title: Contour Plot in matlab
body: <p>I have made a contour plot in matlab using the inbuilt contour function. It plots a group of lines in a figure, each of which represents a contour. I would like to obtain the data points that comprise each of these contours. How can I do this?</p>
  
  <p>So given a contour plot how would I get the actual underlying data points that make up the equation for each contour line. For example, if the contours ended up being straight lines and one of the contour lines went through the origin, I would like to be able to obtain data points that describe this line. e.g. [0 0.1 0.2 0.3 0.4 ; 0 0.25 0.5 0.75 1].</p>
  
  <p>Thanks.</p>