From: W. Trevor King Date: Thu, 19 May 2011 14:19:57 +0000 (-0400) Subject: Add LCC parameter reference to pyproj page. X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=d22f3c9c46dfa15c9c0d39b9835f68768133a64f;p=mw2txt.git Add LCC parameter reference to pyproj page. --- diff --git a/posts/pyproj.mdwn b/posts/pyproj.mdwn index 5c1ebb5..592baaf 100644 --- a/posts/pyproj.mdwn +++ b/posts/pyproj.mdwn @@ -64,7 +64,8 @@ reference ellipsoid for the lat/lng coordinates. The other coordinates are LCC parameters that select the [AWIPS 221][awips221] and [AWIPS 226][awips226] projections respectively (`lat_1` corresponds to `Latin1`, `lat_2` corresponds to `Latin2`, and `lon_0` -corresponds to `Lov`). +corresponds to `Lov`; see [this description][lcc-param] of the +two-standard-parallel LCC and its PROJ.4 parameters). Convert our lat/lng pairs into grid points: @@ -150,6 +151,7 @@ conversions, [GeographicLib][] looks promising. [LCC]: http://en.wikipedia.org/wiki/Lambert_conformal_conic_projection [awips221]: http://www.nco.ncep.noaa.gov/pmb/docs/on388/tableb.html#GRID221 [awips226]: http://www.nco.ncep.noaa.gov/pmb/docs/on388/tableb.html#GRID218 +[lcc-param]: http://www.remotesensing.org/geotiff/proj_list/lambert_conic_conformal_2sp.html [UTM]: http://en.wikipedia.org/wiki/Universal_Transverse_Mercator_coordinate_system [zone]: http://en.wikipedia.org/wiki/Universal_Transverse_Mercator_coordinate_system#UTM_zone [geopy]: http://code.google.com/p/geopy/