Hi,
I have a silly question: given two points in the plane
z1 = (1cm,3cm) ;
z2 = (5cm, 9cm) ;
the command
draw z1 -- z2 withpen pencircle scaled .5pt ;
draws the line segment joining z1 and z2. How could I draw the line segment
which goes a little further (say 1cm) than both the end points of this segment
(that is in this example, a point before z1 and a point after z2 on the
straight line) .
Indeed it is possible to write the equation of the line and then compute by
hand the coordinates of the new end points, but I think there is a simpler way
in Metafun to do this.
Thanks for any help: Otared
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