[vtkusers] Define the Z dimension of a Frustum ?

[Francesco Ferro]

No Idea ?

Regards,
F.F

Francesco Ferro wrote:
> Hello,
>
> I'm currently playing with vtkRendereAreaPicker class and in 
> particualar with ::DefineFrustum.
>
> I wanted to see the shape of my frustum so I used vtkFrusutmSource (I 
> saw the piece of code on this mailling list, thx to the person who 
> posted that..) to display the Frustum polydata...
> It works perfectly. However there is something wierd... Depending the 
> size of the frustum.. the Z dimension is not always the same !?
>
> for example with a 60x60 (relatively big) frustum square the Z 
> dimension of thegenerated frustum it's maybe 20
> and with a smaller one (15x15) the Z dimension of thegenerated frustum 
> it's maybe 60 ...
>
> So I was wondering if there was a possibility to Crop or Cut or Define 
> the Z dim of the generated frustum ?
>
> (vtkAreaPicker (where the frustum is computed) but I can't find where 
> the dim are set.. )
>
> Thank's in advance,
> F.F
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