Displaying 5 results from an estimated 5 matches for "azequalarea".
2009 Mar 12
3
Map using projection
...help me if you know what the problem is?
Regards,
Alireza
#################################################
#case 1
library(maps)
require("mapproj")
longlatLimit<-c(-107,-93,40,52)
par(plt=c(0,1,0,1),cex=1,cex.main=1) #Set plotting parameters
#map(projection="azequalarea",
type="n",xlim=longlatLimit[1:2],ylim=longlatLimit[3:4])
map(projection="azequalarea",
type="n",xlim=longlatLimit[1:2],ylim=longlatLimit[3:4])
bound<-c(floor(longlatLimit[1]), ceiling(longlatLimit[2]),
floor(longlatLimit[3]), ceiling(longlatLimit[4]))...
2009 Mar 02
1
plotting on map
...ion. I wrote the following code to
plot the grid boundary for Texas:
################################
library(maps)
require("mapproj")
longlatLimit<-c(-106.65, -93.53 , 25.93 , 36.49)
par(plt=c(0,1,0,1),cex=1,cex.main=1) #Set plotting parameters
map(projection="azequalarea",
type="n",xlim=longlatLimit[1:2],ylim=longlatLimit[3:4])
bound<-c(floor(.map.range[1]), ceiling(.map.range[2]),
floor(.map.range[3]), ceiling(.map.range[4]))
map.grid(lim=bound,col="light grey")
####################################
Here is the problem I face:
1-...
2007 Nov 23
1
ggplo2: fixed extent greater than data?
...maps with different data on, but exactly the
same extent in each plot. Is there a way of switching the automatic extent
(to the data of the last layer added) OFF? I'm trying something like:
drawOverviewMap<-function(){
p2<-ggplot(xlimits=c(2,20),ylimits=c(43,50))+coord_map(project="azequalarea")
p2<-p2+geom_path(data=wa,mapping=aes(x=x,y=y))
p2<-p2+geom_point(data=spts,mapping=aes(x=Lon,y=Lat))
return(p2)
}
If I plot this in cartesian coordinates, it will zoom to the extent of the
country boundaries "wa", plus some extra space around it (since this is the
dataset...
2007 Nov 13
2
map - mapproj : problem of states localisation
Hi R-user,
I am new with R and I have a problem with the map and mapproj fonctions :
with the following code :
>test_proj=mapproject(LONG_d01_vec_t1, LAT_d01_vec_t1, projection="lambert",
parameters=c(30,60))
>longitude_vec=test_proj$x
>latitude_vec=test_proj$y
>longitude_mat=matrix(longitude_vec,ncol=e_sn_d01)
>latitude_mat=matrix(latitude_vec,ncol=e_sn_d01)
2004 Mar 04
4
Accurate area map projections
Hi,
Could any one point me to the projection, and parameters if necessary, that
would show each country/continent with it's area accurately refelcted on the
plot? E.g. aitoff vs. albers vs. bonne vs. cylequalearea vs. guyou - they
don't all look the same to mee but some of the documentations suggests they
are equal area? Of course this isn't my field, so I am largely guessing and
am