Document point.idx (fixes #471)

diff --git a/generate-documentation.py b/generate-documentation.py
index f6d7d79..d73fcc4 100755 (executable)
--- a/generate-documentation.py
+++ b/generate-documentation.py
@@ -204,6 +204,7 @@ Some callbacks take a point argument. Its properties are:<br/>
 <li>xval/yval: The data coordinates of the point (with dates/times as millis since epoch)</li>
 <li>canvasx/canvasy: The canvas coordinates at which the point is drawn.</li>
 <li>name: The name of the data series to which the point belongs</li>
+<li>idx: The row number of the point in the data set</li>
 </ul>
 </div> <!-- #content -->