Zetah, Oops - I skipped passed the fact you were working with vectors. I read "Natural Earth" and assumed the nice hillshade images they support.
Converting from 180 -> 360 -> 180 is a something we often have to do for planetary data. My colleague Jay (CC'd) has written an OGR script to convert from 360 -> 180 but it requires OGR and Shapely. Shapely is used for line and polygon intersections (to split the boundary cases before shifting). Converting it to 180 -> 360 should be simple. Hopefully Jay can post it for the group. Other options: (1) As you can see here, you might have luck using OGR if you have no features that cross 0: http://lists.osgeo.org/pipermail/gdal-dev/2006-June/009293.html (2) ArcMap - This tool by Jeff Jeneness has a wrap boundary script: http://www.jennessent.com/arcgis/shapes_graphics.htm (3) For simple points, here is an older OGR example script: https://isis.astrogeology.usgs.gov/IsisSupport/index.php/topic,3722.0.html -Trent On Sun, Jun 16, 2013 at 1:21 PM, zetah <[email protected]> wrote: > Trent Hare wrote: > > > >There is a great method to do this virtually using GDAL's VRT format. > >Unfortunately it looks like this site has died but the wayback machine has > >a snapshot of it. Definitely a good tutorial to keep around -- I use this > >trick all the time. > > > >http://web.archive.org/web/20110406210056/http://www1.eonfusion.com > >/manual/index.php/Manipulate_rasters_with_GDAL_VRT > > Hi Trent, > > that's nice trick indeed, thanks. However shapefile as vector can't be > converted > to virtual raster. > > I thought that it's my lack of understanding ogr2org switches, as I didn't > expected > that this is more then trivial task, like it must be possible to represent > global map > starting from prime meridian other way then cropping the map on half? > >
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