How to determine length of extracted line segments

Hello. I have extracted line segments using Hough's Transform. I would like to now determine the length of these lines, but I'm not sure how to do it. I have attached a picture of how the lines look now. Thank you.

[jonas]

You have a list of x and y coordinates? Pythagoras theorem comes to mind

[Victoria]

I don't... Is there a way to automatically find the coordinates?

[jonas]

Surely. Can you post the image and the code?

You may be able to find the line segments by

H=get(gca, 'children')

Their coordinates should be in xdata and ydata properties