On Fri, Oct 20, 2017 at 10:10 AM, A . <super_ac...@hotmail.com> wrote:
> Thanks for your reply. I can see this work for vtkImageData objects having > the same dimensions. What would you advise when working with vtkImageData > objects of varying dimensions? In that case the attribute data will not > 'fit' a single vtkImageData object. > For that case, nothing comes to mind that will let you stored several different vtkImageData objects in a single file. Even if a vtkMultiBlockDataSet worked for your other needs, it would actually be saved out as one .vti file for each block plus a top-level .vtm file that points to the .vti files. Sorry, Cory > Best, > > Jimmy > > > ------------------------------ > *Van:* Cory Quammen <cory.quam...@kitware.com> > *Verzonden:* vrijdag 20 oktober 2017 14:48 > *Aan:* A . > *CC:* paraview@paraview.org > *Onderwerp:* Re: [Paraview] Is it possible to group vtkImageData objects? > > Hi Jimmy, > > Try "Append Attributes". This will yield a single vtkImageData that has > several point data arrays, or "attributes". As long as the input > vtkImageData have the same dimensions, this filter will do what you like. > You can then pick which array you want to view with the Volume > representation. > > To extract a vtkImageData with one or a subset of the appended arrays, you > can use "Extract Component" or "Pass Arrays", respectively. > > HTH, > Cory > > On Fri, Oct 20, 2017 at 7:29 AM, A . <super_ac...@hotmail.com> wrote: > >> Dear community, >> >> >> Is it possible with ParaView to group vtkImageData objects in a single >> file format? I would like to import a couple of regular grids (i.e. >> vtkImageData objects) as a single file, rather than as grid_1.pvti, >> grid_2.pvti, etc... Once imported I would like to simply select which grid >> to visualize (with volume rendering). >> >> >> I tried the following structures already: >> >> >> >> 1. vktMultiBlockDataSet containing N vtkImageData objects as child >> blocks. >> 2. vtkMultiBlockDataSet containing 1 vtkMultiPieceDataSet, which >> contains N vtkImageData objects as child pieces >> >> >> The first structure kind of works, but in order to visualize one >> vtkImageData I need to "Extract Block" and "Resample to Image", which >> doesn't result in the exact same image when doing volume rendering. >> The second structure mixes my vtkImageData into a single data object. I >> cannot do something like "Extract Piece". >> >> The main reason I want to have a single data structure containing all my >> grids is so that I can pass it to my Python CoProcess Catalyst pipeline. >> The number of grids can vary so I cannot simply hardcode the pipeline for a >> fixed number of grids. >> >> If there is a way to make this work, please let me know! >> >> Best, >> Jimmy >> >> >> _______________________________________________ >> 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 >> >> > > > -- > Cory Quammen > Staff R&D Engineer > Kitware, Inc. > -- Cory Quammen Staff R&D Engineer Kitware, Inc.
_______________________________________________ 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