Dear all,
I have been playing with rasters for a while but when it comes to plotting
I always encounter some difficulties that I have not resolved yet...
* I have a raster r2
> e
class : Extent
xmin : -2356170
xmax : -1624740
ymin : 1218210
ymax : 2538240
> r2 = raster (e,ncol=10,nrow=5)
> r2[]= runif (50,0,100)
> r2
class : RasterLayer
dimensions : 5, 10, 50 (nrow, ncol, ncell)
resolution : 73143, 264006 (x, y)
extent : -2356170, -1624740, 1218210, 2538240 (xmin, xmax, ymin, ymax)
coord. ref. : NA
data source : in memory
names : layer
values : 3.23514, 98.28136 (min, max)
* Since I am going to plot several rasters (of the same extent but
different values) I want my colors and legend to go from 0 to 100
plot (r2, breaks=seq(0,100,1), col=pal_temp(length(my.at)) ,ext=extent(r)
, axis.args=list(at=seq(0,100,50),
labels=seq(0, 100,50), cex.axis=0.6),
legend.args=list(text='MYUNITSHERE', side=4, font=2, line=2.5, cex=0.8))
###
PROBLEM?
1. Why does the extent on the x-axis does not restrict to the xmin and xmax
of the extent? How can I change that ? I have gone thorugh serveral posts
but could not find any solution within plot::raster
2. Worse case scenario, I would remove the bounding box of the map. I tried
with axes=F and frame.plot=F put it just removes the objects....how can I
do that?
THANKS A LOT,
Pep
################### SESSION INFO
> sessionInfo()
R version 2.15.2 (2012-10-26)
Platform: x86_64-apple-darwin9.8.0/x86_64 (64-bit)
locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packages:
[1] fields_6.7 spam_0.29-2 RColorBrewer_1.0-5
rgdal_0.7-22 raster_2.0-31 sp_0.9-99 ggplot2_0.9.2.1
loaded via a namespace (and not attached):
[1] colorspace_1.1-1 dichromat_1.2-4 digest_0.5.2 grid_2.15.2
gtable_0.1.1 labeling_0.1 lattice_0.20-10 MASS_7.3-22
memoise_0.1
[10] munsell_0.3 plyr_1.7.1 proto_0.3-9.2 reshape2_1.2.1
scales_0.2.2 stringr_0.6 tools_2.15.2
>
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