code refactorisation, and few new fonctionalities copied from pmpd3d

svn path=/trunk/externals/pmpd/; revision=17073

1 files changed, 1916 insertions, 0 deletions

diff --git a/pmpd2d_tab.c b/pmpd2d_tab.c
new file mode 100644
index 0000000..ebd80de
--- /dev/null
+++ b/pmpd2d_tab.c
@@ -0,0 +1,1916 @@
+void pmpd2d_massesPosT(t_pmpd2d *x, t_symbol *s, int argc, t_atom *argv)
+{
+    int i, j, vecsize;
+    t_garray *a;
+    t_word *vec;
+    
+    if ( (argc==1) && (argv[0].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {
+            int taille_max = x->nb_mass;
+            taille_max = min(taille_max, (vecsize-1)/2);
+            for (i=0; i < taille_max ; i++)
+            {
+                vec[2*i  ].w_float = x->mass[i].posX;
+                vec[2*i+1].w_float = x->mass[i].posY;
+            }
+            garray_redraw(a);
+        }
+    }
+    else 
+    if ( (argc==2) && (argv[0].a_type == A_SYMBOL) && (argv[1].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {    
+            i = 0;
+            j = 0;
+            while ((i < vecsize-1) && (j < x->nb_mass))
+            {
+                if (atom_getsymbolarg(1,argc,argv) == x->mass[j].Id)
+                {
+                    vec[i].w_float = x->mass[j].posX;
+                    i++;
+                    vec[i].w_float = x->mass[j].posY;
+                    i++;
+                }
+                j++;
+            }
+            garray_redraw(a);
+        }
+    }
+}
+
+void pmpd2d_massesSpeedsT(t_pmpd2d *x, t_symbol *s, int argc, t_atom *argv)
+{
+    int i, j, vecsize;
+    t_garray *a;
+    t_word *vec;
+    
+    if ( (argc==1) && (argv[0].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {
+            int taille_max = x->nb_mass;
+            taille_max = min(taille_max, (vecsize-1)/2);
+            for (i=0; i < taille_max ; i++)
+            {
+                vec[2*i  ].w_float = x->mass[i].speedX;
+                vec[2*i+1].w_float = x->mass[i].speedY;
+            }
+            garray_redraw(a);
+        }
+    }
+    else 
+    if ( (argc==2) && (argv[0].a_type == A_SYMBOL) && (argv[1].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {    
+            i = 0;
+            j = 0;
+            while ((i < vecsize-1) && (j < x->nb_mass))
+            {
+                if (atom_getsymbolarg(1,argc,argv) == x->mass[j].Id)
+                {
+                    vec[i].w_float = x->mass[j].speedX;
+                    i++;
+                    vec[i].w_float = x->mass[j].speedY;
+                    i++;
+                }
+                j++;
+            }
+            garray_redraw(a);
+        }
+    }
+}
+
+void pmpd2d_massesForcesT(t_pmpd2d *x, t_symbol *s, int argc, t_atom *argv)
+{
+    int i, j, vecsize;
+    t_garray *a;
+    t_word *vec;
+    
+    if ( (argc==1) && (argv[0].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {
+            int taille_max = x->nb_mass;
+            taille_max = min(taille_max, (vecsize-1)/2);
+            for (i=0; i < taille_max ; i++)
+            {
+                vec[2*i  ].w_float = x->mass[i].forceX;
+                vec[2*i+1].w_float = x->mass[i].forceY;
+            }
+            garray_redraw(a);
+        }
+    }
+    else 
+    if ( (argc==2) && (argv[0].a_type == A_SYMBOL) && (argv[1].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {    
+            i = 0;
+            j = 0;
+            while ((i < vecsize-1) && (j < x->nb_mass))
+            {
+                if (atom_getsymbolarg(1,argc,argv) == x->mass[j].Id)
+                {
+                    vec[i].w_float = x->mass[j].forceX;
+                    i++;
+                    vec[i].w_float = x->mass[j].forceY;
+                    i++;
+                }
+                j++;
+            }
+            garray_redraw(a);
+        }
+    }
+}
+
+void pmpd2d_massesPosXT(t_pmpd2d *x, t_symbol *s, int argc, t_atom *argv)
+{
+    int i, j, vecsize;
+    t_garray *a;
+    t_word *vec;
+    if ( (argc==1) && (argv[0].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {
+            int taille_max = x->nb_mass;
+            taille_max = min(taille_max, vecsize);
