POV-Ray : Newsgroups : povray.binaries.images : Railroad rails conforming to isosurface Server Time: 30 Sep 2008 23:43:23 GMT
  Railroad rails conforming to isosurface (Message 1 to 8 of 8)  
From: Greg M  Johnson
Subject: Railroad rails conforming to isosurface
Date: 19 Sep 2002 14:40:30
Message: <3d89e1de$1@news.povray.org>
Based on mesh2.
Now to build a train.  Perhaps actual trains should go on a less bumpy
surface, but this one tests the code...


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From: Christoph Hormann
Subject: Re: Railroad rails conforming to isosurface
Date: 19 Sep 2002 14:47:17
Message: <3D89E375.17EAE2A9@gmx.de>
"Greg M. Johnson" wrote:
> 
> Based on mesh2.
> Now to build a train.  Perhaps actual trains should go on a less bumpy
> surface, but this one tests the code...
> 

I won't board a train on that route...

When building railway tracks the irregularities in the surface are usually
strongly compensated, it would be interesting to automatically modify the
terrain according to this (i.e. cut in or build tunnels at the hills and
add material/build bridges in the lower parts)

Christoph

-- 
POV-Ray tutorials, IsoWood include,                 
TransSkin and more: http://www.tu-bs.de/~y0013390/  
Last updated 13 Aug. 2002 _____./\/^>_*_<^\/\.______


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From: Greg M  Johnson
Subject: Re: Railroad rails conforming to isosurface
Date: 19 Sep 2002 16:44:12
Message: <3d89fedc$1@news.povray.org>
"Christoph Hormann" <chris_hormann [at] gmxde> wrote in message
news:3D89E375.17EAE2A9@gmx.de...
> When building railway tracks the irregularities in the surface are usually
> strongly compensated, it would be interesting to automatically modify the
> terrain according to this (i.e. cut in or build tunnels at the hills and
> add material/build bridges in the lower parts)
>

Yes, I was already thinking along this route.

Q: what's the fastest way to do so?  I suppose CSG with an iso will choke
pov.


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From: Daniel Matthews
Subject: Re: Railroad rails conforming to isosurface
Date: 19 Sep 2002 22:22:08
Message: <1184636.6lMVorisEm@3-e.net>
Christoph Hormann wrote:

> 
> 
> "Greg M. Johnson" wrote:
>> 
>> Based on mesh2.
>> Now to build a train.  Perhaps actual trains should go on a less bumpy
>> surface, but this one tests the code...
>> 
> 
> I won't board a train on that route...
> 
> When building railway tracks the irregularities in the surface are usually
> strongly compensated, it would be interesting to automatically modify the
> terrain according to this (i.e. cut in or build tunnels at the hills and
> add material/build bridges in the lower parts)

The engineers would first optimize the route to use the flattest terrain, 
then they would cut and fill, tunnel and bridge as much as was required to 
keep the tracks below a given grade and curvature.


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From: Thomas Willhalm
Subject: Re: Railroad rails conforming to isosurface
Date: 20 Sep 2002 08:05:02
Message: <3d8ad6ae@news.povray.org>
Christoph Hormann wrote:
> 
> "Greg M. Johnson" wrote:
>> 
>> Based on mesh2.
>> Now to build a train.  Perhaps actual trains should go on a less bumpy
>> surface, but this one tests the code...
>> 
> 
> I won't board a train on that route...

Agreed, but it would be a perfect start for an animation with a cartoonish
train, I imagine.

Thomas


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From: Greg M  Johnson
Subject: Re: Railroad rails conforming to isosurface
Date: 24 Sep 2002 03:05:27
Message: <3d8fd677$1@news.povray.org>
Now I have ties.
As far as the hilliness, hasn't anyone ever heard of Gordon's hill?


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From: Bill DeWitt
Subject: Re: Railroad rails conforming to isosurface
Date: 24 Sep 2002 03:55:00
Message: <3d8fe214$1@news.povray.org>
"Greg M. Johnson" <gregj:-)56590@ao:-)l.com> wrote in message
news:3d8fd677$1@news.povray.org...
> Now I have ties.
> As far as the hilliness, hasn't anyone ever heard of Gordon's hill?

    Of course. Thomas and Gordon.


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From: Greg M  Johnson
Subject: Re: Railroad rails conforming to isosurface
Date: 24 Sep 2002 11:40:00
Message: <3d904f10$1@news.povray.org>
Highest compliment a two year old can pay his father (and mother):
he says,
"Zachary : Thomas ::  Daddy : Gordon :: Mommy : Henry"


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