private void WritePNG()
{
// 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\test_png.png");
int[] extent = new int[] { 0, 99, 0, 99, 0, 0 };
vtkImageCanvasSource2D imageSource = vtkImageCanvasSource2D.New();
imageSource.SetExtent(extent[0], extent[1], extent[2], extent[3], extent[4], extent[5]);
imageSource.SetScalarTypeToUnsignedChar();
imageSource.SetNumberOfScalarComponents(3);
imageSource.SetDrawColor(127, 45, 255);
imageSource.FillBox(0, 99, 0, 99);
imageSource.SetDrawColor(255, 255, 255);
imageSource.FillBox(40, 70, 20, 50);
imageSource.Update();
vtkImageCast castFilter = vtkImageCast.New();
castFilter.SetOutputScalarTypeToUnsignedChar();
castFilter.SetInputConnection(imageSource.GetOutputPort());
castFilter.Update();
vtkPNGWriter writer = vtkPNGWriter.New();
writer.SetFileName(filePath);
writer.SetInputConnection(castFilter.GetOutputPort());
writer.Write();
// Read and display file for verification that it was written correctly
vtkPNGReader reader = vtkPNGReader.New();
if (reader.CanReadFile(filePath) == 0)
{
MessageBox.Show("Cannot read file \"" + filePath + "\"", "Error", MessageBoxButtons.OK);
return;
}
reader.SetFileName(filePath);
reader.Update();
// Visualize
vtkImageViewer2 imageViewer = vtkImageViewer2.New();
imageViewer.SetInputConnection(reader.GetOutputPort());
// 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);
imageViewer.SetRenderer(renderer);
renderer.ResetCamera();
}
private void WriteMetaImage()
{
// 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\test_mha.mhd");
string filePathRaw = System.IO.Path.Combine(root, @"Data\test_mha.raw");
// Create an image
vtkImageMandelbrotSource source = vtkImageMandelbrotSource.New();
source.Update();
vtkImageCast castFilter = vtkImageCast.New();
castFilter.SetOutputScalarTypeToUnsignedChar();
castFilter.SetInputConnection(source.GetOutputPort());
castFilter.Update();
vtkMetaImageWriter writer = vtkMetaImageWriter.New();
writer.SetInputConnection(castFilter.GetOutputPort());
writer.SetFileName(filePath);
writer.SetRAWFileName(filePathRaw);
writer.Write();
// Read and display file for verification that it was written correctly
vtkMetaImageReader reader = vtkMetaImageReader.New();
if (reader.CanReadFile(filePath) == 0)
{
MessageBox.Show("Cannot read file \"" + filePath + "\"", "Error", MessageBoxButtons.OK);
return;
}
reader.SetFileName(filePath);
reader.Update();
vtkImageActor actor = vtkImageActor.New();
actor.SetInput(reader.GetOutput());
// Visualize
vtkRenderWindow renderWindow = renderWindowControl1.RenderWindow;
// renderer
vtkRenderer renderer = renderWindow.GetRenderers().GetFirstRenderer();
// set background color
renderer.SetBackground(0.2, 0.3, 0.4);
renderer.AddActor(actor);
}