guide to making changes

[dygraphs.git] / docs / index.html

diff --git a/docs/index.html b/docs/index.html
index fe36356..f8ad937 100644 (file)
--- a/docs/index.html
+++ b/docs/index.html
@@ -34,6 +34,7 @@
         <li><a href="http://github.com/danvk/dygraphs">Source</a></li>
         <li><a href="http://code.google.com/p/dygraphs/issues/">Issues</a></li>
         <li><a href="http://code.google.com/p/dygraphs/issues/entry">Report Bug</a></li>
+        <li><a href="changes.html">Contribute a change</a></li>
         <li><a href="mailto:dygraphs-users [at] googlegroups.com">Contact</a></li>
       </ul>
 
@@ -625,9 +626,9 @@ perl -ne 'BEGIN{print "Month,Nominal,Real\n"} chomp; ($m,$cpi,$low,$close,$high)
         </tr>
         <tr>
           <td><strong>zoomCallback</strong></td>
-          <td><code>function(minDate,<br/>maxDate,<br/>minValue,<br/>maxValue){}</code></td>
+          <td><code>function(minDate,<br/>maxDate,<br/>yRanges){}</code></td>
           <td><code>null</code></td>
-          <td>A function to call when the zoom window is changed (either by zooming in or out). minDate and maxDate are milliseconds since epoch. minValue and maxValue are y-axis range values.
+          <td>A function to call when the zoom window is changed (either by zooming in or out). minDate and maxDate are milliseconds since epoch. yRanges is an array of [bottom, top] pairs, one for each y-axis.
           <div class="tests">Tests: <a href="tests/callback.html">callback</a> <a href="tests/zoom.html">zoom</a></div>
           </td>
         </tr>
@@ -853,7 +854,7 @@ perl -ne 'BEGIN{print "Month,Nominal,Real\n"} chomp; ($m,$cpi,$low,$close,$high)
 
         <tr>
           <td><strong>highlightCallback</strong></td>
-          <td><code>function(event, x, points)</code></td>
+          <td><code>function(event, x, points,row)</code></td>
           <td><code>null</code></td>
           <td>When set, this callback gets called every time a new point is highlighted. The parameters are the JavaScript mousemove event, the x-coordinate of the highlighted points and an array of highlighted points: <code>[ {name: 'series', yval: y-value}, &hellip; ]</code>
           <div class="tests">Tests: <a href="tests/callback.html">callback</a> <a href="tests/crosshair.html">crosshair</a> </div>
@@ -870,6 +871,20 @@ perl -ne 'BEGIN{print "Month,Nominal,Real\n"} chomp; ($m,$cpi,$low,$close,$high)
         </tr>
 
         <tr>
+          <td><strong>underlayCallback</strong></td>
+          <td><code>function(canvas, area, dygraph)</code></td>
+          <td><code>null</code></td>
+          <td>When set, this callback gets called before the chart is drawn. It
+            allows you to draw underneath the chart. See the tests for more
+            details on how to use this.
+            <div class="tests">Tests:
+              <a href="tests/underlay-callback.html">underlay-callback</a>
+              <a href="tests/highlighted-region.html">highlighted-region</a>
+            </div>
+          </td>
+        </tr>
+
+        <tr>
           <td><strong>strokeWidth</strong></td>
           <td><code>0.5, 2.0</code></td>
           <td><code>1.0</code></td>