I use a contour filter, and I need the points found by contouring to display the isodoses in another window.
 
 
If I draw lines between points, the output is a crazy mesh, because the contour filter seems to go line-by-line
 
Is it possible to re-order the points in contour in a clockwise order ? I need only the
border of that lines
 
Thank you in advance
 
Edi.