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/*
* iemmatrix
*
* objects for manipulating simple matrices
* mostly refering to matlab/octave matrix functions
*
* Copyright (c) IOhannes m zmölnig, forum::für::umläute
* IEM, Graz, Austria
*
* For information on usage and redistribution, and for a DISCLAIMER OF ALL
* WARRANTIES, see the file, "LICENSE.txt," in this distribution.
*
*/
#include "iemmatrix.h"
/* mtx_trace */
static t_class *mtx_trace_class;
typedef struct _mtx_trace
{
t_object x_obj;
t_float trace;
} t_mtx_trace;
static void mtx_trace_bang(t_mtx_trace *x)
{
outlet_float(x->x_obj.ob_outlet, x->trace);
}
static void mtx_trace_matrix(t_mtx_trace *x, t_symbol *s, int argc, t_atom *argv)
{
int row=atom_getfloat(argv++);
int col=atom_getfloat(argv++);
int length=(col<row)?col:row;
t_float trace = 0;
if(row*col>argc-2)post("mtx_trace: sparse matrices not yet supported : use \"mtx_check\"");
else while(length--)trace+=atom_getfloat(argv+length*(col+1));
x->trace=trace;
mtx_trace_bang(x);
}
static void *mtx_trace_new(t_symbol *s, int argc, t_atom *argv)
{
t_mtx_trace *x = (t_mtx_trace *)pd_new(mtx_trace_class);
outlet_new(&x->x_obj, 0);
x->trace=0;
return (x);
}
void mtx_trace_setup(void)
{
mtx_trace_class = class_new(gensym("mtx_trace"), (t_newmethod)mtx_trace_new,
0, sizeof(t_mtx_trace), 0, A_GIMME, 0);
class_addbang (mtx_trace_class, mtx_trace_bang);
class_addmethod(mtx_trace_class, (t_method)mtx_trace_matrix, gensym("matrix"), A_GIMME, 0);
}
void iemtx_trace_setup(void)
{
mtx_trace_setup();
}
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