Am Sonntag, den 24.10.2010, 17:12 +0200 schrieb Chris Browet: > > At this photo, the background doesn't fit at all (due to > projection) > > http://picasaweb.google.com/lh/photo/GuC2cacBVQVfFD13LGLmYaPDFtHHugbL4UR4b9mel2I?feat=directlink > > Mmm... That shouldn't happen. What steps did you take to have this > image? That seems to me like a projection problem: the wms images are epsg:3857 (if I remember the correct value) the map ist epsg:4326 I first loaded the osm map, then a new layer with a right-click on the layer--> wms-adapter --> wms server mentioned earlier: (http://wms.pcn.minambiente.it/cgi-bin/mapserv.exe?map=/ms_ogc/service/ortofoto_colore_06.map&;) (in the wms editor without "tile it" and zoom level 0
With a right clock on the layer --> set view projection to layers is just the second image > > Here it does fit, but the buildings aren't perpendicular > > http://picasaweb.google.com/lh/photo/NnAsPY4cGoSRe9uKt_fWTKPDFtHHugbL4UR4b9mel2I?feat=directlink > > Are they then "normal" perpendicular in the osm map, if I draw > them like > these buildings in the second photo? > > > You don't have a clear idea of what a projection is, do you? I suggest > you have a look at the wikipedia article > (http://en.wikipedia.org/wiki/Map_projection). > Not really a clear look, but just an idea, that there are different projections. > So, to see perfectly "square" buildings in this specific part of > Italy, you'd have to use the specific projection designed by the > geographical institutions of Italy for this specific region. OSM is > only recording the lat/lon of the nodes. So anyone needing to see > square buildings there would need to take the osm data and paint the > map using this specific projection. So it doesn't seem to make sense to build perpendicular buildings in the above mentioned projection, so that I see in the osm map perpendicular buildings. _______________________________________________ Merkaartor mailing list [email protected] http://lists.openstreetmap.org/listinfo/merkaartor
