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I had no time to search algorithm for distribution points on elipse
therefore I quickly prepare some method to find them.
Perhaps it can be useful for somebody for example in
camera movement, with oval buildings or with some abstract creation.
Perhaps it can be extended with other shapes.
images -> p.b.i (for nseg=4,15,50 ~ 82,6 KB)
source -> p.b.s-f
ABX
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Attachments:
Download 'aprox04.jpg' (31 KB)
Download 'aprox15.jpg' (28 KB)
Download 'aprox50.jpg' (25 KB)
Preview of image 'aprox04.jpg'
Preview of image 'aprox15.jpg'
Preview of image 'aprox50.jpg'
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There is an easier way to do an ellipse:
#declare majorVector = vnormalize(<1,0,0>)
#declare minorVector = vnormalize(<1,0.1,0>)
#declare majorRadius = 2;
#declare minorRadius = 1;
#declare CenterP = <0,0,0>;
#declare camT = 0;
#while ( camT < 1 ) // Goes from zero to one
#declare thisT = camT * 2 * pi;
#declare camPos = CenterP + (cos(thisT)*majorVector*majorRadius) +
(sin(thisT)*minorVector*minorRadius);
sphere { camPos 0.1 pigment { rgb 1 } finish { phong 1 } }
#declare camT = camT + 0.1;
#end
----
Well, maybe not so easy. What other shapes were you interested in?
Josh
Wlodzimierz ABX Skiba wrote:
> I had no time to search algorithm for distribution points on elipse
> therefore I quickly prepare some method to find them.
>
> Perhaps it can be useful for somebody for example in
> camera movement, with oval buildings or with some abstract creation.
>
> Perhaps it can be extended with other shapes.
>
> images -> p.b.i (for nseg=4,15,50 ~ 82,6 KB)
> source -> p.b.s-f
>
> ABX
>
> [Image]
>
> [Image]
>
> [Image]
--
Josh English -- Lexiphanic Lethomaniac
eng### [at] spiritonecom
The POV-Ray Cyclopedia http://www.spiritone.com/~english/cyclopedia/
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can your shape be animated? what i am interested in is an oval or
circle (preferably both) that can start as a point and then grow in all
directions of the plane it is on. i want to use it along the outer edge
of an expanding torus. your object would allow placement of other
objects along that edge wouldn't it?
Wlodzimierz ABX Skiba wrote:
>
> I had no time to search algorithm for distribution points on elipse
> therefore I quickly prepare some method to find them.
>
> Perhaps it can be useful for somebody for example in
> camera movement, with oval buildings or with some abstract creation.
>
> Perhaps it can be extended with other shapes.
>
> images -> p.b.i (for nseg=4,15,50 ~ 82,6 KB)
> source -> p.b.s-f
>
> ABX
>
> [Image]
>
> [Image]
>
> [Image]
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"Josh English" <eng### [at] spiritonecom> wrote :
>
> There is an easier way to do an ellipse:
I wondered about that too. There must be something else to his procedure
that he is not telling us.
--
I get paid to do -anything- while connected to the internet.
Please use my referral id to find out more
http://www.getpaid4.com/?billdewitt
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"Josh English" wrote:
> There is an easier way to do an ellipse:
ABX's method distributes the spheres *evenly* along the ellipse.
Greetings,
Rune
--
Updated July 10: http://rsj.mobilixnet.dk
3D images, include files, stereograms, tutorials,
The POV Desktop Theme, The POV-Ray Logo Contest,
music, 350+ raytracing jokes, and much more!
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"Rune" <run### [at] inamecom> wrote in message
news:3978e579@news.povray.org...
> "Josh English" wrote:
> > There is an easier way to do an ellipse:
>
> ABX's method distributes the spheres *evenly* along the ellipse.
>
Ah... -that- would be different...
--
I get paid to do -anything- while connected to the internet.
Please use my referral id to find out more
http://www.getpaid4.com/?billdewitt
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>
> Ah... -that- would be different...
>
Right, it requires integration if computed exactly.
Disnel
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