Re: vector fields - locarithmic scale

I said:

> You can do this for spatial DisplayRealTypes (e.g., XAxis) by
> defining new instances of DisplayRealTypes, define a new
> DisplayTupleType for them with a CoordinateSystem whose
> reference is one of the existing DisplayTupleTypes either
> Display.DisplaySpatialCartesianTuple [which is (XAxis, YAxis, ZAxis)]
> or Display.DisplayRGBTuple [which is (Red, Green, Blue)].
> . . .
> If you want logarithmic flow scales, you could do this for
> Display.DisplayFlow1Tuple [which is (Flow1X, Flow1Y, Flow1Z)]
> but none of the existing DataRenderers check for CoordinateSystems
> with flow references.  Thus this would need a new Class extending
> DataRenderer, which is a bit complex.

Oops, I am happy to say that I was wrong.  The existing DataRenderers
do check for CoordinateSystems with reference Display.DisplayFlow1Tuple
[which is (Flow1X, Flow1Y, Flow1Z)].

This means that you can define logarithmic or other new flow
coordinates in applications, and existing DataRenderers will
use them.

Bill Hibbard, SSEC, 1225 W. Dayton St., Madison, WI  53706
hibbard@xxxxxxxxxxxxxxxxx  608-263-4427  fax: 608-263-6738

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