[vtkusers] re:InterpolateScalarsBeforeMapping problem

[Yixun Liu]

Hi,
1. Firstly change you surface mesh,if not vtkDataSet, to vtkPolyData  named as surface.

2.  vtkDoubleArray *scalars = vtkDoubleArray::New(); Assign the deformation magnitude at each node in the surface mesh to this scalars.

3. surface->GetPointData()->SetScalars(scalars);
 
4.create the lookup table
 vtkLookupTable *satLut = vtkLookupTable::New();
    satLut->SetTableRange (0, 256);
    satLut->SetHueRange (.0, .0);
    satLut->SetSaturationRange (1, 1);
    satLut->SetValueRange (0.3, 1);
 satLut->Build();

5.mapper
 map->SetLookupTable(satLut);
 map->SetColorModeToMapScalars();
 map->SetScalarModeToUsePointData();
 map->SetScalarRange(profile->GetScalarRange());

6.actor
vtkActor *act = vtkActor::New();
act->SetMapper(map);

Hope it help.

Yixun Liu
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.vtk.org/pipermail/vtkusers/attachments/20060905/1ca8a740/attachment.htm>