Sorry you had such trouble. Here is an example you can play with. It generates a Rectilinear Grid, in parallel, on any number of MPI tasks. You set the dims[] array, and ParaView does the splitting.
Tested with 5.2. ----------------- Jean M. Favre Swiss National Supercomputing Center CH-6900 Lugano Switzerland
# Demonstration script for paraview version 5.2 # written by Jean M. Favre, Swiss National Supercomputing Centre # tested Fri Dec 16 08:24:21 CET 2016 # # This script generates a rectilinear grid. It lets ParaView automatically # distributes the grid among multiple MPI tasks. # #### import the simple module from the paraview from paraview.simple import * #### disable automatic camera reset on 'Show' paraview.simple._DisableFirstRenderCameraReset() # Create a new 'Render View' viewRG = GetRenderView() Script1 = """ import numpy as np from vtk.numpy_interface import algorithms as algs from vtk.numpy_interface import dataset_adapter as dsa executive = self.GetExecutive() outInfo = executive.GetOutputInformation(0) pid = outInfo.Get(executive.UPDATE_PIECE_NUMBER()) exts = [executive.UPDATE_EXTENT().Get(outInfo, i) for i in xrange(6)] whole = [executive.WHOLE_EXTENT().Get(outInfo, i) for i in xrange(6)] dims = [exts[1]-exts[0]+1, exts[3]-exts[2]+1, exts[5]-exts[4]+1] global_dims = [whole[1]-whole[0]+1, whole[3]-whole[2]+1, whole[5]-whole[4]+1] output.SetExtent(exts) xaxis = np.linspace(0., 1., global_dims[0])[exts[0]:exts[1]+1] yaxis = np.linspace(0.,1., global_dims[1])[exts[2]:exts[3]+1] zaxis = np.linspace(0., 1., global_dims[2])[exts[4]:exts[5]+1] xaxis = xaxis**2 yaxis = np.sqrt(yaxis) zaxis = zaxis*np.sqrt(zaxis) output.SetXCoordinates(dsa.numpyTovtkDataArray( xaxis , "X")) output.SetYCoordinates(dsa.numpyTovtkDataArray( yaxis , "Y")) output.SetZCoordinates(dsa.numpyTovtkDataArray( zaxis , "Z")) xc, yc, zc = np.meshgrid(zaxis, yaxis, xaxis, indexing="ij") data = np.sqrt(xc**2 + yc**2 + zc**2) output.PointData.append(data.ravel(), "scalar") """ Script2 = """ dims = [11,11,11] executive = self.GetExecutive() outInfo = executive.GetOutputInformation(0) outInfo.Set(executive.WHOLE_EXTENT(), 0, dims[0]-1, 0, dims[1]-1, 0, dims[2]-1) outInfo.Set(vtk.vtkAlgorithm.CAN_PRODUCE_SUB_EXTENT(), 1) """ # create a new 'Programmable Source' programmableSource1 = ProgrammableSource() programmableSource1.OutputDataSetType = 'vtkRectilinearGrid' programmableSource1.Script = Script1 programmableSource1.ScriptRequestInformation = Script2 programmableSource1.PythonPath = '' rep1 = Show() rep1.Representation = 'Surface With Edges' Render() viewRG.ResetCamera() Render()
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