<!--+
    |   History of changes
    +-->

<changes title="History of Changes">

 <devs>
  <!-- in strict alphabetical order -->
  <person name="Stefano Mazzocchi" email="stefano@apache.org" id="SM"/>
 </devs>

 <release version="1.2" date="@date@">
  <action dev="SM" type="change">
   Moved to labs.apache.org.
  </action>
  <action dev="SM" type="add">
   Added the ability to zoom into the graphs by right-clicking 
   (or control-clicking for single-button mice) and show the labels
   of the nodes closeby (they are drawn radially from the mouse
   location to reduce label overlap).
  </action>
  <action dev="SM" type="change">
   Moved the datacloud aggregation and processing into the application.
   This allows a nicer usability of the tool so that users can create
   dataclouds on the fly using preprocessed mailbox information
   that can be published on the web.
  </action>
  <action dev="SM" type="add">
   Added the ability to introduce time-based "link decay" which
   simulates the fact that the importance of a reply decays with
   time.
  </action>
  <action dev="SM" type="change">
   Modified the mailbox processing scripts to produce message data
   instead of dataclouds. Message data is fetched by the application
   to produce the datacloud according to the selection of the processed
   message archives that the user selects.
  </action>
  <action dev="SM" type="change">
   Improved the overall prettyness of the drawing by extensive use of Java2D
   functions like rounded rectangles and transparency. The overall drawing
   performance has been reduced, but there is the ability to turn off part
   of the drawing to improve performance.
  </action>
  <action dev="SM" type="add">
   Introduction of a "grouping" capabilities that draws circles around the nodes
   that participated in a particular community. This allows better identification
   of the 'node clusters' which belong to different communities.
  </action>
 </release>
 
 <release version="1.1" date="Jan 16, 2003">
  <action dev="SM" type="add">
    Changed the rendering system from dynamic SVG to java applet due to
    severe performance limitations of the SVGViewer.
  </action>
 </release>

 <release version="1.0" date="Dec 7, 2002">
  <action dev="SM" type="add">
    Initial code
  </action>
 </release>
</changes>