+            for (i=0; i < taille_max ; i++)
+            {
+                vec[i].w_float = x->mass[i].posX;
+            }
+            garray_redraw(a);
+        }
+    }
+    else 
+    if ( (argc==2) && (argv[0].a_type == A_SYMBOL) && (argv[1].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {    
+            i = 0;
+            j = 0;
+            while ((i < vecsize) && (j < x->nb_mass))
+            {
+                if (atom_getsymbolarg(1,argc,argv) == x->mass[j].Id)
+                {
+                    vec[i].w_float = x->mass[j].posX;
+                    i++;
+                }
+                j++;
+            }
+            garray_redraw(a);
+        }
+    }
+}
+
+void pmpd2d_massesSpeedsXT(t_pmpd2d *x, t_symbol *s, int argc, t_atom *argv)
+{
+    int i, j, vecsize;
+    t_garray *a;
+    t_word *vec;
+    
+    if ( (argc==1) && (argv[0].a_type == A_SYMBOL) )
+    {        
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {
+            int taille_max = x->nb_mass;
+            taille_max = min(taille_max, vecsize);
+            for (i=0; i < taille_max ; i++)
+            {
+                vec[i].w_float = x->mass[i].speedX;
+            }
+            garray_redraw(a);
+        }
+    }
+    else 
+    if ( (argc==2) && (argv[0].a_type == A_SYMBOL) && (argv[1].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {    
+            i = 0;
+            j = 0;
+            while ((i < vecsize) && (j < x->nb_mass))
+            {
+                if (atom_getsymbolarg(1,argc,argv) == x->mass[j].Id)
+                {
+                    vec[i].w_float = x->mass[j].speedX;
+                    i++;
+                }
+                j++;
+            }
+            garray_redraw(a);
+        }
+    }
+}
+
+void pmpd2d_massesForcesXT(t_pmpd2d *x, t_symbol *s, int argc, t_atom *argv)
+{
+    int i, j, vecsize;
+    t_garray *a;
+    t_word *vec;
+    
+    if ( (argc==1) && (argv[0].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {
+            int taille_max = x->nb_mass;
+            taille_max = min(taille_max, vecsize);
+            for (i=0; i < taille_max ; i++)
+            {
+                vec[i].w_float = x->mass[i].forceX;
+            }
+            garray_redraw(a);
+        }
+    }
+    else 
+    if ( (argc==2) && (argv[0].a_type == A_SYMBOL) && (argv[1].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {    
+            i = 0;
+            j = 0;
+            while ((i < vecsize) && (j < x->nb_mass))
+            {
+                if (atom_getsymbolarg(1,argc,argv) == x->mass[j].Id)
+                {
+                    vec[i].w_float = x->mass[j].forceX;
+                    i++;
+                }
+                j++;
+            }
+            garray_redraw(a);
+        }
+    }
+}
+
+void pmpd2d_massesPosYT(t_pmpd2d *x, t_symbol *s, int argc, t_atom *argv)
+{
+    int i, j, vecsize;
+    t_garray *a;
+    t_word *vec;
+    
+    if ( (argc==1) && (argv[0].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {
+            int taille_max = x->nb_mass;
+            taille_max = min(taille_max, vecsize);
+            for (i=0; i < taille_max ; i++)
+            {
+                vec[i].w_float = x->mass[i].posY;
+            }
+            garray_redraw(a);
+        }
+    }
+    else 
+    if ( (argc==2) && (argv[0].a_type == A_SYMBOL) && (argv[1].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {    
+            i = 0;
+            j = 0;
+            while ((i < vecsize) && (j < x->nb_mass))
+            {
+                if (atom_getsymbolarg(1,argc,argv) == x->mass[j].Id)
+                {
+                    vec[i].w_float = x->mass[j].posY;
+                    i++;
+                }
+                j++;
+            }
+            garray_redraw(a);
+        }
+    }
+}
+
+void pmpd2d_massesSpeedsYT(t_pmpd2d *x, t_symbol *s, int argc, t_atom *argv)
+{
+    int i, j, vecsize;
+    t_garray *a;
+    t_word *vec;
+    
+    if ( (argc==1) && (argv[0].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {
+            int taille_max = x->nb_mass;
+            taille_max = min(taille_max, vecsize);
+            for (i=0; i < taille_max ; i++)
