Changes between Initial Version and Version 1 of Processing/LLToBNG


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Timestamp:
Jun 4, 2008, 6:32:18 PM (16 years ago)
Author:
benj
Comment:

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  • Processing/LLToBNG

    v1 v1  
     1I'll flesh this out when I've written a script to convert TM coordinates to BNG, but for now use the following proj command to convert from lat/long to TM
     2
     3{{{
     4proj +proj=tmerc +ellps=airy +lat_0=49 +lon_0=-2 +x_0=400000 +y_0=-100000 +k=0.9996012717
     5}}}
     6
     7Then once that's running you enter the lat/long to be converted at the prompt in x y format (ie long then lat) and it will return transverse mercator co-ordinates in the BNG co-ordinate system (still have to convert to the right OS grid square though).