[vtkusers] Re: Is there anyone who knows how to load a image file asbackground in a RenderWindow?

[york]

Hi Good Win,
    I have resolved the problem by your advise and translate 
the code http://www.bioengineering-research.com/vtk/BackgroundImage.tcl
to VC++.Net
	Thanks!

Here are the relevant parts of my code:

	vtk3DSImporter* importer = vtk3DSImporter::New();
	importer->ComputeNormalsOn();
	importer->SetFileName("747.3DS");
	importer->Read();
	vtkRenderWindow *renWin = vtkRenderWindow::New();
	renWin = importer->GetRenderWindow();
	renWin->SetNumberOfLayers(2);
	vtkRenderer *ren = vtkRenderer::New();
	ren->InteractiveOn();
	vtkBMPReader *reader = vtkBMPReader::New();
	reader->SetFileName("test24BIT.bmp");
	reader->Update();
	vtkImageData *imageData = vtkImageData::New();
		imageData = reader->GetOutput();
		int a[3];
		int numCols;
		int numRows;
		int z;
		imageData->GetDimensions(a);
		numCols = a[0];
		numRows = a[1];
		z = a[2];
		//	scan [[reader GetOutput] GetDimensions] "%d %d %d" numCols numRows z

	vtkImageActor *actor = vtkImageActor::New();
	actor->SetInput(reader->GetOutput());
	vtkRenderer *ren1 = vtkRenderer::New();
	ren1->AddActor(actor);
	ren1->InteractiveOff();
	ren1->GetActiveCamera()->ParallelProjectionOn();
	ren1->GetActiveCamera()->SetParallelScale(numRows/2);

	renWin->SetSize(numCols,numRows);
	renWin->AddRenderer(ren1);
	ren1->SetLayer(1);
	ren->SetLayer(0);
	vtkRenderWindowInteractor *iren = vtkRenderWindowInteractor::New();

	iren->SetRenderWindow(renWin);	

	iren->Initialize();
	iren->Start();
	


　　　　　　　　york
　　　　　　　　yorktim at bit.edu.cn
　　　　　　　　　　2004-11-19