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<TITLE>Re: [vtkusers] vtkCompositeDataPipeline doubts</TITLE>
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<FONT FACE="Calibri, Verdana, Helvetica, Arial"><SPAN STYLE='font-size:11pt'>What happens when you try to get the output data object or the output port?<BR>
contour.GetOutputDataObject();<BR>
or<BR>
contour.GetOutputPort();<BR>
Gerrick<BR>
<BR>
<BR>
On 9/30/08 10:38 AM, "Kaushik ." <<a href="shekhar.kaushik@gmail.com">shekhar.kaushik@gmail.com</a>> wrote:<BR>
<BR>
</SPAN></FONT><BLOCKQUOTE><FONT FACE="Calibri, Verdana, Helvetica, Arial"><SPAN STYLE='font-size:11pt'>Hi <BR>
I have been trying to get "simple filters" to work with composite data inputs.<BR>
What I do is this :<BR>
1. create the simple filter ( say a vtkContourFilter )<BR>
2. Set its executive to a vtkCompositeDataPipeline<BR>
3. Set its inputConnection to the output port of a XMLMultiBlockDataReader( the source of my <BR>
composite data ).<BR>
4. Now when i do an Update() on the contour filter and try to Get its Output using <BR>
a GetOutput() i always get a NULL value. <BR>
<BR>
The executive that i attached to the filter above however returns the proper output dataset<BR>
when i call its GetCompositeOutputData() function.<BR>
<BR>
Is this expected behaviour ?<BR>
Am I missing something ?<BR>
<BR>
In general is the method mentioned above proper to get normal filters to work <BR>
with composite data ?<BR>
<BR>
--<BR>
regards<BR>
shekhar<BR>
<BR>
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