How to draw rectangle inside plot figure?

I have a 6x6 plot like shown in picture with grid on, it has boxes numbering from 1-36,(boxes are just due to having grid on) now I wanna draw traingle on any boxes e.g 14,15, how can I do it, like how do I define the x,y cords and width height for rectangle correctly, any ideas?

[Cris LaPierre]

Share the code you use to create your figure.

Answer 1

[Cris LaPierre]

Rectangle or triangle? Title and image show a rectangle so going with that.

You could use the plot command and supply it with the (x,y) coordinates of your corners. See Ch 9 of MATLAB Onramp.

You could use the rectangle function.

If you want to draw it, you could use drawrectangle

[Mohsin Zubair]

I was already using rectangle function, and I have figured the way to obtained desired results. Apologies for bothering you guys. and also thanks for your kind responce