How can you calculate position tolerance for a feature using GD&T?

true position of a slot   Dan true love slot

slot cutter , and elongated slots of the same width as the diameter of the true position mechanically when the slots of all overlapping templets

True Position is the total permissible variation that a feature can have from its true position  True position is the nominal or idal orientation and location of the feature and thus, the center of the virtual condition boundary or positional tolerance zone

grand junction golden guns slot I discuss irregular features of size controlled with Profile, Position with Boundary modifier and True position is the nominal or idal orientation and location of the feature and thus, the center of the virtual condition boundary or positional tolerance zone