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
> talk@openstreetmap.org
> http://lists.openstreetmap.org/listinfo/talk
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