Re: [GRASS-user] reprojection problem

2011-12-15 Thread Hamish
Markus Metz wrote: > In short, Lambert Azimuthal Equal Area projection centered > on the north pole can not represent the whole earth. If you're focused on the N pole, Polar Stereographic projection may be the way to go. e.g. NASA's Blue Marble 2002 and Night on Earth reprojected from lat/long:

Re: [GRASS-user] reprojection problem

2011-12-15 Thread Markus Metz
On Thu, Dec 15, 2011 at 6:11 PM, Tyler Smith wrote: > Hi, > > I'm a GIS novice, trying to reproject a vector layer. My objective is to get > a world map > projected into Lambert Equal-Area, centered on the north pole. I chose this > projection > as it shows the entire arctic well, but I don't have

[GRASS-user] reprojection problem

2011-12-15 Thread Tyler Smith
Hi, I'm a GIS novice, trying to reproject a vector layer. My objective is to get a world map projected into Lambert Equal-Area, centered on the north pole. I chose this projection as it shows the entire arctic well, but I don't have to use Lambert Equal-Area specifically. This is what I've tried

Re: [GRASS-user] reprojection problem

2007-11-26 Thread Maciej Sieczka
The missing [1] link: [1]http://proj.maptools.org/faq.html Maciek ___ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user

Re: [GRASS-user] reprojection problem

2007-11-26 Thread Maciej Sieczka
Hi, The unexpected shift after re-projection might be due to your input Earth model being a sphere, and the output an ellipsoid. PROJ.4 FAQ has an explanation [1] (the "Changing Ellipsoid / Why can't I convert from WGS84 to Virtual Earth Mercator?" part). Shortly put it is about using "[EMAIL PROT

[GRASS-user] reprojection problem

2007-11-20 Thread YOSHIFUJI Natsuko
Hello. I have some trouble in reprojection of raster map. Could anyone help me, please? Excuse me for very long message below... I imported Eurasia Land Cover Characteristics data in Lambert Azimuthal Equal Area Projection (Optimized for Asia) downloaded from http://edc2.usgs.gov/glcc/tablamber