quadrilateralPoints
An array of values that represents the points bounding the marked-up text.
Declaration
var quadrilateralPoints: [NSValue]? { get set }Discussion
The array contains N * 4 NSValue objects that use pointValue or cgPointValue to define N quadrilaterals in page-space coordinates, where N is the number of quad points. The order of the points is a Z pattern as follows:
Upper-left point
Upper-right point
Lower-left point
Lower-right point
The coordinates of each point are relative to the bound’s origin of the annotation.