<div dir="ltr">Kurt,<div><br></div><div>Nothing immediately jumps out at me as a problem in your code.</div><div><br></div><div>Do you have a small sample file that shows the problem that you can share?</div><div><br></div><div>Thanks,</div><div>Cory</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Oct 4, 2016 at 4:44 PM, Kurt Sansom <span dir="ltr"><<a href="mailto:kayarre@gmail.com" target="_blank">kayarre@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> I have some unstructured data, no triangles, just points and normals.</div><div><br></div><div>I am trying to write those to a file in the vtp format using the python bindings and then load the data in paraview and apply a glyph filter to view the vectors. but the glyph filter doesn't appear to work eventhough the data looks alright in the vtp file, what am I missing?</div><div><br></div><div>here is the code snippet.</div><div><br></div><div><div> #write normals</div><div> points = vtk.vtkPoints()</div><div> verts = vtk.vtkCellArray()</div><div> polydata_pts = vtk.vtkPolyData()</div><div> </div><div> pointNormalsArray = vtk.vtkDoubleArray()</div><div> pointNormalsArray.<wbr>SetNumberOfComponents(3)</div><div><br></div><div> for i in range(clipSeedIds.<wbr>GetNumberOfIds()):</div><div><br></div><div> seedId = clipSeedIds.GetId(i)</div><div><br></div><div> locator = vtk.vtkPointLocator()</div><div> locator.SetDataSet(<wbr>clippedSurface)</div><div> locator.BuildLocator()</div><div><br></div><div> seedPoint = self.Surface.GetPoint(seedId)</div><div> seedPointId = locator.FindClosestPoint(<wbr>seedPoint)</div><div><br></div><div> planeEstimator = vtkvmtk.<wbr>vtkvmtkPolyDataNormalPlaneEsti<wbr>mator()</div><div> planeEstimator.SetInputData(<wbr>clippedSurface)</div><div> planeEstimator.<wbr>SetOriginPointId(seedPointId)</div><div> planeEstimator.Update()</div><div><br></div><div> plane = vtk.vtkPlane()</div><div> plane.SetOrigin(<wbr>planeEstimator.GetOrigin())</div><div> plane.SetNormal(<wbr>planeEstimator.GetNormal())</div><div><br></div><div> #testing the normal vector</div><div> </div><div> origin_pt = planeEstimator.GetOrigin()</div><div> normal_pt = planeEstimator.GetNormal()</div><div> </div><div> id = points.InsertNextPoint(origin_<wbr>pt)</div><div> verts.InsertNextCell(1) </div><div> verts.InsertCellPoint(id)</div><div> pointNormalsArray.<wbr>InsertNextTuple(normal_pt)</div><div> </div><div><br></div><div><br></div><div> #Add the points to the polydata container</div><div> polydata_pts.SetPoints(points)</div><div> polydata_pts.SetVerts(verts)</div><div> </div><div> # Add the normals to the points in the polydata</div><div> #polydata_pts.GetCellData().<wbr>SetNormals(pointNormalsArray)</div><div> polydata_pts.GetPointData().<wbr>SetNormals(pointNormalsArray)</div><div> polydata_pts.Modified()</div><div> </div><div> </div><div> writer = vtk.vtkXMLPolyDataWriter()</div><div> writer.SetDataModeToAscii()</div><div> writer.SetFileName(os.path.<wbr>join(</div><div> "/Users/sansomk/caseFiles/<wbr>ultrasound/cases/DSI003LER/<wbr>other", </div><div> "pts_out.vtp"))</div><div> writer.SetInputData(polydata_<wbr>pts)</div><div> writer.Write()</div><span class="HOEnZb"><font color="#888888"><div><br></div><div><br></div><div>~Kurt</div><div><div><br></div>-- <br><div class="m_-3855305662885353987gmail_signature">Kurt Sansom<br></div>
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature" data-smartmail="gmail_signature">Cory Quammen<br>Staff R&D Engineer<br>Kitware, Inc.</div>
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