[vtkusers] How to extract contours from a data using several vtkContourFilters

[Marcel Weiss]

seems like some part of the processing pipeline (the Filter?) is not threadsafe.

several instances of the data might help.

Marcel

----- Original Message -----
From: "Igal Rasin" <igalrasin at gmail.com>
To: vtkusers at vtk.org
Sent: Thursday, August 7, 2008 11:09:12 AM GMT +01:00 Amsterdam / Berlin / Bern / Rome / Stockholm / Vienna
Subject: [vtkusers] How to extract contours from a data using several vtkContourFilters



Hi all, 

I need to write a threaded application for contours extraction. Namely I have a vtkImadeData and I want to extract several contour surfaces using several vtkContourFilters. 

It returns me an error: 
vtkStreamingDemandDrivenPipeli 
ne (0xb2b9090): ProcessRequest invoked during another request. Returning failure to algorithm vtkTrivialProducer(0xb2b8d38) for the recursive request 

can somebody tell me what is wrong? Should I apply different filters to different data? 

Thanks 

Igal 
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