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ShapeUtils

A class containing utility functions for shapes.

Note that these are all linear functions so it is necessary to calculate separately for x, y (and z, w if present) components of a vector.

Methods​

area​

function area( ): Number;

contour -- 2D polygon. An array of THREE.Vector2()

Calculate area of a ( 2D ) contour polygon.

isClockWise​

function isClockWise( ): Boolean;

pts -- points defining a 2D polygon

Note that this is a linear function so it is necessary to calculate separately for x, y components of a polygon.

Used internally by Path, ExtrudeGeometry and ShapeGeometry.

triangulateShape​

function triangulateShape( ): Array;

contour -- 2D polygon. An array of Vector2.
holes -- An array that holds arrays of Vector2s. Each array represents a single hole definition.

Used internally by ExtrudeGeometry and ShapeGeometry to calculate faces in shapes with holes.

Source​

src/extras/ShapeUtils.js