AnyCAD C#开发-查询鼠标位置处的物体PickHelper

        public Form1()
        {
            InitializeComponent();


            //注册鼠标事件
            this.renderView.MouseClick += new System.Windows.Forms.MouseEventHandler(this.OnRenderWindow_MouseClick);
        }


        private void OnRenderWindow_MouseClick(object sender, MouseEventArgs e)
        {
            //通过鼠标位置选择形状
            PickHelper pickHelper = renderView.PickShape(e.X, e.Y);
            if (pickHelper != null)
            {
                //获取所选形状的点位置
                Vector3 pt = pickHelper.GetPointOnShape();

                //创建球
                TopoShape shape = GlobalInstance.BrepTools.MakeSphere(pt, 2);

                //显示球
                SceneNode sceneNode = renderView.ShowGeometry(shape, 100);

                //设置球的颜色
                FaceStyle style = new FaceStyle();
                style.SetColor(new ColorValue(1, 0, 0, 1));
                sceneNode.SetFaceStyle(style);
            }
        }