1 | % function ParamOut=particle_tracking(Param) |
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2 | % |
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3 | % Method: |
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4 | |
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5 | % Organization of image indices: |
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6 | |
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7 | %INPUT: |
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8 | % num_i1: matrix of image indices i |
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9 | % num_j1: matrix of image indices j, must be the same size as num_i1 |
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10 | % num_i2 and num_j2: not used for a function acting on images |
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11 | % Series: matlab structure containing parameters, as defined by the interface UVMAT/series |
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12 | % Series.RootPath{1}: path to the image series |
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13 | % Series.RootFile{1}: root file name |
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14 | % Series.FileExt{1}: image file extension |
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15 | % Series.NomType{1}: nomenclature type for file in |
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16 | % |
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17 | % Method: |
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18 | % Series.NbSlice: %number of slices defined on the interface |
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19 | % global A rangx0 rangy0 minA maxA; % make current image A accessible in workspace |
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20 | % global hfig1 hfig2 scalar |
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21 | % global Abackg nbpart lum diam |
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22 | %%%%%%%%%%%%%%ΓΉ |
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23 | % |
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24 | %%%%%%%%%%% GENERAL TO ALL SERIES ACTION FCTS %%%%%%%%%%%%%%%%%%%%%%%%%%% |
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25 | % |
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26 | %OUTPUT |
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27 | % ParamOut: sets options in the GUI series.fig needed for the function |
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28 | % |
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29 | %INPUT: |
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30 | % In run mode, the input parameters are given as a Matlab structure Param copied from the GUI series. |
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31 | % In batch mode, Param is the name of the corresponding xml file containing the same information |
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32 | % when Param.Action.RUN=0 (as activated when the current Action is selected |
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33 | % in series), the function ouput paramOut set the activation of the needed GUI elements |
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34 | % |
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35 | % Param contains the elements:(use the menu bar command 'export/GUI config' in series to |
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36 | % see the current structure Param) |
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37 | % .InputTable: cell of input file names, (several lines for multiple input) |
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38 | % each line decomposed as {RootPath,SubDir,Rootfile,NomType,Extension} |
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39 | % .OutputSubDir: name of the subdirectory for data outputs |
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40 | % .OutputDirExt: directory extension for data outputs |
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41 | % .Action: .ActionName: name of the current activated function |
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42 | % .ActionPath: path of the current activated function |
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43 | % .ActionExt: fct extension ('.m', Matlab fct, '.sh', compiled Matlab fct |
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44 | % .RUN =0 for GUI input, =1 for function activation |
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45 | % .RunMode='local','background', 'cluster': type of function use |
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46 | % |
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47 | % .IndexRange: set the file or frame indices on which the action must be performed |
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48 | % .FieldTransform: .TransformName: name of the selected transform function |
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49 | % .TransformPath: path of the selected transform function |
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50 | % .InputFields: sub structure describing the input fields withfields |
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51 | % .FieldName: name(s) of the field |
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52 | % .VelType: velocity type |
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53 | % .FieldName_1: name of the second field in case of two input series |
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54 | % .VelType_1: velocity type of the second field in case of two input series |
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55 | % .Coord_y: name of y coordinate variable |
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56 | % .Coord_x: name of x coordinate variable |
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57 | % .ProjObject: %sub structure describing a projection object (read from ancillary GUI set_object) |
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58 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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59 | |
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60 | function ParamOut=particle_tracking(Param) |
