mirror of
https://github.com/IfcOpenShell/IfcOpenShell.git
synced 2026-08-10 09:48:32 +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 "mapping.h"
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#define mapping POSTFIX_SCHEMA(mapping)
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using namespace ifcopenshell::geometry;
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#include "../profile_helper.h"
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taxonomy::ptr mapping::map_impl(const IfcSchema::IfcTrapeziumProfileDef* inst) {
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const double x1 = inst->BottomXDim() / 2. * length_unit_;
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const double w = inst->TopXDim() * length_unit_;
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const double dx = inst->TopXOffset() * length_unit_;
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const double y = inst->YDim() / 2. * 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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const double tol = settings_.get<settings::Precision>().get();
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if (x1 < tol || w < tol || y < tol) {
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Logger::Message(Logger::LOG_NOTICE, "Skipping zero sized profile:", inst);
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return nullptr;
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}
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taxonomy::matrix4::ptr m4;
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bool has_position = true;
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#ifdef SCHEMA_IfcParameterizedProfileDef_Position_IS_OPTIONAL
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has_position = !!inst->Position();
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#endif
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if (has_position) {
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m4 = taxonomy::cast<taxonomy::matrix4>(map(inst->Position()));
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}
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return profile_helper(m4, {
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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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}
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