[P113] Update documentation

docs/source/Plugin/P113.rst

@@ -90,7 +90,19 @@ To divert the Optical Center of the selected, rectangle, group of SPADs from the
 
 * **ROI 'y' SPADs**: Select the number of SPADs in ``y`` direction. Default and max. value is 16, lowest value is 4.
 
-* **Optical Center index for ROI**: Select the Optical Center index for the ROI area configured. See the **Optical Center index matrix** section below for the available index values
+* **Optical Center index for ROI**: Select the Optical Center index for the ROI area configured. The current Optical Center position is marked in the table by changing the font to Italic and Underscored.
+
+The Region of Interest area can be selected by click&select in the table, shown. The minimum selected area has to cover 4x4 SPADs, else the previous selection will be restored. When selecting an area this way, the values for **ROI x**, **ROI y** and **Optical Center** are updated automatically.
+
+If a ROI of less than 11x11 SPADs is selected, the Optical Center can be changed from the default value 199 (device center). The Optical Center can also be changed via double-click on the desired cell, or by alt-clicking (press the Alt key on the keyboard and click the mouse-button).
+
+When any of the values is changed manually, the selected area in the table will be adjusted to match the current settings.
+
+If a value is selected that's invalid, like when the optical center is too close to the borders of the table, the value(s) will be adjusted as needed, specified in the datasheet of the sensor.
+
+* **Use click-lock**: For touch-only devices, like tablets and mobile phones, where no mouse is available, this checkbox can be enabled to start the selection by the first click on a table-cell, and completing the selection by clicking another cell. The same validations are applied, like minimum 4x4 SPAD selection, and resetting the Optical Center to 199 when either the **ROI x** or **ROI y** values exceed 10 SPADs. The selection-rectangle shown when using click&select ROI selection is not shown for touch-only devices, due to technical limitations. The state of this checkbox is *not* saved.
+
+.. note:: To not overly complicate/expand the used javascript code, ROI selection works from left-top to right-bottom, and not in other directions.
 
 Data Acquisition
 ^^^^^^^^^^^^^^^^
@@ -143,42 +155,6 @@ The light-colored cone in the center of the pink cone is a projection of the the
 
 |
 
-Optical Center index matrix
----------------------------
-
-The **Optical Center index for ROI** can be selected from this table, where the index selected will be used as the center-point for the specified square of SPADs. When either of the x or y values are \> 10, the default index of 199 will be used.
-
-.. csv-table::
-    :header: "Row/Col", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15", "16", "Remark"
-    :widths: 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 14
-
-	"A", "128","136","144","152","160","168","176","184",  "192","200","208","216","224","232","240","248",""
-	"B", "129","137","145","153","161","169","177","185",  "193","201","209","217","225","233","241","249",""
-	"C", "130","138","146","154","162","170","178","186",  "194","202","210","218","226","234","242","250",""
-	"D", "131","139","147","155","163","171","179","187",  "195","203","211","219","227","235","243","251",""
-	"E", "132","140","148","156","164","172","180","188",  "196","204","212","220","228","236","244","252",""
-	"F", "133","141","149","157","165","173","181","189",  "197","205","213","221","229","237","245","253",""
-	"G", "134","142","150","158","166","174","182","190",  "198","206","214","222","230","238","246","254",""
-	"H", "135","143","151","159","167","175","183","191",  "**199**","207","215","223","231","239","247","255",""
-	
-	"I", "127","119","111","103", "95", "87", "79", "71",   "63", "55", "47", "39", "31", "23", "15", "7", ""
-	"J", "126","118","110","102", "94", "86", "78", "70",   "62", "54", "46", "38", "30", "22", "14", "6", ""
-	"K", "125","117","109","101", "93", "85", "77", "69",   "61", "53", "45", "37", "29", "21", "13", "5", ""
-	"L", "124","116","108","100", "92", "84", "76", "68",   "60", "52", "44", "36", "28", "20", "12", "4", ""
-	"M", "123","115","107", "99", "91", "83", "75", "67",   "59", "51", "43", "35", "27", "19", "11", "3", ""
-	"N", "122","114","106", "98", "90", "82", "74", "66",   "58", "50", "42", "34", "26", "18", "10", "2", ""
-	"O", "121","113","105", "97", "89", "81", "73", "65",   "57", "49", "41", "33", "25", "17",  "9", "1", ""
-	"P", "120","112","104", "96", "88", "80", "72", "64",   "56", "48", "40", "32", "24", "16",  "8", "0", "Pin 1 of chip"
-
-
-An example of a reduced ROI, with a displaced Optical Center is shown in this image:
-
-.. image:: P113_OpticalCenter_ex1.png
-
-The shown Optical Center index for this 6 x 10 SPADs selection would be 223.
-
-|
-
 Change log
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