Hi Greg, I tracked down the problem. It is this line:
133 sgrid->SetDimensions(count[0], count[1], count[2]); This is equivalent to sgrid->SetExtent(0, count[0]-1, 0, count[1]-1, 0, count[2]-1); which overwrites the earlier SetExtent() call. If you get rid of it, it should work fine. Best, -berk On Sat, Nov 29, 2014 at 7:09 PM, Greg Abram <[email protected]> wrote: > Hey y'all - > > I'm trying to write a parallel reader for a user's structured grid and am > having a problem with extents. I've included a plugin that demonstrates > the problem - a little "importer" that hardwires a whole extent of 0,10 in > each axis. In RequestInformation it calls: > > > outInfo->Set(vtkStreamingDemandDrivenPipeline::WHOLE_EXTENT(),this->Internals->extent,6); > outInfo->Set(CAN_PRODUCE_SUB_EXTENT(), 1); > > and in RequestData it calls > > outInfo->Get(vtkStreamingDemandDrivenPipeline::UPDATE_EXTENT(),subext); > vtkStructuredGrid *sgrid = vtkStructuredGrid::SafeDownCast(output); > sgrid->SetExtent(subext); > > to get the update extent from the pipeline and set it onto the > structured grid.. It then stuffs points and data to create a grid from -1 > to 1 in each axis. > > When I run it on 2 processes, the result *looks* right, it fills the -1 > to 1 space along each axis, there are the right number of cells and points, > ProcessIdScalars shows two equal size partitions, but the extent is clearly > not right - the wireframe and surface surface boundaries are incomplete and > the extent shown in the Information tab is correct for only one of the two > parts. > > So, what am I doing wrong? > > If anyone is interested, I uploaded the plugin code to: > https://utexas.box.com/s/d6ef5kx4oxm1d205hbbo > > Gregory D. Abram, Ph.D. > Research Engineering/Scientist Associate > Texas Advanced Computing Center > The University of Texas at Austin > (512) 471-8196 > [email protected] > > [image: TACC Website] <https://www.tacc.utexas.edu/> > > Connect With TACC <https://www.tacc.utexas.edu/> > > > > > _______________________________________________ > Powered by www.kitware.com > > Visit other Kitware open-source projects at > http://www.kitware.com/opensource/opensource.html > > Please keep messages on-topic and check the ParaView Wiki at: > http://paraview.org/Wiki/ParaView > > Follow this link to subscribe/unsubscribe: > http://public.kitware.com/mailman/listinfo/paraview > >
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