<div dir="ltr">Hi Matei,<div><br></div><div>Do your vectors really have up to 672 components? That's fine, just surprisingly high.</div><div><br></div><div>Changing among vector components seems to be working fine in ParaView 4.3.1 On Windows. Here is the test script I ran.</div><div><br></div><div><div>#### import the simple module from the paraview</div><div>from paraview.simple import *</div><div>#### disable automatic camera reset on 'Show'</div><div>paraview.simple._DisableFirstRenderCameraReset()</div><div><br></div><div># create a new 'Sphere'</div><div>sphere1 = Sphere()</div><div><br></div><div># get active view</div><div>renderView1 = GetActiveViewOrCreate('RenderView')</div><div># uncomment following to set a specific view size</div><div># renderView1.ViewSize = [659, 468]</div><div><br></div><div># show data in view</div><div>sphere1Display = Show(sphere1, renderView1)</div><div># trace defaults for the display properties.</div><div>sphere1Display.ColorArrayName = [None, '']</div><div><br></div><div># reset view to fit data</div><div>renderView1.ResetCamera()</div><div><br></div><div># set scalar coloring</div><div>ColorBy(sphere1Display, ('POINTS', 'Normals'))</div><div><br></div><div># rescale color and/or opacity maps used to include current data range</div><div>sphere1Display.RescaleTransferFunctionToDataRange(True)</div><div><br></div><div># show color bar/color legend</div><div>sphere1Display.SetScalarBarVisibility(renderView1, True)</div><div><br></div><div># get color transfer function/color map for 'Normals'</div><div>normalsLUT = GetColorTransferFunction('Normals')</div><div><br></div><div># get opacity transfer function/opacity map for 'Normals'</div><div>normalsPWF = GetOpacityTransferFunction('Normals')</div><div><br></div><div>#change array component used for coloring</div><div>normalsLUT.RGBPoints = [-0.9749279022216797, 0.231373, 0.298039, 0.752941, 0.0, 0.865003, 0.865003, 0.865003, 0.9749279022216797, 0.705882, 0.0156863, 0.14902]</div><div>normalsLUT.VectorMode = 'Component'</div><div><br></div><div># Properties modified on normalsPWF</div><div>normalsPWF.Points = [-0.9749279022216797, 0.0, 0.5, 0.0, 0.9749279022216797, 1.0, 0.5, 0.0]</div><div><br></div><div>normalsLUT.VectorComponent = 0</div><div>RenderAllViews()</div><div>SaveScreenshot('component0.png')</div><div><br></div><div>#change array component used for coloring</div><div>normalsLUT.VectorComponent = 1</div><div>RenderAllViews()</div><div>SaveScreenshot('component1.png')</div><div><br></div><div>#change array component used for coloring</div><div>normalsLUT.RGBPoints = [-1.0, 0.231373, 0.298039, 0.752941, 0.0, 0.865003, 0.865003, 0.865003, 1.0, 0.705882, 0.0156863, 0.14902]</div><div>normalsLUT.VectorComponent = 2</div><div>RenderAllViews()</div><div>SaveScreenshot('component2.png')</div><div><br></div><div># Properties modified on normalsPWF</div><div>normalsPWF.Points = [-1.0, 0.0, 0.5, 0.0, 1.0, 1.0, 0.5, 0.0]</div><div><br></div><div>#### saving camera placements for all active views</div><div><br></div><div># current camera placement for renderView1</div><div>renderView1.CameraPosition = [0.0, 0.0, 3.2903743041222895]</div><div>renderView1.CameraParallelScale = 0.8516115354228021</div><div><br></div><div>#### uncomment the following to render all views</div><div>RenderAllViews()</div><div># alternatively, if you want to write images, you can use SaveScreenshot(...).</div></div><div><br></div><div>Can you confirm this works on your ParaView installation? There might be some errors about file writing if the current working directory on your system is write-protected - you can ignore those.</div><div><br></div><div>Cheers,</div><div>Cory</div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Aug 20, 2015 at 6:54 PM, Matei Stroila <span dir="ltr"><<a href="mailto:matei.stroila@gmail.com" target="_blank">matei.stroila@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hi, <div><br></div><div>I am using ParaView 4.3.1 on Mac OSX. </div><div>I used to be able to loop through the components of an attribute array and change the color of the representation. I am not sure why this is no longer working (don't recall when it was working, maybe 4.2?). It does work from GUI. This is the GUI trace for changing the color attribute three times:</div><div><pre style="margin-top:12px;margin-bottom:0px"><span style="font-family:'Courier New,courier';font-style:italic;color:rgb(64,128,128)">#### import the simple module from the paraview</span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="font-family:'Courier New,courier';font-weight:600;color:rgb(0,128,0)">from</span><span style="font-family:'Courier New,courier'"> </span><span style="font-family:'Courier New,courier';font-weight:600;color:rgb(0,0,255)">paraview.simple</span><span style="font-family:'Courier New,courier'"> </span><span style="font-family:'Courier New,courier';font-weight:600;color:rgb(0,128,0)">import</span><span style="font-family:'Courier New,courier'"> </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">*</span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="font-family:'Courier New,courier';font-style:italic;color:rgb(64,128,128)">#### disable automatic camera reset on 'Show'</span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="font-family:'Courier New,courier'">paraview</span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">.</span><span style="font-family:'Courier New,courier'">simple</span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">.