<DIV>Dear All,</DIV>
<DIV> </DIV>
<DIV>I've been trying to label some points with irregular geometery and topology. </DIV>
<DIV>I chose vtkPolyData as it says in the specification that is fine for 0 dimension data.</DIV>
<DIV> </DIV>
<DIV>Now I have a problem with labeling the data. </DIV>
<DIV>Could you please have a look at my simplified code and let me know what I'm doing wrong.</DIV>
<DIV> </DIV>
<DIV><FONT color=#008000 size=2>
<P>//Points</P></FONT><FONT size=2>
<P></FONT><FONT color=#0000ff size=2>float</FONT><FONT size=2> pointsArray[12] = {1,1,0,1,2,0,2,1,0,2,2,0};</P>
<P>vtkFloatArray *pointFloatArray = vtkFloatArray::New();</P>
<P>pointFloatArray->SetNumberOfComponents(3);</P>
<P>pointFloatArray->SetNumberOfTuples(dims[0]*dims[1]*dims[2]); </P>
<P>pointFloatArray->SetVoidArray(&pointsArray[0],12,1);</P>
<P>vtkPoints *points = vtkPoints::New();</P>
<P>points->SetData(pointFloatArray);</P>
<P> </P><FONT color=#008000 size=2>
<P>//Vectors</P></FONT><FONT size=2>
<P></FONT><FONT color=#0000ff size=2>float</FONT><FONT size=2> array[12] = {10,5,0,11,6,0,12,7,0,13,8,0};</P>
<P>vtkFloatArray *vectors = vtkFloatArray::New();</P>
<P>vectors->SetNumberOfComponents(3);</P>
<P>vectors->SetNumberOfTuples(dims[0]*dims[1]*dims[2]);</P>
<P>vectors->SetArray(&array[0],12,1);</P>
<P> </P><FONT color=#008000 size=2>
<P>//Poly Data</P></FONT><FONT size=2>
<P>vtkPolyData *polyData = vtkPolyData::New();</P>
<P>polyData->SetPoints(points);</P>
<P>polyData->GetPointData()->SetVectors(vectors);</P>
<P> </P><FONT color=#008000 size=2>
<P>//Label Mapper</P></FONT><FONT size=2>
<P>vtkLabeledDataMapper *labelMapper = vtkLabeledDataMapper::New();</P>
<P>labelMapper->SetInput(polyData);</P>
<P>labelMapper->SetLabelModeToLabelVectors();</P>
<P> </P><FONT color=#008000 size=2>
<P>//Actor</P></FONT><FONT size=2>
<P>vtkActor2D *actor = vtkActor2D::New();</P>
<P>actor->SetMapper(labelMapper);</P>
<P> </P>
<P>The above code works when I'm using vtkStructuredGrid but not for polyData.</P>
<P>(I also tried InsertNextPoint() function for giving the points coordinates to vtkPolyData and that didn't work either)</P>
<P>Many thanks in advance</P></FONT></FONT></FONT></FONT></FONT></DIV><p>
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