Convert line or polygon parts from vector form to cell arrays
[latcells,loncells] = polysplit(lat,lon)
[latcells,loncells] = polysplit(lat,lon) returns
the NaN-delimited segments of the vectors lat and lon as
N-by-1 cell arrays with one polygon segment per cell. lat and lon must
be the same size and have identically-placed NaNs.
The polygon segments are column vectors if lat and lon are
column vectors, and row vectors otherwise.
lat = [1 2 3 NaN 4 NaN 5 6 7 8 9]';
lon = [9 8 7 NaN 6 NaN 5 4 3 2 1]';
[latcells,loncells] = polysplit(lat,lon);
[latcells loncells]
ans =
[3x1 double] [3x1 double]
[ 4] [ 6]
[5x1 double] [5x1 double]