| [614cf546] | 1 | <html> |
|---|
| 2 | <body> |
|---|
| 3 | |
|---|
| 4 | <h4>Data Averaging</h4> |
|---|
| 5 | <ul> |
|---|
| 6 | <li><a href="#Description">Description</a></li> |
|---|
| 7 | <li><a href="#How to use">How to Average? </a></li> |
|---|
| 8 | <p> Below follow the list of available averages: </p> |
|---|
| 9 | <li><a href="#Sector"> Sector [Q view]</a></li> |
|---|
| 10 | <li><a href="#Annulus"> Annulus [Phi view]</a></li> |
|---|
| 11 | <li><a href="#Box sum"> Box sum</a></li> |
|---|
| 12 | <li><a href="#Box averaging in Qx"> Box averaging in Qx</a></li> |
|---|
| 13 | <li><a href="#Box averaging in Qy"> Box averaging in Qy</a></li> |
|---|
| 14 | <li><a href="#Circular Average">Perform Circular Average</a></li> |
|---|
| 15 | </ul> |
|---|
| 16 | <h5><a name="Description">Description</a></h5> |
|---|
| 17 | <p> |
|---|
| 18 | This feature allows you to perform different types of averages on your data, |
|---|
| 19 | and allows you to see what regions of the detector will contribute to |
|---|
| 20 | the average. |
|---|
| 21 | The regions to be averaged are clearly shown on the data, and can be easily adjusted. |
|---|
| 22 | This feature is available only for 2D Data. |
|---|
| 23 | </p> |
|---|
| 24 | |
|---|
| 25 | |
|---|
| 26 | <h5><a name="How to use">How to Average?</a></h5> |
|---|
| 27 | <p> |
|---|
| 28 | Right click on 2D data for the context menu to appear. Select one type of averages |
|---|
| 29 | among <b>"sector [Q view]", "Annulus [Phi view]", "Box sum", "Box averaging in Qx ", |
|---|
| 30 | "box averaging on Qy","Perform circular Average".</b> |
|---|
| 31 | </p> |
|---|
| 32 | <p> |
|---|
| 33 | A slicer will appear except for <b> "Perform circular Average"</b> |
|---|
| 34 | that you can drag by clicking on a slicer 's marker |
|---|
| 35 | .When the marker is highlighted in red , it means that the slicer can change size.You can |
|---|
| 36 | also move some of the slicer by simply drag its side when highlighted in red. |
|---|
| 37 | the slicer size will be reset to its previous size if the user try to select a region greater |
|---|
| 38 | than the size of the data. |
|---|
| 39 | |
|---|
| 40 | </p> |
|---|
| 41 | <p>The user can also select a region to average when a slicer has been selected already by <b>right |
|---|
| 42 | clicking </b> on the context menu and selecting <b>Edit Slicer Parameters</b>. The dialog window |
|---|
| 43 | will appears and the user can enter values to selected a region or selected numbers of points to |
|---|
| 44 | plot <b>nbins</b>. |
|---|
| 45 | </p> |
|---|
| 46 | |
|---|
| 47 | <p> |
|---|
| 48 | For <b>Box sum</b> , when the user selects this option, a new panel is created containing |
|---|
| 49 | the result of average of the sum of every pixels contains on that data.The user can also enter |
|---|
| 50 | values to select a region. |
|---|
| 51 | </p> |
|---|
| 52 | |
|---|
| 53 | |
|---|
| 54 | <h5><a name="Sector">Sector [Q view]</a></h5> |
|---|
| 55 | <p> |
|---|
| 56 | It averages in constant q-arcs. The width of the sector |
|---|
| 57 | is specified in degrees (+/- delta phi) each direction from the central angle (phi) |
|---|
| 58 | </p> |
|---|
| 59 | |
|---|
| 60 | <h5><a name="Annulus"> Annulus [Phi view]</a></h5> |
|---|
| 61 | <p> |
|---|
| 62 | It performs an average between two q-values centered in (0,0), |
|---|
| 63 | and averaged over a width of a specified number of pixels. |
|---|
| 64 | The data is returned as a function of angle (phi) in degrees.Moving one circle of this slicer |
|---|
| 65 | to radius of zero corresponding to a circular averaging on radius qmax , the outer circle. |
|---|
| 66 | </p> |
|---|
| 67 | |
|---|
| 68 | <h5><a name="Box sum"> Box sum</a></h5> |
|---|
| 69 | <p> |
|---|
| 70 | Perform the sum of counts in a 2D region of interest.When editing the slicer ,the user can |
|---|
| 71 | enter the length and the width the rectangle slicer and the coordinates of the center of this |
|---|
| 72 | rectangle. |
|---|
| 73 | </p> |
|---|
| 74 | <h5><a name="Box averaging in Qx"> Box averaging in Qx</a></h5> |
|---|
| 75 | <p> |
|---|
| 76 | Computes average I(Qx) for a region of interest.When editing the slicer ,the user can |
|---|
| 77 | enter the length and the width the rectangle slicer. |
|---|
| 78 | </p> |
|---|
| 79 | <h5><a name="Box averaging in Qy"> Box averaging in Qy</a></h5> |
|---|
| 80 | <p> |
|---|
| 81 | Computes average I(Qy) for a region of interest.When editing the slicer ,the user can |
|---|
| 82 | enter the length and the width the rectangle slicer. |
|---|
| 83 | </p> |
|---|
| 84 | |
|---|
| 85 | |
|---|
| 86 | <h5><a name="Circular Average">Perform Circular Average</a></h5> |
|---|
| 87 | <p> |
|---|
| 88 | It will perform and average in constant q-rings around the (x,y) |
|---|
| 89 | pixel location of the beam center |
|---|
| 90 | </p> |
|---|
| 91 | </body> |
|---|
| 92 | </html> |
|---|
| 93 | |
|---|
