import { vec2 } from 'gl-matrix';
export declare function computeMiter(tangent: vec2, miter: vec2, lineA: vec2, lineB: vec2, halfThick: number): number;
export declare function computeNormal(out: vec2, dir: vec2): vec2;
export declare function direction(out: vec2, a: [number, number], b: [number, number]): vec2;
export default function (points: number[][], closed: boolean, indexOffset: number, isDash?: boolean): {
    normals: number[];
    attrIndex: number[];
    attrPos: number[];
};