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READHGT: Import/download NASA SRTM data files (.HGT)

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READHGT: Import/download NASA SRTM data files (.HGT)

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25 Apr 2012 (Updated )

Imports or download SRTM worldwide digital elevation model data files.

seacolor(n)
function y = seacolor(n)
%SEACOLOR Sea colormap adapted from NGDC ETOPO1
%
%	Author: Francois Beauducel <beauducel@ipgp.fr>

J = [ ...
    0.0392         0    0.4745
    0.1020         0    0.5373
    0.1020         0    0.5373
    0.1490         0    0.5961
    0.1490         0    0.5961
    0.1059    0.0118    0.6510
    0.1059    0.0118    0.6510
    0.0627    0.0235    0.7059
    0.0627    0.0235    0.7059
    0.0196    0.0353    0.7569
    0.0196    0.0353    0.7569
         0    0.0549    0.7961
         0    0.0549    0.7961
         0    0.0863    0.8235
         0    0.0863    0.8235
         0    0.1176    0.8471
         0    0.1176    0.8471
         0    0.1529    0.8745
         0    0.1529    0.8745
    0.0471    0.2667    0.9059
    0.0471    0.2667    0.9059
    0.1020    0.4000    0.9412
    0.1020    0.4000    0.9412
    0.0745    0.4588    0.9569
    0.0745    0.4588    0.9569
    0.0549    0.5216    0.9765
    0.0549    0.5216    0.9765
    0.0824    0.6196    0.9882
    0.0824    0.6196    0.9882
    0.1176    0.6980    1.0000
    0.1176    0.6980    1.0000
    0.1686    0.7294    1.0000
    0.1686    0.7294    1.0000
    0.2157    0.7569    1.0000
    0.2157    0.7569    1.0000
    0.2549    0.7843    1.0000
    0.2549    0.7843    1.0000
    0.3098    0.8235    1.0000
    0.3098    0.8235    1.0000
    0.3686    0.8745    1.0000
    0.3686    0.8745    1.0000
    0.5412    0.8902    1.0000
    0.5412    0.8902    1.0000
    0.7373    0.9020    1.0000
];

l = length(J);
if nargin < 1
	n = 256;
end
y = interp1(1:l,J,linspace(1,l,n),'*linear');

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