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61 | |
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62 | %% set the input elements needed on the GUI series when the action is selected in the menu ActionName |
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63 | if isstruct(Param) && isequal(Param.Action.RUN,0) |
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64 | % general settings of the GUI: |
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65 | ParamOut.AllowInputSort='off';% allow alphabetic sorting of the list of input file SubDir (options 'off'/'on', 'off' by default) |
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66 | ParamOut.WholeIndexRange='off';% prescribes the file index ranges from min to max (options 'off'/'on', 'off' by default) |
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67 | ParamOut.NbSlice='off'; %nbre of slices ('off' by default) |
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68 | ParamOut.VelType='off';% menu for selecting the velocity type (options 'off'/'one'/'two', 'off' by default) |
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69 | ParamOut.FieldName='off';% menu for selecting the field (s) in the input file(options 'off'/'one'/'two', 'off' by default) |
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70 | ParamOut.FieldTransform = 'off';%can use a transform function |
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71 | ParamOut.ProjObject='off';%can use projection object(option 'off'/'on', |
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72 | ParamOut.Mask='off';%can use mask option (option 'off'/'on', 'off' by default) |
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73 | ParamOut.OutputDirExt='.track';%set the output dir extension |
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74 | ParamOut.OutputFileMode='NbSlice';% '=NbInput': 1 output file per input file index, '=NbInput_i': 1 file per input file index i, '=NbSlice': 1 file per slice |
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75 | filecell=get_file_series(Param);%check existence of the first input file |
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76 | if ~exist(filecell{1,1},'file') |
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77 | msgbox_uvmat('WARNING','the first input file does not exist') |
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78 | end |
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79 | % parameters specific to the function 'particle_tracking' |
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80 | % Par.Nblock=[];%size of image subblocks for background determination, =[]: no sublock |
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81 | % Par.ThreshLum=-2000;% luminosity threshold for particle detection, < 0 for black particles, >0 for white particles |
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82 | % ParamOut.ActionInput=Par; |
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83 | return |
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84 | end |
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85 | |
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86 | %%%%%%%%%%%% STANDARD RUN PART %%%%%%%%%%%% |
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87 | ParamOut=[]; |
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88 | %% read input parameters from an xml file if input is a file name (batch mode) |
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89 | checkrun=1; |
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90 | if ischar(Param) |
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91 | Param=xml2struct(Param);% read Param as input file (batch case) |
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92 | checkrun=0; |
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93 | end |
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94 | |
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95 | %% define the directory for result file |
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96 | OutputDir=[Param.OutputSubDir Param.OutputDirExt]; |
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97 | |
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98 | %% root input file(s) name, type and index series |
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99 | RootPath=Param.InputTable{1,1}; |
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100 | RootFile=Param.InputTable{1,3}; |
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101 | SubDir=Param.InputTable{1,2}; |
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102 | NomType=Param.InputTable{1,4}; |
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103 | FileExt=Param.InputTable{1,5}; |
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104 | [filecell,i1_series,i2_series,j1_series,j2_series]=get_file_series(Param); |
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105 | %%%%%%%%%%%% |
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106 | % The cell array filecell is the list of input file names, while |
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107 | % filecell{iview,fileindex}: |
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108 | % iview: line in the table corresponding to a given file series |
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109 | % fileindex: file index within the file series, |
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110 | % i1_series(iview,ref_j,ref_i)... are the corresponding arrays of indices i1,i2,j1,j2, depending on the input line iview and the two reference indices ref_i,ref_j |
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111 | % i1_series(iview,fileindex) expresses the same indices as a 1D array in file indices |
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112 | %%%%%%%%%%%% |
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113 | nbview=numel(i1_series);%number of input file series (lines in InputTable) |
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114 | nbfield_j=size(i1_series{1},1); %nb of fields for the j index (bursts or volume slices) |
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115 | nbfield_i=size(i1_series{1},2); %nb of fields for the i index |
