Changes between Version 173 and Version 174 of UvmatHelp


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Timestamp:
Jan 23, 2015, 10:11:23 AM (6 years ago)
Author:
vaillant1p
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  • UvmatHelp

    v173 v174  
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    294293=== 4.6 Field transforms ===
    295294A transform can be systematically applied after reading the input field, for instance the transform 'phys' which takes into account geometric calibration. This transform can possibly combine two input fields, for instance to substract a background from an image. The processing function is chosen  by the popup menu '''[transform_fct]''' on the left, and its path is displayed in the box '''[path_transform]'''. Select the option 'more...' to browse new functions. The same functions can be called in data processsing using the GUI '''series.fig'''. A few functions are provided in the folder /transform_fct, see the list in  [#overview the function overview].
     
    318317-'''Plotting:''' plot the results of projection, using the function ''plot_field.m''.
    319318
    320 ----
     319
    321320== 5 - Field structures ==
    322321=== 5.1 Griding of data ===
     
    354353 * (optional) '''!ListGlobalAttribute''' list (cell array of character strings) of the names of global attributes  Att_1, Att_2...
    355354 * (mandatory) '''!ListVarName''' list of the variable names Var_1, Var_2....(cell array of character strings).
    356  * (mandatory) '''!VarDimName''' list of the dimensions associated with each variable: this is a cell array whose number of element is equal to that of '''ListVarName'''. Each element is the dimension name for a unidimensional variable, or a cell array specifying the list of dimension names for a multidimensional variable.
     355 * (mandatory) '''!VarDimName''' list of the dimensions associated with each variable: this is a cell array whose number of element is equal to that of '''!ListVarName'''. Each element is the dimension name for a unidimensional variable, or a cell array specifying the list of dimension names for a multidimensional variable.
    357356 * (optional) '''!VarAttribute''' cell array of structures of the form !VarAttribute{ivar}.key=value, defining an attribute tag name and value for the variable #ivar (variable number in the list !ListVarName]).
    358357 * .Att_1, Att_2...  values of the listed global attributes.
     
    817816[[Image(Correlation for PIV.png)]]
    818817
    819 The grid determines the positions of measured velocity vectors: it sets the central positions of the correlation boxes (in pixels) for the first image. A default regular grid can be set by the meshes '''[num_Dx] ''' and '''[num_Dy]''' (in pixels). Alternatively a custom [grid->#MaskGrid] can be stored in a text file and selected by the check box '''[GET_GRID]'''. This is convenient to limitate the processing to a subregion or to fine tune the resolution.
     818The grid determines the positions of measured velocity vectors: it sets the central positions of the correlation boxes (in pixels) for the first image. A default regular grid can be set by the meshes '''[num_Dx] ''' and '''[num_Dy]''' (in pixels). Alternatively a custom [#MaskGrid grid] can be stored in a text file and selected by the check box '''[GET_GRID]'''. This is convenient to limitate the processing to a subregion or to fine tune the resolution.
    820819
    821820A subregion can be alternatively selected by a mask image, selecting the edit box '''[Mask]'''. If a mask image with an appropriate name is found in the image directory, it wil be detected, and the indication 'xxmask' appears in the edit box. (xx is the number of slices, equal to 1 for a single mask). Otherwise a browser appears to select a (single) mask file.