Hi all,<div><br></div><div>I want streamlines to be colored according to scalar values, but they are all white. Can someone help me figure out what&#39;s wrong with my code? Thanks  -Yifei</div><div><br></div><div># vector field data</div>
<div>grid = vtkStructuredGrid()</div><div>grid.SetPoints(points)</div><div>grid.GetPointData().SetVectors(vectors)</div><div><br></div><div>....</div><div>streamer = vtkStreamTracer()</div><div>...</div><div># show streamlines using ribbon</div>
<div>rf = vtkRibbonFilter()</div><div>rf.SetInputConnection(streamer.GetOutputPort())</div><div><br></div><div>streamMapper = vtkPolyDataMapper()</div><div>streamMapper.SetInputConnection(rf.GetOutputPort())</div><div><br>
</div><div># I thought the following lines should make it </div><div>streamMapper.ScalarVisibilityOn()</div><div>streamMapper.SetScalarRange(0.0, grid.GetPointData().GetVectors().GetMaxNorm())</div>