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116 | nbfield=nbfield_j*nbfield_i; %total number of fields |
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117 | |
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118 | %% frame index for movie or multimage file input |
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119 | if ~isempty(j1_series{1}) |
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120 | frame_index=j1_series{1}; |
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121 | else |
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122 | frame_index=i1_series{1}; |
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123 | end |
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124 | |
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125 | %% check the input file type |
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126 | [FileType,FileInfo,VideoObject]=get_file_type(filecell{1,1}); |
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127 | ImageTypeOptions={'image','multimage','mmreader','video'}; |
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128 | if isempty(find(strcmp(FileType,ImageTypeOptions))) |
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129 | disp('input file not images') |
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130 | return |
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131 | end |
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132 | |
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133 | %% calibration data and timing: read the ImaDoc files |
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134 | [XmlData,NbSlice_calib,time,errormsg]=read_multimadoc(RootPath,SubDir,RootFile,FileExt,i1_series,i2_series,j1_series,j2_series); |
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135 | |
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136 | %%%%%%%%%%%% SPECIFIC PART (to edit) %%%%%%%%%%%% |
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137 | %filter for particle center of mass(luminosity) |
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138 | %Nblock=Param.ActionInput.Nblock; |
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139 | %ThreshLum=Param.ActionInput.ThreshLum;% luminosity threshold for particle detection, < 0 for black particles, >0 for white particles |
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140 | AbsThreshold=30; %threshold below which a pixel is considered belonging to a float |
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141 | % |
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142 | hh=ones(5,5); |
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143 | hh(1,1)=0; |
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144 | hh(1,5)=0;% sum luminosity on the 5x5 domain without corners |
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145 | hh(5,1)=0; |
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146 | hh(5,5)=0; |
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147 | hdx=[-2:1:2]; |
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148 | hdy=[-2:1:2]; |
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149 | [hdX,hdY]=meshgrid(hdx,hdy); |
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150 | hdX(1,1)=0; |
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151 | hdX(1,5)=0;% sum luminosity on the 5x5 domain -corners |
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152 | hdX(5,1)=0; |
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153 | hdX(5,5)=0; |
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154 | hdY(1,1)=0; |
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155 | hdY(1,5)=0;% sum luminosity on the 5x5 domain -corners |
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156 | hdY(5,1)=0; |
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157 | hdY(5,5)=0; |
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158 | |
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159 | %% mask to reduce the working area (optional) |
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160 | CheckMask=0; |
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161 | if isfield(Param,'CheckMask') && isequal(Param.CheckMask,1) |
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162 | [maskname,TestMask]=name_generator([filebase '_1mask'],1,1,'.png','_i'); |
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163 | MaskIma=imread(maskname); |
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164 | Mask=MaskIma>=200;%=1 for good points, 0 for bad |
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165 | CheckMask=1; |
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166 | end |
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167 | |
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168 | %%%%%% MAIN LOOP ON FRAMES %%%%%% |
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169 | for ifile=1:nbfield |
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170 | if checkrun |
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171 | if strcmp(get(Param.RUNHandle,'BusyAction'),'queue') |
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172 | update_waitbar(Param.WaitbarHandle,ifile/nbfield) |
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173 | else |
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174 | break% leave the loop if the STOP button is activated on the GUI series |
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175 | end |
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176 | end |
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177 | if ~isempty(j1_series)&&~isequal(j1_series,{[]}) |
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178 | j1=j1_series{1}(ifile); |
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179 | end |
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180 | filename=fullfile_uvmat(RootPath,SubDir,RootFile,FileExt,NomType,i1_series{1}(ifile),[],j1); |
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181 | A=read_image(filename,FileType,VideoObject,frame_index(ifile));% read the current frame |
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182 | if ndims(A)==3;%color images |
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183 | A=sum(double(A),3);% take the sum of color components |
