Andrew, My guess is that you may have mixed up the order of the components of your coordinates in some way. For example, Your BNG example for X = 429362.55 Y = 414762.18 correctly corresponds to Lat = 53* 37' 41.9919" N Lon = -1* 33' 21.4452" W. If we swap Lat and Long components and compute an inverse we get: X = 7889856.582 (not even close to your problem), and Y = -5,833,524.920 which is suspiciously close to your problem. The reason I point this out is that some software likes cartesian coordinates to be entered Easting, Northing, some requires Northing, Easting. Just a thought. -- Clifford J. Mugnier ([EMAIL PROTECTED]) The Topographic Engineering Laboratory Department of Civil and Environmental Engineering UNIVERSITY OF NEW ORLEANS New Orleans, Louisiana 70148 Voice and Facsimile: (504) 280-7095 ---------------------------------------------------------------- Hayes, Andrew wrote: > > Hi all, > > I am pretty naive when it comes to projections etc. > > I have received an Autocad .dwg file and it is requested that I import this > into MapInfo in British National Grid. > > MapInfo only seems to allow the importing of autocad.dxf files, so I > converted the file to MI.tab file using Geographic Explorer Quick > Translator. The resulting file comes in with Non-Earth Meters projection. > Upon converting it to BNG projection when saving a new copy, the copy still > loads in the same place (miles away from where I want it) with an example > being x=1051925.36 y=-5112608.9 as compared to x=429362.55 and y=414762.18, > as required. > > I have tried to update the x & y centroids without success. > > Does anyone have any suggestions?? > > Thanks in advance, > > Andrew Hayes > GIS Analyst/Programmer > Wakefield MDC > > Web: http://www.wakefield.gov.uk/ > E-mail: [EMAIL PROTECTED] > Tel: 01924-(30)5440 > Fax: 01924-(30)5424 > ---------------------------------------------------------------------- To unsubscribe from this list, send e-mail to [EMAIL PROTECTED] and put "unsubscribe MAPINFO-L" in the message body, or contact [EMAIL PROTECTED]
Re: MI Importing Autocad .dwg file to BNG
Cliff Mugnier - University of New Orleans Mon, 14 Feb 2000 08:18:11 -0800
- MI Importing Autocad .dwg file t... Hayes, Andrew
- Cliff Mugnier - University of New Orleans