Re: Plotting data to a Lambert Conformal Conic projection

On Mar 16, 7:47 am, Richard Owlett <rowl...@xxxxxxxxxxxxx> wrote:
I wish to plots some locations generally in the Continental US {~20N to
~50N and ~70W to ~130W}.

 From looking atwww.colorado.edu/geography/gcraft/notes/mapproj/mapproj..htmlI assume I
am used to maps using a Lambert Conformal Conic projection.

My data is latitude and longitude (WGS 84 datum) and I wish my map to be
centered on the geographical center of the US. I've found the general
form of the equations athttp://surveying.wb.psu.edu/sur162/ConicComps/ConicComps.htmbut the
constants are for a map in Pennsylvania and the image showing references
of the constants is to small. Best case: is there a program with
appropriate constants that I can work from?

TIA

This may be overkill, but it's free:

http://earth-info.nga.mil/GandG/geotrans/index.html

This is probably too tedious (one input/output at a time), but it's
interactive, appears to allow selection of projection type, etc.:

http://geoengine.nga.mil/geospatial/SW_TOOLS/NIMAMUSE/webinter/geotrans.html

Some other stuff:

http://egsc.usgs.gov/isb/pubs/MapProjections/projections.html#lambert2

http://earth-info.nga.mil/GandG/coordsys/geoarticles/pdfs/Article014_Projections_and_NGA_Products.pdf
.

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