search for: rgeos

Some notes on installing rgeos in R 2.14.0 on a Linux Mint 11 (x86_64-pc-linux-gnu) machine 1. rgeos 0.1-15 will not run with GEOS 3.2.0-1, which is the version currently available on Synaptic package manager 2. I installed GEOS 3.3.1 (the latest version) from http://trac.osgeo.org/geos/, but rgeos will not run with this either...

Hello Everybody. i am installing rgeo in R-2.13 on debian lenny. i am getting following error. Can anybody help me why i m not able to compile rgeos. rgeos_misc.c: In function ‘rgeos_hausdorffdistance’: rgeos_misc.c:55: error: ‘GEOSHausdorffDistance_r’ undeclared (first use in this function) rgeos_misc.c:55: error: (Each undeclared identifier is reported only once rgeos_misc.c:55: error: for each function it appears in.) rgeos_misc.c: In funct...

I figured it out, at least enough to get rgeos's gSimplify function to work, which was my original goal; the stringr problem was with 0.2, however I got stringr 0.5 to install by changing the minimum version in DESCRIPTION from R2.11 to R 2.10. ... Thanks for the help! ############# # This is how I got rgeos to install in R GUI on my...

Dear list! I have problem with buffer size (width) in package rgeos. I would like to expand given geometry (points) to specified width based on the z value from attribute table. Here is example: point <- data.frame(x=c(10,20), y=c(10, 10), z = c(2,7)) point_shp <- SpatialPointsDataFrame(point[,1:2],point) plot(point_shp, xlim = c(0,30), ylim = c(0,20)) plo...

Hi I am seeking to understand why the methods package (to be specific `methods:::.findOrCopyClass` when called by `setIs` when called by `setClass`) emits a warning message such as ` class "SpatialLinesNULL" is defined (with package slot 'rgeos') but no metadata object found to revise subclass information---not exported? Making a copy in package 'minweSpatialNULL ` when I try to `R cmd build .` and then R cmd check *.gz` (or alternatively `devtools::load_all()`) the package I am building. What I don't really follow is...

The third report on the R-spatial evolution project has been published. https://r-spatial.org/r/2023/04/10/evolution3.html It links back to earlier blogs and presentations, and focuses on work that maintainers of R packages and workflows using rgdal, rgeos and maptools need to put in train now before the packages are archived on CRAN. The first changes will occur in June 2023, and the retiring packages will be archived during October 2023. If you are giving a workshop or tutorial during the Northern hemisphere summer, aim for June. If you still...

The third report on the R-spatial evolution project has been published. https://r-spatial.org/r/2023/04/10/evolution3.html It links back to earlier blogs and presentations, and focuses on work that maintainers of R packages and workflows using rgdal, rgeos and maptools need to put in train now before the packages are archived on CRAN. The first changes will occur in June 2023, and the retiring packages will be archived during October 2023. If you are giving a workshop or tutorial during the Northern hemisphere summer, aim for June. If you still...

The legacy R spatial infrastructure packages maptools, rgdal and rgeos will be archived by CRAN on Monday, October 16, 2023; rgrass7 has already been replaced by rgrass and will be archived with the retiring packages. The choice of date matches the previously announced archiving during October 2023, and the specific date matches the release schedule of Bioconductor...

The legacy R spatial infrastructure packages maptools, rgdal and rgeos will be archived by CRAN on Monday, October 16, 2023; rgrass7 has already been replaced by rgrass and will be archived with the retiring packages. The choice of date matches the previously announced archiving during October 2023, and the specific date matches the release schedule of Bioconductor...

Schlatter Christian wrote: >Dear list members > > > >I'm very new to R but a little informed about geostatistics. > >As I was looking for possibilities of geostatistical analysis in R I encountered at least two very interesting packages: > > > >Rgeo and gstat > > > >And of course I'm wondering now about the one which fits better my needs

...ead in shapefile and merge polygons foo <- readShapePoly("foo.shp", proj4string = CRS("+init=epsg:2272")) IDs <- as.character(foo$ID) SP_out <- unionSpatialPolygons(foo, IDs) Error: isTRUE(gpclibPermitStatus()) is not TRUE I've seen some posts about a package "rgeos" which may have something to do with this error, and I downloaded the source from: http://r-forge.r-project.org/R/?group_id=602 But when I've tried to install by source using R CMD INSTALL (or using install.packages()) I get the following error message: ...lines of output not shown......

