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Simon Lemieux <Rei### [at] sympatico ca> wrote:
> PS: does the 3.5 has the isofunctions?
What are isofunctions?
--
#macro M(A,N,D,L)plane{-z,-9pigment{mandel L*9translate N color_map{[0rgb x]
[1rgb 9]}scale<D,D*3D>*1e3}rotate y*A*8}#end M(-3<1.206434.28623>70,7)M(
-1<.7438.1795>1,20)M(1<.77595.13699>30,20)M(3<.75923.07145>80,99)// - Warp -
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> What are isofunctions?
Frankly, I have no idea... yet...!
But I shall discover soon!
--
"Neuromancer," the boy said. "The lane to the land of the
dead. Where you are, my friend. I call up the dead. But no,
my friend, I am the dead, and their land." (William Gibson)
-- Simon Lemieux (Rei### [at] Sympatico ca)
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Simon Lemieux <Rei### [at] sympatico ca> wrote:
>> What are isofunctions?
> Frankly, I have no idea... yet...!
> But I shall discover soon!
I know functions and isosurfaces, but I don't know what are isofunctions.
--
#macro M(A,N,D,L)plane{-z,-9pigment{mandel L*9translate N color_map{[0rgb x]
[1rgb 9]}scale<D,D*3D>*1e3}rotate y*A*8}#end M(-3<1.206434.28623>70,7)M(
-1<.7438.1795>1,20)M(1<.77595.13699>30,20)M(3<.75923.07145>80,99)// - Warp -
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"Warp" <war### [at] tag povray org> wrote in message
news:3cee93af@news.povray.org...
>
> I know functions and isosurfaces, but I don't know what are
isofunctions.
>
Don't worry about it - they're for advanced users.
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Tom Melly <tom### [at] tomandlu co uk> wrote:
>> I know functions and isosurfaces, but I don't know what are
> isofunctions.
> Don't worry about it - they're for advanced users.
Could you explain it to a newuser like me?-)
--
#macro M(A,N,D,L)plane{-z,-9pigment{mandel L*9translate N color_map{[0rgb x]
[1rgb 9]}scale<D,D*3D>*1e3}rotate y*A*8}#end M(-3<1.206434.28623>70,7)M(
-1<.7438.1795>1,20)M(1<.77595.13699>30,20)M(3<.75923.07145>80,99)// - Warp -
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Warp wrote:
>
> Tom Melly <tom### [at] tomandlu co uk> wrote:
> >> I know functions and isosurfaces, but I don't know what are
> > isofunctions.
>
> > Don't worry about it - they're for advanced users.
>
> Could you explain it to a newuser like me?-)
I doubt that's possible...
--
Ken Tyler
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On 25 May 2002 16:31:53 -0400, Warp <war### [at] tag povray org> wrote:
> > > I know functions and isosurfaces, but I don't know what are
> > isofunctions.
>
> > Don't worry about it - they're for advanced users.
>
> Could you explain it to a newuser like me?-)
They must be functions after standarization :-)
ABX
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> >> What are isofunctions?
>
> > Frankly, I have no idea... yet...!
>
> > But I shall discover soon!
>
> I know functions and isosurfaces, but I don't know what are isofunctions.
Hehe, pardon, my newbieness or shall I say my
too-long-since-my-last-ray-traceness... I did mix these two up, I was
talking about isosurfaces which seems to be the kind of abstract
mathematical objects made for me!
Thanks,
Simon
--
"Neuromancer," the boy said. "The lane to the land of the
dead. Where you are, my friend. I call up the dead. But no,
my friend, I am the dead, and their land." (William Gibson)
-- Simon Lemieux (Rei### [at] Sympatico ca)
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Simon Lemieux <Rei### [at] sympatico ca> wrote:
>> I know functions and isosurfaces, but I don't know what are isofunctions.
> Hehe, pardon, my newbieness or shall I say my
> too-long-since-my-last-ray-traceness... I did mix these two up, I was
> talking about isosurfaces which seems to be the kind of abstract
> mathematical objects made for me!
An isosurface is an equipotential surface, that is, it consists of all
the points in space where the value of the given function is a given constant
(usually, but not necessarily, 0).
A similar entity is an isobar. Isobars are 2D lines in a geographic map.
The line consists of all the points where air pressure is the same (a given
constant value).
--
#macro M(A,N,D,L)plane{-z,-9pigment{mandel L*9translate N color_map{[0rgb x]
[1rgb 9]}scale<D,D*3D>*1e3}rotate y*A*8}#end M(-3<1.206434.28623>70,7)M(
-1<.7438.1795>1,20)M(1<.77595.13699>30,20)M(3<.75923.07145>80,99)// - Warp -
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On 25 May 2002 16:31:53 -0400, Warp <war### [at] tag povray org> wrote:
> Could you explain it to a newuser like me?-)
Sure. They are functions that return the same value. It's just a geek
name for declaring a float constant, really.
Here's an example:
isofunction theAnswer(x,y,z) = 42;
Peter Popov ICQ : 15002700
Personal e-mail : pet### [at] vip bg
TAG e-mail : pet### [at] tag povray org
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