mirror of
https://github.com/IfcOpenShell/IfcOpenShell.git
synced 2026-08-11 10:06:47 +00:00
Thomas Krijnen
64 lines
3.1 KiB
C++
64 lines
3.1 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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#include <gp_Vec.hxx>
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#include <gp_Trsf.hxx>
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#include <BRepBuilderAPI_MakeFace.hxx>
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#include <TopoDS_Wire.hxx>
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#include <BRepPrimAPI_MakePrism.hxx>
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#include <BRepAlgoAPI_Common.hxx>
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#include "../ifcgeom/IfcGeom.h"
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#include "../ifcgeom_schema_agnostic/wire_utils.h"
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#define Kernel MAKE_TYPE_NAME(Kernel)
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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 (util::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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util::remove_duplicate_points_from_loop(points, wire.Closed() != 0, t); // Note: wire always closed, as per if statement above
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util::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());
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return false;
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}
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util::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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