Writes the contents of a VTK window to a PPM file.

window_index—(optional) An integer specifying the index of an existing VTK window. If omitted, the current window is used.

Filename—File path to store PPM file. (Default: 'wave.ppm')

This procedure saves a snapshot of the selected window as a PPM file. It is important to make sure the VTK window fully visible when this routine is called because an obscuring portion of another window will be captured as part of the image. This is a limitation of VTK.

Writing a PPM file.

vtkwindow, 1

vtkaxes

vtkPPMWRITE, 1

Writing the PPM file to the file name of PV.ppm.

vtkwindow, 2, background='blue'

vtkPPMWRITE, 2, filename='PV.ppm'

vtkPPMREAD, vtkTVRD