[R] OS X solution... was Re: rgdal functions: spTransform and CRS not working

[David Winsemius]

> On Jan 13, 2017, at 1:21 PM, Ossenbruggen, Paul <Paul.Ossenbruggen at unh.edu> wrote:
> 
> The following are examples from the rgdal library help file. 
> 
> Neither functions operate properly. 
> 
> Help is appreciated.
> Paul
> 
> Example 1
>> EPSG <- make_EPSG()
> Error in make_EPSG() : Error opening epsg file

I get the same error. Using OSX:

Built: R 3.3.2; x86_64-apple-darwin13.4.0; 2016-12-17 14:34:29 UTC; unix

.... with recently updated rgdal but did not update either GDAL or PROJ4

Loaded GDAL runtime: GDAL 2.1.2, released 2016/10/24
 Path to GDAL shared files: 
 Loaded PROJ.4 runtime: Rel. 4.9.1, 04 March 2015, 

which I am seeing some documented problems with

... when I search on the warning message:

WARNING: no proj_defs.dat in PROJ.4 shared files

...  I got when loading rgdal:

https://github.com/OSGeo/proj.4/issues/351

So I'm wondering what OS you have and what version of GDAL and PROJ4 you are using. I'm quitting my session so I can update my system structure. I've had success in hte past with the KingChaos disk images:

GDAL 2.1 Complete
http://www.kyngchaos.com/files/software/frameworks/GDAL_Complete-2.1.dmg

Used the disk image from Finder.app

That failed to resolve the warning or the error from rgdal::make_EPSG. Tried (re-)installing rgdal from current source tar.gz file using install.packages. Got an error relating to missing gdal-config

So based on a stackOverflow solution from Fran Villamil: http://stackoverflow.com/questions/34333624/trouble-installing-rgdal/37829420#37829420, I tried (from the R console):

install.packages('rgdal', type = "source", configure.args=c(
'--with-gdal-config=/Library/Frameworks/GDAL.framework/Programs/gdal-config', 
'--with-proj-include=/Library/Frameworks/PROJ.framework/Headers', 
'--with-proj-lib=/Library/Frameworks/PROJ.framework/unix/lib'))


reloaded R and ... no warnings or errors

I'm a somewhat clueless, albeit noisy user of R. I don't really have the development skills to figure out how to construct the code to tie together all these compiled bits, but I do find that searching is often sufficient to solve problems. If this is not an exact match to your situation,  then you should first read the posting guide and include sufficient information about _your_ OS, your system tools,  and versions of external-to-R packages to support a more focussed discussion.

Best;
David.


>> EPSG[grep("Oslo", EPSG$note), 1:2]
> Error: object 'EPSG' not found
>> EPSG[1925:1927, 3]
> Error: object 'EPSG' not found
> 
> 
> Example 2
>> data(meuse)
>> coordinates(meuse) <- c("x", "y")
>> proj4string(meuse) <- CRS(paste("+init=epsg:28992",
> +  "+towgs84=565.237,50.0087,465.658,-0.406857,0.350733,-1.87035,4.0812"))
> NOTE: rgdal::checkCRSArgs: no proj_defs.dat in PROJ.4 shared files
> Error in CRS(paste("+init=epsg:28992", "+towgs84=565.237,50.0087,465.658,-0.406857,0.350733,-1.87035,4.0812")) : 
>  no system list, errno: 2
>> # see http://trac.osgeo.org/gdal/ticket/1987
>> summary(meuse)
> Object of class SpatialPointsDataFrame
> Coordinates:
>     min    max
> x 178605 181390
> y 329714 333611
> Is projected: NA 
> proj4string : [NA]
> Number of points: 155
> Data attributes:
>    cadmium           copper            lead            zinc       
> Min.   : 0.200   Min.   : 14.00   Min.   : 37.0   Min.   : 113.0  
> 1st Qu.: 0.800   1st Qu.: 23.00   1st Qu.: 72.5   1st Qu.: 198.0  
> Median : 2.100   Median : 31.00   Median :123.0   Median : 326.0  
> Mean   : 3.246   Mean   : 40.32   Mean   :153.4   Mean   : 469.7  
> 3rd Qu.: 3.850   3rd Qu.: 49.50   3rd Qu.:207.0   3rd Qu.: 674.5  
> Max.   :18.100   Max.   :128.00   Max.   :654.0   Max.   :1839.0  
> 
>      elev             dist               om         ffreq  soil   lime   
> Min.   : 5.180   Min.   :0.00000   Min.   : 1.000   1:84   1:97   0:111  
> 1st Qu.: 7.546   1st Qu.:0.07569   1st Qu.: 5.300   2:48   2:46   1: 44  
> Median : 8.180   Median :0.21184   Median : 6.900   3:23   3:12          
> Mean   : 8.165   Mean   :0.24002   Mean   : 7.478                        
> 3rd Qu.: 8.955   3rd Qu.:0.36407   3rd Qu.: 9.000                        
> Max.   :10.520   Max.   :0.88039   Max.   :17.000                        
>                                    NA's   :2                             
>    landuse       dist.m      
> W      :50   Min.   :  10.0  
> Ah     :39   1st Qu.:  80.0  
> Am     :22   Median : 270.0  
> Fw     :10   Mean   : 290.3  
> Ab     : 8   3rd Qu.: 450.0  
> (Other):25   Max.   :1000.0  
> NA's   : 1                   
>> meuse.utm <- spTransform(meuse, CRS("+proj=utm +zone=32 +datum=WGS84"))
> NOTE: rgdal::checkCRSArgs: no proj_defs.dat in PROJ.4 shared files
> Error in spTransform(xSP, CRSobj, ...) : 
>  No transformation possible from NA reference system
>> summary(meuse.utm)
> Error in summary(meuse.utm) : object 'meuse.utm' not found
>> 
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David Winsemius
Alameda, CA, USA