如何去掉Point3d[]对象xyz数组中重复的元素

Question

xyz是Point3d[]对象或Point3dCollection对象
即
Point3d[] xyz
或
Point3dCollection xyz

Answer 1

            Point3DCollection myPositionCollection = new Point3DCollection();
            myPositionCollection.Add(new Point3D(-0.5, -0.5, 0.5)); 
            myPositionCollection.Add(new Point3D(0.5, -0.5, 0.5));
            myPositionCollection.Add(new Point3D(0.5, 0.5, 0.5));  
            myPositionCollection.Add(new Point3D(0.5, 0.5, 0.5));
            myPositionCollection.Add(new Point3D(-0.5, 0.5, 0.5));
            myPositionCollection.Add(new Point3D(-0.5, -0.5, 0.5));
            //这句用于去除重复值
            var myPosition = (from dd in myPositionCollection.AsEnumerable()
                                       select dd).ToList().Distinct();            myPositionCollection.Clear();
            foreach (Point3D ss in myPosition)
            {
                myPositionCollection.Add(ss);
            }