Hello Juan,

thank you very very much !!

I just created the first map with the new ShapeFiles boundaries exactly on the
satellite images data.

At the moment i create a second, higher resolution map.


Thanks a lot,
Torsten.


Am Montag, 11. Mai 2009 23:32:14 schrieb Juan Lucas Dominguez Rubio:
> Hi. Your file world_boundaries_m.shp seems to be in the old-fashioned
> EPSG:3395 we discussed a few days ago.
>
> This should produce the shapefile you are looking for
> (world_boundaries_900913.shp):
>
> ogr2ogr -f "ESRI Shapefile" -s_srs epsg:3395 -t_srs "+proj=merc +a=6378137
> +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m
> +nadgri...@null +no_defs +over" world_boundaries_900913.shp
> world_boundaries_m.shp
>
>
>
> regards
> Juan Lucas
>
>
>
> ________________________________
>
>
>               Hello,
>
>               thanks for taking a look at it.  The output is ~ 19000 lines, 
> so i'll
> just show the top ~70 lines:
>
>               Had to open data source read-only.
>               INFO: Open of `world_boundaries_m.shp'
>                     using driver `ESRI Shapefile' successful.
>
>               Layer name: world_boundaries_m
>               Geometry: Polygon
>               Feature Count: 3807
>               Extent: (-20037400.000000, -19929239.110000) - (20037400.000000,
>               18375854.709643)
>               Layer SRS WKT:
>               PROJCS["Mercator",
>                   GEOGCS["GCS_WGS_1984",
>                       DATUM["WGS_1984",
>                           SPHEROID["WGS_1984",6378137,298.257223563]],
>                       PRIMEM["Greenwich",0],
>                       UNIT["Degree",0.017453292519943295]],
>                   PROJECTION["Mercator_1SP"],
>                   PARAMETER["latitude_of_origin",0],
>                   PARAMETER["central_meridian",0],
>                   PARAMETER["scale_factor",1],
>                   PARAMETER["false_easting",0],
>                   PARAMETER["false_northing",0],
>                   UNIT["Meter",1]]
>               CAT: Real (16.0)
>               FIPS_CNTRY: String (80.0)
>               CNTRY_NAME: String (80.0)
>               OGRFeature(world_boundaries_m):0
>                 CAT (Real) =               15
>                 FIPS_CNTRY (String) = AY
>                 CNTRY_NAME (String) = Antarctica
>
>               OGRFeature(world_boundaries_m):1
>                 CAT (Real) =               15
>                 FIPS_CNTRY (String) = AY
>                 CNTRY_NAME (String) = Antarctica
>
>               OGRFeature(world_boundaries_m):2
>                 CAT (Real) =               15
>                 FIPS_CNTRY (String) = AY
>                 CNTRY_NAME (String) = Antarctica
>
>               OGRFeature(world_boundaries_m):3
>                 CAT (Real) =               15
>                 FIPS_CNTRY (String) = AY
>                 CNTRY_NAME (String) = Antarctica
>
>               OGRFeature(world_boundaries_m):4
>                 CAT (Real) =               15
>                 FIPS_CNTRY (String) = AY
>                 CNTRY_NAME (String) = Antarctica
>
>               OGRFeature(world_boundaries_m):5
>                 CAT (Real) =               15
>                 FIPS_CNTRY (String) = AY
>                 CNTRY_NAME (String) = Antarctica
>
>               OGRFeature(world_boundaries_m):6
>                 CAT (Real) =              174
>                 FIPS_CNTRY (String) = NZ
>                 CNTRY_NAME (String) = New Zealand
>
>               OGRFeature(world_boundaries_m):7
>                 CAT (Real) =              174
>                 FIPS_CNTRY (String) = NZ
>                 CNTRY_NAME (String) = New Zealand
>
>               OGRFeature(world_boundaries_m):8
>                 CAT (Real) =              174
>                 FIPS_CNTRY (String) = NZ
>                 CNTRY_NAME (String) = New Zealand
>
>
>               It additionally tells me on stderr:
>               ERROR 4: Unable to open world_boundaries_m.shp or 
> world_boundaries_m.SHP.
>
>
>               Thanks for any hints,
>               Torsten.
>
>               Am Montag, 11. Mai 2009 12:42:44 schrieb Juan Lucas Dominguez 
> Rubio:
>               > Hi:
>               >
>               > I'm curious about that shapefile that needs some stretching. 
> Assuming
>               > its name is filename.shp, try to type this:
>               >
>               > ogrinfo -geom=NO filename.shp filename
>               >
>               > what is the output?
>               >
>               > Regards,
>               > Juan Lucas
>               >
>               >
>               > ________________________________
>               >
>               >
>               >
>               >
>               >               Hello Frederik,
>               >
>               >               thanks for your hint. Yes, i know about 
> projections. 
>               > Actually, i reprojected the rester images of "blue marble" 
> from a form
>               > of WGS84 to Mercaator with an own program.
>               >
>               >               But as i've heard it, world_boundaries_m is 
> "defect". 
>               > But as an overlay to represent the boundaries it would be ok. 
>  If that
>               > information was a misunderstanding and could be fixed with 
> the right
>               > projection that would be awesome.
>               >
>               >               If i use shoreline_300 instead, the projection 
> is
>               > perfectly fine, but if you try to render it _not_filled_ with 
> a
>               > LineSymbolizer instead of a PolygonSymbolizer, you get some 
> disturbing
>               > "plates".  But the projection is fine.
>               >
>               >               A ShapeFile contains the "source SRS" inside 
> it, right? 
>               > When rendering world_boundaries_m and shoreline_300 i used 
> the same
>               > "target SRS". But the result leads to different positions on 
> the final
>               > map.
>               >
>               >               Does that mean that world_boundaries_m is 
> defect?
>               >
>               >               Is there a way to "fix" it somehow?  Or would 
> scaling be
>               > possible?
>               >
>               >
>               >               Best regards,
>               >               Torsten.
>               >
>               >               > Hi,
>               >               >
>               >               > Torsten Mohr wrote:
>               >               > > I have a ShapeFile that seems to be 
> incorrect,
>               >               > > scaling it in Y-direction could make it fit 
> the
>               >               > > background.
>               >               >
>               >               > Do you have a basic understanding of 
> coordinate
>               >               > projections? If not, you'd be well advised to 
> spend a
>               >               > few hours reading on the subject (start with 
> Wikipedia,
>               >               > take it from there).
>               >               >
>               >               > You need to find out which projection your 
> shapefile is
>               >               > in, and then set the correct one in your map 
> file, and
>               >               > things are likely to work. Simply stretching 
> the data
>               >               > from the shapefile is very unlikely to yield 
> the
>               >               > desired results - you will probably find that 
> the
>               >               > stretch factor that makes Iceland and the 
> Equator fit
>               >               > will still have France out of place.
>               >               >
>               >               > Bye
>               >               > Frederik
>               >
>               >               _______________________________________________
>               >               talk mailing list
>               >               [email protected]
>               >               http://lists.openstreetmap.org/listinfo/talk
>
>               _______________________________________________
>               talk mailing list
>               [email protected]
>               http://lists.openstreetmap.org/listinfo/talk


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