VTK's support for non axis aligned volumes is limited to the vtkStructuredGrid class. Like vtkImageData and vtkRectilinearGrid, it is used to represent topologically regular images and volumes. However the geometry is unconstrained in this class and you have to supply coordinates for every point. This implies even greater memory use.
So what I suggest is load in your raw data in ParaView as normal then apply the python programmable filter or python calculator to: 1) change the type to vtkStructuredGrid 2) compute and populate a buffer with the correct coordinates for each point 3) use vtkStructuredGrid::SetPoints to tell the StructuredGrid to use that buffer as the data set's geometry David E DeMarle Kitware, Inc. R&D Engineer 21 Corporate Drive Clifton Park, NY 12065-8662 Phone: 518-881-4909 On Fri, Apr 6, 2012 at 5:22 AM, Claire Mouton <claire.mou...@creatis.insa-lyon.fr> wrote: > Hi to all, > > I have a raw image for which the acquisition has not been done > following the usual orientation. In other words, the image is not orientated > following the usual orthogonal axes, but slightly in diagonal. The size > of the image : 1340*1340*1560, representing 2,8 Go. > > Is it possible to modify its orientation and to save it with the modified > orientation? > > Thanks for your help, > Claire Mouton > _______________________________________________ > 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://www.paraview.org/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 Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview