christopherh@1: %
christopherh@1: % DEGREE2INTERVAL
christopherh@1: % 
christopherh@1: % [interval,success,errormessage] = degree2interval(degree,accidentals,{verbose})
christopherh@1: % 
christopherh@1: % Converts a degree and accidental pair to an interval string.
christopherh@1: % 
christopherh@1: % Success = 1 if degree converted correctly, 0 otherwise.
christopherh@1: % 
christopherh@1: % If optional argument 'verbose' is 1, function prints any errormessage to 
christopherh@1: % the screen.
christopherh@1: % 
christopherh@1: % returns:  interval (string)
christopherh@1: %           success (boolean)
christopherh@1: %           errormessage (string)
christopherh@1: %
christopherh@1: % Author: Christopher Harte, March 2009
christopherh@1: % 
christopherh@1: % Copyright: Centre for Digital Music, Queen Mary University of London 2005 
christopherh@1: %
christopherh@1: % This file is part of the C4DM Chord Toolkit V2.0 
christopherh@1: %
christopherh@1: % The C4DM Chord Toolkit is free software; you can redistribute it and/or 
christopherh@1: % modify it under the terms of the GNU General Public License as published 
christopherh@1: % by the Free Software Foundation; either version 2 of the License, or
christopherh@1: % (at your option) any later version.
christopherh@1: %
christopherh@1: % The C4DM Chord Toolkit is distributed in the hope that it will be useful,
christopherh@1: % but WITHOUT ANY WARRANTY; without even the implied warranty of
christopherh@1: % MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
christopherh@1: % GNU General Public License for more details.
christopherh@1: %
christopherh@1: % You should have received a copy of the GNU General Public License
christopherh@1: % along with the C4DM Toolkit; if not, write to the Free Software
christopherh@1: % Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
christopherh@1: 
christopherh@1: %		
christopherh@1: function [interval,success,errormessage] = degree2interval(degree,accidentals, verbose)
christopherh@1: 
christopherh@1: % set verbose default to 0
christopherh@1: if nargin < 3
christopherh@1:     verbose = 0;
christopherh@1: end
christopherh@1: 
christopherh@1: errormessage = '';
christopherh@1: 
christopherh@1: 
christopherh@1: success = 1;
christopherh@1: interval = '';
christopherh@1: 
christopherh@1: 
christopherh@1: if accidentals >=1
christopherh@1:    % then the degree is either a natural or has a number of sharps 
christopherh@1:     if accidentals ~= 0
christopherh@1:         for index = 1:accidentals 
christopherh@1:             interval = [interval '#'];
christopherh@1:         end
christopherh@1:     end
christopherh@1:     
christopherh@1: else
christopherh@1:     % then the degree has a number of flats
christopherh@1:     
christopherh@1:     for index = 1:abs(accidentals) 
christopherh@1:    
christopherh@1:         interval = [interval 'b'];
christopherh@1:     end
christopherh@1:     
christopherh@1: end
christopherh@1: 
christopherh@1: if isnumeric(degree)
christopherh@1:     
christopherh@1:     degreestring = num2str(degree);
christopherh@1:     interval = [interval degreestring];
christopherh@1:     
christopherh@1: else
christopherh@1:    success = 0;
christopherh@1:    errormessage = 'Error in degree2interval: incorrect degree';
christopherh@1: end
christopherh@1:     
christopherh@1: if (success == 0) && (verbose == 1)   
christopherh@1:     fprintf(1,errormessage);
christopherh@1: end  
christopherh@1: 
christopherh@1: