POV-Ray : Newsgroups : moray.win : Geometry in Moray... Server Time: 20 Jun 2019 07:12:08 GMT
  Geometry in Moray... (Message 1 to 6 of 6)  
From: tptorpey
Subject: Geometry in Moray...
Date: 11 Aug 2006 14:30:00
Message: <web.44dc9421a744a04d4f032e0d0@news.povray.org>
I need to create a perfectly triangular object (glass plate) in Moray and
can't figure out how to easily do so. I have gone throught the doc's I can
find but to no avail...yes I am a nubi....


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From: Marc
Subject: Re: Geometry in Moray...
Date: 11 Aug 2006 14:42:40
Message: <44dc9760@news.povray.org>
"tptorpey" <tpt### [at] gmailcom> a écrit dans le message de
news:web.44dc9421a744a04d4f032e0d0@news.povray.org...
> I need to create a perfectly triangular object (glass plate) in Moray and
> can't figure out how to easily do so. I have gone throught the doc's I can
> find but to no avail...yes I am a nubi....
>
>
What do you call "perfectly " triangular? any 3 coplanar vertice polygone
makes a perfect triangle.
You could try with a translational sweep with linear interpolation...

Marc


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From: tptorpey
Subject: Re: Geometry in Moray...
Date: 13 Aug 2006 11:25:01
Message: <web.44df0b59366ff4524f032e0d0@news.povray.org>
please forgive my embarassing ignorance but I'm (as I stated in my first
post) a new comer to this software and to 3d modling in general. I don't
understand how to  create a simple triangle object in this program. there
are cubes and spheres but nothing triangular to start with.

"Marc" <jac### [at] wanadoofr> wrote:
> "tptorpey" <tpt### [at] gmailcom> a écrit dans le message de
> news:web.44dc9421a744a04d4f032e0d0@news.povray.org...
> > I need to create a perfectly triangular object (glass plate) in Moray and
> > can't figure out how to easily do so. I have gone throught the doc's I can
> > find but to no avail...yes I am a nubi....
> >
> >
> What do you call "perfectly " triangular? any 3 coplanar vertice polygone
> makes a perfect triangle.
> You could try with a translational sweep with linear interpolation...
>
> Marc


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From: StephenS
Subject: Re: Geometry in Moray...
Date: 13 Aug 2006 15:06:02
Message: <44df3fda$1@news.povray.org>
...
> I don't
> understand how to  create a simple triangle object in this program. there
> are cubes and spheres but nothing triangular to start with.
Starting with a new scene, you can create a 'Translational Sweep'. On the 
right hand side select the 'Edit' tab. Useing the top viewport you can 
left/click/drag points around, or while holding down the shift key, select a 
point and enter the values in the 'Coordinates of Selected Points' section.
If  you need to have a mesh object, you can convert this shape into a mesh 
with Edit/Convert to Mesh.

Hope this helps.

Stephen


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From: Marc
Subject: Re: Geometry in Moray...
Date: 14 Aug 2006 06:25:06
Message: <44e01742@news.povray.org>
"tptorpey" <tpt### [at] gmailcom> a écrit dans le message de news:
web.44df0b59366ff4524f032e0d0@news.povray.org...
> please forgive my embarassing ignorance but I'm (as I stated in my first
> post) a new comer to this software and to 3d modling in general. I don't
> understand how to  create a simple triangle object in this program. there
> are cubes and spheres but nothing triangular to start with.
>
Apologizes if my  question sounded rude.
I just wanted to know if you meant a particular triangle or any one. :-)

My answer was  unclear as well, but see Stephen's


Marc


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From: Lutz Kretzschmar
Subject: Re: Geometry in Moray...
Date: 15 Aug 2006 15:34:45
Message: <jlp3e21omj0h89rnf178f744a2vtf3jgnj@4ax.com>
Hi tptorpey, you recently wrote in moray.win:

> please forgive my embarassing ignorance but I'm (as I stated in my first
> post) a new comer to this software and to 3d modling in general. I don't
> understand how to  create a simple triangle object in this program. there
> are cubes and spheres but nothing triangular to start with.

Glad to see you made it here :-)

Moray is primarily a Constructive Solid Geometry modeller. Note the
'Solid' part :-) A triangle is not solid and so that's why some of the
suggestions (including mine) mentioned a translational sweep, which is
kind of a three dimensional triangle. Well, it starts out as a
quadrilateral, but if you delete one of the control points, it'll be a
triangle.

That said, you can work with a single triangle in the mesh editor.
Best way to do that is this:
Create > Plane
Edit > Convert To Mesh
Click on Edit tab at the top of the right sidebar
Go to Edge mode (press D)
Select any edge by Shift-dragging around a blue dot in the middle of
the edge.
Click on Split (under Edge operations), or Press S
Switch for Face mode (press F)
Shift-Select (hold Shift while clicking on them) the two smaller
triangles
Press Delete
Answer Yes to deleting the orphaned vertices.
Voila, triangle.

I realize this is a bit convoluted, just to get a triangle, but as I
mentioned Moray's modelling paradigm is not primarily based on a
triangle/mesh modeller.

Cheers,

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


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