Version 5.0 The LEDA User Manual

void
W.draw ray(point p, point q, line l, color c = window :: fgcol)
draws the part of the line l on the ray with source p and
passing through q. This version of draw ray should be used
if p may lie far outside W . Precondition: p and q lie on l
or at least close to l.
3.5.0 Drawing Arcs and Curves
void W.draw arc(const point& p, const point& q, const point& r,
color c = window :: fgcol)
draws a circular arc starting in p passing through q and
ending in r.
void
void
void
void
W.draw bezier(const list& C, int n, color c = window :: fgcol)
draws the bezier curve with control polygon C by a polyline
with n points.
W.draw spline(const list& L, int n, color c = window :: fgcol)
draws a spline curve through the points of L. Each segment
is approximated by a polyline with m points.
W.draw closed spline(const list& L, int n, color c = window :: fgcol)
draws a closed spline through the points of L.
W.draw spline(const polygon& P, int n, color c = window :: fgcol)
draws a closed spline through the vertices of P .
3.4.6 Drawing arrows
void W.draw arrow(double x 1 , double y 1 , double x 2 , double y 2 ,
color c = window :: fgcol)
draws an arrow pointing from (x 1 , y 1 ) to (x 2 , y 2 ).
void
void
void
W.draw arrow(const point& p, const point& q, color c = window :: fgcol)
draws an arrow pointing from point p to point q.
W.draw arrow(const segment& s, color = window :: fgcol)
draws an arrow pointing from s.start() to s.end().
W.draw polyline arrow(const list& lp, color c = window :: fgcol)
draws a polyline arrow with vertex sequence lp.
void W.draw arc arrow(const point& p, const point& q, const point& r,
color c = window :: fgcol)
draws a circular arc arrow starting in p passing through q
and ending in r.