Function modifyPolygonWindingDirection

docs/app/js/sanddance-app.js:101626–101633

(points, direction, options = {})

    WINDING1[WINDING1["COUNTER_CLOCKWISE"] = -1] = "COUNTER_CLOCKWISE";
})(WINDING || (WINDING = {}));
function modifyPolygonWindingDirection(points, direction, options = {}) {
    const windingDirection = getPolygonWindingDirection(points, options);
    if (windingDirection !== direction) {
        reversePolygon(points, options);
        return true;
    }
    return false;
}
function getPolygonWindingDirection(points, options = {}) {
    return Math.sign(getPolygonSignedArea(points, options));
}