</span><span style="font-family:'Courier New,courier'">_DisableFirstRenderCameraReset()</span></pre><pre style="margin-top:0px;margin-bottom:0px;font-family:'Courier New,courier'"><br></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="font-family:'Courier New,courier';font-style:italic;color:rgb(64,128,128)"># get color transfer function/color map for 'SpeedArray'</span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="font-family:'Courier New,courier'">speedArrayLUT </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">=</span><span style="font-family:'Courier New,courier'"> GetColorTransferFunction(</span><span style="font-family:'Courier New,courier';color:rgb(186,33,33)">'SpeedArray'</span><span style="font-family:'Courier New,courier'">)</span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="font-family:'Courier New,courier'">speedArrayLUT</span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">.</span><span style="font-family:'Courier New,courier'">InterpretValuesAsCategories </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">=</span><span style="font-family:'Courier New,courier'"> </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0</span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="font-family:'Courier New,courier'">speedArrayLUT</span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">.</span><span style="font-family:'Courier New,courier'">EnableOpacityMapping </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">=</span><span style="font-family:'Courier New,courier'"> </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0</span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="font-family:'Courier New,courier'">speedArrayLUT</span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">.</span><span style="font-family:'Courier New,courier'">RGBPoints </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">=</span><span style="font-family:'Courier New,courier'"> [</span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0.0</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">1.0</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0.0</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0.0</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">150.0</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0.0</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0.0</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">1.0</span><span style="font-family:'Courier New,courier'">]</span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="font-family:'Courier New,courier'">speedArrayLUT</span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">.</span><span style="font-family:'Courier New,courier'">UseLogScale </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">=</span><span style="font-family:'Courier New,courier'"> </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0</span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="font-family:'Courier New,courier'">speedArrayLUT</span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">.</span><span style="font-family:'Courier New,courier'">LockScalarRange </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">=</span><span style="font-family:'Courier New,courier'"> </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">1</span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="font-family:'Courier New,courier'">speedArrayLUT</span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">.</span><span style="font-family:'Courier New,courier'">ColorSpace </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">=</span><span style="font-family:'Courier New,courier'"> </span><span style="font-family:'Courier New,courier';color:rgb(186,33,33)">'HSV'</span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="font-family:'Courier New,courier'">speedArrayLUT</span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">.</span><span style="font-family:'Courier New,courier'">UseBelowRangeColor </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">=</span><span style="font-family:'Courier New,courier'"> </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0</span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="font-family:'Courier New,courier'">speedArrayLUT</span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">.</span><span style="font-family:'Courier New,courier'">BelowRangeColor </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">=</span><span style="font-family:'Courier New,courier'"> [</span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0.0</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0.0</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0.0</span><span style="font-family:'Courier New,courier'">]</span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="font-family:'Courier New,courier'">speedArrayLUT</span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">.</span><span style="font-family:'Courier New,courier'">UseAboveRangeColor </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">=</span><span style="font-family:'Courier New,courier'"> </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0</span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="font-family:'Courier New,courier'">speedArrayLUT</span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">.</span><span style="font-family:'Courier New,courier'">AboveRangeColor </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">=</span><span style="font-family:'Courier New,courier'"> [</span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">1.0</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">1.0</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">1.0</span><span style="font-family:'Courier New,courier'">]</span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="font-family:'Courier New,courier'">speedArrayLUT</span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">.