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184 | end |
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185 | if ThreshLum<0 |
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186 | A=max(max(A))-A;%take the negative |
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187 | end |
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188 | if CheckMask |
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189 | A=A.*Mask; |
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190 | end |
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191 | if isempty(Nblock) |
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192 | A=A-min(min(A));%substract absolute mean |
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193 | else |
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194 | Aflagmin=sparse(imregionalmin(A));%Amin=1 for local image minima |
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195 | Amin=A.*Aflagmin;%values of A at local minima |
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196 | % local background: find all the local minima in image subblocks |
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197 | sumblock= inline('sum(sum(x(:)))'); |
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198 | Backgi=blkproc(Amin,[Nblock Nblock],sumblock);% take the sum in blocks |
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199 | Bmin=blkproc(Aflagmin,[Nblock Nblock],sumblock);% find the number of minima in blocks |
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200 | Backgi=Backgi./Bmin; % find the average of minima in blocks |
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201 | % Backg=Backg+Backgi; |
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202 | Backg=Backgi; |
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203 | A=A-imresize(Backg/nburst(1),size(A),'bilinear');% interpolate to the initial size image and substract |
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204 | end |
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205 | Aflagmax=sparse(imregionalmax(A));%find local maxima |
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206 | Plum=imfilter(A,hh);% sum A on 5x% domains |
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207 | Plum=Aflagmax.*Plum;% Plum gives the particle luminosity at each particle location, 0 elsewhere |
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208 | %make statistics on particles,restricted to a subdomain Sub |
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209 | [Js,Is,lum]=find(Plum);%particle luminosity |
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210 | Plum=(Plum>ThreshLum).*Plum;% introduce a threshold for particle luminosity |
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211 | Aflagmax=Aflagmax.*(Plum>ThreshLum); |
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212 | [Js,Is,lum]=find(Plum);%particle luminosity |
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213 | nbtotal=size(Is) |
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214 | nbtotal=nbtotal(1); |
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215 | %particle size |
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216 | Parea=Aflagmax.*(Plum./A); %particle luminosity/max luminosity=area |
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217 | Pdiam=sqrt(Parea); |
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218 | [Js,Is,diam]=find(Pdiam);%particle location |
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219 | |
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220 | %%%%%%%%%%%%%%%%%%%%% |
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221 | |
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222 | %nbre of particles per block |
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223 | % nbpart=blkproc(Aflagmax,[Nblock Nblock],sumblock);% |
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224 | % npb=size(nbpart); |
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225 | % rangxb=[0.5 (npb(2)-0.5)]*Nblock; % pixel x coordinates for image display |
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226 | % rangyb=[(npb(1)-0.5) 0.5]*Nblock; % pixel y coordinates for image display |
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227 | % image(rangxb,rangyb,nbpart); |
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228 | |
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229 | % get the particle centre of mass |
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230 | dx=imfilter(A,hdX); |
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231 | dy=imfilter(A,-hdY); |
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232 | dx=Aflagmax.*(dx./Plum); |
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233 | dy=Aflagmax.*(dy./Plum); |
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234 | dx=dx/pxcm; |
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235 | dy=dy/pycm; |
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236 | I=([1:npxy(2)]-0.5)/pxcm; %x pos |
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237 | J=([npxy(1):-1:1]-0.5)/pycm; %y pos |
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238 | [Ipos,Jpos]=meshgrid(I,J); |
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239 | Ipos=reshape(Ipos,1,npxy(2)*npxy(1)); |
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240 | Jpos=reshape(Jpos,1,npxy(2)*npxy(1)); |
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241 | dx=reshape(dx,1,npxy(2)*npxy(1)); |
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242 | dy=reshape(dy,1,npxy(2)*npxy(1)); |
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243 | Aflag=reshape(Aflagmax,1,npxy(2)*npxy(1)); |
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244 | ind=find(Aflag);% select particle positions |
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245 | XPart{ifile}=Ipos(ind)+dx(ind); |
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246 | YPart{ifile}=Jpos(ind)+dy(ind); |
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247 | end |
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248 | hold off |
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249 | |
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250 | size(XPart{1}) |
