Hi,SilveMartin-Michiellot
Your project of geometry modeling is a wonderful thing! I knew that a student in
Cornell university had been down a simple project of boolean operation, the solids
were rendered in Wireframe, and in java3d it could be rendered in Solidframe easily.
The homepage of that project was there,
http://www.nbb.cornell.edu/neurobio/land/OldStudentProjects/cs490-96to97/indira/csg/doc.html
.
The main aim of our project was to develop a VR based MEMS(Micro Electronic
Mechanical System) CAD tools. This tools was not so complex as common CAD system for
the layered Structure of MEMS elements. At present we modify the above boolean
operation API and made it rendered in Solidframe in java3d successfully, we might use
this API as our lowest geometry modeling kernel.
Your project of geometry modeling seems attractive and I also believe it would be
useful for our MEMS CAD tools. It might be more popular than ACIS in the future. :)
I'm looking for your first edition!
Our CAD tools might also support virtual reality modeling. Alessandro Salsetti
told me his bad experience on driving java3d input device using JNI. I didn't like JNI
either. It didn't obey the Java policy: "write once ,run anywhere", so we decide to
write all the input device "drivers" in purly java using Java communication API. But
it was not a longest way, we need helps on driving java3d input device such as helmet,
data gloves, flock of birds, PHANToM and etc.
===========================================================================
>At 09:16 10/11/2003 +0800, you wrote:
>>Well,
>>
>> We are labored at a regular geometry modeling tools based on
>> CSG(Constructive Solid Geometry) and B-rep using purely Java. Any one can
>> give some suggestion on this project? Thanks!
>>
>>
>
> From Mona Wong-Barnum <[EMAIL PROTECTED]>, on this list on the 24
>October 2003
>
> Has anyone written a class that will give 3D volume for GeometryInfo
>polygons? Or perhaps convert it to something else and give volume measurement?
>
> I need to do this and was just wondering if this has been done
>already.
>
>thanks,
>Mona
>
>
> From Danilo Balby, on this list on the 17 October 2003,
>
>Re: [JAVA3D] substracting shapes
>
>I'm working with boolean operations among solids in Java3d right now, I
>believe it would be usefull for your purpose. I think in three weeks it will
>be finished and released. But if you want to make it for yourself, keep in
>mind it demands some hard work...
>
>Danilo Balby
>
>
>A lot of people would be interested in getting your work. Let us know.
>
>
>> Y.Lu
>>[EMAIL PROTECTED]
>> 2003-11-10
>>
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>
>__________________________________________________________________________________________
>
>Silvere Martin-Michiellot builds the Internet future on
>www.digitalbiosphere.com
>__________________________________________________________________________________________
>
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Best regards,
Y.Lu
[EMAIL PROTECTED]
2003-11-11
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