Wyatt, Here's a simple script that sets up a 200 x 200 image data object like you might use for displaying a heat map.
#### import the simple module from the paraview from paraview.simple import * #### disable automatic camera reset on 'Show' paraview.simple._DisableFirstRenderCameraReset() # Create a 2D image data object from paraview import vtk vtk_image = vtk.vtkImageData() vtk_image.SetDimensions(200, 200, 1) # Your size may vary # Wrap data in numpy interface from vtk.numpy_interface import dataset_adapter as dsa image = dsa.WrapDataObject(vtk_image) # Create numpy array. Set your data here import numpy as np arr = np.zeros(200*200) # Set the data in the image object image.PointData.append(arr, 'myarray') # Now set up a ParaView proxy for the image data tp = PVTrivialProducer() tp.GetClientSideObject().SetOutput(vtk_image) Show(tp) # Set up filters, display options, etc. below You can modify it as needed to set up your data array as a numpy array. Hope that helps, Cory On Mon, Jan 29, 2018 at 3:27 PM, Wyatt Spear <wsp...@cs.uoregon.edu> wrote: > I think the python scripting with embedded data is worth a try. I'm not > familiar with the built-in vs other server modes so I'm not sure what kind > of restrictions that entails. Probably my ultimate goal is to build a > reader plugin that will parse the data out of my application's native format > but generating a script seems like a decent interim solution. > > Thanks, > Wyatt > > On Mon, Jan 29, 2018 at 5:57 AM, Cory Quammen <cory.quam...@kitware.com> > wrote: >> >> Wyatt, >> >> ParaView provides extensive Python scriptability. One solution is to >> write out a Python script from your program. Within the Pythons >> script, you set up the data, set up filters and modify visualization >> settings just as you wish. Once it is loaded, you can continue to >> explore your data by creating new filters, changing visualization >> parameters, and so on. >> >> Creating example Python scripts is easy using the Trace functionality >> (Tools menu -> Start Trace) - you just interact with the UI and the >> equivalent Python operations will be written to the trace file. Use >> such a trace as a basis for what is written from your program. >> >> To save the data to the Python script and then load it is a different >> use case from what we typical support, but I think it is doable. It >> would just look a little ugly (and it would only work in built-in >> server mode). Basically, you could write out your data in a NumPy >> array within the script, as if you were entering the array information >> by hand, then provide that data to what's called a TrivialProducer >> source. This source would stand in place of a reader. There is a >> little bit of code required to do that that isn't super obvious - >> before sketching it out, would this approach work for your needs? >> >> Thanks, >> Cory >> >> >> >> On Sun, Jan 28, 2018 at 10:10 PM, Wyatt Spear <wsp...@cs.uoregon.edu> >> wrote: >> > Thanks, I'll take a look at this. My use case is pretty severely >> > underutilizing ParaView's capabilities though. I'm rendering very large >> > multi-variable heat maps. So color mapped 2d points are all I need >> > rendered, >> > (until I can figure out how to map glyph height to another variable). >> > >> > =Wyatt >> > >> > >> > On Sat, Jan 27, 2018 at 8:52 AM Samuel Key <samuel...@bresnan.net> >> > wrote: >> >> >> >> Wyatt-- >> >> >> >> While ParaView can read CSV files and subsequently generate images, the >> >> CSV format for simulation results limits the functionality available to >> >> you >> >> in ParaView. My suggestion is that you write your simulation results in >> >> a >> >> format that contains geometry information, as well as, Point and Cell >> >> centered values like displacement, velocity, acceleration, temperature, >> >> concentrations, volume fractions, et cetera. >> >> >> >> The attached document is a good place to start. (This document is very >> >> concise and very complete, but the information is only written down >> >> once. As >> >> a result, the format information is sometimes not located where you >> >> need >> >> it.) >> >> >> >> If your simulations are concerned with the deformation of 3-D solids >> >> and >> >> structures, I can provide you with FORTRAN95 routines that you can use >> >> to >> >> write VTK-formatted simulation results. >> >> >> >> Once you can generate VTK-formatted datum sets, The File > Save State >> >> command will generate *.pvsm files that will let you "recreate" a >> >> previously >> >> constructed Browser Pipeline. (The PV *.pvsm reader gives you the >> >> opportunity to select a different datum set.) >> >> >> >> There is a small two-cell mesh file attached that might be helpful to >> >> you >> >> when constructing a VTK-formatted file writer in your application. >> >> >> >> --Sam >> >> >> >> >> >> >> >> >> >> >> >> On 1/27/2018 8:46 AM, Wyatt Spear wrote: >> >> >> >> Greetings, >> >> >> >> Currently I am using my own application to generate a simple CSV file >> >> which can be loaded up in ParaView. I then create the visualization I >> >> want >> >> with a few manual filter operations. >> >> >> >> What I would like is to generate a file, preferably still with a field >> >> for >> >> CSV-like raw data, that tells ParaView to load the data and then apply >> >> the >> >> filters I want, so the view I want is immediately available upon >> >> loading the >> >> file and the raw data is available if I want to try other filters. >> >> >> >> I've taken a look at vpt and pvd files saved from my intended view but >> >> I'm >> >> not seeing much correspondence between the CSV data I generate, the >> >> filters >> >> I apply and the data fields in there. I'm also pondering the save-state >> >> and >> >> trace/macro features of ParaView but I suspect those won't quite square >> >> with >> >> my aim of generating a file in an external application which includes >> >> data. >> >> >> >> Could someone point me toward a proper way to do this? If it comes down >> >> to >> >> plugin development I'm willing to take a look at that. >> >> >> >> Thanks, >> >> Wyatt Spear >> >> >> >> >> >> _______________________________________________ >> >> 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: >> >> https://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 >> >> >> >> Search the list archives at: http://markmail.org/search/?q=ParaView >> >> >> >> Follow this link to subscribe/unsubscribe: >> >> https://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 >> > >> > Search the list archives at: http://markmail.org/search/?q=ParaView >> > >> > Follow this link to subscribe/unsubscribe: >> > https://paraview.org/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: https://paraview.org/mailman/listinfo/paraview
