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IfcOpenShell/src/ifcgeom/mapping/IfcMappedItem.cpp
T

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/********************************************************************************
* *
* This file is part of IfcOpenShell. *
* *
* IfcOpenShell is free software: you can redistribute it and/or modify *
* it under the terms of the Lesser GNU General Public License as published by *
* the Free Software Foundation, either version 3.0 of the License, or *
* (at your option) any later version. *
* *
* IfcOpenShell is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* Lesser GNU General Public License for more details. *
* *
* You should have received a copy of the Lesser GNU General Public License *
* along with this program. If not, see <http://www.gnu.org/licenses/>. *
* *
********************************************************************************/
#include "mapping.h"
#define mapping POSTFIX_SCHEMA(mapping)
using namespace ifcopenshell::geometry;
taxonomy::ptr mapping::map_impl(const IfcSchema::IfcMappedItem* inst) {
IfcSchema::IfcCartesianTransformationOperator* transform = inst->MappingTarget();
taxonomy::matrix4::ptr gtrsf = taxonomy::cast<taxonomy::matrix4>(map(transform));
IfcSchema::IfcRepresentationMap* rmap = inst->MappingSource();
IfcSchema::IfcAxis2Placement* placement = rmap->MappingOrigin();
taxonomy::matrix4::ptr trsf2 = taxonomy::cast<taxonomy::matrix4>(map(placement));
Eigen::Matrix4d res = gtrsf->ccomponents() * trsf2->ccomponents();
// @todo immutable for caching?
// @todo allow for multiple levels of matrix?
auto shapes = taxonomy::dcast<taxonomy::collection>(map(rmap->MappedRepresentation()));
if (shapes == nullptr) {
if (failed_on_purpose_.find(rmap->MappedRepresentation()) != failed_on_purpose_.end()) {
// propagate
failed_on_purpose_.insert(inst);
}
return shapes;
}
auto collection = taxonomy::make<taxonomy::collection>();
collection->children.push_back(shapes);
collection->matrix = taxonomy::make<taxonomy::matrix4>(res);
if (shapes != nullptr) {
for (auto& c : taxonomy::cast<taxonomy::collection>(shapes)->children) {
// @todo previously style was also copied.
}
}
return collection;
}