You said: Date: Tue, 4 Jul 2006 17:10:29 +0100 From: "John Eyre" <[EMAIL PROTECTED]> Subject: [MI-L] Changing the bounds clause To: "MapInfo" <[email protected]> Message-ID: <[EMAIL PROTECTED]> Content-Type: text/plain; charset="iso-8859-1"
I've already had help with this problem but clearly not enough! First the problem. I am using 1:10,000 Ordnance Survey maps and overlaying these with site outlines. When I open the site outline table, the detail on the underlying OS map goes into square blocks. I have been advised that this is because the coordinate system of the OS map window is being limited by the bounds of the site layer. To correct this, I have to change the bounds of the site layer so that it doesn't control the spatial granularity of the OS Map. I need help in actually doing this! Can anyone spell out in layman's terms how I go about it? Many thanks. John ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- You need to save a copy of your original table - File Save As - that allows you to change the projection. The standard British National Grid projection covers the whole world, so should be good enough. If you're using version 8, then there's the 1mm accuracy option, if you wish. My guess is, though, that its a different projection rather than different bounds. You can look (using a text editor) at the tab file defining your rasters, the whole earth national grid has a line : CoordSys Earth Projection 8, 79, "m", -2, 49, 0.9996012717, 400000, -100000 And you can use the tool "Table Manager" to look at the projection information for any of your tables. Hope that helps Denis _________________________ Denis W Payne GIS Manager Cambridgeshire County Council Tel: 01223 717868 The information in this email is confidential and may be legally privileged. It is intended solely for the addressee. If you receive this email by mistake please notify the sender and delete it immediately. Opinions expressed are those of the individual and do not necessarily represent the opinion of Cambridgeshire County Council. All sent and received email from Cambridgeshire County Council is automatically scanned for the presence of computer viruses and security issues. _______________________________________________ MapInfo-L mailing list [email protected] http://www.directionsmag.com/mailman/listinfo/mapinfo-l
