Hi, I am reading the following xmf file (attached as var3d.xmf) into Paraview:
<?xml version="1.0" ?> <!DOCTYPE Xdmf SYSTEM "Xdmf.dtd" []> <Xdmf Version="2.2"> <Domain> <Grid GridType="Uniform"> <Topology TopologyType="3DRectMesh" Dimensions=" 2 4 3"/> <Geometry GeometryType="VXVYVZ"> <DataItem Dimensions=" 3" NumberType="Float" Precision="4" Format="XML"> 0.0000 1.0000 2.0000 </DataItem> <DataItem Dimensions=" 4" NumberType="Float" Precision="4" Format="XML"> 0.0000 2.0944 4.1888 6.2832 </DataItem> <DataItem Dimensions=" 2" NumberType="Float" Precision="4" Format="XML"> 1.0000 2.0000 </DataItem> </Geometry> <Attribute Name="var" AttributeType="Scalar" Center="Node"> <DataItem Dimensions="24" NumberType="Float" Precision="4" Format="XML"> 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 </DataItem> </Attribute> </Grid> </Domain> </Xdmf> The grid is a 3D orthogonal grid read in cartesian coordinates (see attached image showing grid and contours of variable). I then want to transform the grid from cartesian to cylindrical coordinates. I tried using the following Python script: pdi = self.GetPolyDataInput() pdo = self.GetPolyDataOutput() newPoints = vtk.vtkPoints() numPoints = pdi.GetNumberOfPoints() for i in range(0, numPoints): coord = pdi.GetPoint(i) x, y, z = coord[:3] r = x * sin(y) t = x * cos(y) newPoints.InsertPoint(i, r, t, z) pdo.SetPoints(newPoints) with Output Data Set Type chosen to be the Same as Input, but I get this error: Traceback (most recent call last): File "<string>", line 26, in <module> File "<string>", line 12, in RequestData AttributeError: 'NoneType' object has no attribute 'SetPoints' I have no experience with Python scripting. What am I doing wrong? Thank you, Nikos
<<attachment: grid_var_contours.png>>
var3d.xmf
Description: Binary data
_______________________________________________ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview