Hello!
I have the error message points in polygon are not co-planar, what means
co-planar ? (example), what can I do to make them co-planar?

Alex

Post a reply to this message

robcad-user <alg### [at] studuni-sbde> wrote:
: Hello!
: I have the error message points in polygon are not co-planar, what means
: co-planar ? (example), what can I do to make them co-planar?

  It means that they are not located in the same plane.
  You could define your polygon with one of the components of all vectors
set to 0 and then rotate and translate it to its place.

-- 
main(i,_){for(_?--i,main(i+2,"FhhQHFIJD|FQTITFN]zRFHhhTBFHhhTBFysdB"[i]
):5;i&&_>1;printf("%s",_-70?_&1?"[]":" ":(_=0,"\n")),_/=2);} /*- Warp -*/

Post a reply to this message

On Thu, 27 Jan 2000 14:13:30 +0100, robcad-user <alg### [at] studuni-sbde>
wrote:

>Hello!
>I have the error message points in polygon are not co-planar, what means
>co-planar ? (example), what can I do to make them co-planar?
>
>Alex

It means they are not in the same plane. A polygon is a flat shape and
all its points must lie in the same plane. I don't know what polygon
you're trying to render, if you post the snippet of code that POV
chokes at it would be easier to locate the problem.


Peter Popov
pet### [at] usanet
ICQ: 15002700

Post a reply to this message

robcad-user wrote:
> 
> Hello!
> I have the error message points in polygon are not co-planar, what
> means co-planar ? (example), what can I do to make them co-planar?

The message means that there is no plane that can contain all of the
points you gave for the object.  This happens for one of two reasons:

1) You actually tried to place all of the points such that they cannot
all lie in one plane.  For instance,

  polygon { 5,
    <-1,0,-1>,<1,0,-1>,<1,.1,1>,<-1,0,1>,<-1,0,-1>
  }

will cause this error; three of the points lie in the y=0 plane, but the
third point is off-plane.

2) The other cause is that you tried to place them in a plane that is
at an angle to the coordinate axes, and rounding error has caused one
of the points to go out of the plane.

One work-around is to define the polygon so that it lies in one of the
coordinate planes; specifically, set one of the coordinate components
to zero in all of the points, and then move it into position with the
appropriate transforms.

The other work-around is to turn the polygon into a bunch of triangles,
which are not subject to this problem; needless to say, you can only use
this work-around if you are making a linear spline polygon.

Hope this helps,
John

Post a reply to this message

On Thu, 27 Jan 2000 18:26:41 -0500, The Yodeling Veterinarian of the Alps wrote:

Are the Alps in that much need of veterinary care?  I wasn't
even aware that they qualified as an animal; I would have guessed
mineral.

-- 
These are my opinions.  I do NOT speak for the POV-Team.
The superpatch: http://www2.fwi.com/~parkerr/superpatch/
My other stuff: http://www2.fwi.com/~parkerr/traces.html

Post a reply to this message

Ron Parker wrote:
> 
> On Thu, 27 Jan 2000 18:26:41 -0500, The Yodeling Veterinarian of the
> Alps wrote:
> 
> Are the Alps in that much need of veterinary care?  I wasn't
> even aware that they qualified as an animal; I would have guessed
> mineral.

Actually I got it from a VeggieTales tape.  It sounded ludicrous
enough to be a good Usenet handle for one of my Netscape user
profiles.

-- 
ICQ: 46085459

Post a reply to this message

Neato, those VeggieTales tapes, huh?  I think I'll try and get a Job with
BigIdea. :)



John VanSickle wrote:

> Ron Parker wrote:
> >
> > On Thu, 27 Jan 2000 18:26:41 -0500, The Yodeling Veterinarian of the
> > Alps wrote:
> >
> > Are the Alps in that much need of veterinary care?  I wasn't
> > even aware that they qualified as an animal; I would have guessed
> > mineral.
>
> Actually I got it from a VeggieTales tape.  It sounded ludicrous
> enough to be a good Usenet handle for one of my Netscape user
> profiles.
>
> --
> ICQ: 46085459

--
H.E. Day

Post a reply to this message

Well...
You might have a shot there. Just remember that they focus on character,
emotion and movement. But I think your existing work would fit in nicely
with their Larry-Boy stuff.


"H.E. Day" wrote:

> Neato, those VeggieTales tapes, huh?  I think I'll try and get a Job with
> BigIdea. :)
>
> John VanSickle wrote:
>
> > Ron Parker wrote:
> > >
> > > On Thu, 27 Jan 2000 18:26:41 -0500, The Yodeling Veterinarian of the
> > > Alps wrote:
> > >
> > > Are the Alps in that much need of veterinary care?  I wasn't
> > > even aware that they qualified as an animal; I would have guessed
> > > mineral.
> >
> > Actually I got it from a VeggieTales tape.  It sounded ludicrous
> > enough to be a good Usenet handle for one of my Netscape user
> > profiles.
> >
> > --
> > ICQ: 46085459
>
> --
> H.E. Day

Post a reply to this message

H.E. Day wrote:
> 
> Neato, those VeggieTales tapes, huh?  I think I'll try and get a Job
> with BigIdea. :)

If they're hiring when I retire from the Air Force I'll bee looking into
it as well.  I e-mailed them a while back, asking them which renderer
they used.  The reply said that at the time they were migrating from one
package to another.  I forget which apps were named, but neither of them
were POV-Ray :-(

Their web site has a job listing, and it looks like they want pretty
much the whole spectrum of workers (ie, CG artists, regular artists,
render wranglers, programmers, admin staffers, etc.).  They are *not*
looking for voice talent.

If you're wantin' a job, you have to submit a cover letter, resume, and
a demo-reel in VHS format, and be prepared to move to Lombard, Illinois
(Chicago area) once you are hired.

The stuff is at http://www.bigidea.com/company/careers/

[Follow-ups gone to p.o-t]

Regards,
John

Post a reply to this message