...tries hard enough. > > The message means what it says: Class information in a session includes the currently loaded subclasses of a particular class. Not critical but sometimes useful. > > In this case, (as I understand it without having looked recently), the issue is that the "rgeos" namespace has not been loaded, although a subclass of a class in that package has. > > So, should that namespace be loaded, to access (presumably) the class object? Or the copy made silently somewhere? It's probably true that the warning is not being seen by the owner of the pa...

...e information if it tries hard enough. The message means what it says: Class information in a session includes the currently loaded subclasses of a particular class. Not critical but sometimes useful. In this case, (as I understand it without having looked recently), the issue is that the "rgeos" namespace has not been loaded, although a subclass of a class in that package has. So, should that namespace be loaded, to access (presumably) the class object? Or the copy made silently somewhere? It's probably true that the warning is not being seen by the owner of the package that...

...tries hard enough. > > The message means what it says: Class information in a session includes the currently loaded subclasses of a particular class. Not critical but sometimes useful. > > In this case, (as I understand it without having looked recently), the issue is that the "rgeos" namespace has not been loaded, although a subclass of a class in that package has. > > So, should that namespace be loaded, to access (presumably) the class object? Or the copy made silently somewhere? It's probably true that the warning is not being seen by the owner of the pa...

...p. #-------------------------------------------------- #create a raster map from scratch install.packages("raster", dependencies=TRUE) library(raster) # raster data install.packages("rgdal", dependencies=TRUE) library(rgdal) # input/output, projections install.packages("rgeos", dependencies=TRUE) library(rgeos) # geometry ops install.packages("spdep", dependencies=TRUE) library(spdep) # spatial dependence install.packages("pastecs", dependencies=TRUE) library(pastecs) pts<-read.table.url("https://www.betydb.org//miscanthusyield.csv&quo...

...e package, I get the following message: " Loading required package: sp Note: polygon geometry computations in maptools depend on the package gpclib, which has a restricted licence. It is disabled by default; to enable gpclib, type gpclibPermit() Checking rgeos availability as gpclib substitute: TRUE " However, if I only load the 'sp' package (in a different R session), I don't get any warning message. Is there any way I can prevent the warning message appears when I load my package ? Thanks in advance for any help, Mauricio Zam...

...ileinfo&filecatid=115&parent=category Problem: I want to extract centroid coordinates for each State, but there is some coding problem with the shapefiles that prevents this. #Code: #After extracting the shapefiles from the india_state.zip file, then: library(maptools) library(sp) library(rgeos) india <- readShapeSpatial("india_state.shp") #Some states are made up of more than one polygon. #State names are in the NAME column of the dataframe india at data plot(india[india$NAME == "Tamil Nadu",], col = 1:8) #Extract centroid for a State (this works): gCentroid(indi...

Gracias, Jorge le echo un vistazo al link y te digo algo Un saludo Date: Wed, 11 Mar 2015 16:22:11 +0100 Subject: Re: [R-es] Pregunta sobre Simplificación de Poligonales con R From: jayusor en gmail.com To: fjroar en hotmail.com CC: r-help-es en r-project.org Hola, Esto lo hice algún tiempo para no hacer tan pesado los dibujos, si buscar por "R simplify shp" encuentras cosas, por

I am trying to install the rgdal package on my Mac OS X 3.9. I downloaded and installed the GDAL libraries from Fink and then tried to install rgdal and got the following message. I tried to determine if the GDAL libraries were in my path but I'm not sure how to do that. Any ideas? Thanks. trying URL 'http://www.biometrics.mtu.edu/CRAN/src/contrib/rgdal_0.4-10.tar.gz'

I'm trying to keep debugging of a development package relatively sane. I see that some packages manage to incorporate what appears to be Subversion (SVN) revision information in the package description; for example, > library(MASS) > sessionInfo()$otherPkgs$MASS$Revision [1] "$Rev: 3016 $" which looks like an auto-generated revision number. On the other hand, the rgl