diff chordtools/notes2fifthpositions.m @ 1:8973548174c1 tip

adding tools to repo

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/chordtools/notes2fifthpositions.m	Mon May 06 14:43:47 2013 +0100
@@ -0,0 +1,80 @@
+%
+%NOTES2FIFTHPOSITIONS convert notes list to positions on line of fifths
+% 
+% [pitchclasses, success, errormessage] = notes2fifthpostions(notes, {verbose})
+% 
+% Converts a cell array of note strings to an array of integers denoting 
+% positions on the line of fifths with C as reference position 0.
+% 
+% Success = 1 if symbols converted correctly, 0 otherwise.
+% 
+% If optional argument 'verbose' is 1, function prints any errormessage to 
+% the screen.
+% 
+% calls:    note2pitchclass
+% 
+% returns:  pitchclasses (array of integers)
+%           success (boolean)
+%           errormessage (string)
+%
+%
+% Author: Christopher Harte,  March 2009
+% 
+% Copyright: Centre for Digital Music, Queen Mary University of London 2005 
+%
+% This file is part of the C4DM Chord Toolkit V2.0  
+%
+% The C4DM Chord Toolkit is free software; you can redistribute it and/or 
+% modify it under the terms of the GNU General Public License as published 
+% by the Free Software Foundation; either version 2 of the License, or
+% (at your option) any later version.
+%
+% The C4DM Chord Toolkit is distributed in the hope that it will be useful,
+% but WITHOUT ANY WARRANTY; without even the implied warranty of
+% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+% GNU General Public License for more details.
+%
+% You should have received a copy of the GNU General Public License
+% along with the C4DM Toolkit; if not, write to the Free Software
+% Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+%
+
+function [fifthpositions, success, errormessage] = notes2fifthpostions(notes, verbose)
+
+% set verbose default to 0
+if nargin < 2
+    verbose = 0;
+end
+
+errormessage = '';
+
+ilength = length(notes);
+
+index = 1;
+
+success = 1;
+
+fifthpositions = [];
+
+while index <= ilength
+    
+        [fifthpositions(index), success, errormessage] = note2fifthposition(char(notes(index)));
+    
+        if success
+            index=index+1;
+        else
+            errormessage = [errormessage sprintf(['Error in notes2fifthpostions: couldn''t convert notes "' notes '"\n'])];
+            index = ilength +1;            
+        end
+    
+    
+end
+
+if (success == 0) && (verbose == 1)
+
+    fprintf(1,errormessage)
+    
+end    
+
+
+