I'm working with a GridSurface chart with millions of points.  I want some double-click behaviors as follows:

1. Double-click the legend or the vertical axis... bring up a scaling dialog
2. Double-click the plot or the walls... restore the viewing angle (elevation, rotation, zoom, height)

My problem is that the hit test is very slow when I have a million or so points.  The use will double-click, and then double-click again thinking that the first one wasn't handled.

private void nChartControl1_MouseDoubleClick(object sender, MouseEventArgs e)
{
   // this handler is called immediately after the double click, but the HitTest function takes too much time. 
   NHitTestResult result = nChartControl1.HitTest(e.X, e.Y);
   // do something with "result"
}

Is there anyway I can do a hit test in a faster way?  Perhaps ignore the plot and just check for walls, legend and axes?

Thanks,
 
    - Mark

I think I'm tracking with you... but how do I undo this after the hit test?

   - Mark