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https://github.com/OPM/ResInsight.git
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111 lines
4.1 KiB
C++
111 lines
4.1 KiB
C++
/////////////////////////////////////////////////////////////////////////////////
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//
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// Copyright (C) 2015- Statoil ASA
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// Copyright (C) 2015- Ceetron Solutions AS
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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 "RivPatchGenerator.h"
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#include "cvfArray.h"
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#include "cvfGeometryUtils.h"
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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RivPatchGenerator::RivPatchGenerator()
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: m_origin( 0, 0, 0 )
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, m_axisU( cvf::Vec3d::X_AXIS )
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, m_axisV( cvf::Vec3d::Y_AXIS )
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, m_useQuads( true )
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, m_windingCCW( true )
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{
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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void RivPatchGenerator::setOrigin( const cvf::Vec3d& origin )
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{
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m_origin = origin;
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}
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//--------------------------------------------------------------------------------------------------
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/// Set the axes
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///
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/// The specified axes will be normalized
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//--------------------------------------------------------------------------------------------------
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void RivPatchGenerator::setAxes( const cvf::Vec3d& axisU, const cvf::Vec3d& axisV )
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{
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m_axisU = axisU.getNormalized();
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m_axisV = axisV.getNormalized();
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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void RivPatchGenerator::setSubdivisions( const std::vector<double>& uValues, const std::vector<double>& vValues )
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{
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m_uValues = uValues;
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m_vValues = vValues;
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}
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//--------------------------------------------------------------------------------------------------
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///
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//--------------------------------------------------------------------------------------------------
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void RivPatchGenerator::generate( cvf::GeometryBuilder* builder )
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{
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CVF_ASSERT( m_uValues.size() > 0 );
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CVF_ASSERT( m_vValues.size() > 0 );
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size_t numVertices = m_uValues.size() * m_vValues.size();
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cvf::Vec3fArray vertices;
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vertices.reserve( numVertices );
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for ( size_t v = 0; v < m_vValues.size(); v++ )
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{
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cvf::Vec3d rowOrigo( m_origin + m_axisV * m_vValues[v] );
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for ( size_t u = 0; u < m_uValues.size(); u++ )
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{
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vertices.add( cvf::Vec3f( rowOrigo + m_axisU * m_uValues[u] ) );
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}
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}
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cvf::uint baseNodeIdx = builder->addVertices( vertices );
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if ( m_useQuads )
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{
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cvf::UIntArray conn;
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cvf::GeometryUtils::tesselatePatchAsQuads( static_cast<int>( m_uValues.size() ),
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static_cast<int>( m_vValues.size() ),
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baseNodeIdx,
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m_windingCCW,
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&conn );
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builder->addQuads( conn );
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}
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else
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{
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cvf::UIntArray conn;
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cvf::GeometryUtils::tesselatePatchAsTriangles( static_cast<int>( m_uValues.size() ),
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static_cast<int>( m_vValues.size() ),
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baseNodeIdx,
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m_windingCCW,
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&conn );
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builder->addTriangles( conn );
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}
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}
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