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251 | |
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252 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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253 | %Trajectoires |
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254 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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255 | for ifile=1:nbfield |
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256 | |
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257 | [XPart{ifile},YPart{ifile}]=phys_XYZ(Calib,XPart{ifile},YPart{ifile}); |
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258 | |
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259 | end |
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260 | |
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261 | if nbfield>2 |
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262 | figpart=figure |
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263 | hold on |
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264 | plot(XPart{1}(:),YPart{1}(:),'r+') |
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265 | plot(XPart{2}(:),YPart{2}(:),'b+') |
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266 | plot(XPart{3}(:),YPart{3}(:),'y+') |
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267 | legend('particules image 1','particules image 2','particules image 3'); |
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268 | xlabel('x (cm)'); |
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269 | ylabel('y (cm)'); |
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270 | title('Position des particules') |
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271 | else |
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272 | figpart=figure |
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273 | hold on |
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274 | plot(XPart{1}(:),YPart{1}(:),'r+') |
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275 | plot(XPart{2}(:),YPart{2}(:),'b+') |
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276 | legend('particules image 1','particules image 2'); |
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277 | xlabel('x (cm)'); |
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278 | ylabel('y (cm)'); |
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279 | title('Position des particules') |
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280 | end |
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281 | |
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282 | % prompt={'Ymin (cm)','Ymax( cm)','Xmin (cm)','Xmax (cm)'}; |
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283 | % Rep=inputdlg(prompt,'Experiment'); |
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284 | % Ymin=str2double(Rep(1)); |
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285 | % Ymax=str2double(Rep(2)); |
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286 | % Xmin=str2double(Rep(3)); |
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287 | % Xmax=str2double(Rep(4)); |
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288 | |
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289 | Ymin=6; |
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290 | Ymax=14; |
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291 | Xmin=15; |
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292 | Xmax=35; |
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293 | |
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294 | plot(Xmin,Ymin,'g+') |
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295 | plot(Xmin,Ymax,'g+') |
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296 | plot(Xmax,Ymin,'g+') |
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297 | plot(Xmax,Ymax,'g+') |
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298 | |
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299 | |
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300 | for ima=2:nbfield |
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301 | t{1}=0*ones(size(XPart{1},2),1); |
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302 | burst(1)=0; |
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303 | burst(2)=0.018; |
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304 | burst(3)=0.036; |
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305 | % nburst=strcat('burst',num2str(ima-1),'-',num2str(ima),' (s)'); |
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306 | % prompt={'burst (s)'}; |
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307 | % Rep=inputdlg(prompt,nburst); |
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308 | % burst(ima)=str2double(Rep(1)); |
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309 | t{ima}=(burst(ima)+burst(ima-1))*ones(size(XPart{ima},2),1); |
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310 | end |
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311 | |
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312 | |
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313 | |
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314 | for ima=1:nbfield |
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315 | |
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316 | IndY{ima}=find(YPart{ima}>Ymin & YPart{ima}<Ymax & XPart{ima}>Xmin & XPart{ima}<Xmax); |
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317 | XPart{ima}=XPart{ima}(IndY{ima}); |
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318 | YPart{ima}=YPart{ima}(IndY{ima}); |
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319 | |
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320 | |
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321 | end |
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322 | |
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323 | |
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324 | |
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325 | %%%%%%%%%%%%%%%%%%%%%%% |
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326 | % Calcul de v1 |
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327 | %%%%%%%%%%%%%%%%%%%%%%% |
