mirror of
https://github.com/OPM/ResInsight.git
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105 lines
4.0 KiB
C++
105 lines
4.0 KiB
C++
/////////////////////////////////////////////////////////////////////////////////
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//
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// Copyright (C) 2025- Equinor ASA
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//
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// ResInsight is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// ResInsight is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE.
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//
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// See the GNU General Public License at <http://www.gnu.org/licenses/gpl.html>
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// for more details.
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//
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/////////////////////////////////////////////////////////////////////////////////
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#include "RifVtkSurfaceImporter.h"
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#include "RifVtkImportUtil.h"
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#include "Surface/RigTriangleMeshData.h"
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#include <filesystem>
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#include <memory>
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#include <string>
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#include <vector>
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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std::unique_ptr<RigTriangleMeshData> RifVtkSurfaceImporter::importFromFile( const std::filesystem::path& filepath )
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{
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pugi::xml_document doc;
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pugi::xml_parse_result result = doc.load_file( filepath.string().c_str() );
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if ( !result ) return nullptr;
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return importFromXmlDoc( doc );
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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std::unique_ptr<RigTriangleMeshData> RifVtkSurfaceImporter::importFromXmlDoc( const pugi::xml_document& doc )
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{
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auto root = doc.child( "VTKFile" );
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if ( !root ) return nullptr;
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auto grid = root.child( "UnstructuredGrid" );
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if ( !grid ) return nullptr;
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auto piece = grid.child( "Piece" );
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if ( !piece ) return nullptr;
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// Read points
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std::vector<cvf::Vec3d> vertices = RifVtkImportUtil::readPoints( piece );
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if ( vertices.empty() ) return nullptr;
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// Read connectivity
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std::vector<unsigned> connectivity = RifVtkImportUtil::readConnectivity( piece );
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if ( connectivity.empty() ) return nullptr;
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// Avoid shared nodes
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std::vector<cvf::Vec3d> nonSharedVertices;
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std::vector<unsigned> nonSharedConnectivity;
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const auto numTriangles = connectivity.size() / 3;
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for ( size_t triangleIdx = 0; triangleIdx < numTriangles; triangleIdx++ )
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{
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nonSharedVertices.push_back( vertices[connectivity[3 * triangleIdx + 0]] );
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nonSharedVertices.push_back( vertices[connectivity[3 * triangleIdx + 1]] );
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nonSharedVertices.push_back( vertices[connectivity[3 * triangleIdx + 2]] );
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nonSharedConnectivity.push_back( static_cast<unsigned int>( 3 * triangleIdx + 0 ) );
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nonSharedConnectivity.push_back( static_cast<unsigned int>( 3 * triangleIdx + 1 ) );
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nonSharedConnectivity.push_back( static_cast<unsigned int>( 3 * triangleIdx + 2 ) );
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}
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// Set geometry data
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auto triangleMeshData = std::make_unique<RigTriangleMeshData>();
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triangleMeshData->setGeometryData( nonSharedVertices, nonSharedConnectivity );
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// Read properties
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const std::map<std::string, std::vector<float>> properties = RifVtkImportUtil::readProperties( piece );
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for ( const auto& [name, values] : properties )
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{
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// These values are per element, so we need to duplicate them for each node
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if ( values.size() * 3 == nonSharedVertices.size() )
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{
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std::vector<float> valuesForEachNode;
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for ( auto value : values )
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{
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valuesForEachNode.push_back( value );
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valuesForEachNode.push_back( value );
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valuesForEachNode.push_back( value );
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}
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triangleMeshData->addPropertyData( QString::fromStdString( name ), valuesForEachNode );
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}
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}
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return triangleMeshData;
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}
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