Torsten Mohr tmohr at s.netic.de writes:
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.
Not necessarily. Shapefile is a collection of files
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,
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:
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
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,
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,
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.
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