV_PRECISION)) {
Logger::Message(Logger::LOG_ERROR, "Non-positive extrusion height encountered for:", l);
return false;
}
TopoDS_Shape face1, face2;
if (!convert_face(l->SweptArea(), face1)) return false;
if (!convert_face(l->EndSweptArea(), face2)) return false;
gp_Trsf trsf;
bool has_position = true;
#ifdef SCHEMA_IfcSweptAreaSolid_Position_IS_OPTIONAL
has_position = l->Position() != nullptr;
#endif
if (has_position) {
IfcGeom::Kernel::convert(l->Position(), trsf);
}
gp_Dir dir;
convert(l->ExtrudedDirection(), dir);
gp_Trsf end_profile;
end_profile.SetTranslation(height * dir);
TopoDS_Edge spine_edge = BRepBuilderAPI_MakeEdge(gp_Pnt(), gp_Pnt((height * dir).XYZ())).Edge();
TopoDS_Wire wire = BRepBuilderAPI_MakeWire(spine_edge).Wire();
shape.Nullify();
TopExp_Explorer exp1(face1, TopAbs_WIRE);
TopExp_Explorer exp2(face2, TopAbs_WIRE);
TopoDS_Vertex v1, v2;
TopExp::Vertices(wire, v1, v2);
TopoDS_Shape shell;
TopoDS_Compound compound;
BRep_Builder compound_builder;
for (; exp1.More() && exp2.More(); exp1.Next(), exp2.Next()) {
const TopoDS_Wire& w1 = TopoDS::Wire(exp1.Current());
const TopoDS_Wire& w2 = TopoDS::Wire(exp2.Current());
BRepOffsetAPI_MakePipeShell builder(wire);
builder.Add(w1, v1);
builder.Add(w2.Moved(end_profile), v2);
TopoDS_Shape result = builder.Shape();
TopTools_ListOfShape li;
shape_to_face_list(result, li);
li.Append(BRepBuilderAPI_MakeFace(w1).Face().Reversed());
li.Append(BRepBuilderAPI_MakeFace(w2).Face().Moved(end_profile));
create_solid_from_faces(li, result, true);
// @todo ugly hack
// The reason for this distinction is that at this point of the loop we're not sure anymore
// whether this was constructed from an inner or outer bound. So rather than iterating over
// wires of `face1` and `face2` we should iterate over the faces and then properly check with
// BRepTools::OuterBound().
// Currently this distinction happens based on profile type which is not robust and probably
// not complete.
if (shell.IsNull()) {
shell = result;
} else if (l->SweptArea()->declaration().is(IfcSchema::IfcCircleHollowProfileDef::Class()) ||
l->SweptArea()->declaration().is(IfcSchema::IfcRectangleHollowProfileDef::Class()) ||
l->SweptArea()->declaration().is(IfcSchema::IfcArbitraryProfileDefWithVoids::Class()))
{
// @todo properly check for failure and all.
shell = BRepAlgoAPI_Cut(shell, result).Shape();
} else {
if (compound.IsNull()) {
compound_builder.MakeCompound(compound);
compound_builder.Add(compound, shell);
}
compound_builder.Add(compound, result);
}
}
if (!compound.IsNull()) {
shell = compound;
}
shape = shell;
if (exp1.More() != exp2.More()) {
Logger::Message(Logger::LOG_ERROR, "Inconsistent profiles encountered for:", l);
}
if (has_position && !shape.IsNull()) {
// IfcSweptAreaSolid.Position (trsf) is an IfcAxis2Placement3D
// and therefore has a unit scale factor
shape.Move(trsf);
}
return !shape.IsNull();
}
#endif