mirror of
https://github.com/IfcOpenShell/IfcOpenShell.git
synced 2026-08-11 18:16:40 +00:00
Thomas Krijnen
56 lines
2.6 KiB
C++
56 lines
2.6 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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taxonomy::ptr mapping::map_impl(const IfcSchema::IfcEllipse* inst) {
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double x = inst->SemiAxis1() * length_unit_;
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double y = inst->SemiAxis2() * length_unit_;
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const double tol = settings_.get<settings::Precision>().get();
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if (x < tol || y < tol) {
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Logger::Message(Logger::LOG_ERROR, "Radius not greater than zero for:", inst);
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return nullptr;
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}
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auto el = taxonomy::make<taxonomy::ellipse>();
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el->matrix = taxonomy::cast<taxonomy::matrix4>(map(inst->Position()));
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// Open Cascade does not allow ellipses of which the minor radius
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// is greater than the major radius. Hence, in this case, the
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// ellipse is rotated. Note that special care is taken
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// when creating a trimmed curve off of an ellipse like this.
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if (y > x) {
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// @todo is a copy necesary here or can this be done in place?
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auto m4_copy = *el->matrix;
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el->matrix->components() <<
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-m4_copy.components().col(1),
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m4_copy.components().col(0),
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m4_copy.components().col(2),
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m4_copy.components().col(3);
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std::swap(x, y);
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}
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el->radius = x;
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el->radius2 = y;
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return el;
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}
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