I have an irregularly gridded latitude/longitude data set. Although
the data is in a polar (radius, azimuth) format like a radar swath, I have
the exact lat/lon position for each point. I cannot plot the data
using map_image because that requires a regular grid. I used map_patch
successfully on small portions of the data. Unfortunately, any attempts
to plot larger portions of the data using map_patch result in the error:
% TRIANGULATE: Points are co-linear, no solution.
% Error occurred at: MAP_PATCH
181
/usr/local/rsi/idl_5.2/lib/map_patch.pro
Does anyone know:
a) how to plot this type of "radar swath" data onto a map?
or
b) how to sort the data in a way to work around the problem
of "co-linear" points?
-- Tom Spisz =============================== The Applied Physics Laboratory The Johns Hopkins University Bldg 4 Room 138 (240) 228-7260 (443) 778-7260 Tom.Spisz@jhuapl.edu