Hi all. I'm a newbie to both ParaView and Python scripting. I have a large number of *.raw files that I wish to load, visualize and save via a screenshot. To do this, I used the start/stop trace feature to produce a python script for one instance, edited the python script by adding a for loop, then ran it with pvbatch. The script produces the correct output, but it takes progressively longer on each iteration. To give you an idea, I started a batch of 200 files yesterday afternoon -- the first one took 10 seconds, but right now it's only on 180! I know that in Matlab, allocating and re-allocating progressively larger memory chunks in a loop can cause this behavior, but I don't see this happening here. Below is my script -- I appreciate any help anyone can give.
for count in range(1,204): try: paraview.simple except: from paraview.simple import * paraview.simple._DisableFirstRenderCameraReset() filename='/home/andy/Desktop/L2-1 Dicom/data8/rho_180x180x180_frame%04d_subs01_total.raw' % (count) rho_180x180x180_frame0010_subs01_total_raw = ImageReader( FilePrefix=filename ) rho_180x180x180_frame0010_subs01_total_raw.DataExtent = [0, 179, 0, 179, 0, 179] rho_180x180x180_frame0010_subs01_total_raw.DataScalarType = 'unsigned char' RenderView1 = GetRenderView() a1_ImageFile_PVLookupTable = GetLookupTableForArray( "ImageFile", 1, NanColor=[0.25, 0.0, 0.0], RGBPoints=[0.0, 0.23, 0.299, 0.754, 255.0, 0.706, 0.016, 0.15], VectorMode='Magnitude', ColorSpace='Diverging', ScalarRangeInitialized=1.0 ) a1_ImageFile_PiecewiseFunction = CreatePiecewiseFunction( Points=[0.0, 0.0, 0.5, 0.0, 255.0, 1.0, 0.5, 0.0] ) DataRepresentation1 = Show() DataRepresentation1.EdgeColor = [0.0, 0.0, 0.5000076295109483] DataRepresentation1.SelectionPointFieldDataArrayName = 'ImageFile' DataRepresentation1.ScalarOpacityFunction = a1_ImageFile_PiecewiseFunction DataRepresentation1.ColorArrayName = 'ImageFile' DataRepresentation1.ScalarOpacityUnitDistance = 1.7320508075688779 DataRepresentation1.LookupTable = a1_ImageFile_PVLookupTable DataRepresentation1.Representation = 'Volume' DataRepresentation1.ScaleFactor = 17.900000000000002 RenderView1.CameraViewUp = [-0.24428917240633777, 0.2192776215931415, 0.9445846308899386] RenderView1.CameraPosition = [495.4123489395223, -304.665940440324, 285.97976015645276] RenderView1.CameraClippingRange = [296.6155313125564, 980.96172641737] RenderView1.CameraFocalPoint = [89.5, 89.50000000000001, 89.5] RenderView1.CameraParallelScale = 155.0185472774145 RenderView1.CenterOfRotation = [89.5, 89.5, 89.5] filename_out='/home/andy/Desktop/L2-1 Dicom/data8/frame_%04d.bmp' % (count) WriteImage(filename_out)
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