mirror of
https://github.com/IfcOpenShell/IfcOpenShell.git
synced 2026-08-11 18:16:40 +00:00
Thomas Krijnen
59 lines
2.8 KiB
C++
59 lines
2.8 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_Trsf2d.hxx>
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#include "../ifcgeom/IfcGeom.h"
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#include "../ifcgeom_schema_agnostic/profile_helper.h"
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#define Kernel MAKE_TYPE_NAME(Kernel)
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bool IfcGeom::Kernel::convert(const IfcSchema::IfcTrapeziumProfileDef* l, TopoDS_Shape& face) {
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const double x1 = l->BottomXDim() / 2. * getValue(GV_LENGTH_UNIT);
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const double w = l->TopXDim() * getValue(GV_LENGTH_UNIT);
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const double dx = l->TopXOffset() * getValue(GV_LENGTH_UNIT);
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const double y = l->YDim() / 2. * getValue(GV_LENGTH_UNIT);
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// See: https://forums.buildingsmart.org/t/how-are-the-sides-of-ifctrapeziumprofiledefs-bounding-box-calculated-in-most-implementations/2945/8
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// The trapezium x center should not be midway of BottomXDim but rather at the center of the overall bounding box.
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const double x_offset = ((std::min(dx, 0.) + std::max(w + dx, x1 * 2.)) / 2.) - x1;
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if ( x1 < ALMOST_ZERO || w < ALMOST_ZERO || y < ALMOST_ZERO ) {
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Logger::Message(Logger::LOG_NOTICE,"Skipping zero sized profile:",l);
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return false;
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}
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gp_Trsf2d trsf2d;
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bool has_position = true;
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#ifdef SCHEMA_IfcParameterizedProfileDef_Position_IS_OPTIONAL
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has_position = l->Position() != nullptr;
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#endif
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if (has_position) {
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IfcGeom::Kernel::convert(l->Position(), trsf2d);
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}
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double coords[8] = {
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-x1 - x_offset, -y,
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+x1 - x_offset, -y,
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-x1 + dx + w - x_offset, y,
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-x1 + dx - x_offset,y
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};
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return util::profile_helper(4,coords,0,0,0,trsf2d,face);
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}
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