Re: IsoSurfaces for Gridded3DSet

• To: Kapper Michael G Contr AFRL/PRSA <Michael.Kapper@xxxxxxxxxxxxxx>
• Subject: Re: IsoSurfaces for Gridded3DSet
• From: Bill Hibbard <billh@xxxxxxxxxxxxx>
• Date: Mon, 19 Jul 2004 18:33:56 -0500 (CDT)

Hi Michael,

> I am attempting visualization of a 3D curvilinear data set with a
> Gridded3DSet.  I am aware that the default DataRederers only do volume
> rendering for Linear3DSets, but I was wondering if it is possible to
> visualize iso-surfaces of the Gridded3DSet directly.  I tried
>
> rgbIsoMap = new ScalarMap( rgbVal,  Display.IsoContour );
> contWid = new ContourWidget(rgbIsoMap);
>
> as according to the tutorial. It doesn't mention if this methodology is only
> applicable to Linear3DSets, but I am assuming that it is since I haven't had
> any success with it.  I am looking for a way around resampling to a
> Linear3DSet.  Any help would be greatly appreciated.

Iso-surfaces do work with Gridded3DSets, and are done
commonly in the IDV. If you have a problem, we need more
information.

> On a related note, are there any custom DataRenderers available for direct
> volume rendering of Gridded3DSets?

None that I know of. By far the easiest way to do this
is to resample your Field to a Linear3DSet (passing a
Linear3DSet to the resample() method of the Field).

Cheers,
Bill

• References:
  • IsoSurfaces for Gridded3DSet
    • From: Kapper Michael G Contr AFRL/PRSA