Hi all,
I'm trying to use mapnik to generate figures from a GRASS mapset
though OGR[0], but it seems that the GRASS format is not supported.
If I try:
{{{
#!python
import mapnik
schools = mapnik.Ogr(base='/data/gis/nc_basic_spm_grass7/PERMANENT/vector/schools',
file='head',
layer='1')
}}}
I got:
{{{
RuntimeError: OGR Plugin: connection failed:
/data/gis/nc_basic_spm_grass7/PERMANENT/vector/schools/head was not
found or is not a supported format
}}}
In theory OGR support the vector format of GRASS[1].
There is someone that use mapnik and GRASS that know how to solve it?
Best regrads.
Pietro
[0] https://github.com/mapnik/mapnik/wiki/OGR
[1] http://www.gdal.org/ogr/drv_grass.html
Hi,
2013/4/16 Pietro <peter.zamb@gmail.com>:
In theory OGR support the vector format of GRASS[1].
There is someone that use mapnik and GRASS that know how to solve it?
is your OGR library compiled with GRASS support?
ogrinfo --formats
Note that GDAL-GRASS driver needs to be updated for GRASS 7 [1].
Martin
[1] http://trac.osgeo.org/gdal/ticket/2953
--
Martin Landa <landa.martin gmail.com> * http://geo.fsv.cvut.cz/~landa
On Tue, Apr 16, 2013 at 11:10 AM, Martin Landa <landa.martin@gmail.com> wrote:
In theory OGR support the vector format of GRASS[1].
There is someone that use mapnik and GRASS that know how to solve it?
is your OGR library compiled with GRASS support?
ogrinfo --formats
No, my OGR library was not compiled with GRASS support! 
sorry...
Note that GDAL-GRASS driver needs to be updated for GRASS 7 [1].
[1] http://trac.osgeo.org/gdal/ticket/2953
What exactly should I do?
I've downloaded the last version of gdal-svn and configured it, with:
{{{
./configure --prefix=/home/pietro/.local/ \
--with-grass=/home/pietro/docdat/src/gis/grass/grass_trunk/dist.x86_64-unknown-linux-gnu
\
--with-netcdf \
--with-libtiff \
--with-sqlite3 \
--with-geotiff \
--with-python=/usr/bin/python2 \
--without-libtool --with-curl \
--with-hdf5 \
--with-geos \
--with-png
}}}
But compiling I got:
{{{
grass57dataset.cpp:50:38: error: declaration of C function ‘char*
GPJ_grass_to_wkt(Key_Value*, Key_Value*, int, int)’ conflicts with
int esri_style, int prettify);
^
In file included from
/home/pietro/docdat/src/gis/grass/grass_trunk/dist.x86_64-unknown-linux-gnu/include/grass/gprojects.h:91:0,
from grass57dataset.cpp:45:
/home/pietro/docdat/src/gis/grass/grass_trunk/dist.x86_64-unknown-linux-gnu/include/grass/defs/gprojects.h:17:7:
error: previous declaration ‘char* GPJ_grass_to_wkt(const Key_Value*,
const Key_Value*, int, int)’ here
char *GPJ_grass_to_wkt(const struct Key_Value *, const struct
Key_Value *, int, int);
^
ogrgrassdatasource.cpp: In member function ‘int
OGRGRASSDataSource::Open(const char*, int, int, int)’:
ogrgrassdatasource.cpp:191:28: error: ‘GV_FATAL_PRINT’ was not
declared in this scope
Vect_set_fatal_error ( GV_FATAL_PRINT ); // Print error and continue
^
ogrgrassdatasource.cpp:191:43: error: ‘Vect_set_fatal_error’ was not
declared in this scope
Vect_set_fatal_error ( GV_FATAL_PRINT ); // Print error and continue
^
make[2]: *** [../o/grass57dataset.o] Error 1
make[2]: Leaving directory `/home/pietro/docdat/src/gis/gdal/frmts/grass'
make[1]: *** [grass-install-obj] Error 2
make[1]: Leaving directory `/home/pietro/docdat/src/gis/gdal/frmts'
make: *** [frmts-target] Error 2
make: *** Waiting for unfinished jobs....
make[3]: *** [../o/ogrgrassdatasource.o] Error 1
make[3]: Leaving directory
`/home/pietro/docdat/src/gis/gdal/ogr/ogrsf_frmts/grass'
make[2]: *** [grass-target] Error 2
make[2]: Leaving directory `/home/pietro/docdat/src/gis/gdal/ogr/ogrsf_frmts'
make[1]: *** [sublibs] Error 2
make[1]: Leaving directory `/home/pietro/docdat/src/gis/gdal/ogr'
make: *** [ogr-target] Error 2
}}}
Any hints?
Pietro
On Tue, Apr 16, 2013 at 12:48 PM, Pietro <peter.zamb@gmail.com> wrote:
On Tue, Apr 16, 2013 at 11:10 AM, Martin Landa <landa.martin@gmail.com> wrote:
In theory OGR support the vector format of GRASS[1].
There is someone that use mapnik and GRASS that know how to solve it?
is your OGR library compiled with GRASS support?
ogrinfo --formats
No, my OGR library was not compiled with GRASS support!
I recommend to use the plugin rather than direct compilation:
http://grasswiki.osgeo.org/wiki/Compile_and_install_GDAL-GRASS_plugin
Markus