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comparison m-toolbox/classes/@matrix/plus.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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-1:000000000000 0:f0afece42f48
1 % PLUS implements addition operator for matrix objects.
2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3 %
4 % DESCRIPTION: PLUS implements addition operator for two matrix objects.
5 %
6 % CALL: obj = obj1+obj2
7 % obj = plus(obj1,obj2);
8 % obj = plus(obj1,obj2,obj3) == plus(plus(obj1,obj2),obj3)
9 %
10 % REMARK: More than two inputs are handled with nested calls.
11 % (This doesn't work at the moment. Do we need this?)
12 %
13 % <a href="matlab:utils.helper.displayMethodInfo('matrix', 'plus')">Parameters Description</a>
14 %
15 % VERSION: $Id: plus.m,v 1.8 2011/04/08 08:56:31 hewitson Exp $
16 %
17 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
18
19 function varargout = plus(varargin)
20
21 callerIsMethod = utils.helper.callerIsMethod;
22
23 % Check if this is a call for parameters
24 if utils.helper.isinfocall(varargin{:})
25 varargout{1} = getInfo(varargin{3});
26 return
27 end
28
29 if nargout == 0
30 error('### Addition operator can not be used as a modifier.');
31 end
32
33 op = 'plus';
34 opname = 'addition';
35 opsym = '+';
36 infoObj = getInfo('None');
37
38 % collect input variable names
39 in_names = cell(size(varargin));
40 for ii = 1:nargin,if ~isa(varargin{ii}, 'plist'), in_names{ii} = inputname(ii); end, end
41
42 % Collect all plists
43 [pl, pl_invars, rest] = utils.helper.collect_objects(varargin(:), 'plist', in_names);
44
45 % Combine default plist
46 pl = combine(pl, getDefaultPlist());
47
48 mat = matrix.elementOp(callerIsMethod, op, opname, opsym, infoObj, pl, rest, in_names);
49
50 %%%%%%%%%% Prepare output %%%%%%%%%%
51 if nargout == numel(mat)
52 for kk=1:numel(mat)
53 varargout{kk} = mat(kk);
54 end
55 else
56 varargout{1} = mat;
57 end
58
59 end
60
61 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
62 % Local Functions %
63 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
64
65 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
66 %
67 % FUNCTION: getInfo
68 %
69 % DESCRIPTION: Get Info Object
70 %
71 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
72
73 function ii = getInfo(varargin)
74
75 if nargin == 1 && strcmpi(varargin{1}, 'None')
76 sets = {};
77 pls = [];
78 else
79 sets = {'Default'};
80 pls = getDefaultPlist;
81 end
82 % Build info object
83 ii = minfo(mfilename, 'matrix', 'ltpda', utils.const.categories.aop, '$Id: plus.m,v 1.8 2011/04/08 08:56:31 hewitson Exp $', sets, pls);
84 ii.setArgsmin(2);
85 ii.setModifier(false);
86 end
87
88 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
89 %
90 % FUNCTION: getDefaultPlist
91 %
92 % DESCRIPTION: Get Default Plist
93 %
94 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
95
96 function plout = getDefaultPlist()
97 persistent pl;
98 if exist('pl', 'var')==0 || isempty(pl)
99 pl = buildplist();
100 end
101 plout = pl;
102 end
103
104 function pl = buildplist()
105 pl = plist.EMPTY_PLIST;
106 end