How to get number of points of a polydata from sourceproxy?

Question

I would like to check the number of points of the active source from python shell, without Fetching the object. How can I access this information, similarly to PointData[:] ?

Answer 1

Try:

source.GetDataInformation().GetNumberOfPoints()

source.GetDataInformation() returns an vtkPVDataInformation object with other useful methods.

Remember that the source must have been "executed" to get valid information. ie if needed, call source.UpdatePipeline() before calling GetDataInformation().