mvGenericRegrid

guessPeriodicity(srcBounds)	Guess if a src grid is periodic
GenericRegrid.computeWeights(self, **args)	Compute Weights
GenericRegrid.apply(self, srcData, dstData)	Regrid source to destination
GenericRegrid.getDstGrid(self)	Return the destination grid, may be different from the dst grid provided to the constructor due to domain decomposition
GenericRegrid.fillInDiagnosticData(self, diag)	Fill in diagnostic data