Re: plotting circles

[Ethan M. <merritt@u.washington.edu>]

On Sunday 19 December 2004 07:02 am, Carolina Brito wrote:
> Hello!
>=20
> I am trying to draw circles arount points and I
> cannot!

Many terminal types have both "circle" and=20
"circle around a point" symbols available.
=46or example,=20

   set term post solid color
   plot 'foo' using 1:2:3 with points pt 6 ps variable

will plot a point with a circle around it at the (x,y)
coordinates given in columns 1 and 2, with the radius
of the circle given in column 3.  (CVS version only).

If you want a solid circle instead, use pt 7




> I am thinking about parametric functions like=20
> f(x) =3D sqrt(1-x**2) and g(x)=3D-sqrt(1-x**2)
> and then to use "filledcurves  closed" but it's not
> working.
> Do you can help me?
>=20
> Thank you!
> Carolina.
>=20
>=20
> =09
> =09
> 	=09
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=2D-=20
Ethan A Merritt       merritt@u.washington.edu
Biomolecular Structure Center
Mailstop 357742
University of Washington, Seattle, WA 98195