Handles.DrawAAConvexPolygon

参数

描述

绘制使用点数组指定的抗锯齿凸多边形。

    // Draws an arrow between start and end gameobjects.

    @CustomEditor (DrawArrow)
    class DrawArrowHandle extends Editor {

        function OnSceneGUI () {
            var arrowHead = new Vector3[3];
            var arrowLine = new Vector3[2];

            Transform start = ((foobar)target).start;
            Transform end = ((foobar)target).end;
            if (!start || !end)
                return;

            var forward = (end.position - start.position).normalized;
            var right = Vector3.Cross(Vector3.up, forward).normalized;
            var size = HandleUtility.GetHandleSize(end.position);
            var width = size * 0.1f;
            var height = size * 0.3f;

            arrowHead[0] = end.position;
            arrowHead[1] = end.position - forward * height + right*width;
            arrowHead[2] = end.position - forward * height - right*width;

            arrowLine[0] = start.position;
            arrowLine[1] = end.position - forward * height;

            Handles.color = Color.red;
            Handles.DrawAAPolyLine(arrowLine);
            Handles.DrawAAConvexPolygon(arrowHead);
        }
    }