[R] maptools no such file

[Rainer Hurling]

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Am 29.01.2008 00:04 (UTC+1) schrieb Roger Bivand:
> On Mon, 28 Jan 2008, Rainer Hurling wrote:
> 
>> Roger,
>>
>> I tried your suggestions and ran into same problems as Pieter did before.
>>
> 
> Rainer:
> 
> I don't think that we know what platform Pieter was using, apart from the 
> working directory that looked like Windows, and where the problem could 
> not be reproduced. I note that yours is FreeBSD 8, and I agree, the .C() 
> interface to the small helper function should most likely be replaced by a 
> .Call() to make handling the file name more robust. Can I send a modified 
> version off-list tomorrow, since I have no access to your platform 
> otherwise? Is readOGR() in rgdal working, by the way?
> 

Roger,

cities <- readOGR("./R\ scripts", "cities")

works well for me.

Rainer



> Roger
> 
>> On 28.01.2008 12:35 (UTC+1), Roger Bivand wrote:
>>>   <pieterprovoost <at> gmail.com> writes:
>>>
>>>>  No, I get the same error message there...
>>>  Please do not needlesly delete the thread content. Your original question
>>>  was:
>>>
>>>  "I'm having problems reading a shapefile with read.shape (maptools). I'm
>>>  absolutely sure my file is there, but I get "no such file". The wd is ok,
>>>  since read.table for example does find the file.
>>>
>> For testing I copied /usr/local/lib/R/library/rgdal/vectors/cities.shp into 
>> /usr/home/rhurlin/TEMP/Rscripts/
>>
>>>>  getwd()
>>>  [1] "D:/somedirectory/R scripts"
>> [1] "/usr/home/rhurlin/TEMP/Rscripts"
>>
>>>>  read.table("cities.shp")
>>>  Error in read.table("cities.shp") : empty beginning of file
>>>  In addition: Warning message:
>>>  In read.table("cities.shp") :
>>>    incomplete final line found by readTableHeader on 'cities.shp'"
>>>
>>>  which is self-explanatory, because you were not using read.shape() anyway.
>>>
>>>  You continued:
>>>
>>>  "> read.shape("cities.shp")
>>>  Error in getinfo.shape(filen) : No such file"
>> Fehler in getinfo.shape(filen) : No such file
>>
>>>  but did not respond to the suggestion from an R-helper with the output
>>>  from:
>>>
>>>  readShapePoly("cities.shp")
>> Fehler in getinfo.shape(filen) : No such file
>>
>>>  Try list.files(pattern="shp$") to see whether your assumption that the
>>>  files are
>>>  where you think they are, is justified.
>> [1] "cities.shp"
>>
>>>  Then get back with the output of
>>>
>>>  getinfo.shape("cities.shp")
>> Fehler in getinfo.shape("cities.shp") : No such file
>>
>>>  If you want to, you can use file.choose() to choose the file
>>>  interactively.
>>>
>>>  If you haven't solved this yourself by then (found the files youself), do
>>>  remember to include the verbatim output of sessionInfo() too.
>> R version 2.6.1 (2007-11-26)
>> i386-unknown-freebsd8.0     # This is 8.0-CURRENT from yesterday
>>
>> locale:
>> de_DE.ISO8859-15/de_DE.ISO8859-15/de_DE.ISO8859-15/C/de_DE.ISO8859-15/de_DE.ISO8859-15
>>
>> attached base packages:
>> [1] stats     graphics  grDevices utils     datasets  grid      methods
>> [8] base
>>
>> other attached packages:
>> [1] maptools_0.7-4 sp_0.9-19      foreign_0.8-23 proto_0.3-8
>>
>> loaded via a namespace (and not attached):
>> [1] ggplot2_0.5.7   lattice_0.17-4  rcompgen_0.1-17
>>
>>>  Roger Bivand
>>
>> It seems, that the C call of 'Rshapeinfo' makes trouble on my system. 
>> Rshapeinfo.c tries to open the shapefile with the following code:
>>
>> hSHP = SHPOpen( shpnm[0], "rb" );
>>
>> If I did not misunderstood, this returns NULL on my system.
>>
>> I have almost no C programming skills, so I am not able to understand the 
>> code enough.
>>
>> Could something be wrong in using 'gettext'? (GNU gettext-runtime 0.16.1)
>>
>> Hope this helps a bit,
>> Rainer
>>
>>
>