Function isEar

docs/app/js/sanddance-app.js:101793–101804

(ear)

    }
}
function isEar(ear) {
    const a = ear.prev;
    const b = ear;
    const c = ear.next;
    if (area(a, b, c) >= 0) return false;
    let p = ear.next.next;
    while(p !== ear.prev){
        if (pointInTriangle(a.x, a.y, b.x, b.y, c.x, c.y, p.x, p.y) && area(p.prev, p, p.next) >= 0) return false;
        p = p.next;
    }
    return true;
}
function isEarHashed(ear, minX, minY, invSize) {
    const a = ear.prev;
    const b = ear;