public void WritSimpleVTM()
{
string filePath = "..\\..\\..\\..\\..\\03Daten\\testData\\simpleTest8Points.vtm";
vtkMultiBlockDataSet multiBlockDataSet = vtkMultiBlockDataSet.New();
multiBlockDataSet.SetNumberOfBlocks(2);
vtkUnstructuredGrid unstructuredGrid1 = vtkUnstructuredGrid.New();
vtkPoints points1 = vtkPoints.New();
points1.InsertNextPoint(0, 0, 0);
points1.InsertNextPoint(1, 0, 0);
points1.InsertNextPoint(1, 1, 0);
points1.InsertNextPoint(0, 1, 1);
vtkPoints points2 = vtkPoints.New();
points1.InsertNextPoint(2, 0, 0);
points1.InsertNextPoint(2, 2, 0);
points1.InsertNextPoint(2, 2, 3);
points1.InsertNextPoint(0, 2, 3);
vtkTetra tetra = vtkTetra.New();
tetra.GetPointIds().SetId(0, 0);
tetra.GetPointIds().SetId(1, 1);
tetra.GetPointIds().SetId(2, 2);
tetra.GetPointIds().SetId(3, 3);
vtkCellArray cellArray1 = vtkCellArray.New();
cellArray1.InsertNextCell(tetra);
unstructuredGrid1.SetPoints(points1);
const int VTK_TETRA = 10;
unstructuredGrid1.SetCells(VTK_TETRA, cellArray1);
vtkCellArray cellArray2 = vtkCellArray.New();
tetra = vtkTetra.New();
tetra.GetPointIds().SetId(0, 4);
tetra.GetPointIds().SetId(1, 5);
tetra.GetPointIds().SetId(2, 6);
tetra.GetPointIds().SetId(3, 7);
cellArray2.InsertNextCell(tetra);
tetra = vtkTetra.New();
tetra.GetPointIds().SetId(0, 7);
tetra.GetPointIds().SetId(1, 5);
tetra.GetPointIds().SetId(2, 2);
tetra.GetPointIds().SetId(3, 4);
cellArray2.InsertNextCell(tetra);
vtkUnstructuredGrid unstructuredGrid = vtkUnstructuredGrid.New();
unstructuredGrid.SetPoints(points1);
unstructuredGrid.SetCells(VTK_TETRA, cellArray2);
multiBlockDataSet.SetBlock(0, unstructuredGrid1);
multiBlockDataSet.SetBlock(1, unstructuredGrid);
// Write file
vtkXMLMultiBlockDataWriter writer = vtkXMLMultiBlockDataWriter.New();
writer.SetFileName(filePath);
writer.SetInput(multiBlockDataSet);
writer.Write();
}
public void WriteVTM(string filePath, List <Vector3d> point_data, List <Vector4> tetrapoints, Dictionary <String, vtkDataArray> scalar_dataArray, List <String> arrayNames, int numberOfPoints, int numberOfTetraPoints)
{
vtkPoints points = vtkPoints.New();
for (int i = 0; i < numberOfPoints; i++)
{
points.InsertNextPoint(point_data[i].X, point_data[i].Y, point_data[i].Z);
}
vtkMultiBlockDataSet multiBlockDataSet = vtkMultiBlockDataSet.New();
double countBlocks = Math.Ceiling((double)((1.0 * numberOfTetraPoints) / 1000000));
multiBlockDataSet.SetNumberOfBlocks((uint)1);
for (int j = 0; j < 1; j++)
{
vtkUnstructuredGrid unstructuredGrid = vtkUnstructuredGrid.New();
vtkCellArray cellArrayOne = vtkCellArray.New();
int countTetras = 0;
int startTetras = j * 1000000;
if (numberOfTetraPoints < (j * 1000000) + 1000000)
{
countTetras = numberOfTetraPoints;
}
else
{
countTetras = (j * 1000000) + 1000000;
}
for (int i = startTetras; i < tetrapoints.Count(); i++)
{
vtkTetra tetra = vtkTetra.New();
tetra.GetPointIds().SetId(0, (long)tetrapoints[i][0]);
tetra.GetPointIds().SetId(1, (long)tetrapoints[i][1]);
tetra.GetPointIds().SetId(2, (long)tetrapoints[i][2]);
tetra.GetPointIds().SetId(3, (long)tetrapoints[i][3]);
cellArrayOne.InsertNextCell(tetra);
}
//for (int i = 0; i < tetrapoints2.Count(); i++)
//{
// vtkTetra tetra = vtkTetra.New();
// tetra.GetPointIds().SetId(0, (long)tetrapoints2[i][0]);
// tetra.GetPointIds().SetId(1, (long)tetrapoints2[i][1]);
// tetra.GetPointIds().SetId(2, (long)tetrapoints2[i][2]);
// tetra.GetPointIds().SetId(3, (long)tetrapoints2[i][3]);
// cellArrayOne.InsertNextCell(tetra);
//}
unstructuredGrid.SetPoints(points);
const int VTK_TETRA = 10;
unstructuredGrid.SetCells(VTK_TETRA, cellArrayOne);
int numberOfScalarData = scalar_dataArray.Count();
for (int i = 0; i < numberOfScalarData; i++)
{
scalar_dataArray.TryGetValue(arrayNames[i], out vtkDataArray scalars);
unstructuredGrid.GetPointData().AddArray(scalars);
}
multiBlockDataSet.SetBlock((uint)j, unstructuredGrid);
}
// add file ending if it is not existent
string suffix = (".vtm");
if (!(filePath.EndsWith(suffix)))
{
filePath += suffix;
}
// Write file
vtkXMLMultiBlockDataWriter writer = vtkXMLMultiBlockDataWriter.New();
writer.SetFileName(filePath);
writer.SetInput(multiBlockDataSet);
writer.Write();
// Read and display file for verification that it was written correctly
vtkXMLMultiBlockDataReader reader = vtkXMLMultiBlockDataReader.New();
if (reader.CanReadFile(filePath) == 0)
{
//MessageBox.Show("Cannot read file \"" + filePath + "\"", "Error", MessageBoxButtons.OK);
return;
}
Console.WriteLine("VTU file was writen and is saved at {0}", filePath);
}