Mark Hanford wrote:

> Length conservation is still handled in a bodge-it'n'leg-it fashion, I'm
> planning to just stretch the control points a bit depending on the angle of
> the bend.  (At the moment, it does nothing, as you can see from the image -
> no loops)

Try http://news.povray.org/povray.binaries.scene-files/20553/ for a string
simulation. I am working on some string macros myself that will do what you want,
but the code is far from release. I'll get an anim together and post it later in
the week if you like.

MJL
--
light_source{9*(y#macro A(H,B,R,T)prism{0,1H+4,0u*9,9v*9,0#local I=1;#while(I<H)
#local V=asc(substr(B,I,1))-33;<div(V,10)mod(V,10)>#local I=I+1;#end pigment{rgb
y}rotate-<90,R>translate-T}#end-z)rgb 9}A(14",6;MWmhryXN3,"60<15,0,8>)box{-99(x+
z)*99pigment{rgb 1}}fog{distance 11}camera{location(y-z)*25look_at 0}A(8"6hiAG=6
"-60x*-10)A(16"/.@VZno=<PLA89/"0x*5) // MJL

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On Tue, 12 Feb 2002 11:50:14 -0000, Mark Hanford wrote:
> Here is an update on the robot hand that I started a while ago...
> 
> I've changed the way the palm is modelled, and added some bits from my
> electronics.inc

This looks realy good, sove quite detailed modelling.  

--
#local i=.1;#local I=(i/i)/i;#local l=(i+i)/i;#local ll=(I/i)/l;box{<-ll,
-((I/I)+l),-ll><ll,-l,ll>pigment{checker scale l}finish{ambient((I/l)/I)+
(l/I)}}sphere{<i-i,l-l,(I/l)>l/l pigment{rgb((I/l)/I)}finish{reflection((
I/l)/I)-(l/I)specular(I/l)/I}}light_source{<I-l,I+I,(I-l)/l>l/l} // Steve

Post a reply to this message

That would be great, thanks.  I think that is probably beyond my current
POV/maths skills - I'm having to re-learn stuff I forgot years ago...

I'm working on an IK method of positioning the fingers at the moment, so I
haven't really got time to do string stuff as well!

thanks,

Mark Hanford
http://www.mrhanford.com/povray


"Mark James Lewin" <m_j### [at] yahoocomau> wrote in message
news:3C698C50.5D649F85@yahoo.com.au...
>
>
> Mark Hanford wrote:
>
> > Length conservation is still handled in a bodge-it'n'leg-it fashion, I'm
> > planning to just stretch the control points a bit depending on the angle
of
> > the bend.  (At the moment, it does nothing, as you can see from the
image -
> > no loops)
>
> Try http://news.povray.org/povray.binaries.scene-files/20553/ for a string
> simulation. I am working on some string macros myself that will do what
you want,
> but the code is far from release. I'll get an anim together and post it
later in
> the week if you like.
>
> MJL
> --
> light_source{9*(y#macro A(H,B,R,T)prism{0,1H+4,0u*9,9v*9,0#local
I=1;#while(I<H)
> #local V=asc(substr(B,I,1))-33;<div(V,10)mod(V,10)>#local I=I+1;#end
pigment{rgb
> y}rotate-<90,R>translate-T}#end-z)rgb
9}A(14",6;MWmhryXN3,"60<15,0,8>)box{-99(x+
> z)*99pigment{rgb 1}}fog{distance 11}camera{location(y-z)*25look_at
0}A(8"6hiAG=6
> "-60x*-10)A(16"/.@VZno=<PLA89/"0x*5) // MJL
>
>

Post a reply to this message

Thanks,  it's taken some time...

--

Mark Hanford
http://www.mrhanford.com/povray


"Steve" <ste### [at] zeroppsuklinuxnet> wrote in message
news:slr### [at] zero-ppslocaldomain...
> On Tue, 12 Feb 2002 11:50:14 -0000, Mark Hanford wrote:
> > Here is an update on the robot hand that I started a while ago...
> >
> > I've changed the way the palm is modelled, and added some bits from my
> > electronics.inc
>
> This looks realy good, sove quite detailed modelling.
>
> --
> #local i=.1;#local I=(i/i)/i;#local l=(i+i)/i;#local ll=(I/i)/l;box{<-ll,
> -((I/I)+l),-ll><ll,-l,ll>pigment{checker scale l}finish{ambient((I/l)/I)+
> (l/I)}}sphere{<i-i,l-l,(I/l)>l/l pigment{rgb((I/l)/I)}finish{reflection((
> I/l)/I)-(l/I)specular(I/l)/I}}light_source{<I-l,I+I,(I-l)/l>l/l} // Steve

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I can't see how the hand would close. Am I missing something? I really like
the "clips" at the joints.

