nvm, already reported here: https://gitlab.kitware.com/paraview/paraview/issues/17121
David E DeMarle Kitware, Inc. R&D Engineer 21 Corporate Drive Clifton Park, NY 12065-8662 Phone: 518-881-4909 On Fri, Jan 20, 2017 at 12:09 PM, David E DeMarle <[email protected]> wrote: > Please file a bug report on gitlab. > > David E DeMarle > Kitware, Inc. > R&D Engineer > 21 Corporate Drive > Clifton Park, NY 12065-8662 > Phone: 518-881-4909 <(518)%20881-4909> > > On Fri, Jan 20, 2017 at 12:08 PM, David E DeMarle < > [email protected]> wrote: > >> That's a bug in either the OSPRay mapper or the ResampleToImage filter, >> depending on your point of view. To workaround, put a python programmable >> filter into the pipeline to annotate the array as being the "Active >> Scalars". >> >> In it, choose: >> Output Data Set Type = "Same as Input" //the default >> check "Copy Arrays" //not the default >> for script use :self.GetOutput().GetPointData >> ().SetActiveScalars("RTData") >> >> David E DeMarle >> Kitware, Inc. >> R&D Engineer >> 21 Corporate Drive >> Clifton Park, NY 12065-8662 >> Phone: 518-881-4909 <(518)%20881-4909> >> >> On Fri, Jan 20, 2017 at 2:45 AM, Jiahui Luo <[email protected]> wrote: >> >>> Hi , >>> I got an error message when trying to do volume rendering on the output >>> of the ResampleToImage filter: >>> >>> ERROR: In /home/user/apps/paraview5.2.0-build/superbuild/paraview/src/ >>> VTK/Rendering/OSPRay/vtkOSPRayVolumeMapperNode.cxx, line 107 >>> vtkOSPRayVolumeMapperNode (0x68c2ad0): VolumeMapper's Input has no >>> scalar array! >>> >>> Here is how it happened. >>> First, I added a ProgrammableSource with Output DataSet Type set to >>> vtkRectilinearGrid and apply something like this, >>> >>> import numpy as np >>> >>> # Read x,y,z,th from file >>> >>> xCoords = vtk.vtkDoubleArray() >>> for i in x: >>> xCoords.InsertNextValue(i) >>> >>> yCoords = vtk.vtkDoubleArray() >>> for i in y: >>> yCoords.InsertNextValue(i) >>> >>> zCoords = vtk.vtkDoubleArray() >>> for i in z: >>> zCoords.InsertNextValue(i) >>> >>> output.SetDimensions(len(x), len(y), len(z)) >>> output.SetXCoordinates(xCoords) >>> output.SetYCoordinates(yCoords) >>> output.SetZCoordinates(zCoords) >>> >>> thArray = vtk.vtkFloatArray() >>> thArray.SetName("Temperature") >>> thArray.SetNumberOfComponents(1) >>> thArray.SetNumberOfTuples(nx*ny*nz) >>> for k in range(nz): >>> for j in range(ny): >>> for i in range(nx): >>> index = i+j*nx+k*ny*nx >>> thArray.SetValue(index, th[k,j,i]) >>> output.GetCellData().SetScalars(thArray) >>> return output >>> >>> Since volume rendering can not be done on rectilinear grid. I added a >>> ResampleToImage filter on this source. >>> >>> Then I could do volume rendering using Ray cast or GPU based, but not >>> OSPray and the above message popped up. >>> >>> How to make this work? Thanks. >>> >>> Jiahui Luo >>> >>> >>> >>> >>> >>> _______________________________________________ >>> 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 >>> >>> Search the list archives at: http://markmail.org/search/?q=ParaView >>> >>> Follow this link to subscribe/unsubscribe: >>> http://public.kitware.com/mailman/listinfo/paraview >>> >>> >> >
_______________________________________________ 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 Search the list archives at: http://markmail.org/search/?q=ParaView Follow this link to subscribe/unsubscribe: http://public.kitware.com/mailman/listinfo/paraview
