char_2_num.m

MAP Toolbox for matlab. World map included.

%CHAR_2_NUM: This function converts the latitude and longitude in html page which
%    is usually like "latitude, longitude" to numbers(class double) and
%    store in separate variables, "latitude","longitude".
%
%  Syntax>>
%   [latitude,longitude]=char_2_num(a)
%
%  Input "a" has class char array and both outputs, latitude and longitude
%      are double.
%  For example, if a='45.6756, 56.3435', then [p q]=char_2_num(a) results
%     in p=45 and q=56 (decimals are neglected).

function [latitude,longitude]=char_2_num(a)

lat=[];
for i=1:length(a)
    if a(i)~=','
        lat=[lat a(i)];
    else,sep=i;
       break,end
end
lon=[];
for i=sep+2:length(a)
    if a(i)~=' '
        lon=[lon a(i)];
    else,break,end
end
lat=lat-48;
latt=[];
for i=1:length(lat)
    if lat(i)~=-2
    latt=[latt lat(i)];
    else,break,end
end
lon=lon-48;
long=[];
for i=1:length(lon)
    if lon(i)~=-2
    long=[long lon(i)];
    else,break,end
end

latt=fliplr(latt);
long=fliplr(long);

latitude=0;
for i=1:length(latt)
    latitude=latitude+latt(i)*power(10,i-1);
end

longitude=0;
for i=1:length(long)
    longitude=longitude+long(i)*power(10,i-1);
end


if latt(length(latt))==-3
    latitude=-(latitude+3*power(10,length(latt)-1));
end
if long(length(long))==-3
    longitude=-(longitude+3*power(10,length(long)-1));
end