Hi Caroline, There a few things that MapInfo takes into consideration when deciding which raster gets the lead.
1. The raster layer covering the largest part of the map This is mostly the case, at least until the later versions where Ii think they shifted to 2 2. The upper raster layer The problem could be that you had to rasters in the map, but only the upper was visible. In this case the upper controls the coordinate system. I'm not quite sure exatly when this changed. With MapInfo 8.5 these problems are gone. MapInfo 8.5 supports the reprojection of raster. Peter Horsbøll Møller GIS Developer, MTM Geographical Information & IT COWI A/S Odensevej 95 DK-5260 Odense S. Denmark Tel +45 6311 4900 Direct +45 6311 4908 Mob +45 5156 1045 Fax +45 6311 4949 E-mail [EMAIL PROTECTED] http://www.cowi.dk/gis -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Caroline Hilton Sent: Monday, June 12, 2006 6:12 PM To: MapInfo-L@lists.directionsmag.com Subject: [MI-L] Raster images in different coordinate systems Hello I am currently working in an area which straddles the border of 2 UTM coordinate systems. Working with raster images registered in these systems, they don't quite "meet", with offsets, gaps, overlaps and even different sizes where they should match up. Does anyone know how MapInfo displays the images in the same window? i.e. how one raster would be "warped" compared to the other one in the map window? Or how MapInfo deals with the second raster to be placed in the window when it's a different coordinate system? I know the map window projection can't be changed once a raster appears, and that it takes the projection of the initial raster, but what does it do with the second one? Cheers Caroline ---------------------------------- Dr Caroline Hilton Pelican GeoGraphics Ltd www.pelicangeographics.co.uk ............................................................................ .. Encom Discover 3D is out now. For a true 3D environment within MapInfo, contact us now for an evaluation. _______________________________________________ MapInfo-L mailing list MapInfo-L@lists.directionsmag.com http://www.directionsmag.com/mailman/listinfo/mapinfo-l _______________________________________________ MapInfo-L mailing list MapInfo-L@lists.directionsmag.com http://www.directionsmag.com/mailman/listinfo/mapinfo-l
