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The value returned from GetBounds() includes the entire data set
(regarless of the values stored within it). Keep in mind that you may
have to do an explicit Update() in your pipeline to correctly GetBounds()
the first time - the pipeline is executed when data is rendered so if you
have not rendered yet the first time you call GetBounds() the pipeline
has not been executed and you will simply get back the default values in
the object.<br>
<br>
Lisa<br>
<br>
At 01:53 PM 6/30/99 -0700, Volker wrote: <br>
<font face="arial" size=2><blockquote type=cite cite>Hi VTK
Gurus!</font><br>
<font size=3> <br>
</font><font face="arial" size=2>Is there a way to get the bounds of a
visualized volumetric dataset including voxels with gray level of 0,
surrounding the object? It is true that an actor->GetBounds() call
returns the bounding box coordinates but it seems that the bounding box
is set around non-zero voxels only. I need the dimensions of the actor so
that I can calculate back from coordinates that I got from a picking
operation to the actual voxels.</font><br>
<font size=3> <br>
</font><font face="arial" size=2>Any advice would be
appreciated!</font><br>
<font size=3> <br>
</blockquote><br>
</font>
<BR>
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