SaraP
126 lines
3.5 KiB
C++
126 lines
3.5 KiB
C++
/*++
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Copyright (C) 2019 3MF Consortium
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All rights reserved.
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
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ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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Abstract:
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NMR_MeshBuilder.cpp implements the class CMeshBuilder.
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The class CMeshBuilder is auxiliary class, which construct a valid mesh by adding single faces and nodes.
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In addition already existing meshes can be added.
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--*/
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#include "Common/Mesh/NMR_MeshBuilder.h"
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#include "Common/NMR_Exception.h"
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#include <cmath>
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namespace NMR {
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CMeshBuilder::CMeshBuilder()
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{
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// empty on purpose
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}
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CMeshBuilder::CMeshBuilder(_In_ nfFloat fUnits)
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{
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m_VectorTree.setUnits(fUnits);
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}
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nfUint32 CMeshBuilder::addNode(_In_ const NVEC3 vPoint)
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{
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nfUint32 nIdx;
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if (m_VectorTree.findVector3(vPoint, nIdx))
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return nIdx;
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NVEC3 * pPoint = m_Nodes.allocData(nIdx);
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pPoint->m_values = vPoint.m_values;
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m_VectorTree.addVector3(vPoint, nIdx);
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return nIdx;
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}
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nfUint32 CMeshBuilder::addFace(_In_ const NVEC3 vPoint1, _In_ const NVEC3 vPoint2, _In_ const NVEC3 vPoint3)
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{
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NVEC3I vFaceVec;
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vFaceVec.m_fields[0] = addNode(vPoint1);
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vFaceVec.m_fields[1] = addNode(vPoint2);
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vFaceVec.m_fields[2] = addNode(vPoint3);
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nfUint32 nIdx;
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NVEC3I * pFace = m_Faces.allocData (nIdx);
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*pFace = vFaceVec;
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return nIdx;
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}
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PMesh CMeshBuilder::createMesh(_In_ nfBool bIgnoreInvalidFaces)
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{
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PMesh pResult (new CMesh);
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addToMesh(pResult.get(), bIgnoreInvalidFaces);
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return pResult;
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}
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void CMeshBuilder::addToMesh(_In_ CMesh * pMesh, _In_ nfBool bIgnoreInvalidFaces)
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{
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nfUint32 nIdx, j;
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if (!pMesh)
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throw CNMRException(NMR_ERROR_INVALIDPARAM);
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std::vector<MESHNODE *> pNodes;
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nfUint32 nNodeCount = m_Nodes.getCount();
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nfUint32 nFaceCount = m_Faces.getCount();
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pNodes.resize(nNodeCount);
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for (nIdx = 0; nIdx < nNodeCount; nIdx++) {
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NVEC3 * pPosition = m_Nodes.getData(nIdx);
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pNodes[nIdx] = pMesh->addNode(*pPosition);
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}
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for (nIdx = 0; nIdx < nFaceCount; nIdx++) {
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NVEC3I * pFaceVec = m_Faces.getData(nIdx);
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MESHNODE * pNewNodes[3];
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for (j = 0; j < 3; j++) {
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pNewNodes[j] = pNodes[pFaceVec->m_fields[j]];
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}
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if ((pNewNodes[0] == pNewNodes[1]) || (pNewNodes[0] == pNewNodes[2]) || (pNewNodes[1] == pNewNodes[2])) {
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if (!bIgnoreInvalidFaces)
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throw CNMRException(NMR_ERROR_DUPLICATENODE);
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}
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else {
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pMesh->addFace(pNewNodes[0], pNewNodes[1], pNewNodes[2]);
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}
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}
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}
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}
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