Changes between Version 171 and Version 172 of UvmatHelp

Timestamp:

Jan 23, 2015, 10:02:24 AM (10 years ago)

Author:

vaillant1p

Comment:

--

UvmatHelp

@@ -646 +646 @@
  * <!NbSlice_j>: nbre of slices for the second index j (volume scan), =1 by default.
 
- * <!SliceCoord>: [x y z] positions (nb lines) of the nb planes, where nb=[wiki:NbSlice !NbSlice]_i (multilevel case) or nb=[wiki:NbSlice !NbSlice]_j of j indices (volume scan), for parallel volume scan, x=y=0, z= slice height, for angular scan, [x,y,z]=[origin].
+ * <!SliceCoord>: [x y z] positions (nb lines) of the nb planes, where nb=!NbSlice_i (multilevel case) or nb=!NbSlice_j of j indices (volume scan), for parallel volume scan, x=y=0, z= slice height, for angular scan, [x,y,z]=[origin].
 
  * <SliceDZ>:   step distance between planes.
@@ -663 +663 @@
 
 === 9.2 Grids ===
-Grid files, see [#MaskGrids section 3.6], are used to impose a set of positions for PIV vectors. To create a grid for PIV, activate the menu bar Tools/Make grid on the GUI '''uvmat'''. Introduce a minimum value, mesh, and maximum value for coordinate ''x'' in the edit boxes '''[XMin], [DX], [XMax]''' respectively. Do the same for the ''y'' coordinate.  This must be expressed in physical coordinates.
+Grid files, see [#MaskGrids section 3.6], are used to impose a set of positions for PIV vectors. To create a grid for PIV, activate the menu bar !Tools/Make grid on the GUI '''uvmat'''. Introduce a minimum value, mesh, and maximum value for coordinate ''x'' in the edit boxes '''[XMin], [DX], [XMax]''' respectively. Do the same for the ''y'' coordinate.  This must be expressed in physical coordinates.
 
 The grid will be limited to an  image , or to the common region of two images, depending whether one or two image names are indicated in the edit boxes image_1 and image_2. Press save to save the corresponding grid file (s). A dialog box appears to edit the name of the output grid file, and a second one in case of two images.
@@ -824 +824 @@
 The FIX operation is used after civ to mark false vectors, using different criteria: 
 
-''' - warning flags: ''' these are flags (vec_F) indicating problems with the image correlation process. 
+''' Warning flags: ''' these are flags (vec_F) indicating problems with the image correlation process. 
  * vec_F=-2: select to eliminate vectors for which the maximum of the correlation function is close to the border of the search box (at a distance of two pixels or less), so that its maximum cannot be reliably obtained.
  * vec_F=3: the optimisation of the correlation function is unstable  or  local Intensity rms of the image =0. Must be selected. 
  
-''' - Threshold on the image correlation:  ''' (vec_C) can be introduced by the edit box '''[num_!MinCorr]''' (value between 0 and 1). It removes vectors with poor correlation.  
-
-''' - Threshold on the velocity modulus: ''' (expressed in pixels). It can remove either excessive values (threshold set by '''[num_MaxVel]''') or too small values (threshold set by '''[num_MinVel]'''). Erratic zero velocity vectors, produced by a fixed image background, can be eliminated by the latter criterium. 
-
-''' - Manual fix: ''' Interactive fixing with the mouse is also possible, see [section 4.2->#4.2].
+''' Threshold on the image correlation:  ''' (vec_C) can be introduced by the edit box '''[num_!MinCorr]''' (value between 0 and 1). It removes vectors with poor correlation.  
+
+''' Threshold on the velocity modulus: ''' (expressed in pixels). It can remove either excessive values (threshold set by '''[num_MaxVel]''') or too small values (threshold set by '''[num_MinVel]'''). Erratic zero velocity vectors, produced by a fixed image background, can be eliminated by the latter criterium. 
+
+''' Manual fix: ''' Interactive fixing with the mouse is also possible, see [#a4.2Contourplots section 4.2].
 
 
@@ -861 +861 @@
 Perform usual PIV for each image series.
 
-For PIV near a staigth wall, it is advised to create a grid for each image series, corresponding to a common array of physical positions. This can be done by the upper menu bar option '''!Tools/Make Grid''' in the GUI '''uvmat'''( see section [#a9.2Grids]).
+For PIV near a staigth wall, it is advised to create a grid for each image series, corresponding to a common array of physical positions. This can be done by the upper menu bar option '''!Tools/Make Grid''' in the GUI '''uvmat'''( see section [#a9.2Grids Grids]).
 
 Combine PIV fields: TO UPDATE**.