mirror of
https://github.com/IfcOpenShell/IfcOpenShell.git
synced 2026-08-12 10:33:20 +00:00
Thomas Krijnen
69 lines
3.0 KiB
C++
69 lines
3.0 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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#ifdef SCHEMA_HAS_IfcTriangulatedFaceSet
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taxonomy::ptr mapping::map_impl(const IfcSchema::IfcTriangulatedFaceSet* inst) {
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IfcSchema::IfcCartesianPointList3D* point_list = inst->Coordinates();
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auto coordinates = point_list->CoordList();
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std::vector<std::vector<int>> indices_list = inst->CoordIndex();
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std::vector<taxonomy::point3::ptr> points;
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points.reserve(coordinates.size());
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for (auto& coords : coordinates) {
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points.push_back(taxonomy::make<taxonomy::point3>(
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coords.size() < 1 ? 0. : coords[0] * length_unit_,
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coords.size() < 2 ? 0. : coords[1] * length_unit_,
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coords.size() < 3 ? 0. : coords[2] * length_unit_));
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}
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int max_index = (int)points.size();
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auto shell = taxonomy::make<taxonomy::shell>();
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for (auto& indices : indices_list) {
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auto fa = taxonomy::make<taxonomy::face>();
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shell->children.push_back(fa);
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{
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auto loop = taxonomy::make<taxonomy::loop>();
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fa->children = { loop };
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loop->external = true;
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taxonomy::point3::ptr previous;
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for (std::vector<int>::const_iterator jt = indices.begin(); jt != indices.end(); ++jt) {
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if (*jt < 1 || *jt > max_index) {
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throw IfcParse::IfcException("IfcTriangulatedFaceSet index out of bounds for index " + boost::lexical_cast<std::string>(*jt));
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}
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const taxonomy::point3::ptr& current = points[(*jt) - 1];
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if (jt != indices.begin()) {
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loop->children.push_back(taxonomy::make<taxonomy::edge>(previous, current));
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}
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previous = current;
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}
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}
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}
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return shell;
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}
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#endif |