Question

I want to write the array cloud which is nothing abut a array storing the coordinates of a circular cloud with two columns, of latitude and longitude. I want these coordinates to be written on a text file in a manner like this.

 418.9517   43.9866
 419.2260   44.1501
 419.4826   44.3402
 419.7190   44.5550
 419.9327   44.7923
 420.1217   45.0497

With this code i want to generate multiple no of such files storing the coordinates of a single cloud in one file.

Here a is array with first two columns of latitude and longitude (center of circle) and the third one radius of the circle. And z =size(a).(which is 2905×3). So that makes a total of 2905 files to be written.

for s =1:z(1)
    r= a(s,3);

    ang=0:0.1:2*pi; 
    xp=a(s,1) + r*cos(ang);  
    yp=a(s,2) + r*sin(ang);  
    xp=xp';
    yp= yp';
    cloud = [xp,yp]

    filename = ['Shower_Cloud',s,'number.txt']
    file_id = fopen (filename,'w');
    fprintf(file_id,'%g\t',cloud[]);
    fclose(file_id);
end

The error when i run the code is the main problem i’m not able to diagnose this problem on my own, although i have a feeling its a minor one.

     >> xyz
     D:\Users\Vikram\Documents\MATLAB\Manuela\Version_2\Weather\Shower\xyz.m:
     Too many files open; check that FILES = 20 in
     your CONFIG.SYS file.

     Unexpected error status flag encountered.  Resetting to proper state.

Please ask if i missed on something important to mention.

Answer 1

This is just a guess but one could expect strange behavior when concatenating numbers with strings.
You may want to use num2str(s) in creating the file name.