[OSM-talk-be] URBis, Open!

[A.Pirard.Papou]

 On 2013-04-27 09:58,  Wim Crols wrote :
> On Sat, Apr 27, 2013 at 12:02 AM, A.Pirard.Papou
> <A.Pirard.Papou at gmail.com <mailto:A.Pirard.Papou at gmail.com>> wrote:
>
>     On 2013-04-26 11:20,  Chris Browet wrote :
>>     The Lambert72 PROJ4 string extracted from the prj is:
>>
>>     +proj=lcc +lat_1=49.8333339 +lat_2=51.16666723333333 +lat_0=90
>>     +lon_0=4.367486666666666 +x_0=150000.01256 +y_0=5400088.4378
>>     +ellps=intl +units=m +no_defs
>>
>>     And doesn't quite work.
>>
>>     This one is ok:
>>
>>     +proj=lcc +lat_1=51.16666723333334 +lat_2=49.83333389999999
>>     +lat_0=90 +lon_0=4.367486666666666 +x_0=150000.013
>>     +y_0=5400088.438 +ellps=intl
>>     +towgs84=-99.1,53.3,-112.5,0.419,-0.83,1.885,-1.0 +units=m +no_defs
>
>     There are 4 or 5 proj4 definitions of Lambert 72 around and bugs
>     reports.
>     This is the correct one, I think, that I configured Merkaartor
>     with after much searching.
>
>
> Actually this is the one defined in proj4 now
>  
> +proj=lcc +lat_1=51.16666723333333 +lat_2=49.8333339 +lat_0=90
> +lon_0=4.367486666666666 +x_0=150000.013 +y_0=5400088.438 +ellps=intl
> +towgs84=106.869,-52.2978,103.724,-0.33657,0.456955,-1.84218,1
> +units=m +no_defs
>
> https://svn.osgeo.org/metacrs/sr.org/epsg/proj/epsg
>
> look for 31370
Indeed, and that is why everybody should carefully check that this #47
bug is corrected in their proj.4 distribution
<http://trac.osgeo.org/proj/ticket/47> (library file libproj0.so.0 or
such) or in other sources or in any other "manual" configuration in
order to avoid producing bad work and confusion like this message +
replies and other discussions
<http://lists.maptools.org/pipermail/proj/2010-January/005017.html>.
>  
>
>     Obviously, IGN/NGI should specify their projections' proj4
>     definitions on their site.
>     Someone should notify them.
>
Obviously.


    Cheers

    André.



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