</span><span style="font-family:'Courier New,courier'">NanColor </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">=</span><span style="font-family:'Courier New,courier'"> [</span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0.498039</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0.498039</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0.498039</span><span style="font-family:'Courier New,courier'">]</span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="font-family:'Courier New,courier'">speedArrayLUT</span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">.</span><span style="font-family:'Courier New,courier'">Discretize </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">=</span><span style="font-family:'Courier New,courier'"> </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">1</span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="font-family:'Courier New,courier'">speedArrayLUT</span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">.</span><span style="font-family:'Courier New,courier'">NumberOfTableValues </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">=</span><span style="font-family:'Courier New,courier'"> </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">256</span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="font-family:'Courier New,courier'">speedArrayLUT</span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">.</span><span style="font-family:'Courier New,courier'">ScalarRangeInitialized </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">=</span><span style="font-family:'Courier New,courier'"> </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">1.0</span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="font-family:'Courier New,courier'">speedArrayLUT</span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">.</span><span style="font-family:'Courier New,courier'">HSVWrap </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">=</span><span style="font-family:'Courier New,courier'"> </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0</span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="font-family:'Courier New,courier'">speedArrayLUT</span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">.</span><span style="font-family:'Courier New,courier'">VectorComponent </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">=</span><span style="font-family:'Courier New,courier'"> </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">96</span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="font-family:'Courier New,courier'">speedArrayLUT</span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">.</span><span style="font-family:'Courier New,courier'">VectorMode </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">=</span><span style="font-family:'Courier New,courier'"> </span><span style="font-family:'Courier New,courier';color:rgb(186,33,33)">'Component'</span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="font-family:'Courier New,courier'">speedArrayLUT</span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">.</span><span style="font-family:'Courier New,courier'">AllowDuplicateScalars </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">=</span><span style="font-family:'Courier New,courier'"> </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">1</span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="font-family:'Courier New,courier'">speedArrayLUT</span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">.</span><span style="font-family:'Courier New,courier'">Annotations </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">=</span><span style="font-family:'Courier New,courier'"> []</span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="font-family:'Courier New,courier'">speedArrayLUT</span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">.</span><span style="font-family:'Courier New,courier'">IndexedColors </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">=</span><span style="font-family:'Courier New,courier'"> []</span></pre><pre style="margin-top:0px;margin-bottom:0px;font-family:'Courier New,courier'"><br></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="font-family:'Courier New,courier';font-style:italic;color:rgb(64,128,128)"># get opacity transfer function/opacity map for 'SpeedArray'</span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="font-family:'Courier New,courier'">speedArrayPWF </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">=</span><span style="font-family:'Courier New,courier'"> GetOpacityTransferFunction(</span><span style="font-family:'Courier New,courier';color:rgb(186,33,33)">'SpeedArray'</span><span style="font-family:'Courier New,courier'">)</span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="font-family:'Courier New,courier'">speedArrayPWF</span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">.</span><span style="font-family:'Courier New,courier'">Points </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">=</span><span style="font-family:'Courier New,courier'"> [</span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0.0</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0.0</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0.5</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0.0</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">150.0</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">1.0</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0.5</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0.0</span><span style="font-family:'Courier New,courier'">]</span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="font-family:'Courier New,courier'">speedArrayPWF</span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">.</span><span style="font-family:'Courier New,courier'">AllowDuplicateScalars </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">=</span><span style="font-family:'Courier New,courier'"> </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">1</span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="font-family:'Courier New,courier'">speedArrayPWF</span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">.