How to remove rectangle from plot after updating

I am plotting a series of randomly placed rectangle objects. Rectangles are not allowed to overlap. I have a method for removing rectangles when they overlap another rectangle, but the removed rectangle object is still plotted. How can I tell Matlab to only plot the final set of rectangles?

I can remove the object from the class I created, but it still appears in the plot.

[Jason Hawkins]

I believe I have it working now. I needed to refer to the rectangle property of the object when I called delete() on it rather than the whole object.

Ex. delete(obj) - does not work

delete(obj.rectangle) - does work

[KSSV]

You will get exact help on knowing the code.