Re: [Gnuplot-info] Cone in parametric :-)

[Carles P. i E. <ca...@pi...>]

Hi,

On Jan/18/2007, Hans-Bernhard Br=F6ker wrote:

> >I am trying to do the figures that I need using parametric coordinate.=
=20
>=20
> You're confusing things here.  There's no such thing as "parametric=20
> coordinates".  Parametric is a model for describing surfaces, not a=20

correct, I was confusing it. My blame

> coordinate system.  Gnuplot does parametric plots in a cartesian=20
> coordinate system.  A simple cylinder is
>=20
> 	set parametric
> 	set urange [0:2*pi]; set vrange [-2:2]
> 	splot cos(u), sin(u), v title "cylinder"

iep, it works (of course). Now I can do my figures in two ways :-)
Thanks!

> >Any idea? the formula seems correct, Maybe range problem for u and v?
>=20
> Quite certainly, since you didn't specify any ranges for u and v.=20
> Please do read the documentation: "help parametric".

I was in hurry and I miss-understood, now is fine!

Sorry for the stupid mistakes: error with u and v in some formula,
divide two integers and expect a float and this...

--=20
Carles Pina i Estany		GPG id: 0x8CBDAE64
	http://pinux.info	Manresa - Barcelona