<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:'times new roman', 'new york', times, serif;font-size:12pt"><div>Hi all. </div><div><br></div><div>I'm working on two separate projects using Tcl/Tk and VTK5.2 and have been stymied by the same error in each. I would be enormously appreciative if</div><div>anyone could provide some feedback. </div><div><br></div><div>In one project I'm creating an empty image data set then using vtkStencil to create a voxelized version of a polydata model in it. </div><div><br></div><div>In the other project I'm loading in some 3D ultrasound data in spherical coordinates, putting it into a vtkStructuredGrid, then trying to probe this</div><div>using a vtkImageData object in order to resample the unstructured grid into image data. </div><div><br></div><div>In both projects I'm stuck getting an error that looks like this:</div><div><span class="Apple-style-span"
style="font-family: Times; "><pre>vtkStreamingDemandDrivenPipeline (061A8E28): The update extent specified
in the information for output port 0 on algorithm ....</pre><pre><font class="Apple-style-span" face="'times new roman'"><span class="Apple-style-span" style="white-space: normal;">Unfortunately the error disappears from the vtkOutput window when Windows tosses up one of those 'VTK.exe had to close do you want to send a report' messages so </span></font></pre><pre><font class="Apple-style-span" face="'times new roman'"><span class="Apple-style-span" style="white-space: normal;">I'm not sure what the entire message reads. I've been trying a wide range of things to work around this error but the fact that has come up in two separate projects</span></font></pre><pre><font class="Apple-style-span" face="'times new roman'"><span class="Apple-style-span" style="white-space: normal;">leads me to believe that I may not understand the pipeline correctly. In both cases I create an empty vtkImageData, so I've been focusing on this. I've wondered
if </span></font></pre><pre><font class="Apple-style-span" face="'times new roman'"><span class="Apple-style-span" style="white-space: normal;">I need to force and Update (or not), set extents differently or ...</span></font></pre><pre><font class="Apple-style-span" face="'times new roman'"><span class="Apple-style-span" style="white-space: normal;">If anyone is familiar with this error and could make suggestions (even if they are elementary) it would be a huge help. I've invested a lot of time into this and</span></font></pre><pre><font class="Apple-style-span" face="'times new roman'"><span class="Apple-style-span" style="white-space: normal;">am now far behind. </span></font></pre><pre><font class="Apple-style-span" face="'times new roman'"><span class="Apple-style-span" style="white-space: normal;">Thank you very much</span></font></pre><pre><font class="Apple-style-span" face="'times new roman'"><span class="Apple-style-span" style="white-space:
normal;">MH</span></font></pre></span></div><div style="position:fixed"></div></div><br>
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