</span><span style="font-family:'Courier New,courier'">ScalarRangeInitialized </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">=</span><span style="font-family:'Courier New,courier'"> </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">1</span></pre><pre style="margin-top:0px;margin-bottom:0px;font-family:'Courier New,courier';color:rgb(102,102,102)"><br></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="font-family:'Courier New,courier';font-style:italic;color:rgb(64,128,128)">#change array component used for coloring</span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="font-family:'Courier New,courier'">speedArrayLUT</span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">.</span><span style="font-family:'Courier New,courier'">RGBPoints </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">=</span><span style="font-family:'Courier New,courier'"> [</span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">2.0</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">1.0</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0.0</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0.0</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">134.079086144</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0.0</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0.0</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">1.0</span><span style="font-family:'Courier New,courier'">]</span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="font-family:'Courier New,courier'">speedArrayLUT</span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">.</span><span style="font-family:'Courier New,courier'">VectorComponent </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">=</span><span style="font-family:'Courier New,courier'"> </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">111</span></pre><pre style="margin-top:0px;margin-bottom:0px;font-family:'Courier New,courier';color:rgb(102,102,102)"><br></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="font-family:'Courier New,courier';font-style:italic;color:rgb(64,128,128)"># Properties modified on speedArrayPWF</span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="font-family:'Courier New,courier'">speedArrayPWF</span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">.</span><span style="font-family:'Courier New,courier'">Points </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">=</span><span style="font-family:'Courier New,courier'"> [</span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">2.0</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0.0</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0.5</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0.0</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">134.079086144</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">1.0</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0.5</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0.0</span><span style="font-family:'Courier New,courier'">]</span></pre><pre style="margin-top:0px;margin-bottom:0px;font-family:'Courier New,courier'"><br></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="font-family:'Courier New,courier';font-style:italic;color:rgb(64,128,128)">#change array component used for coloring</span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="font-family:'Courier New,courier'">speedArrayLUT</span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">.</span><span style="font-family:'Courier New,courier'">RGBPoints </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">=</span><span style="font-family:'Courier New,courier'"> [</span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">2.0</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">1.0</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0.0</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0.0</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">131.302099153</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0.0</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0.0</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">1.0</span><span style="font-family:'Courier New,courier'">]</span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="font-family:'Courier New,courier'">speedArrayLUT</span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">.</span><span style="font-family:'Courier New,courier'">VectorComponent </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">=</span><span style="font-family:'Courier New,courier'"> </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">127</span></pre><pre style="margin-top:0px;margin-bottom:0px;font-family:'Courier New,courier';color:rgb(102,102,102)"><br></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="font-family:'Courier New,courier';font-style:italic;color:rgb(64,128,128)"># Properties modified on speedArrayPWF</span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="font-family:'Courier New,courier'">speedArrayPWF</span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">.