My tracks animation beginning with the complete design of the tracks.
Each elements must to be define exactly in space and have an exactly
definition  of  their  movement when tank run.
The complexity of the complete track is for me one "break head".
So , if you have ideas to organize this beginning , to lead me in the good
direction , thanks for.

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boguet wrote:
> 
> My tracks animation beginning with the complete design of the tracks.
> Each elements must to be define exactly in space and have an exactly
> definition  of  their  movement when tank run.
> The complexity of the complete track is for me one "break head".
> So , if you have ideas to organize this beginning , to lead me in the good
> direction , thanks for.
> 


 I don't have a good answer for you. I will suggest that you look here
for animation tutorials and maybe you will find a site that will give
you some good ideas. The #2 tutorial by Steve Strickland is good and
so are some of the other animation tutorials in that list.

http://www.povray.org/links/3D_Tutorials/POV-Ray_Tutorials/

Good luck,

-- 
Ken Tyler

See my 1000+ Povray and 3D Rendering and Raytracing Links at:
http://home.pacbell.net/tylereng/index.html

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> My tracks animation beginning with the complete design of the tracks.
> Each elements must to be define exactly in space and have an exactly
> definition  of  their  movement when tank run.
> The complexity of the complete track is for me one "break head".
> So , if you have ideas to organize this beginning , to lead me in the good
> direction , thanks for.


following the track layout you posted here earlier.  The tracks themselves
are a hermite spline created with my (to-be-released) Spline macro system.
The macros allow you to automatically create spline objects using links, so
all you have to do after setting the shape of the spline is to specify a
single link object and the number of links you want to use.

The animation is programmed (quite simply) with respect to the distance
travelled by the track, so the four wheels correctly rotate as the track
links move around the spline.  The macros also allow automatic animation of
spline objects, so if you designed a second spline setting the movement path
of the tank as a whole it would be easy to use the distance travelled by the
tank (calculated by the macros for you) to control the movement of the
tracks.

There's a fuller description of the macro file on my site
(http://www.geocities.com/SiliconValley/Lakes/1434), and I had hoped I might
be able to create a set of example animations before releasing the file for
others to try to make sense of... In the meantime, though, I'm reasonably
certain I won't be making too many major changes to the macro so if you
would like a preview copy and the code I used to create the tracks
animation, do feel free to ask...

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