[vtkusers] vtkAVIWriter rendering and speed problems

[William E Lucarell]

I found out how to slow the framers per second on my own.  Just call
writer.Write() in an n-count for loop.

 

Example:  for (int k = 0; k < 15; k++) writer.Write();

 

The movie, unlike the render window, still doesn't update the image based on
the change in scalars, though.

 

From: vtkusers-bounces+welucarell=equityeng.com at vtk.org
[mailto:vtkusers-bounces+welucarell=equityeng.com at vtk.org] On Behalf Of
William E Lucarell
Sent: Wednesday, February 27, 2008 1:40 PM
To: vtkusers at vtk.org
Subject: [vtkusers] vtkAVIWriter rendering and speed problems

 

I am using vtkAVIWriter to generate an AVI movie in Java.  However, there
are two problems:

 

1)      I can't adjust the speed in frames per second so that every 200-500
milliseconds, the frame will change.

2)      Even though I change the scalars and update the window to image
filter, the image will not change colors based on the scalar changes.

 

Below is a code snippet:

 

    public void createAVI () {

        

        // Prepare the filter and AVI writer

        filter = new vtkWindowToImageFilter();

        filter.SetInput(renWin.GetRenderWindow());

        writerAVI = new vtkAVIWriter();

        writerAVI.SetInput(filter.GetOutput());

        writerAVI.SetFileName("c://movie.avi");

        writerAVI.Start();

        

        // Write each frame of the movie

        for (int i = 0; i < 10; i++) {

            TestMesh.GetPointData().SetScalars(scalars[i]);

            renWin.GetRenderWindow().Render();

            filter.Update();

            writerAVI.Write();

        }

        

        // Close the AVI writer

        writerAVI.End();

//        TestMesh.GetPointData().SetScalars(scalars[0]);

        renWin.Render();

        

    }

 

What am I missing? Thanks for your help in advance.

 

Bill Lucarell

 

 

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