Method loadTetgenModel

Utils/TetGenLoader.cpp:113–189

void TetGenLoader::loadTetgenModel(const std::string &nodeFilename, const std::string &eleFilename, std::vector<Vector3r>& vertices, std::vector<unsigned int>& tets)
{
	LOG_INFO << "Loading " << nodeFilename;
	LOG_INFO << "Loading " << eleFilename;

	// variables
	size_t i, num_vertices, num_tetras;
	string nodeLine, eleLine, label;
	stringstream sStream;
	// try to open the file
	ifstream finNode(nodeFilename.c_str());
	ifstream finEle(eleFilename.c_str());
	if(!finNode)
	{
		LOG_ERR << "'" + nodeFilename + "' file not found.";
		return;
	}
	if(!finEle)
	{
		LOG_ERR << "'" + eleFilename + "' file not found.";
		return;
	}

	// get num vertices
	getline(finNode, nodeLine);
	sStream << nodeLine;
	sStream >> num_vertices;
	sStream >> label; // 3
	sStream >> label; // 0
	sStream >> label; // 0
	sStream.clear();

	// get num tetras
	getline(finEle, eleLine);
	sStream << eleLine;
	sStream >> num_tetras;
	sStream >> label; // 4
	sStream >> label; // 0
	sStream >> label; // 0
	sStream.clear();

	vertices.resize(num_vertices);
	tets.resize(4u*num_tetras);

	// read vertices
	for(i = 0; i < num_vertices; ++i)
	{
		unsigned nodeInd;
		Real x, y, z;
		getline(finNode, nodeLine);
		sStream << nodeLine;
		sStream >> nodeInd >> x >> y >> z;
		getline(sStream, nodeLine);
		sStream.clear();
		
		vertices[i] = Vector3r(x, y, z);
	}