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328 | |
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329 | for i=1:size(XPart{1},2) |
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330 | MatPos{1}(i,1)=XPart{1}(i); |
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331 | MatPos{1}(i,2)=YPart{1}(i); |
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332 | MatPos{1}(i,3)=t{1}(i); |
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333 | %MatPos{1}(i,4)=i; |
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334 | end |
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335 | |
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336 | for j=1:size(XPart{2},2)-1 |
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337 | MatPos{1}(j+size(XPart{1},2),1)=XPart{2}(j); |
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338 | MatPos{1}(j+size(XPart{1},2),2)=YPart{2}(j); |
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339 | MatPos{1}(j+size(XPart{1},2),3)=t{2}(j); |
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340 | %MatPos{1}(j,4)=j+size(XPart{1},2); |
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341 | end |
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342 | |
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343 | % Dmax=inputdlg('Entrer la distance maximum (0.25 cm)','dmax (cm)',1) |
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344 | % dmax=str2num(Dmax{1}); |
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345 | dmax=0.23; |
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346 | |
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347 | result{1}=track(MatPos{1},dmax); |
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348 | |
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349 | izero=1; |
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350 | for itest=1:1:size(result{1},1)-1 |
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351 | if result{1}(itest+1,4)==result{1}(itest,4) |
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352 | vitu{1}(izero,1)=(result{1}(itest+1,1)-result{1}(itest,1))/burst(2); |
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353 | vitu{1}(izero,2)=result{1}(itest,4); |
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354 | vitv{1}(izero,1)=(result{1}(itest+1,2)-result{1}(itest,2))/burst(2); |
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355 | vitv{1}(izero,2)=result{1}(itest,4); |
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356 | MatPos{2}(izero,1)=result{1}(itest,1); |
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357 | MatPos{2}(izero,2)=result{1}(itest,2); |
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358 | izero=izero+1; |
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359 | end |
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360 | end |
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361 | |
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362 | |
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363 | vitfu{1}=vitu{1}; |
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364 | vitfv{1}=vitv{1}; |
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365 | |
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366 | |
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367 | %%%%%%%%%%%%%%%%%%%%%%% |
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368 | % Calcul de vi |
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369 | %%%%%%%%%%%%%%%%%%%%%%% |
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370 | |
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371 | |
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372 | if nbfield>2 |
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373 | for ima=2:nbfield-1 |
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374 | |
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375 | for i=1:size(MatPos{ima},1) |
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376 | MatPos{ima+1}(i,1)=MatPos{ima}(i,1)+(burst(ima+1)*vitfu{ima-1}(i)); |
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377 | MatPos{ima+1}(i,2)=MatPos{ima}(i,2)+(burst(ima+1)*vitfv{ima-1}(i)); |
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378 | MatPos{ima+1}(i,3)=t{ima}(i); |
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379 | end |
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380 | |
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381 | for j=1:size(XPart{ima+1},2)-1 |
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382 | MatPos{ima+1}(j+size(MatPos{ima},1),1)=XPart{ima+1}(j); |
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383 | MatPos{ima+1}(j+size(MatPos{ima},1),2)=YPart{ima+1}(j); |
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384 | MatPos{ima+1}(j+size(MatPos{ima},1),3)=t{ima+1}(j); |
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385 | end |
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386 | |
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387 | |
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388 | result{ima}=track(MatPos{ima+1},0.15); |
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389 | |
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390 | izero=1; |
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391 | for itest=1:1:size(result{ima},1)-1 |
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392 | if result{ima}(itest+1,4)==result{ima}(itest,4) |
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393 | vitu{ima}(izero,1)=(result{ima}(itest+1,1)-result{ima}(itest,1))/burst(ima+1); |
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394 | vitu{ima}(izero,2)=result{ima}(itest,4); |
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395 | vitv{ima}(izero,1)=(result{ima}(itest+1,2)-result{ima}(itest,2))/burst(ima+1); |
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396 | vitv{ima}(izero,2)=result{ima}(itest,4); |
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397 | MatPos{ima+2}(izero,1)=result{ima}(itest,1); |
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398 | MatPos{ima+2}(izero,2)=result{ima}(itest,2); |
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399 | izero=izero+1; |
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400 | end |
