get Drag Camera Options
@NonNull()
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Calculates target point where camera should move after drag. The method should be called after `dragStart` and before `dragEnd`.
Return
The `camera options` object showing the end point.
Parameters
fromPoint
The `screen coordinate` to drag the map from, measured in `platform pixels` from top to bottom and from left to right.
toPoint
The `screen coordinate` to drag the map to, measured in `platform pixels` from top to bottom and from left to right.