[R-sig-Geo] Clip SpatialGridDataFrame with SpatialPolygons

[Nathalie Morin]

Hello again,

Actually, I found the answer to my own question :
clip <- D.tls.SPGDF[g,]

The problem is that the coordinates and cells dimension remain unchanged
after the process !?

> summary(clip)
Object of class SpatialGridDataFrame
Coordinates:
            min        max
[1,] 828049.000 828191.000
[2,] 101770.000 101915.000
[3,]    321.632    480.632
Is projected: TRUE 
proj4string :
[+init=epsg:27561 +proj=lcc +lat_1=49.50000000000001
+lat_0=49.50000000000001 +lon_0=0
+k_0=0.999877341 +x_0=600000 +y_0=200000 +a=6378249.2 +b=6356515
+towgs84=-168,-60,320,0,0,0,0 +pm=paris +units=m +no_defs]
Grid attributes:
  cellcentre.offset cellsize cells.dim
1        828049.500        1       142
2        101770.500        1       145
3           322.132        1       159
Data attributes:
     Min.   1st Qu.    Median      Mean   3rd Qu.      Max.      NA's 
      0.0       0.0       0.0       0.0       0.0       0.6 3161825.0 



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