</span><span style="font-family:'Courier New,courier'">Points </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">=</span><span style="font-family:'Courier New,courier'"> [</span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">2.0</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0.0</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0.5</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0.0</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">131.302099153</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">1.0</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0.5</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0.0</span><span style="font-family:'Courier New,courier'">]</span></pre><pre style="margin-top:0px;margin-bottom:0px;font-family:'Courier New,courier'"><br></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="font-family:'Courier New,courier';font-style:italic;color:rgb(64,128,128)">#change array component used for coloring</span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="font-family:'Courier New,courier'">speedArrayLUT</span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">.</span><span style="font-family:'Courier New,courier'">RGBPoints </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">=</span><span style="font-family:'Courier New,courier'"> [</span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">2.0</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">1.0</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0.0</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0.0</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">143.468496117</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0.0</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0.0</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">1.0</span><span style="font-family:'Courier New,courier'">]</span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="font-family:'Courier New,courier'">speedArrayLUT</span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">.</span><span style="font-family:'Courier New,courier'">VectorComponent </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">=</span><span style="font-family:'Courier New,courier'"> </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">175</span></pre><pre style="margin-top:0px;margin-bottom:0px;font-family:'Courier New,courier';color:rgb(102,102,102)"><br></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="font-family:'Courier New,courier';font-style:italic;color:rgb(64,128,128)"># Properties modified on speedArrayPWF</span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="font-family:'Courier New,courier'">speedArrayPWF</span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">.</span><span style="font-family:'Courier New,courier'">Points </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">=</span><span style="font-family:'Courier New,courier'"> [</span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">2.0</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0.0</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0.5</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0.0</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">143.468496117</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">1.0</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0.5</span><span style="font-family:'Courier New,courier'">, </span><span style="font-family:'Courier New,courier';color:rgb(102,102,102)">0.0</span><span style="font-family:'Courier New,courier'">]</span></pre><pre style="margin-top:0px;margin-bottom:0px;font-family:'Courier New,courier'"><br></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="font-family:'Courier New,courier';font-style:italic;color:rgb(64,128,128)">#### uncomment the following to render all views</span></pre><pre style="margin-top:0px;margin-bottom:0px"><span style="font-family:'Courier New,courier';font-style:italic;color:rgb(64,128,128)"># RenderAllViews()</span></pre><pre style="margin-top:0px;margin-bottom:12px"><span style="font-family:'Courier New,courier';font-style:italic;color:rgb(64,128,128)"># alternatively, if you want to write images, you can use SaveScreenshot(...).</span></pre></div><div><br></div><div>I try to do the same from a script, this time keeping the color map the same (not rescaling), and that does not work, the color of the geometry stays the same:</div><div><br></div><div>###############</div><div><i>speedArrayLUT = GetColorTransferFunction('SpeedArray')<br></i></div><div><div><i>speedArrayLUT.RGBPoints = [0.0, 1.0, 0.0, 0.0, 150.0, 0.0, 0.0, 1.0]</i></div><div><i>speedArrayLUT.LockScalarRange = 1</i></div><div><i>speedArrayLUT.ColorSpace = 'HSV'</i></div><div><i>speedArrayLUT.NanColor = [0.498039, 0.498039, 0.498039]</i></div><div><i>speedArrayLUT.ScalarRangeInitialized = 1.0</i></div><div><i>speedArrayLUT.VectorComponent = 671</i></div><div><i>speedArrayLUT.VectorMode = 'Component'</i></div><div><i><br></i></div><div><i>speedArrayPWF = GetOpacityTransferFunction('SpeedArray')</i><br></div><div><i>speedArrayPWF.Points = [0.0, 0.0, 0.5, 0.0, 150.0, 1.0, 0.5, 0.0]</i></div><div><i>speedArrayPWF.ScalarRangeInitialized = 1</i></div><div><i><br></i></div><div><i>attributesLUTColorBar = GetScalarBar(speedArrayLUT, renderView1)</i></div><div><i>attributesLUTColorBar.Title = 'Speed (km/h)'</i></div><div><i><br></i></div><div><i>for i in range_15min: </i></div><div><i><span style="white-space:pre-wrap"> </span>speedArrayLUT.VectorComponent = i<br></i></div></div><div><i> Render()</i></div><div>#################</div><div><br></div><div>If I add: </div><div><br></div><div><i>readerDisplay.RescaleTransferFunctionToDataRange() </i></div><div><br></div><div>in the loop, I do see the range of the color bar changing with each iteration, but the color of the rendered geometry does not change. Is there a way to force an update on the readerDisplay (where, <i>readerDisplay = GetDisplayProperties(reader, view=renderView1)</i>)</div><div><br></div><div>Thanks for any suggestions. </div><span class="HOEnZb"><font color="#888888"><div><br></div><div>Matei</div><div><br></div><div><br></div><div>
<pre style="margin-top:12px;margin-bottom:0px"><br></pre><pre style="margin-top:0px;margin-bottom:12px"></pre></div></font></span></div>
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