SNL: D3 mishandles global ids not vtkIdType
This issue was created automatically from an original Mantis Issue. Further discussion may take place here.
D3 always assumes that global ids are in a vtkIdTypeArray. If they are not, they are ignored by D3.
In some special cases, I think this is causing D3 to crash (that is, D3 is crashing and I think this is the cause). It happens when you have int global point ids and then have thresholded the data so that some processes have no data. If this is the case, D3 first does a quick distribution to make sure every process has some data (TestFixTooFewInputFiles method) and then a second distribution based on the kd-tree. During this second distribution, vtkPKdTree gets confused because some processes may be missing their global point id arrays and the number of arrays does not match up.