+            {
+                vec[i].w_float = x->mass[i].speedY;
+            }
+            garray_redraw(a);
+        }
+    }
+    else 
+    if ( (argc==2) && (argv[0].a_type == A_SYMBOL) && (argv[1].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {    
+            i = 0;
+            j = 0;
+            while ((i < vecsize) && (j < x->nb_mass))
+            {
+                if (atom_getsymbolarg(1,argc,argv) == x->mass[j].Id)
+                {
+                    vec[i].w_float = x->mass[j].speedY;
+                    i++;
+                }
+                j++;
+            }
+            garray_redraw(a);
+        }
+    }
+}
+
+void pmpd2d_massesForcesYT(t_pmpd2d *x, t_symbol *s, int argc, t_atom *argv)
+{
+    int i, j, vecsize;
+    t_garray *a;
+    t_word *vec;
+    
+    if ( (argc==1) && (argv[0].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {
+            int taille_max = x->nb_mass;
+            taille_max = min(taille_max, vecsize);
+            for (i=0; i < taille_max ; i++)
+            {
+                vec[i].w_float = x->mass[i].forceY;
+            }
+            garray_redraw(a);
+        }
+    }
+    else 
+    if ( (argc==2) && (argv[0].a_type == A_SYMBOL) && (argv[1].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {    
+            i = 0;
+            j = 0;
+            while ((i < vecsize) && (j < x->nb_mass))
+            {
+                if (atom_getsymbolarg(1,argc,argv) == x->mass[j].Id)
+                {
+                    vec[i].w_float = x->mass[j].forceY;
+                    i++;
+                }
+                j++;
+            }
+            garray_redraw(a);
+        }
+    }
+}
+
+// ---------------------------------------------------------------------
+
+void pmpd2d_massesPosNormT(t_pmpd2d *x, t_symbol *s, int argc, t_atom *argv)
+{
+    int i, j, vecsize;
+    t_garray *a;
+    t_word *vec;
+    
+    if ( (argc==1) && (argv[0].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {
+            int taille_max = x->nb_mass;
+            taille_max = min(taille_max, vecsize);
+            for (i=0; i < taille_max ; i++)
+            {
+                vec[i].w_float = sqrt(sqr(x->mass[i].posX)+sqr(x->mass[i].posY));
+            }
+            garray_redraw(a);
+        }
+    }
+    else 
+    if ( (argc==2) && (argv[0].a_type == A_SYMBOL) && (argv[1].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {    
+            i = 0;
+            j = 0;
+            while ((i < vecsize) && (j < x->nb_mass))
+            {
+                if (atom_getsymbolarg(1,argc,argv) == x->mass[j].Id)
+                {
+                    vec[i].w_float = sqrt(sqr(x->mass[j].posX)+sqr(x->mass[j].posY));
+                    i++;
+                }
+                j++;
+            }
+            garray_redraw(a);
+        }
+    }
+}
+
+void pmpd2d_massesSpeedsNormT(t_pmpd2d *x, t_symbol *s, int argc, t_atom *argv)
+{
+
+    int i, j, vecsize;
+    t_garray *a;
+    t_word *vec;
+    
+    if ( (argc==1) && (argv[0].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {
+            int taille_max = x->nb_mass;
+            taille_max = min(taille_max, vecsize);
+            for (i=0; i < taille_max ; i++)
+            {
+                vec[i].w_float = sqrt(sqr(x->mass[i].speedX)+sqr(x->mass[i].speedY));
+            }
+            garray_redraw(a);
+        }
+    }
+    else 
+    if ( (argc==2) && (argv[0].a_type == A_SYMBOL) && (argv[1].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {    
+            i = 0;
+            j = 0;
+            while ((i < vecsize) && (j < x->nb_mass))
+            {
+                if (atom_getsymbolarg(1,argc,argv) == x->mass[j].Id)
+                {
+                    vec[i].w_float = sqrt(sqr(x->mass[j].speedX)+sqr(x->mass[j].speedY));
+                    i++;
+                }
+                j++;
+            }
+            garray_redraw(a);
+        }
+    }
+}
+
+void pmpd2d_massesForcesNormT(t_pmpd2d *x, t_symbol *s, int argc, t_atom *argv)
+{
+    int i, j, vecsize;
+    t_garray *a;
+    t_word *vec;
+    
+    if ( (argc==1) && (argv[0].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {
