mirror of
https://github.com/IfcOpenShell/IfcOpenShell.git
synced 2026-08-09 17:31:45 +00:00
Thomas Krijnen
101 lines
4.3 KiB
C++
101 lines
4.3 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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/********************************************************************************
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* *
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* Example that generates an IfcTriangulatedFaceSet *
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* *
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********************************************************************************/
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#include <iostream>
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#include <fstream>
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#include <optional>
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#include "ifcparse/macros.h"
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#ifndef IfcSchema
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#define IfcSchema Ifc4
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#endif
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#include INCLUDE_SCHEMA(ifcparse, IfcSchema)
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#include INCLUDE_SCHEMA_DEFINITIONS(ifcparse, IfcSchema)
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#include "ifcparse/IfcHierarchyHelper.h"
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#include "suzanne_geometry.h"
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typedef std::string S;
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typedef IfcParse::IfcGlobalId guid;
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boost::none_t const null = boost::none;
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template <typename T>
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std::vector< std::vector<T> > create_vector_from_array(const T* arr, unsigned size) {
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std::vector< std::vector<T> > result;
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result.reserve(size);
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for (unsigned i = 0; i < size; ) {
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std::vector<T> ts; ts.reserve(3);
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for (unsigned j = 0; j < 3; ++i, ++j) {
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ts.push_back(arr[i]);
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}
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result.push_back(ts);
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}
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return result;
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}
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int main(int argc, char** argv) {
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IfcHierarchyHelper<IfcSchema> file;
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IfcSchema::IfcBuildingElementProxy* product = new IfcSchema::IfcBuildingElementProxy(
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guid(), 0, S("Blender's Suzanne"), null, null, 0, 0, null, null);
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file.addBuildingProduct(product);
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product->setOwnerHistory(file.getSingle<IfcSchema::IfcOwnerHistory>());
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product->setObjectPlacement(file.addLocalPlacement());
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IfcSchema::IfcRepresentation::list::ptr reps (new IfcSchema::IfcRepresentation::list);
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IfcSchema::IfcRepresentationItem::list::ptr items (new IfcSchema::IfcRepresentationItem::list);
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std::vector< std::vector< double > > vertices_vector = create_vector_from_array(vertices, sizeof(vertices) / sizeof(vertices[0]));
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std::vector< std::vector< int > > indices_vector = create_vector_from_array(indices, sizeof(indices) / sizeof(indices[0]));
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IfcSchema::IfcCartesianPointList3D* coordinates = new IfcSchema::IfcCartesianPointList3D(vertices_vector
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#ifdef SCHEMA_IfcCartesianPointList3D_HAS_TagList
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, boost::none
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#endif
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);
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IfcSchema::IfcTriangulatedFaceSet* faceset = new IfcSchema::IfcTriangulatedFaceSet(coordinates, null, null, indices_vector, null);
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items->push(faceset);
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IfcSchema::IfcShapeRepresentation* rep = new IfcSchema::IfcShapeRepresentation(
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file.getRepresentationContext("Model"), S("Body"), S("SurfaceModel"), items);
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reps->push(rep);
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IfcSchema::IfcProductDefinitionShape* shape = new IfcSchema::IfcProductDefinitionShape(boost::none, boost::none, reps);
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file.addEntity(shape);
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product->setRepresentation(shape);
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const std::string filename = "triangulated_faceset.ifc";
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file.header().file_name()->setname(filename);
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std::ofstream f(filename);
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f << file;
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}
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