
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.delacruz@upm.es

_________________________________
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