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401 | end |
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402 | |
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403 | i=vitu{ima}(1,2):1:vitu{ima}(end,2) |
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404 | |
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405 | vitfu{ima}(:,1)=vitfu{ima-1}(i,1)+vitu{ima}(:,1); |
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406 | vitfv{ima}(:,1)=vitfv{ima-1}(i,1)+vitv{ima}(:,1); |
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407 | vitfu{ima}(:,2)=vitu{ima}(:,2); |
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408 | vitfv{ima}(:,2)=vitv{ima}(:,2); |
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409 | |
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410 | vitfu{ima-1}=vitfu{ima-1}(i,1); |
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411 | vitfu{ima-1}(:,2)=i; |
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412 | vitfv{ima-1}=vitfv{ima-1}(i,1); |
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413 | vitfv{ima-1}(:,2)=i; |
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414 | i=1:1:size(vitfu{ima-1},1) |
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415 | xpos=MatPos{2}(i,1) |
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416 | ypos=MatPos{2}(i,2) |
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417 | end |
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418 | end |
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419 | |
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420 | |
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421 | |
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422 | figure |
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423 | hold on |
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424 | plot(MatPos{1}(:,1),MatPos{1}(:,2),'r+') |
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425 | plot(MatPos{2}(:,1),MatPos{2}(:,2),'b+') |
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426 | plot(MatPos{4}(:,1),MatPos{4}(:,2),'y+') |
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427 | quiver(xpos(:),ypos(:),vitfu{1}(:,1),vitfv{1}(:,1),'g') |
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428 | quiver(MatPos{4}(:,1),MatPos{4}(:,2),vitfu{2}(:,1),vitfv{2}(:,1),'k') |
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429 | legend('particules image 1','particules image 2', 'particules image 3','vitesse 1-2 (cm/s)','vitesse 2-3 (cm/s)'); |
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430 | xlabel('x (cm)'); |
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431 | ylabel('y (cm)'); |
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432 | title('Position et vitesse (cm/s) des particules') |
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433 | |
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434 | |
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435 | for i=1:size(vitfu{end},1) |
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436 | vitfuadd(i)=0; |
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437 | vitfvadd(i)=0; |
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438 | end |
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439 | |
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440 | |
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441 | |
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442 | for i=1:1:size(vitfu{end}(:,1)) |
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443 | |
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444 | for j=1:nbfield-1 |
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445 | vitfuadd(i)= vitfuadd(i)+vitfu{j}(i,1); |
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446 | vitfvadd(i)= vitfvadd(i)+vitfv{j}(i,1); |
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447 | xpos1(i)=MatPos{1}(i,1); |
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448 | ypos1(i)=MatPos{1}(i,2); |
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449 | xpos2(i)=MatPos{2}(i,1); |
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450 | ypos2(i)=MatPos{2}(i,2); |
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451 | |
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452 | end |
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453 | end |
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454 | sizexpos1=size(xpos1) |
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455 | |
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456 | vitfumoy=vitfuadd./(nbfield-1) |
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457 | vitfvmoy=vitfvadd./(nbfield-1) |
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458 | |
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459 | testresult1=result{1} |
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460 | testresult2=result{2} |
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461 | |
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462 | if nbfield>2 |
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463 | figure |
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464 | hold on |
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465 | plot(MatPos{1}(:,1),MatPos{1}(:,2),'r+') |
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466 | plot(MatPos{2}(:,1),MatPos{2}(:,2),'b+') |
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467 | quiver(xpos2(:),ypos2(:),vitfumoy(:),vitfvmoy(:),'g') |
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468 | legend('particules image 1','particules image 2', 'vitesse moyenne (cm/s)'); |
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469 | xlabel('x (cm)'); |
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470 | ylabel('y (cm)'); |
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471 | title('Position et vitesse (cm/s) des particules') |
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472 | |
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473 | else |
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474 | |
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475 | figure |
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476 | hold on |
