Richard,

I think the general answer for Java 3D is no. I believe there are hacks
using Polygon offsets and duplicating your geometry (one wireframe, one
solid rendered) and rendering both (you move the wireframe version a little
closer to the viewer), but this is unlikely to be suitable for all cases and
work on all hardware.

I suggest you consult OpenGL documentation for more general discussions of
this.

Sincerely,

Dan

-----Original Message-----
From: Discussion list for Java 3D API
[mailto:[EMAIL PROTECTED]]On Behalf Of Richard Bragg
Sent: Tuesday, January 08, 2002 5:54 PM
To: [EMAIL PROTECTED]
Subject: Re: Is it possible to show only outlines in wireframe mode?


Does anyone know how I could get just the lines along the outermost outline
of the entire polyhedron?  For instance, consider a vertical cylinder.  The
approach described below would show the outline of the two circular faces,
but there would be no vertical edges representing the body of the cylinder.
I need a solution that shows the entire outline of the 3d shape, as well as
(possibly) the face boundaries, but none of the interior edges.

Thanks
Rich Bragg

On Mon, 14 Feb 2000 15:02:46 -0500, Dvorak, Daniel J.
<[EMAIL PROTECTED]> wrote:

>I use a GeometryInfo object to feed data into a LineStripArray to get a
>wireframe.
>
>> When using a wireframe appearance (by setting PolygonAttributes and
>> LineAttributes appropriately within an Appearance), the wireframe shows
>> the
>> internal triangles of the faces in addition to the external shape. For
>> example, if I use a TriangleFanArray to form the surface of a polygon, I
>> see
>> the whole fan rather than the outside boundary. This is a visual mess. Is
>> there anything I can do to eliminate the interior lines?
>>
>> ---------------------------------------------------------
>> John A. Tenney
>> Commotion Technology, Inc.
>> World Trade Center, Suite 250L
>> San Francisco, CA  94111
>> Tel: (415) 391-9050 x102 Fax: (415) 391-9212
>> [EMAIL PROTECTED]   http://www.commotion-technology.com
>>

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