private void ImageReader2Factory()
{
// 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\foot\foot.mha");
vtkImageReader2 reader = vtkImageReader2Factory.CreateImageReader2(filePath);
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.SetInputData(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);
}
// Static void method with same signature as "Main" is always
// file base name:
//
/// <summary>
/// VTK test Main method
/// </summary>
public static void vtkImageDataExtraTests(string[] args)
{
string vtkDataDir = "";
for (int i = 0; i < args.Length; i++)
{
if (args[i] == "-D")
{
vtkDataDir = args[i + 1];
}
}
//Read in bitmap and image data
string bmpFile = vtkDataDir + "/Data/masonry.bmp";
vtkImageReader2 rdr = vtkImageReader2Factory.CreateImageReader2(bmpFile);
rdr.SetFileName(bmpFile);
rdr.Update();
vtkImageData idata = rdr.GetOutput();
System.Drawing.Bitmap bmp = new System.Drawing.Bitmap(bmpFile);
//get bytes before and after double conversion
byte[] bmpArr1 = getArrayFromBitmap(bmp);
vtkImageData bmp1 = vtkImageData.FromImage(bmp, 3);
Bitmap bmp2 = bmp1.ToBitmap();
return;
byte[] bmpArr2 = getArrayFromBitmap(bmp2);
//get bytes before and after double conversion
byte[] idataArr1 = getArrayFromImageData(idata);
Bitmap idata1 = idata.ToBitmap();
vtkImageData idata2 = vtkImageData.FromImage(idata1, 3);
byte[] idataArr2 = getArrayFromImageData(idata2);
for (int i = 0; i < bmpArr1.Length; i++)
{
if (bmpArr1[i] != bmpArr2[i])
{
throw new Exception("ERROR: Images Not Identical!");
}
}
for (int i = 0; i < idataArr2.Length; i++)
{
if (idataArr1[i] != idataArr2[i])
{
throw new Exception("ERROR: Images Not Identical!");
}
}
rdr.Dispose();
Console.Out.WriteLine("Passed");
}
public void ImportVTK()
{
if (openFileDialog1.ShowDialog() == DialogResult.OK)
{
// Get the name of the file you want to open from the dialog
string fileName = openFileDialog1.FileName;
vtkRenderer ren = (vtkRenderer)this.myRenderWindowControl.RenderWindow.GetRenderers().GetItemAsObject(0);
//Get rid of any props already there
if (imgProp != null)
{
ren.RemoveActor(imgProp);
imgProp.Dispose();
imgProp = null;
}
//Look at known file types to see if they are readable
if (fileName.Contains(".png") ||
fileName.Contains(".jpg") ||
fileName.Contains(".jpeg") ||
fileName.Contains(".tif") ||
fileName.Contains(".slc") ||
fileName.Contains(".dicom") ||
fileName.Contains(".minc") ||
fileName.Contains(".bmp") ||
fileName.Contains(".pmn"))
{
vtkImageReader2 rdr = vtkImageReader2Factory.CreateImageReader2(fileName);
rdr.SetFileName(fileName);
rdr.Update();
imgProp = vtkImageActor.New();
((vtkImageActor)imgProp).SetInput(rdr.GetOutput());
rdr.Dispose();
}
//.vtk files need a DataSetReader instead of a ImageReader2
//some .vtk files need a different kind of reader, but this
//will read most and serve our purposes
else if (fileName.Contains(".vtk") || fileName.Contains(".VTK"))
{
vtkDataSetReader dataReader = vtkDataSetReader.New();
dataReader.SetFileName(fileName);
dataReader.Update();
vtkDataSetMapper dataMapper = vtkDataSetMapper.New();
dataMapper.SetInput(dataReader.GetOutput());
imgProp = vtkActor.New();
((vtkActor)imgProp).SetMapper(dataMapper);
dataMapper.Dispose();
dataMapper = null;
dataReader.Dispose();
dataReader = null;
}
else
{
return;
}
ren.RemoveAllViewProps();
ren.AddActor(imgProp);
ren.ResetCamera();
ren.SetBackground(0.0, 0.46, 0.5);
//Rerender the screen
//NOTE: sometimes you have to drag the mouse
//a little before the image shows up
ren.Render();
myRenderWindowControl.RenderWindow.Render();
myRenderWindowControl.Refresh();
}
}