MATLAB: How to check if a point (x,y) is either inside or outside a shape in a graph created be a set of experimental points

Question

I am currently working on a project and what I have is a large set of points that make an irregular shape in a graph (example attached). I want to put that shape in a rectangle (closed space), generate random points (red dots) within that rectangle and see if the random point ends up inside or outside the irregular shape. Since I am working with a set of data and not a function, It makes my life harder to tell if the random points are within the shape. How can I determine if a point is inside or outside the irregular shape?

please help

Answer 1

Read about inpolygon. This will help you to get whether the give point is inside or outside the given closed region.