Try this example:
mygrid <- expand.grid(x=seq(0,1, by=0.1), y=seq(0,1, by=0.1))
filled.contour(volcano, color = terrain.colors, asp = 1,
plot.axes={ axis(1); axis(2); points(mygrid, cex=0.5, pch=19)})
Cheers,
Marcelino
> From: Dario Martin-Benito <dmartin <at> inia.es>
> Subject: [R] annotating a filled contours plot with a grid of points
> To: r-help <at> r-project.org
> Date: Friday, February 6, 2009, 8:23 AM
> Dear R-help members,
>
> I am trying to plot annotate a filled contours plot (with
> filled.contour)
> with a grid of points. I have read ways of annotating it
> with individual
> points but not with grids in another matrix.
>
>
>
> Any ideas?
>
>
>
> Thank you very much.
>
>
>
> Dario
>
> ___________________________________
> Dario Martin-Benito
> CIFOR-INIA
> Dpto. Sistemas y Recursos Forestales
> Ctra. La Coruña, Km. 7.5
> E-28040 Madrid (Spain )
> Tel.: +34 91 347 1461
> e-mail: dmartin <at> inia.es /// dmartinbenito <at> gmail.com
>
> <http://dmartinbenito.googlepages.com>http://dmartinbenito.googlepages.com
>
________________________________
Marcelino de la Cruz Rot
Departamento de Biología Vegetal
E.U.T.I. Agrícola
Universidad Politécnica de Madrid
28040-Madrid
Tel.: 91 336 54 35
Fax: 91 336 56 56
marcelino.delac...@upm.es
_________________________________
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