Re: Your tensegrity project.

hi Sven!

it's great to get some feedback about what i'm doing because it really
motivates me to continue.  i'm really starting to have fun with this
from-scratch project because it's teaching me about what tensegrity
is.

your first issue is with how the collision with the floor is handled,
and i think you're probably right.  thanks for bringing it up.  i
suppose the push must happen in the direction of the bar that is being
lifted above the floor.  feel free to make a suggestion about how it
should be handled.  i'm sure i can proceed with lots of other things
and then eventually come back and get this thing just right, if we can
work out a sufficiently authentic way.

the slack issue is certainly an interesting one, but i think i'm on
the right track by having the notion of an "ideal cable" be that of
something completely elastic.  i could be wrong (and i will definitely
find out if that's the case) but i think that tensegrity can be built
on the basis of these always-pull elastic cables.

if you think it's really important to explore systems that can contain
slack it will be possible to make it work either way, in a pluggable
fashion.

On 9/23/07, Sven Heinz <[email protected]> wrote:
> I am a little  bit confused regarding your handling of gravity you said, =
if one end is below ground both ends are pushed, but would that not cancel =
out rotational movement preventing the bars from tipping over?
>
> And about slack, as the appearance of slack is one of the major signs tha=
t a construct fails tensigrity I think constructs with cables that approach=
  zero length should be elimated from the evolution process.
> --
> Psssst! Schon vom neuen GMX MultiMessenger geh=F6rt?
> Der kanns mit allen: http://www.gmx.net/de/go/multimessenger
>
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-- =

Gerald de Jong
[email protected]
http://www.groovyactors.org
http://www.darwinathome.org

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