private void ReadBMP()
{
// 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\masonry.bmp");
//Read the image
vtkBMPReader reader = vtkBMPReader.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 WriteBMP()
{
// 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_bmp.bmp");
int[] extent = new int[] { 1, 10, 1, 10, 1, 10 };
vtkImageCanvasSource2D imageSource = vtkImageCanvasSource2D.New();
imageSource.SetScalarTypeToUnsignedChar();
imageSource.SetExtent(0, 9, 0, 9, 0, 0);
imageSource.SetNumberOfScalarComponents(3);
imageSource.SetDrawColor(0, 0, 0, 0);
imageSource.FillBox(0, 9, 0, 9);
imageSource.SetDrawColor(255, 0, 0, 0);
imageSource.FillBox(5, 7, 5, 7);
imageSource.Update();
vtkBMPWriter bmpWriter = vtkBMPWriter.New();
bmpWriter.SetFileName(filePath);
bmpWriter.SetInputConnection(imageSource.GetOutputPort());
bmpWriter.Write();
// Read and display file for verification that it was written correctly
vtkBMPReader reader = vtkBMPReader.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();
}
