Find if Point lies Inside a polygon

[John Previn Kumar]

Is there a way to find if a point (x,y) lies inside a polygon?

[Pandi Murugan A]

Hi JVM,

Thanks for using Syncfusion products.

We suggest you to use Node.Contains(PointF pt) method to achieve your requirement. Here is the code snippet for your reference.

[C#]
diagram1.MouseUp += new MouseEventHandler(diagram1_MouseUp);
void diagram1_MouseUp(object sender, MouseEventArgs e)
        {
            PointF curPt = diagram1.Controller.ConvertToModelCoordinates(e.Location);
            Node node = diagram1.Controller.GetNodeAtPoint(curPt);
            if (node != null)
            {
                if(node.ContainsPoint(curPt)){
                    MessageBox.Show("Point inside!");
                }
            }
        }

Please let me know if you have any concerns.

Regards,
Pandi Murugan A