Thanks to Jukka for this first input. The given example is similar to what I want to get. Rendering the image in separate tiles could be an alternative but for some reasons I would prefer get the whole image within a single call to the server. Anybody has got an idea ? Fred
2011/9/23 Rahkonen Jukka <[email protected]> > ** > Hi, > > You perhaps want to achieve a map presenting the whole world once and then > some extra from the second round in the margins like > http://www.openstreetmap.org/?lat=59&lon=-39&zoom=1&layers=M? It might > well be that the transformation functions consider that for EPSG:3395 the > maximum values really are the bounds reported at > http://spatialreference.org/ref/epsg/3395/ and values outside the value > range are invalid. I have no idea about how you could get your map out from > WMS. Could you consider composing it from pieces somehow? > > -Jukka Rahkonen- > > > ------------------------------ > *Lähettäjä:* [email protected] [mailto: > [email protected]] *Puolesta *fred p > *Lähetetty:* 23. syyskuuta 2011 11:10 > *Vastaanottaja:* [email protected] > *Aihe:* [mapserver-users] Re: problem with mercator projection > > Hello > Nobody has got an idea whether I am wrong somewhere or there is a problem > in the image or ... ? > I add the result is OK in EPSG:4326 whatever the bbox is and it is OK too > in EPSG:3395 provided the extent longitude is smaller than 360°. However > when it is higher... > Thanks in advance > > 2011/9/21 fred p <[email protected]> > >> Hello ! >> >> I am trying to serve an image in Mercator projection (EPSG:3395) with an >> extent larger than "360° in longitude" but I get a truncated and reversed in >> longitude image. >> Do I make a mistake somewhere? >> Thanks for your help >> >> The mapfile content and the gdalinfo output on the original image are >> given below. >> >> >> Mapserver version: 6.0.1 >> >> Call to mapserver: >> /path/to/mapserv -nh "QUERY_STRING=map=/tmp/world. >> >> map&service=wms&LAYERS=countries&FORMAT=image/png&SERVICE=WMS&VERSION=1.3.0&REQUEST=GetMap&STYLES=&SRS=epsg:3395&BBOX=-26080550.098232,-15000000,26080550.098232,15000000&WIDTH=885&HEIGHT=509" >> > foo.png >> >> Content of the mapfile: >> MAP >> EXTENT -180 -90 180 90 >> IMAGECOLOR 255 255 255 >> IMAGETYPE agg >> STATUS ON >> >> OUTPUTFORMAT >> NAME "agg" >> MIMETYPE "image/png" >> DRIVER "AGG/PNG" >> EXTENSION "png" >> IMAGEMODE "RGBA" >> TRANSPARENT TRUE >> FORMATOPTION "INTERLACE=false" >> END >> >> PROJECTION >> "init=epsg:4326" >> END >> >> WEB >> METADATA >> "wms_srs" "epsg:4326 epsg:3395 epsg:900913 epsg:3995" >> "OWS_ENABLE_REQUEST" "*" >> END >> END >> >> LAYER >> DATA "/tmp/world.tif" >> NAME "countries" >> PROJECTION >> "init=epsg:4326" >> END >> STATUS ON >> TYPE RASTER >> END >> >> END >> >> Output of gdalinfo command: >> $ gdalinfo /tmp/world.tif >> Driver: GTiff/GeoTIFF >> Files: /tmp/world.tif >> Size is 1000, 500 >> Coordinate System is: >> GEOGCS["WGS 84", >> DATUM["WGS_1984", >> SPHEROID["WGS 84",6378137,298.257223563, >> AUTHORITY["EPSG","7030"]], >> AUTHORITY["EPSG","6326"]], >> PRIMEM["Greenwich",0], >> UNIT["degree",0.0174532925199433], >> AUTHORITY["EPSG","4326"]] >> Origin = (-180.000000000000000,90.000000000000000) >> Pixel Size = (0.360000000000000,-0.360000000000000) >> Metadata: >> TIFFTAG_DOCUMENTNAME=/tmp/world.tif >> TIFFTAG_XRESOLUTION=72 >> TIFFTAG_YRESOLUTION=72 >> TIFFTAG_RESOLUTIONUNIT=2 (pixels/inch) >> AREA_OR_POINT=Area >> Image Structure Metadata: >> INTERLEAVE=BAND >> Corner Coordinates: >> Upper Left (-180.0000000, 90.0000000) (180d 0'0.00"W, 90d 0'0.00"N) >> Lower Left (-180.0000000, -90.0000000) (180d 0'0.00"W, 90d 0'0.00"S) >> Upper Right ( 180.0000000, 90.0000000) (180d 0'0.00"E, 90d 0'0.00"N) >> Lower Right ( 180.0000000, -90.0000000) (180d 0'0.00"E, 90d 0'0.00"S) >> Center ( 0.0000000, 0.0000000) ( 0d 0'0.01"E, 0d 0'0.01"N) >> Band 1 Block=1000x8 Type=Byte, ColorInterp=Gray >> >> >> >
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