← Back to team overview

dhis2-users team mailing list archive

Re: Setting up GIS

 

@Jan, thanks for the help, you were right, Kudos to you!

@Jason, thanks for the tip.

Kind regards,
Paulo Grácio

On 26 February 2013 17:25, Jason Pickering <jason.p.pickering@xxxxxxxxx> wrote:
> It looks like it may have worked, but you should be careful to ensure that
> if you do not have a .prj file (which defines the projection information for
> the shape file) that you tell ogr2ogr what projection system the file is
> actually in. In your case,  it looks like you did not need to tell ogr2ogr
> what the projection system was (it guess for you) , but you cannot always be
> sure with shape files what the projection system actually is without a bit
> of prior knowledge of the nature of the file, or having its metadata.
>
> From the ogr2ogr manual..
>
>
> This option controls the output projection.
>
> -t_srs srs_def:Reproject/transform to this SRS on output
>
> This option controls the input spatial reference system, which ogr2ogr will
> attempt to read from the .prj file if it is present.
> If not, you may get an error like the one you say above.
>
> -s_srs srs_def:Override source SRS
>
> Regards,
> Jason
>
>
>
> On Tue, Feb 26, 2013 at 5:19 PM, Paulo Grácio <paulogracio@xxxxxxxxx> wrote:
>>
>> I just get the following warning message
>>
>> Warning 1: Layer name 'MOZ_adm1-polygons-ms1' adjusted to
>> 'MOZ_adm1_polygons_ms1' for XML validity. Output attached.
>>
>> Nevertheless, I was expecting something similar to this structure
>>         (...)
>>         <gml:featureMember>
>>         <ogr:admin2 fid="F0">
>>             <ogr:geometryProperty>
>>                 (...)
>>             </ogr:geometryProperty>
>>             <ogr:ADMINID>6940101</ogr:ADMINID>
>>             <ogr:ADM1_NAME>Southern</ogr:ADM1_NAME>
>>             <ogr:Name>Bo</ogr:Name>
>>             <ogr:ISO_CTRY>SL</ogr:ISO_CTRY>
>>             <ogr:POPDENS90>37</ogr:POPDENS90>
>>             <ogr:TOT_POP90>213</ogr:TOT_POP90>
>>             <ogr:ADM1CODE>69401</ogr:ADM1CODE>
>>             <ogr:LVLID>SLP002004000000000000</ogr:LVLID>
>>             <ogr:OLDLVLID>SLP002001000000000000</ogr:OLDLVLID>
>>         </ogr:admin2>
>>     </gml:featureMember>
>>     (...)
>>
>> this is based on the test resources for dhis-service-importexport.
>>
>> Paulo
>>
>> On 26 February 2013 15:04, Jan Henrik Øverland
>> <janhenrik.overland@xxxxxxxxx> wrote:
>> > Ok, then try the same command, just replace -t_srs with -s_srs.
>> >
>> >
>> > On Tue, Feb 26, 2013 at 3:59 PM, Paulo Grácio <paulogracio@xxxxxxxxx>
>> > wrote:
>> >>
>> >> Hello Jan,
>> >>
>> >> thanks for the reply.
>> >>
>> >> Executing the command you suggested I'm having the following error:
>> >>
>> >> Can't transform coordinates, source layer has no
>> >> coordinate system.  Use -s_srs to set one.
>> >>
>> >> Regards,
>> >> Paulo Grácio
>> >>
>> >>
>> >> On 26 February 2013 12:53, Jan Henrik Øverland
>> >> <janhenrik.overland@xxxxxxxxx> wrote:
>> >> > Hi, please try
>> >> >
>> >> > ogr2ogr -t_srs EPSG:4326 -f GML MOZ_adm1-polygons-ms1.gml
>> >> > MOZ_adm1-polygons-ms1.shp
>> >> >
>> >> >
>> >> > On Tue, Feb 26, 2013 at 1:31 PM, Paulo Grácio <paulogracio@xxxxxxxxx>
>> >> > wrote:
>> >> >>
>> >> >> Hello,
>> >> >>
>> >> >> I have been following Chapter 16. Setting up GIS of DHIS User
>> >> >> Manual.
>> >> >> After download Spatial Data from http://www.diva-gis.org
>> >> >>
>> >> >> Country: Mozambique
>> >> >> Subject: Administrative areas (GADM)
>> >> >>
>> >> >> I used MapShaper to simplify geographical data according to the
>> >> >> described, but on Step 2 - Convert the shapefile to GML, I got
>> >> >> stuck.
>> >> >> Running ogrinfo -al -so MOZ_adm1-polygons-ms1.shp the output is
>> >> >>
>> >> >> INFO: Open of `MOZ_adm1-polygons-ms1.shp'
>> >> >>       using driver `ESRI Shapefile' successful.
>> >> >>
>> >> >> Layer name: MOZ_adm1-polygons-ms1
>> >> >> Geometry: Polygon
>> >> >> Feature Count: 10
>> >> >> Extent: (30.217328, -26.868695) - (40.839361, -10.471250)
>> >> >> Layer SRS WKT:
>> >> >> (unknown)
>> >> >>
>> >> >> Having this as an output what's the correct way to create the GML
>> >> >> file?
>> >> >>
>> >> >>
>> >> >> Kind regards,
>> >> >> Paulo Grácio
>> >> >>
>> >> >> _______________________________________________
>> >> >> Mailing list: https://launchpad.net/~dhis2-users
>> >> >> Post to     : dhis2-users@xxxxxxxxxxxxxxxxxxx
>> >> >> Unsubscribe : https://launchpad.net/~dhis2-users
>> >> >> More help   : https://help.launchpad.net/ListHelp
>>
>> _______________________________________________
>> Mailing list: https://launchpad.net/~dhis2-users
>> Post to     : dhis2-users@xxxxxxxxxxxxxxxxxxx
>> Unsubscribe : https://launchpad.net/~dhis2-users
>> More help   : https://help.launchpad.net/ListHelp


References