+            int taille_max = x->nb_mass;
+            taille_max = min(taille_max, vecsize);
+            for (i=0; i < taille_max ; i++)
+            {
+                vec[i].w_float = sqrt(sqr(x->mass[i].forceX)+sqr(x->mass[i].forceY));
+            }
+            garray_redraw(a);
+        }
+    }
+    else 
+    if ( (argc==2) && (argv[0].a_type == A_SYMBOL) && (argv[1].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {    
+            i = 0;
+            j = 0;
+            while ((i < vecsize) && (j < x->nb_mass))
+            {
+                if (atom_getsymbolarg(1,argc,argv) == x->mass[j].Id)
+                {
+                    vec[i].w_float = sqrt(sqr(x->mass[j].forceX)+sqr(x->mass[j].forceY));
+                    i++;
+                }
+                j++;
+            }
+            garray_redraw(a);
+        }
+    }
+}
+// ---------------------------------------------------------------------
+
+void pmpd2d_linksPosT(t_pmpd2d *x, t_symbol *s, int argc, t_atom *argv)
+{
+    int i, j, vecsize;
+    t_garray *a;
+    t_word *vec;
+    
+    if ( (argc==1) && (argv[0].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {
+            int taille_max = x->nb_link;
+            taille_max = min(taille_max, (vecsize-2)/2);
+            for (i=0; i < taille_max ; i++)
+            {
+                vec[2*i  ].w_float = (x->link[i].mass2->posX + x->link[i].mass1->posX)/2;
+                vec[2*i+1].w_float = (x->link[i].mass2->posY + x->link[i].mass1->posY)/2;
+            }
+            garray_redraw(a);
+        }
+    }
+    else 
+    if ( (argc==2) && (argv[0].a_type == A_SYMBOL) && (argv[1].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {    
+            i = 0;
+            j = 0;
+            while ((i < vecsize-2) && (j < x->nb_link))
+            {
+                if (atom_getsymbolarg(1,argc,argv) == x->link[j].Id)
+                {
+                    vec[i].w_float = (x->link[j].mass2->posX + x->link[j].mass1->posX)/2;
+                    i++;
+                    vec[i].w_float = (x->link[j].mass2->posY + x->link[j].mass1->posY)/2;
+                    i++;
+                }
+                j++;
+            }
+            garray_redraw(a);
+        }
+    }
+}
+
+void pmpd2d_linksLengthT(t_pmpd2d *x, t_symbol *s, int argc, t_atom *argv)
+{
+    int i, j, vecsize;
+    t_garray *a;
+    t_word *vec;
+    
+    if ( (argc==1) && (argv[0].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {
+            int taille_max = x->nb_link;
+            taille_max = min(taille_max, (vecsize-2)/2);
+            for (i=0; i < taille_max ; i++)
+            {
+                vec[2*i  ].w_float = x->link[i].mass2->posX - x->link[i].mass1->posX;
+                vec[2*i+1].w_float = x->link[i].mass2->posY - x->link[i].mass1->posY;
+            }
+            garray_redraw(a);
+        }
+    }
+    else 
+    if ( (argc==2) && (argv[0].a_type == A_SYMBOL) && (argv[1].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {    
+            i = 0;
+            j = 0;
+            while ((i < vecsize-2) && (j < x->nb_link))
+            {
+                if (atom_getsymbolarg(1,argc,argv) == x->link[j].Id)
+                {
+                    vec[i].w_float = x->link[j].mass2->posX + x->link[j].mass1->posX;
+                    i++;
+                    vec[i].w_float = x->link[j].mass2->posY + x->link[j].mass1->posY;
+                    i++;
+                }
+                j++;
+            }
+            garray_redraw(a);
+        }
+    }
+}
+
+void pmpd2d_linksPosSpeedT(t_pmpd2d *x, t_symbol *s, int argc, t_atom *argv)
+{
+    int i, j, vecsize;
+    t_garray *a;
+    t_word *vec;
+    
+    if ( (argc==1) && (argv[0].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {
+            int taille_max = x->nb_link;
+            taille_max = min(taille_max, (vecsize-2)/2);
+            for (i=0; i < taille_max ; i++)
+            {
+                vec[2*i  ].w_float = (x->link[i].mass2->speedX + x->link[i].mass1->speedX)/2;
+                vec[2*i+1].w_float = (x->link[i].mass2->speedY + x->link[i].mass1->speedY)/2;
+            }
