you have to do it the hard way : transfer the serie in a list

use a list of tuple or use a list of pointf or create a structure named Points (if you want to use double)
https://docs.microsoft.com/fr-fr/dot...a-types/tuples
https://www.dotnetperls.com/tuple-vbnet
https://docs.microsoft.com/fr-fr/dot...f?view=net-6.0