ShapeUtils.html.md 971 B
ShapeUtils
A class containing utility functions for shapes.
Static Methods
.area( contour : Array. ) : number
Calculate area of a ( 2D ) contour polygon.
contour
An array of 2D points.
Returns: The area.
.isClockWise( pts : Array. ) : boolean
Returns true if the given contour uses a clockwise winding order.
pts
An array of 2D points defining a polygon.
Returns: Whether the given contour uses a clockwise winding order or not.
.triangulateShape( contour : Array., holes : Array.> ) : Array.>
Triangulates the given shape definition.
contour
An array of 2D points defining the contour.
holes
An array that holds arrays of 2D points defining the holes.
Returns: An array that holds for each face definition an array with three indices.