LIB3MFMETHODIMP CCOMModelMeshObject::SetGeometry(_In_ MODELMESHVERTEX * pVertices, _In_ DWORD nVertexCount, _In_ MODELMESHTRIANGLE * pTriangles, _In_ DWORD nTriangleCount)
{
UINT j, nIndex;
try {
if ((!pVertices) || (!pTriangles))
throw CNMRException(NMR_ERROR_INVALIDPOINTER);
CMesh * pMesh = getMesh();
__NMRASSERT(pMesh);
// Clear old mesh
pMesh->clear();
// Rebuild Mesh Coordinates
MODELMESHVERTEX * pVertex = pVertices;
for (nIndex = 0; nIndex < nVertexCount; nIndex++) {
NVEC3 vPosition;
for (j = 0; j < 3; j++) {
FLOAT fCoord = pVertex->m_fPosition[j];
if (fabs(fCoord) > NMR_MESH_MAXCOORDINATE)
throw CNMRException_Windows(NMR_ERROR_INVALIDCOORDINATES, LIB3MF_INVALIDARG);
vPosition.m_fields[j] = fCoord;
}
pMesh->addNode(vPosition);
pVertex++;
}
// Rebuild Mesh Faces
MODELMESHTRIANGLE * pTriangle = pTriangles;
for (nIndex = 0; nIndex < nTriangleCount; nIndex++) {
MESHNODE * pNodes[3];
for (j = 0; j < 3; j++) {
if (pTriangle->m_nIndices[j] >= nVertexCount)
throw CNMRException_Windows(NMR_ERROR_INVALIDINDEX, LIB3MF_INVALIDARG);
pNodes[j] = pMesh->getNode(pTriangle->m_nIndices[j]);
}
if ((pTriangle->m_nIndices[0] == pTriangle->m_nIndices[1]) ||
(pTriangle->m_nIndices[0] == pTriangle->m_nIndices[2]) ||
(pTriangle->m_nIndices[1] == pTriangle->m_nIndices[2]))
throw CNMRException_Windows(NMR_ERROR_INVALIDINDEX, LIB3MF_INVALIDARG);
pMesh->addFace(pNodes[0], pNodes[1], pNodes[2]);
pTriangle++;
}
return handleSuccess();
}
catch (CNMRException & Exception) {
return handleNMRException(&Exception);
}
catch (...) {
return handleGenericException();
}
}
LIB3MFMETHODIMP CCOMModelMeshObject::AddTriangle(_In_ MODELMESHTRIANGLE * pTriangle, _Out_opt_ DWORD * pnIndex)
{
UINT j;
try {
if (!pTriangle)
throw CNMRException(NMR_ERROR_INVALIDPOINTER);
CMesh * pMesh = getMesh();
__NMRASSERT(pMesh);
// Check for input validity
UINT nNodeCount = pMesh->getNodeCount();
for (j = 0; j < 3; j++)
if (pTriangle->m_nIndices[j] >= nNodeCount)
throw CNMRException_Windows(NMR_ERROR_INVALIDINDEX, LIB3MF_INVALIDARG);
if ((pTriangle->m_nIndices[0] == pTriangle->m_nIndices[1]) ||
(pTriangle->m_nIndices[0] == pTriangle->m_nIndices[2]) ||
(pTriangle->m_nIndices[1] == pTriangle->m_nIndices[2]))
throw CNMRException_Windows(NMR_ERROR_INVALIDINDEX, LIB3MF_INVALIDARG);
MESHNODE * pNodes[3];
for (j = 0; j < 3; j++)
pNodes[j] = pMesh->getNode(pTriangle->m_nIndices[j]);
// retrieve node and return position
MESHFACE * pFace = pMesh->addFace(pNodes[0], pNodes[1], pNodes[2]);
if (pnIndex) {
*pnIndex = pFace->m_index;
}
return handleSuccess();
}
catch (CNMRException & Exception) {
return handleNMRException(&Exception);
}
catch (...) {
return handleGenericException();
}
}