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annotate m-toolbox/classes/@collection/getObjectAtIndex.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 % GETOBJECTATINDEX index into the inner objects of one collection object.
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2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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3 %
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4 % DESCRIPTION: GETOBJECTATINDEX index into the inner objects of one
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5 % collection object.
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6 % This doesn't captures the history.
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7 %
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8 % CALL: b = getObjectAtIndex(coll, i)
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9 % b = getObjectAtIndex(coll, i, j)
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10 % b = coll.getObjectAtIndex(plist('I', i))
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11 % b = coll.getObjectAtIndex(plist('I', i, 'J', j))
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12 %
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13 % <a href="matlab:utils.helper.displayMethodInfo('collection', 'getObjectAtIndex')">Parameters Description</a>
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14 %
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15 % VERSION: $Id: getObjectAtIndex.m,v 1.8 2011/04/08 08:56:21 hewitson Exp $
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16 %
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17 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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18
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19 function varargout = getObjectAtIndex(varargin)
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20
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21 % Check if this is a call for parameters
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22 if utils.helper.isinfocall(varargin{:})
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23 varargout{1} = getInfo(varargin{3});
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24 return
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25 end
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26
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27 if nargout == 0
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28 error('### getObjectAtIndex cannot be used as a modifier. Please give an output variable.');
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29 end
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30
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31 import utils.const.*
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32 utils.helper.msg(msg.PROC3, 'running %s/%s', mfilename('class'), mfilename);
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33
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34 % Collect input variable names
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35 in_names = cell(size(varargin));
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36 for ii = 1:nargin,in_names{ii} = inputname(ii);end
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37
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38 % Collect all 'ltpda_uoh' objects and plists
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39 [cobjs, obj_invars, rest] = utils.helper.collect_objects(varargin(:), 'collection', in_names);
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40 [pl, pl_invars, rest] = utils.helper.collect_objects(rest(:), 'plist', in_names);
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41
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42 % Combine plists
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43 pl = combine(pl, getDefaultPlist);
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44
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45 % Get indices
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46 idxi = find(pl, 'i');
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47 idxj = find(pl, 'j');
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48 if isempty(idxi) || isempty(idxj)
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49 % go through the other inputs
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50 for jj = 1:numel(rest)
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51 if isnumeric(rest{jj}) && isempty(idxi)
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52 idxi = rest{jj};
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53 elseif isnumeric(rest{jj}) && isempty(idxj)
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54 idxj = rest{jj};
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55 end
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56 end
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57 end
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58
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59 if isempty(idxi) && isempty(idxj)
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60 error('### Please provide an index or an index pair.');
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61 end
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62
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63 % Now index with either (i) or (i,j)
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64 if isempty(idxj)
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65 if isa(cobjs.objs{idxi}, 'ltpda_obj')
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66 aout = copy(cobjs.objs{idxi}, 1);
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67 else
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68 aout = cobjs.objs{idxi};
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69 end
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70 pl.pset('i', idxi);
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71 else
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72 if isa(cobjs.objs{idxi, idxj}, 'ltpda_obj')
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73 aout = copy(cobjs.objs{idxi, idxj}, 1);
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74 else
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75 aout = cobjs.objs{idxi, idxj};
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76 end
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77 pl.pset('i', idxi);
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78 pl.pset('j', idxj);
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79 end
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80
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81 aout.addHistory(getInfo('None'), pl, obj_invars(1), cobjs.hist);
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82
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83 % Set output
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84 varargout{1} = aout;
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85 end
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86
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87 %--------------------------------------------------------------------------
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88 % Get Info Object
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89 %--------------------------------------------------------------------------
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90 function ii = getInfo(varargin)
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91 if nargin == 1 && strcmpi(varargin{1}, 'None')
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92 sets = {};
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93 pl = [];
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94 else
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95 sets = {'Default'};
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96 pl = getDefaultPlist();
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97 end
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98 % Build info object
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99 ii = minfo(mfilename, 'collection', 'ltpda', utils.const.categories.helper, '$Id: getObjectAtIndex.m,v 1.8 2011/04/08 08:56:21 hewitson Exp $', sets, pl);
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100 ii.setModifier(false);
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101 end
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102
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103 %--------------------------------------------------------------------------
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104 % Get Default Plist
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105 %--------------------------------------------------------------------------
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106 function plout = getDefaultPlist()
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107 persistent pl;
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108 if ~exist('pl', 'var') || isempty(pl)
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109 pl = buildplist();
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110 end
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111 plout = pl;
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112 end
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113
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114 function plo = buildplist()
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115
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116 plo = plist();
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117
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118 p = param({'I', 'The I index of the inner object vector or matrix.'}, paramValue.EMPTY_DOUBLE);
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119 plo.append(p);
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120
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121 p = param({'J', 'The J index of the inner object matrix.'}, paramValue.EMPTY_DOUBLE);
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122 plo.append(p);
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123
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124 end
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125