<div dir="ltr">Tom,<div><br></div><div>Just make sure that <span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">reader->Update(); was called before <span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">glyph3D->SetInputData(reader-></span><wbr style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial"><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">GetOutput());</span></span></div><div><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">But it would be better to use the connection instead of the dataset directly.</span></span></div><div><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><br></span></span></div><div><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.8px;font-style:normal;font-variant-ligatures:normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">Seb</span></span></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Apr 3, 2018 at 12:27 PM, Sgouros, Thomas <span dir="ltr"><<a href="mailto:thomas_sgouros@brown.edu" target="_blank">thomas_sgouros@brown.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">Hello all:<div><br></div><div>Can someone help me understand why this code works:</div><div><br></div><div><div>  vtkSmartPointer<vtkGlyph3D> glyph3D = vtkSmartPointer<vtkGlyph3D>::<wbr>New();</div><div>  glyph3D->SetSourceConnection(<wbr>cubeSource->GetOutputPort());<br></div><div>  glyph3D->SetInputData(<wbr>polydata);</div><div>  glyph3D->Update();</div></div><div><br></div><div>And this does not (nothing displayed)?</div><div><br></div><div><div>  vtkSmartPointer<vtkGlyph3D> glyph3D =  vtkSmartPointer<vtkGlyph3D>::<wbr>New();</div><div>  glyph3D->SetSourceConnection(<wbr>cubeSource->GetOutputPort());<br></div><div>  glyph3D->SetInputData(reader-><wbr>GetOutput());<br></div><div>  glyph3D->Update();<br></div></div><div><br></div><div>The first clip is from <a href="https://www.vtk.org/Wiki/VTK/Examples/Cxx/Filtering/Glyph3D" target="_blank">https://www.vtk.org/Wiki/<wbr>VTK/Examples/Cxx/Filtering/<wbr>Glyph3D</a></div><div><br></div><div>The 'reader' object is stolen from the ParticleReader example:</div><div><br></div><div><div>  vtkSmartPointer<<wbr>vtkParticleReader> reader = vtkSmartPointer<<wbr>vtkParticleReader>::New();</div><div>  reader->SetFileName ( filePath.c_str() );<br></div><div>  reader-><wbr>SetDataByteOrderToBigEndian();<br></div><div>  reader->Update();</div><div><br></div><div>The program compiles, but no data appears. It works fine (data appears) in the context of the ParticleReader example, where it shows all the data points. But I want to see them as glyphs, not little squares. I seem to be misunderstanding something fundamental, but not seeing what it could be.</div><div><br></div><div>Many thanks,</div><div><br></div><div> -Tom</div><div>  </div></div><div><br></div></div>
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