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477 | plot(MatPos{1}(:,1),MatPos{1}(:,2),'r+') |
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478 | plot(MatPos{2}(:,1),MatPos{2}(:,2),'b+') |
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479 | quiver(MatPos{2}(:,1),MatPos{2}(:,2),vitfu{1}(:),vitfv{1}(:),'g') |
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480 | legend('particules image 1','particules image 2','vitesse 1-2 (cm/s)'); |
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481 | xlabel('x (cm)'); |
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482 | ylabel('y (cm)'); |
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483 | title('Position et vitesse (cm/s) des particules') |
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484 | |
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485 | vitfumoy=vitfu{1}; |
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486 | vitfvmoy=vitfv{1}; |
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487 | |
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488 | end |
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489 | |
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490 | VitData.NbDim=2; |
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491 | VitData.NbCoord=2; |
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492 | VitData.CoordType='phys'; |
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493 | VitData.dt=0.0185; |
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494 | VitData.CoordUnit='cm'; |
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495 | VitData.Z=0; |
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496 | VitData.ListDimName={'nb_vectors'}; |
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497 | VitData.DimValue=size(vitfumoy,2); |
---|
498 | VitData.ListVarName={'X' 'Y' 'U' 'V' 'F'}; |
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499 | VitData.VarDimIndex={[1] [1] [1] [1] [1]}; |
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500 | VitData.ListVarAttribute={'Role'}; |
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501 | VitData.Role={'coord_x' 'coord_y' 'vector_x' 'vector_y' 'warnflag'}; |
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502 | |
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503 | if nbfield>2 |
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504 | VitData.X=size(MatPos{4},1); |
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505 | VitData.Y=size(MatPos{4},2); |
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506 | else |
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507 | VitData.X=size(MatPos{2},1); |
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508 | VitData.Y=size(MatPos{2},2); |
---|
509 | end |
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510 | |
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511 | VitData.U=size(vitfumoy,2); |
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512 | VitData.V=size(vitfvmoy,2); |
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513 | VitData.Style='plane'; |
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514 | VitData.Time=[198.5203 198.5203]; |
---|
515 | VitData.Action=Series.Action; |
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516 | |
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517 | if nbfield>2 |
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518 | VitData.X=MatPos{4}(:,1)'; |
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519 | VitData.Y=MatPos{4}(:,2)'; |
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520 | else |
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521 | VitData.X=MatPos{2}(:,1)'; |
---|
522 | VitData.Y=MatPos{2}(:,2)'; |
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523 | end |
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524 | |
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525 | VitData.U=vitfumoy(:)'; |
---|
526 | VitData.V=vitfvmoy(:)'; |
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527 | |
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528 | if length(VitData.ListVarName) >= 4 & isequal(VitData.ListVarName(1:4), {'X' 'Y' 'U' 'V'}) |
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529 | VitData.ListAttribute={'nb_coord','nb_dim','dt','pixcmx','pixcmy','hart','civ','fix'}; |
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530 | VitData.nb_coord=2; |
---|
531 | VitData.nb_dim=2; |
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532 | VitData.dt=0.018; |
---|
533 | VitData.absolut_time_T0=0; |
---|
534 | VitData.pixcmx=1; %pix per cm (1 by default) |
---|
535 | VitData.pixcmy=1; %pix per cm (1 by default) |
---|
536 | VitData.hart=0; |
---|
537 | if isequal(VitData.CoordType,'px') |
---|
538 | VitData.civ=1; |
---|
539 | else |
---|
540 | VitData.civ=0; |
---|
541 | end |
---|
542 | VitData.fix=0; |
---|
543 | VitData.ListVarName(1:4)={'vec_X' 'vec_Y' 'vec_U' 'vec_V'}; |
---|
544 | VitData.vec_X=VitData.X; |
---|
545 | VitData.vec_Y=VitData.Y; |
---|
546 | VitData.vec_U=VitData.U; |
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547 | VitData.vec_V=VitData.V; |
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548 | end |
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549 | currentdir=pwd;%store the current working directory |
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550 | [Path_ima,Name]=fileparts(filebase);%Path of the image files (.civ) |
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551 | cd(Path_ima);%move to the directory of the images: needed to create the result dir by 'mkdir' |
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552 | dircur=pwd; %current working directory |
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553 | [m1,m2,m3]=mkdir('TRACK_test') |
---|
554 | cd(currentdir) |
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555 | [filename_nc,idetect]=name_generator(filebase,num_i1(1),num_j1(1),'.nc','_i_j1-j2',1,num_i1(1),num_j1(2),'TRACK_test') |
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556 | error=struct2nc(filename_nc,VitData); %save result file |
---|
557 | if isequal(error,0) |
---|
558 | [filename_nc ' written'] |
---|
559 | else |
---|
560 | warndlg_uvmat(error,'ERROR') |
---|
561 | end |
---|
562 | |
---|