POV-Ray : Newsgroups : povray.general : re Lissajous figures : Re: re Lissajous figures Server Time
16 Nov 2024 09:19:30 EST (-0500)
  Re: re Lissajous figures  
From: mick
Date: 6 Sep 1998 07:55:31
Message: <01bdd984$d96928e0$8a46a8c2@wphnvffu>
Whats the t stand for?
mick 

Ken <tyl### [at] pacbellnet> wrote in article
<35F2687A.9409128B@pacbell.net>...
> Here is a string that generates a figure eight plucked from
> an old o-scope manual.
> 
> The equation:
> x=sin(b t+c);y=sin t   {0,2p}   {b:2}   {c:p}
> 
> The ; separate the parametric equations
> The first {} with the comma is the range.
> The second and third {} with the colon set variables b and c
> p = pi
> 
> How would this be plugged into Peters code ?
> 
> Ken
> 
> mick wrote:
> 
> > Great little utility Peter
> >
> > Took the liberty of abusing it
> >
> > When I was a kid I remember feeding two signal generators into an
> > oscilloscope
> >
> > So I modified yor code to do that
> >
> > Add
> > #declare coeff2_X = ?; // where ? is any number multiples of coeff_X
work
> > best
> > and add
> >
> > + sin(2*pi*(dummy+phase_X)*coeff2_X),
> >
> > to
> >
> > <sin(2*pi*(dummy+phase_X)*coeff_X)
> >
> > to get
> >
> > <sin(2*pi*(dummy+phase_X)*coeff_X) +
sin(2*pi*(dummy+phase_X)*coeff2_X),
> >
> > Gives some amazing patterns
> >
> > Have Fun
> >
> > Mick Hazelgrove
> 
> 
> 
>


Post a reply to this message

Copyright 2003-2023 Persistence of Vision Raytracer Pty. Ltd.