[gdal-dev] What is the format of a .prf file?

[Rainer M Krug]

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On 20/03/13 16:44, Andre Joost wrote:
> Am 20.03.2013 16:01, schrieb Rainer M Krug:
> 
>> What I don't like is that I have to specify t_srs in such a long way. It states that t_srs
>> can be "a .prf file containing well known text", but I can't figure out what a .pdf file is.
>> Would for exmple work, if I put
>> 
>> +proj=aea +lat_1=-28.25 +lat_2=-29.75 +lat_0=-29 +lon_0=30.75 +x_0=0 +y_0=0 +datum=WGS84 
>> +units=m +no_defs
>> 
>> in t.prf and refer to it in gdalward as "-t_sts t.prf"?
>> 
> 
> No, the proj definition text is not "well known text" WKT.
> 
> 
>> Are there any examples available for prf files and allowed formats?
> 
> It's simply the same format as in every shapefiles .prj file.
> 
> For example ogr2ogr -s_srs epsg:3375 -t_srs epsg:4245 Malay-Kertau.shp rivers-neu.shp ogr2ogr
> -s_srs epsg:3375 -t_srs Malay-Kertau.prj Malay-prj.shp rivers-neu.shp
> 
> returns two identical outputs, where Malay-Kertau.prj contains the definition used in the first
> run with EPSG:4245.

Thanks for the response.

So the file Malay-Kertau.prj would then contain the text:

epsg:4245

?

So I have to put into the file simply the text as supplied to -t_srs ?

And what is the difference between a .prj file used by shape files and a .pdf file (format wise)?

Rainer


Rainer

> 
> Greetings, André Joost
> 
> 
> 
> _______________________________________________ gdal-dev mailing list gdal-dev at lists.osgeo.org 
> http://lists.osgeo.org/mailman/listinfo/gdal-dev


- -- 
Rainer M. Krug, PhD (Conservation Ecology, SUN), MSc (Conservation Biology, UCT), Dipl. Phys.
(Germany)

Centre of Excellence for Invasion Biology
Stellenbosch University
South Africa

Tel :       +33 - (0)9 53 10 27 44
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