[vtkusers] World to Dataset coordinates

Mark Wyszomierski markww at gmail.com
Sun Feb 24 12:50:51 EST 2008

Can't you set up a mapping function? You know how your image data was
arranged to be put into the volume object, and you also know the VTK
coordinate system,


On Sun, Feb 24, 2008 at 6:38 AM, rashedk <rashed.vtk at googlemail.com> wrote:
> Hi there,
> I am using a vtkPropPicker to pick a point on an imageActor. I use the Pick(
> ) and GetPickPosition( ) functions to get the world coordinates of the
> picked point. How on earth do I convert it to Dataset coordinates, i.e. the
> actual image coordinates? Am I using the wrong picker class? I noticed that
> PropPicker does not return point/cell ids.
> Any help will be appreciated,
> Rashed Karim
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