question:  given two telescoping arms and a pivot between them, is there
a way to fix the ends of the arms and only move the pivot?

[]-------0----[]

[]----0-------[]

[]    --[]
 \  --
  0-

[]--     []
    --  /
      -0

etc.

where [] are fixed and 0 is the pivot and - or \ is a telescoping arm

also is there a way to make circular IK relationships (ie a triangle or
a square with one fixed point; or a triangle where one arm is longer
than the triangle?)

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Hi ryan constantine, you recently wrote in moray.win:

> question:  given two telescoping arms and a pivot between them, is there
> a way to fix the ends of the arms and only move the pivot?
Nope, sorry. IK is purely hierarchical (at least in Moray's
implementation.

- Lutz
  email : lut### [at] stmuccom
  Web   : http://www.stmuc.com/moray

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workaround idea: duplicate the end-object (the "0" in your "image") and
create two telescopic arms (one from the left, one from the right) that
each "end" in one of those "0"s. Then just translate both "0"s to the
same position, and mark only one of them for export.

Johannes.

"ryan constantine" <rco### [at] yahoocom> wrote in message
news:39013E24.8B08E111@yahoo.com...
> question:  given two telescoping arms and a pivot between them, is
there
> a way to fix the ends of the arms and only move the pivot?
>
> []-------0----[]
>
> []----0-------[]
>
> []    --[]
>  \  --
>   0-
>
> []--     []
>     --  /
>       -0
>
> etc.
>
> where [] are fixed and 0 is the pivot and - or \ is a telescoping arm
>
> also is there a way to make circular IK relationships (ie a triangle
or
> a square with one fixed point; or a triangle where one arm is longer
> than the triangle?)

Post a reply to this message

Hey, Johannes- what ever happened with Tree Designer? Are any new versions
slated for release, or is it to stay in the somewhat perpetual, sPatch like
stasis that it has been in ever since release 1?Is there not enough
consumer demand? If so, would you ponder releasing it as freeware(maybe
even open source?)?

TIA,
Alex Magidow

Johannes Hubert wrote:

> workaround idea: duplicate the end-object (the "0" in your "image") and
> create two telescopic arms (one from the left, one from the right) that
> each "end" in one of those "0"s. Then just translate both "0"s to the
> same position, and mark only one of them for export.
>
> Johannes.
>
> "ryan constantine" <rco### [at] yahoocom> wrote in message
> news:39013E24.8B08E111@yahoo.com...
> > question:  given two telescoping arms and a pivot between them, is
> there
> > a way to fix the ends of the arms and only move the pivot?
> >
> > []-------0----[]
> >
> > []----0-------[]
> >
> > []    --[]
> >  \  --
> >   0-
> >
> > []--     []
> >     --  /
> >       -0
> >
> > etc.
> >
> > where [] are fixed and 0 is the pivot and - or \ is a telescoping arm
> >
> > also is there a way to make circular IK relationships (ie a triangle
> or
> > a square with one fixed point; or a triangle where one arm is longer
> > than the triangle?)

--
You Know You've Been Raytracing Too Long When:
 You purchase Toy Story for inspiration- Then do a better version for fun.
Produced by Alex Magidow's Sig File Randomizer(YKYBRTTL jokes courtesy of
c.g.r.raytracing)

Post a reply to this message

"Alex Magidow" <axi### [at] mninternet> wrote in message
news:390439A3.180ED36B@mninter.net...
> Hey, Johannes- what ever happened with Tree Designer? Are any new
versions
> slated for release, or is it to stay in the somewhat perpetual, sPatch
like
> stasis that it has been in ever since release 1?

Well yes, unfortunately this has been so since v. 1 and will likely
continue like that, probably out of the same reasons sPatch is in
statis: Real life interference...

> Is there not enough consumer demand?
> If so, would you ponder releasing it as freeware(maybe
> even open source?)?

I am pondering... :)

Johannes

Post a reply to this message

Johannes Hubert wrote:

> "Alex Magidow" <axi### [at] mninternet> wrote in message
> news:390439A3.180ED36B@mninter.net...
> > Hey, Johannes- what ever happened with Tree Designer? Are any new
> versions
> > slated for release, or is it to stay in the somewhat perpetual, sPatch
> like
> > stasis that it has been in ever since release 1?
>
> Well yes, unfortunately this has been so since v. 1 and will likely
> continue like that, probably out of the same reasons sPatch is in
> statis: Real life interference...
>
> > Is there not enough consumer demand?
> > If so, would you ponder releasing it as freeware(maybe
> > even open source?)?
>
> I am pondering... :)
>

If you do ponder it into freeware, then disappear into the abyss, could you
release the source code first so that it doesn't stay at a constant level of
development like sPatch, or at least whip up a plugin system of some sort?
sPatch has stayed maddeningly the same since...1/19/98 according to the
website...and its darn difficult to get ahold of Mike Clifton...so please
don't disappear into the abyss...and if you do, please leave something
behind...

>
> Johannes

--
You Know You've Been Raytracing Too Long When:
 You purchase Toy Story for inspiration- Then do a better version for fun.
Produced by Alex Magidow's Sig File Randomizer(YKYBRTTL jokes courtesy of
c.g.r.raytracing)

Post a reply to this message

In what was sPatch written?
Anyway, Clifton might just be reading this ng 8)
Alex Magidow wrote:
> If you do ponder it into freeware, then disappear into the abyss, could you
> release the source code first so that it doesn't stay at a constant level of
> development like sPatch, or at least whip up a plugin system of some sort?
> sPatch has stayed maddeningly the same since...1/19/98 according to the
> website...and its darn difficult to get ahold of Mike Clifton...so please
> don't disappear into the abyss...and if you do, please leave something
> behind...
--
AKA paul_virak_khuong at yahoo.com, pkhuong at deja.com, pkhuong at
crosswinds.net and pkhuong at technologist.com(list not complete)...

Post a reply to this message

Actually, to be perfectly accurate, he's not allowed to release the source code,
whatever teh program is written in...thats why I suggested a plugin api as an
alternative to free source.

pk wrote:

> In what was sPatch written?
> Anyway, Clifton might just be reading this ng 8)
> Alex Magidow wrote:
> > If you do ponder it into freeware, then disappear into the abyss, could you
> > release the source code first so that it doesn't stay at a constant level of
> > development like sPatch, or at least whip up a plugin system of some sort?
> > sPatch has stayed maddeningly the same since...1/19/98 according to the
> > website...and its darn difficult to get ahold of Mike Clifton...so please
> > don't disappear into the abyss...and if you do, please leave something
> > behind...
> --
> AKA paul_virak_khuong at yahoo.com, pkhuong at deja.com, pkhuong at
> crosswinds.net and pkhuong at technologist.com(list not complete)...

--
You Know You've Been Raytracing Too Long When:
 You purchase Toy Story for inspiration- Then do a better version for fun.
Produced by Alex Magidow's Sig File Randomizer(YKYBRTTL jokes courtesy of
c.g.r.raytracing)

Post a reply to this message

Hi Johannes Hubert, you recently wrote in moray.win:

> workaround idea: duplicate the end-object (the "0" in your "image") and
> create two telescopic arms (one from the left, one from the right) that
> each "end" in one of those "0"s. Then just translate both "0"s to the
> same position, and mark only one of them for export.
Yes, this is a good idea. I also thought about letting Moray do this
by making the second copy a reference. So when you move the original,
the reference moves with it anyway, but at the moment it doesn't
realize it is at the end of an IK chain. Maybe next version will
support this....
- Lutz
  email : lut### [at] stmuccom
  Web   : http://www.stmuc.com/moray

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