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annotate m-toolbox/classes/@matrix/times.m @ 0:f0afece42f48

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Import.
author Daniele Nicolodi <nicolodi@science.unitn.it>
date Wed, 23 Nov 2011 19:22:13 +0100
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Daniele Nicolodi <nicolodi@science.unitn.it>
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1 % TIMES implements multiplication operator for matrix objects.
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2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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3 %
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4 % DESCRIPTION: TIMES implements multiplication operator for matrix objects.
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5 %
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6 % CALL: obj = obj1 .* obj2
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7 % obj = times(obj1,obj2);
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8 % obj = times(obj1,obj2,obj3) == times(times(obj1,obj2),obj3)
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9 %
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10 % REMARK: More than two inputs are handled with nested calls.
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11 % (This doesn't work at the moment. Do we need this?)
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12 %
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13 % <a href="matlab:utils.helper.displayMethodInfo('matrix', 'times')">Parameters Description</a>
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14 %
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15 % VERSION: $Id: times.m,v 1.8 2011/04/08 08:56:31 hewitson Exp $
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16 %
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17 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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18
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19 function varargout = times(varargin)
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20
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21 callerIsMethod = utils.helper.callerIsMethod;
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22
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23 % Check if this is a call for parameters
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24 if utils.helper.isinfocall(varargin{:})
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25 varargout{1} = getInfo(varargin{3});
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26 return
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27 end
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28
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29 if nargout == 0
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30 error('### Matrix multiplication operator can not be used as a modifier.');
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31 end
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32
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33 op = 'times';
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34 opname = 'multiplication';
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35 opsym = '.*';
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36 infoObj = getInfo('None');
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37
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38 % collect input variable names
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39 if callerIsMethod
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40 in_names = {};
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41 pl = [];
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42 rest = varargin(:);
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43 else
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44 in_names = cell(size(varargin));
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45 for ii = 1:nargin,if ~isa(varargin{ii}, 'plist'), in_names{ii} = inputname(ii); end, end
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46
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47 % Collect all plists
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48 [pl, pl_invars, rest] = utils.helper.collect_objects(varargin(:), 'plist', in_names);
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49
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50 % Combine default plist
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51 pl = combine(pl, getDefaultPlist());
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52 end
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53
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54 mat = matrix.elementOp(callerIsMethod, op, opname, opsym, infoObj, pl, rest, in_names);
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55
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56
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57 %%%%%%%%%% Prepare output %%%%%%%%%%
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58 if nargout == numel(mat)
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59 for kk=1:numel(mat)
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60 varargout{kk} = mat(kk);
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61 end
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62 else
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63 varargout{1} = mat;
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64 end
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65
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66 end
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67
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68 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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69 % Local Functions %
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70 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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71
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72 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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73 %
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74 % FUNCTION: getInfo
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75 %
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76 % DESCRIPTION: Get Info Object
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77 %
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78 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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79
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80 function ii = getInfo(varargin)
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81
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82 if nargin == 1 && strcmpi(varargin{1}, 'None')
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83 sets = {};
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84 pls = [];
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85 else
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86 sets = {'Default'};
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87 pls = getDefaultPlist;
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88 end
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89 % Build info object
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90 ii = minfo(mfilename, 'matrix', 'ltpda', utils.const.categories.aop, '$Id: times.m,v 1.8 2011/04/08 08:56:31 hewitson Exp $', sets, pls);
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91 ii.setArgsmin(2);
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92 ii.setModifier(false);
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93 end
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94
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95 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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96 %
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97 % FUNCTION: getDefaultPlist
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98 %
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99 % DESCRIPTION: Get Default Plist
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100 %
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101 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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102
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103 function plout = getDefaultPlist()
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104 persistent pl;
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105 if exist('pl', 'var')==0 || isempty(pl)
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106 pl = buildplist();
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107 end
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108 plout = pl;
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109 end
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110
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111 function pl = buildplist()
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112 pl = plist.EMPTY_PLIST;
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113 end