Re: [R-sig-Geo] Coloring Canada provinces in raster

2012-01-27 Thread Rafael Wüest
Hi Dimitri you can use the col.regions argument in case groups is a factor: can2@data$groups-as.factor(can2@data$groups) spplot(can2,zcol=groups,col.regions=c('red','blue','yellow','lightblue','green','orange')) Hope this does what you were looking for... Rafi On 26.01.2012, at 21:42, Dimitri

[R-sig-Geo] R package to know distances between city [or zipcode]

2012-01-27 Thread Antoine Lucas
Dear All, I have build a small package, that main object is to compute: 1. city names that are close to another city 2. city names that are close to a zipcode I have two questions: - a. for now, dataset is french data (zipcode + city + lat,lon): I would like someting like:

Re: [R-sig-Geo] cut a line at specific point

2012-01-27 Thread Mathieu Rajerison
Hi, Do you have one layer of segments or two? You'll find what you need in the spatstat package. See (self)crossing.psp find crossing points between two line segment patterns Afterwards, it must possible to build new segments based on the intersection points Also, you have the GRASS v.clean

Re: [R-sig-Geo] R package to know distances between city [or zipcode]

2012-01-27 Thread Mathieu Rajerison
Hi, You could use spatstat::nndist/nnwhich to find the nearest points. Best, Mathieu 2012/1/27 Antoine Lucas antoinelu...@gmail.com Dear All, I have build a small package, that main object is to compute: 1. city names that are close to another city 2. city names that are close to a

[R-sig-Geo] remove.holes - library(wild1)

2012-01-27 Thread Ingo Holz
Hallo, I try to use function remove.holes (library wild1) to remove holes from a SPDF. If test is a SPDF. It works with for(i in (1:length(test@polygons))){ test@polygons[[i]] - remove.holes(test@polygons[[i]]) } I think there must be a way without a loop. Maybe:

Re: [R-sig-Geo] remove.holes - library(wild1)

2012-01-27 Thread Edzer Pebesma
untried: lapply(test@polygons, remove.holes) On 01/27/2012 12:10 PM, Ingo Holz wrote: Hallo, I try to use function remove.holes (library wild1) to remove holes from a SPDF. If test is a SPDF. It works with for(i in (1:length(test@polygons))){ test@polygons[[i]] -

[R-sig-Geo] Coordination Transformation from Gauss Kruger to LongLat

2012-01-27 Thread Johannes Radinger
Dear R-Geo List! This is my first post on this list as I have a geographical task/problem to solve. I want to perform Species Distribution Models (SDM) and therefore I have the points of occurence of several Species. Unforunately all the environmental maps (climatic maps etc.) are in long-lat

Re: [R-sig-Geo] Antw: Re: HDF format

2012-01-27 Thread Vikram Ranga
Hi Matteo, Ok, When I type on the cmd it is something like that C:\Users\vikramgdalinfo the output is 'gdalinfo' is not recognised as an internal or external command, operable program or batch file. But I installed FWTools with it command prompt I tried, C:\Program Files (x86)\FWtools2.4.7. The

Re: [R-sig-Geo] Antw: Re: HDF format

2012-01-27 Thread Matteo Mattiuzzi
FWTools uses a GDAL version older than 1.8.0 take care and check it with 'gdalinfo --version'. This would mean that all your GTiff files have an offset of half a pixel!! If 'gdalinfo --version' tells you something like that: C:\gdalinfo --version GDAL 1.7.0b2, FWTools 2.4.7, released 2010/01/19

Re: [R-sig-Geo] Coloring Canada provinces in raster

2012-01-27 Thread Dimitri Liakhovitski
Vielen-vielen Dank, Rafael. A factor! That does exactly what I wanted! Thanks a million! Still can't figure out how to get rid of the legend on the right. I couldn't find the solution here: http://127.0.0.1:14681/library/sp/html/spplot.html Or, if it's impossible, maybe one could at least change

Re: [R-sig-Geo] Coloring Canada provinces in raster

2012-01-27 Thread Dimitri Liakhovitski
I found an important part of the solution - was able to get rid of the legend! library(raster) can2-getData('GADM', country=CAN, level=2) nrofunits-length(can2$NAME_2) groups-c(rep(1:6,(nrofunits %/%6)),rep(1,5))[order(c(rep(1:6,(nrofunits %/% 6)),rep(1,5)))] # adding values (grouping values) to

Re: [R-sig-Geo] Coloring Canada provinces in raster

2012-01-27 Thread Dimitri Liakhovitski
Thanks a lot, everyone - I solved most of my challenges: the last line of my code should read: spplot(can2,zcol=groups,col.regions=classcolors,colorkey = FALSE,lwd=.4,col='white', par.settings = list(axis.line = list(col='transparent'))) Thanks a lot for your help! Dimitri On Fri, Jan 27,

[R-sig-Geo] Overimposing one map in ssplot onto another

2012-01-27 Thread Dimitri Liakhovitski
Hello! I have 2 maps - both created in ssplot and both identical in terms of outline. Is there any way to superimpose Map1 (which has black borders between Canadian provinces) onto Map2 (which is also a map of Canada)? Thanks a lot for your hints! Dimitri ### A. Reading in Canada data at the