diff options
Diffstat (limited to 'modules/scrollgrid1D~.c')
| -rw-r--r-- | modules/scrollgrid1D~.c | 36 |
1 files changed, 21 insertions, 15 deletions
diff --git a/modules/scrollgrid1D~.c b/modules/scrollgrid1D~.c index bcac7fe..d47bb51 100644 --- a/modules/scrollgrid1D~.c +++ b/modules/scrollgrid1D~.c @@ -21,14 +21,15 @@ /* 1D scroll grid attractor for more information see: - Yalcin M., Ozoguz S., Suykens J.A.K., Vandewalle J., - ``Families of Scroll Grid Attractors'', - International Journal of Bifurcation and Chaos, vol. 12, no. 1, Jan. 2002, pp. 23-41. - - this file implements a digital variant of the method introduced in the paper, - so that it can be used as a parametrizable, bounded chatotic oscillator. - in short it is a switched linear system, with some added hard limiting to - convert unstable oscillations into stable ones. + Yalcin M., Ozoguz S., Suykens J.A.K., Vandewalle J., ``Families of + Scroll Grid Attractors'', International Journal of Bifurcation and + Chaos, vol. 12, no. 1, Jan. 2002, pp. 23-41. + + this file implements a digital variant of the method introduced in + the paper, so that it can be used as a parametrizable, bounded + chatotic oscillator. in short it is a switched linear system, + with some added hard limiting to convert unstable oscillations + into stable ones. */ @@ -108,9 +109,12 @@ static t_int *scrollgrid1D_perform(t_int *w) //post("%f", r1); /* base transform + clipping to prevent blowup */ - x = _sat(0.5f * (state[0] - state[2]), (float)o); /* projection onto axis containing fixed */ - y = _sat(0.5f * state[1], 1.0f); /* the "pure" oscillation axis */ - z = _sat(0.5f * (state[0] + state[2]), 1.0f); /* orthogonal complement of x */ + /* projection onto axis containing fixed */ + x = _sat(0.5f * (state[0] - state[2]), (float)o); + /* the "pure" oscillation axis */ + y = _sat(0.5f * state[1], 1.0f); + /* orthogonal complement of x */ + z = _sat(0.5f * (state[0] + state[2]), 1.0f); /* output */ *outx++ = x; @@ -209,12 +213,14 @@ static void *scrollgrid1D_new(t_floatarg algotype) void scrollgrid1D_tilde_setup(void) { //post("scrollgrid1D~ v0.1"); - scrollgrid1D_class = class_new(gensym("scrollgrid1D~"), (t_newmethod)scrollgrid1D_new, + scrollgrid1D_class = class_new(gensym("scrollgrid1D~"), + (t_newmethod)scrollgrid1D_new, (t_method)scrollgrid1D_free, sizeof(t_scrollgrid1D), 0, A_DEFFLOAT, 0); CLASS_MAINSIGNALIN(scrollgrid1D_class, t_scrollgrid1D, x_f); - class_addmethod(scrollgrid1D_class, (t_method)scrollgrid1D_dsp, gensym("dsp"), 0); - class_addmethod(scrollgrid1D_class, (t_method)scrollgrid1D_reset, gensym("reset"), 0); - + class_addmethod(scrollgrid1D_class, (t_method)scrollgrid1D_dsp, + gensym("dsp"), 0); + class_addmethod(scrollgrid1D_class, (t_method)scrollgrid1D_reset, + gensym("reset"), 0); } |