<div dir="ltr">In that case, you can leave out the vtkLookupTable altogether and set the color in your actor instead<div><br></div><div>actor = vtk.vtkActor()</div><div>actor.SetMapper(mapper)</div><div>property = actor.GetProperty()</div><div>property.SetColor(<span style="font-size:12.8000001907349px">*rgb_cluster_mapping[cluster_</span><span style="font-size:12.8000001907349px">ind])</span></div><div><span style="font-size:12.8000001907349px"><br></span></div><div><span style="font-size:12.8000001907349px">HTH,</span></div><div><span style="font-size:12.8000001907349px">Cory</span></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Aug 4, 2015 at 2:15 PM, Tudor Achim <span dir="ltr"><<a href="mailto:tachim@cs.stanford.edu" target="_blank">tachim@cs.stanford.edu</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">No, I'd like the entire mesh to be one color (and opacity).</div><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Aug 4, 2015 at 2:04 PM, Cory Quammen <span dir="ltr"><<a href="mailto:cory.quammen@kitware.com" target="_blank">cory.quammen@kitware.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"><div><span style="font-size:12.8000001907349px">Are you trying to color map a particular data array in the contour?</span></div></div><div class="gmail_extra"><br><div class="gmail_quote"><div><div>On Mon, Aug 3, 2015 at 3:43 PM, Tudor Achim <span dir="ltr"><<a href="mailto:tachim@cs.stanford.edu" target="_blank">tachim@cs.stanford.edu</a>></span> wrote:<br></div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div><div dir="ltr"><div><div><div>Hi all,<br></div>I have a quick question about coloring vtkPolyMappers. I have the following code:<br><br>for cluster_ind in ...:<br><div style="margin-left:40px">threshold = vtk.vtkImageThreshold() <br>threshold.SetInputConnection(importer.GetOutputPort()) <br>threshold.ThresholdBetween(cluster_ind-0.1, cluster_ind+0.1)<br>threshold.ReplaceInOn() <br>threshold.SetInValue(0) <br>threshold.ReplaceOutOn() <br>threshold.SetOutValue(1)<br>threshold.Update() <br> <br>dmc = vtk.vtkDiscreteMarchingCubes() <br>dmc.SetInputConnection(threshold.GetOutputPort()) <br>dmc.GenerateValues(1, 1, 1) <br>dmc.Update() <br> <br>mapper = vtk.vtkPolyDataMapper() <br>mapper.SetInputConnection(dmc.GetOutputPort()) <br> <br>lut = vtk.vtkLookupTable() <br>lut.SetNumberOfTableValues(2) <br>lut.SetTableValue(0, 0, 0, 255) <br>lut.SetTableValue(1, *rgb_cluster_mapping[cluster_ind]) <br>lut.Build() <br>mapper.SetLookupTable(lut) <br>mapper.SetScalarModeToUseCellData() <br></div><br></div>However, when I run it only one of the mappers is colored correctly; the other one is just rendered as black. I can tell that it's rendered black because when I spin around the clusters in my viewer I can see it obstructing the other clusters. The intended colors are (0, 255, 0) and (88, 86, 214) (that's what's in rgb_cluster_mapping for these clusters).<br><br></div>Any ideas?<br></div>
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<br></blockquote></div><span><font color="#888888"><br><br clear="all"><div><br></div>-- <br><div>Cory Quammen<br>R&D Engineer<br>Kitware, Inc.</div>
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</div></div></blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature">Cory Quammen<br>R&D Engineer<br>Kitware, Inc.</div>
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