 -Shay

Mark Hanford <ren### [at] blueyondercouk> wrote in message
news:3c69016e@news.povray.org...

Post a reply to this message

"Mark Hanford" <ren### [at] blueyondercouk> wrote in
news:3c69016e@news.povray.org: 

> I've changed the way the palm is modelled, and added some bits from my
> electronics.inc

I'm thinking that a few chips in current packaging (SMT, PGA or similar), 
rather than the 14 pin DIPs in your scene, might fit a bit better with 
style of the robot hand.  DIPs are more than a little long in the tooth, 
you know.  :-)

Post a reply to this message

Sorry, it's all I had to hand (hahahaha)

Actually, the components came from a totally different project, and were
modelled from real bits I had lying around here from some old school
projects (more than a few years old...)

Mark Hanford
http://www.mrhanford.com/povray


"Coridon Henshaw" <che### [at] sympaticoca> wrote in message
news:Xns### [at] 204213191226...
> "Mark Hanford" <ren### [at] blueyondercouk> wrote in
> news:3c69016e@news.povray.org:
>
> > I've changed the way the palm is modelled, and added some bits from my
> > electronics.inc
>
> I'm thinking that a few chips in current packaging (SMT, PGA or similar),
> rather than the 14 pin DIPs in your scene, might fit a bit better with
> style of the robot hand.  DIPs are more than a little long in the tooth,
> you know.  :-)

Post a reply to this message

Mark Hanford wrote:

> That would be great, thanks.  I think that is probably beyond my current
> POV/maths skills - I'm having to re-learn stuff I forgot years ago...
>
> I'm working on an IK method of positioning the fingers at the moment, so I
> haven't really got time to do string stuff as well!

See my post in p.b.a on this.

MJL

--
light_source{9*(y#macro A(H,B,R,T)prism{0,1H+4,0u*9,9v*9,0#local I=1;#while(I<H)
#local V=asc(substr(B,I,1))-33;<div(V,10)mod(V,10)>#local I=I+1;#end pigment{rgb
y}rotate-<90,R>translate-T}#end-z)rgb 9}A(14",6;MWmhryXN3,"60<15,0,8>)box{-99(x+
z)*99pigment{rgb 1}}fog{distance 11}camera{location(y-z)*25look_at 0}A(8"6hiAG=6
"-60x*-10)A(16"/.@VZno=<PLA89/"0x*5) // MJL

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The Hanford hand is coming about nicely i hope in no suffering of the home
life... =] I like the fingertips... ??? Looks rubbery and useful for leafing
through papers ect... =]

Mark Hanford wrote:

> Here is an update on the robot hand that I started a while ago...
>
> I've changed the way the palm is modelled, and added some bits from my
> electronics.inc
>
> Having put the model inside a "real" scene (my shed, see web), the textures
> have really improved, although they are still extremely basic
> pigments-with-a-bit-of-reflection.
>
> I've just noticed that a couple of the objects are floating a bit, and the
> heel of the hand needs to come down, but anyway...
>
> --
>
> Mark Hanford
> http://www.mrhanford.com/povray
>
>  [Image]

Post a reply to this message

Thanks very much.  I do most of the work on this on the train going
to/coming from work.  The wife might disagree, although I'd sware that I
spend no more than half an hour (or is it 3) on this in the evenings :)
Time goes astray sometimes...

Oddly enough, I like the finger tips, even though they are pretty much
unchaged since the original  (box+sphere)-box-box.  I might try to find a
way of putting some fingerprint-type roughness onto the tips...

see ya

Mark Hanford
http://www.mrhanford.com/povray


"Ryan Mooney" <rdm### [at] earthlinknet> wrote in message
news:3C6F4FE2.9D25A44A@earthlink.net...
> The Hanford hand is coming about nicely i hope in no suffering of the home
> life... =] I like the fingertips... ??? Looks rubbery and useful for
leafing
> through papers ect... =]
>
> Mark Hanford wrote:
>
> > Here is an update on the robot hand that I started a while ago...
> >
> > I've changed the way the palm is modelled, and added some bits from my
> > electronics.inc
> >
> > Having put the model inside a "real" scene (my shed, see web), the
textures
> > have really improved, although they are still extremely basic
> > pigments-with-a-bit-of-reflection.
> >
> > I've just noticed that a couple of the objects are floating a bit, and
the
> > heel of the hand needs to come down, but anyway...
> >
> > --
> >
> > Mark Hanford
> > http://www.mrhanford.com/povray
> >
> >  [Image]
>

Post a reply to this message