private void ReadStructuredGrid()
{
// Path to vtk data must be set as an environment variable
// VTK_DATA_ROOT = "C:\VTK\vtkdata-5.8.0"
vtkTesting test = vtkTesting.New();
string root = test.GetDataRoot();
string filePath = System.IO.Path.Combine(root, @"Data\multicomb_0.vts");
// reader
vtkXMLStructuredGridReader reader = vtkXMLStructuredGridReader.New();
if (reader.CanReadFile(filePath) == 0)
{
MessageBox.Show("Cannot read file \"" + filePath + "\"", "Error", MessageBoxButtons.OK);
return;
}
reader.SetFileName(filePath);
reader.Update(); // here we read the file actually
vtkStructuredGridGeometryFilter geometryFilter = vtkStructuredGridGeometryFilter.New();
geometryFilter.SetInputConnection(reader.GetOutputPort());
geometryFilter.Update();
// Visualize
vtkPolyDataMapper mapper = vtkPolyDataMapper.New();
mapper.SetInputConnection(geometryFilter.GetOutputPort());
//// mapper
//vtkDataSetMapper mapper = vtkDataSetMapper.New();
//mapper.SetInputConnection(reader.GetOutputPort());
// actor
vtkActor actor = vtkActor.New();
actor.SetMapper(mapper);
// get a reference to the renderwindow of our renderWindowControl1
vtkRenderWindow renderWindow = renderWindowControl1.RenderWindow;
// renderer
vtkRenderer renderer = renderWindow.GetRenderers().GetFirstRenderer();
// set background color
renderer.SetBackground(0.2, 0.3, 0.4);
// add our actor to the renderer
renderer.AddActor(actor);
}
public void Read_StructuredGrid_File(string filename)
{
vtkXMLStructuredGridReader reader = new vtkXMLStructuredGridReader();
reader.SetFileName(filename);
reader.Update();
vtkStructuredGrid structuredGrid = reader.GetOutput();
dimensions = structuredGrid.GetDimensions();
vtkPoints points = structuredGrid.GetPoints();
int numPoints = (int)structuredGrid.GetNumberOfPoints();
List <Vector3d> point_dat = new List <Vector3d>();
if (numPoints != 0)
{
// Read Point Data
double[] pt;
for (int i = 0; i < numPoints; i++)
{
pt = points.GetPoint(i);
point_dat.Add(new Vector3d((float)pt[0], (float)pt[1], (float)pt[2]));
}
if (this.vertex_data.ContainsKey("vertices"))
{
this.vertex_data["vertices"] = point_dat;
}
else
{
this.vertex_data.Add("vertices", point_dat);
}
Console.WriteLine("All points read in correctly!");
}
vtkPointData scalarValues = structuredGrid.GetPointData();
// Load point attributes
this.Load_Point_Attributes(scalarValues);
}
private void XMLStructuredGridWriter()
{
// Path to vtk data must be set as an environment variable
// VTK_DATA_ROOT = "C:\VTK\vtkdata-5.8.0"
vtkTesting test = vtkTesting.New();
string root = test.GetDataRoot();
string filePath = System.IO.Path.Combine(root, @"Data\structuredgrid_test.vts");
// Create a grid
vtkStructuredGrid structuredGrid = vtkStructuredGrid.New();
vtkPoints points = vtkPoints.New();
points.InsertNextPoint(0, 0, 0);
points.InsertNextPoint(1, 0, 0);
points.InsertNextPoint(0, 1, 0);
points.InsertNextPoint(1, 1, 0);
points.InsertNextPoint(0, 2, 0);
points.InsertNextPoint(1, 2, 1);
// Specify the dimensions of the grid
structuredGrid.SetDimensions(2, 3, 1);
structuredGrid.SetPoints(points);
// Write file
vtkXMLStructuredGridWriter writer = vtkXMLStructuredGridWriter.New();
writer.SetFileName(filePath);
writer.SetInput(structuredGrid);
writer.Write();
// Read and display file for verification that it was written correctly
vtkXMLStructuredGridReader reader = vtkXMLStructuredGridReader.New();
if (reader.CanReadFile(filePath) == 0)
{
MessageBox.Show("Cannot read file \"" + filePath + "\"", "Error", MessageBoxButtons.OK);
return;
}
reader.SetFileName(filePath);
reader.Update(); // here we read the file actually
vtkStructuredGridGeometryFilter geometryFilter = vtkStructuredGridGeometryFilter.New();
geometryFilter.SetInputConnection(reader.GetOutputPort());
geometryFilter.Update();
// Visualize
vtkPolyDataMapper mapper = vtkPolyDataMapper.New();
mapper.SetInputConnection(geometryFilter.GetOutputPort());
// actor
vtkActor actor = vtkActor.New();
actor.SetMapper(mapper);
// get a reference to the renderwindow of our renderWindowControl1
vtkRenderWindow renderWindow = renderWindowControl1.RenderWindow;
// renderer
vtkRenderer renderer = renderWindow.GetRenderers().GetFirstRenderer();
// set background color
renderer.SetBackground(0.2, 0.3, 0.4);
// add our actor to the renderer
renderer.AddActor(actor);
}
