split/Tioga/lib/Arcs_and_Circles.rb in tioga-1.4 vs split/Tioga/lib/Arcs_and_Circles.rb in tioga-1.5

@@ -9,10 +9,10 @@
 # Like adding lines from _start_ to _corner_ to _end_, but with the corner rounded
 # with a radius equal to the minimum of the actual output distances for _dx_ and _dy_.
 #
 # The illustration shows in dark blue the arc that is added for the control points given in red.
 #
-# http://theory.kitp.ucsb.edu/~paxton/tioga_jpegs/append_arc.jpg
+# link:images/append_arc.png
 #
    def append_arc_to_path(x_start, y_start, x_corner, y_corner, x_end, y_end, dx, dy)
    end
 
 # Create a circle with center at (_x_, _y_) having radius _r_ (given in x units).