[R-sig-Geo] raster contour lines

[Céline Bellard]

Hi members,

I would like to superpose a raster stack and some contour lines (several 
pannels).
It is possible with rasterVis :
levelplot()+contourplot()

But I would like to do it with plot (much faster) :
plot()
and something like contour(<>, add=T)

Any idea ? Thank !

Céline

-- 
Céline Bellard, PhD student
  
Lab ESE, UMR CNRS 8079

Univ Paris-Sud Tel  (0033/0) 1 69 15 56 85

Bat 362

F-91405  Orsay Cedex FRANCE