#### Goal
Capture the bounding area - i.e., latitude and longitude data points - of users' Rectangle/Lasso/Radius marking in Map, not necessarily of the underlying data points within the boundary itself – see example below, with reference to .png.
Example – rectangle marking
Black dot: actual data points on Map
Red dot: corner coordinates of rectangle marking
Goal: get the lat/lon values of the red dots for any of Rectangle/Lasso/Radius marking.