Method arcPrimitive

src/shape/custom_shapes.js:986–1019

(x,y,w,h,start,stop,mode)

  arcPrimitive(x,y,w,h,start,stop,mode){
    this.beginShape();
    const centerX = x+w/2;
    const centerY = y+h/2;
    const radiusX = w / 2;
    const radiusY = h / 2;

    const startVertex = this.#createVertex(
      new Vector(
        centerX + radiusX * Math.cos(start),
        centerY + radiusY * Math.sin(start)
      )
    );

    const endVertex = this.#createVertex(
      new Vector(
        centerX + radiusX * Math.cos(stop),
        centerY + radiusY * Math.sin(stop)
      )
    );

    const primitive = new ArcPrimitive(
      startVertex,
      endVertex,
      x, y, w, h,
      start,
      stop,
      mode
    );
    primitive.addToShape(this);
    this.endShape();
    return this;

  }

  ellipsePrimitive(x,y,w,h){
    const centerVertex = this.#createVertex(new Vector(x+w/2,y+h/2));