Re: Axis flipping: how to check the display range has finished initia lising?

  • To: "Wilson, Andrew, J" <andrew.wilson@xxxxxxxxxxxx>
  • Subject: Re: Axis flipping: how to check the display range has finished initia lising?
  • From: Bill Hibbard <billh@xxxxxxxxxxxxx>
  • Date: Tue, 4 Feb 2003 13:44:04 -0600 (CST)
Hi Andrew,

Define a class implementing ScalarMapListener whose
mapChanged() method checks for ScalarMapEvent.AUTO_SCALE
events, and flips the range of your ScalarMap to ZAxis.
Pass an instance to the addScalarMapListener() method of
your ScalarMap to ZAxis.

Good luck,
Bill

On Tue, 4 Feb 2003, Wilson, Andrew, J wrote:

> Is there a smart way to pause until a display Range has
> finished initialising?
>
> I am working in 3D with surfaces where the "Z" axis is the
> time it takes for an acoustic pulse to travel down into the
> ground, reflect off a layer interface and return to the
> surface.
>
> So the Z axis needs to increase downwards.
>
> I have been successfully using
>
>       double[] range = timeMap3D.getRange();
>       timeMap3D.setRange(range[1],range[0]);
>
> to flip the range of the axes. This works for small horizons
> of 50,000 points but does not work for 500,000 points because
> the display range has not yet finished calculating by the
> time it reaches the above code. OK, so I could write a little
> loop to spin until the ranges are not yet NaN but I was
> wondering if there is a smarter way to do this? Maybe some
> kind of call back that I've missed?
>
> Cheers,
>
> Andrew
>
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