romgrk-2d-geometry
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Javascript library for 2d geometry
48 lines (39 loc) • 944 B
text/typescript
/**
* Global constant CCW defines counterclockwise direction of arc
* @type {boolean}
*/
export const CCW = true;
/**
* Global constant CW defines clockwise direction of arc
* @type {boolean}
*/
export const CW = false;
/**
* Defines orientation for face of the polygon: clockwise, counterclockwise
* or not orientable in the case of self-intersection
* @type {{CW: number, CCW: number, NOT_ORIENTABLE: number}}
*/
export const ORIENTATION = {
CCW:-1,
CW:1,
NOT_ORIENTABLE: 0
};
export const PIx2 = 2 * Math.PI;
export const INSIDE = 1;
export const OUTSIDE = 0;
export const BOUNDARY = 2;
export const CONTAINS = 3;
export const INTERLACE = 4;
export enum Position {
INSIDE = 1,
OUTSIDE = 0,
}
export const OVERLAP_SAME = 1;
export const OVERLAP_OPPOSITE = 2;
export enum Overlap {
SAME = 1,
OPPOSITE = 2,
}
export const NOT_VERTEX = 0;
export const START_VERTEX = 1;
export const END_VERTEX = 2;