Is it possible to bind rendering to your object?

Question

.NET

There is a Vertex class that stores the X and Y coordinates, I give it to the Painter class and it knows that if the Vertex class comes, then it is necessary to draw a circle on the canvas by coordinates. Then I put a "dot" on the canvas and if it falls into the circle, I want to connect it to the Vertex on which it is drawn. How to do it correctly?

Answer 1

I connected it by writing my Vertex in Tag