Cannot set Scalars attribute properly in Threshold when using python script

ParaView Support
1

Hello Paraview team,

My pipeline contains a “Threshold” to subselect cells based on ‘vtkValidPointMask’ scalar. It works fine when built from the GUI. However, when the pipeline is built from a Python script, the Scalar is not set properly: the Scalars field remains empty as illustrated in the picture. What shall I do to set this attribute properly? All other attributes in the script are set properly.

20230806_scalar_not_set
20230806_scalar_not_set1177×750 103 KB

Best regards

2

It is because the widget shows only existing arrays. But, as the pipeline didn’t run yet, no arrays are found.

You should add UpdatePipeline() before creating the Threshold.

1 Like
3

The UpdatePipeline was indeed not placed before the Threshold creation, thank you very much for the solution