+            garray_redraw(a);
+        }
+    }
+    else 
+    if ( (argc==2) && (argv[0].a_type == A_SYMBOL) && (argv[1].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {    
+            i = 0;
+            j = 0;
+            while ((i < vecsize-2) && (j < x->nb_link))
+            {
+                if (atom_getsymbolarg(1,argc,argv) == x->link[j].Id)
+                {
+                    vec[i].w_float = (x->link[j].mass2->speedX + x->link[j].mass1->speedX)/2;
+                    i++;
+                    vec[i].w_float = (x->link[j].mass2->speedY + x->link[j].mass1->speedY)/2;
+                    i++;
+                }
+                j++;
+            }
+            garray_redraw(a);
+        }
+    }
+}
+
+void pmpd2d_linksLengthSpeedT(t_pmpd2d *x, t_symbol *s, int argc, t_atom *argv)
+{
+    int i, j, vecsize;
+    t_garray *a;
+    t_word *vec;
+    
+    if ( (argc==1) && (argv[0].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {
+            int taille_max = x->nb_link;
+            taille_max = min(taille_max, (vecsize-2)/2);
+            for (i=0; i < taille_max ; i++)
+            {
+                vec[2*i  ].w_float = x->link[i].mass2->speedX - x->link[i].mass1->speedX;
+                vec[2*i+1].w_float = x->link[i].mass2->speedY - x->link[i].mass1->speedY;
+            }
+            garray_redraw(a);
+        }
+    }
+    else 
+    if ( (argc==2) && (argv[0].a_type == A_SYMBOL) && (argv[1].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {    
+            i = 0;
+            j = 0;
+            while ((i < vecsize-2) && (j < x->nb_link))
+            {
+                if (atom_getsymbolarg(1,argc,argv) == x->link[j].Id)
+                {
+                    vec[i].w_float = x->link[j].mass2->speedX + x->link[j].mass1->speedX;
+                    i++;
+                    vec[i].w_float = x->link[j].mass2->speedY + x->link[j].mass1->speedY;
+                    i++;
+                }
+                j++;
+            }
+            garray_redraw(a);
+        }
+    }
+}
+
+void pmpd2d_linksPosXT(t_pmpd2d *x, t_symbol *s, int argc, t_atom *argv)
+{
+    int i, j, vecsize;
+    t_garray *a;
+    t_word *vec;
+    
+    if ( (argc==1) && (argv[0].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {
+            int taille_max = x->nb_link;
+            taille_max = min(taille_max, vecsize);
+            for (i=0; i < taille_max ; i++)
+            {
+                vec[i].w_float = (x->link[i].mass1->posX + x->link[i].mass2->posX)/2;
+            }
+            garray_redraw(a);
+        }
+    }
+    else 
+    if ( (argc==2) && (argv[0].a_type == A_SYMBOL) && (argv[1].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {    
+            i = 0;
+            j = 0;
+            while ((i < vecsize) && (j < x->nb_link))
+            {
+                if (atom_getsymbolarg(1,argc,argv) == x->link[j].Id)
+                {
+                    vec[i].w_float = (x->link[j].mass1->posX + x->link[j].mass2->posX)/2;
+                    i++;
+                }
+                j++;
+            }
+            garray_redraw(a);
+        }
+    }
+}
+
+void pmpd2d_linksLengthXT(t_pmpd2d *x, t_symbol *s, int argc, t_atom *argv)
+{
+    int i, j, vecsize;
+    t_garray *a;
+    t_word *vec;
+    
+    if ( (argc==1) && (argv[0].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {
+            int taille_max = x->nb_link;
+            taille_max = min(taille_max, vecsize);
+            for (i=0; i < taille_max ; i++)
+            {
+                vec[i].w_float = x->link[i].mass2->posX - x->link[i].mass1->posX;
+            }
+            garray_redraw(a);
+        }
+    }
+    else 
+    if ( (argc==2) && (argv[0].a_type == A_SYMBOL) && (argv[1].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {    
+            i = 0;
+            j = 0;
+            while ((i < vecsize) && (j < x->nb_link))
+            {
+                if (atom_getsymbolarg(1,argc,argv) == x->link[j].Id)
+                {
+                    vec[i].w_float = x->link[j].mass2->posX - x->link[j].mass1->posX;
+                    i++;
+                }
+                j++;
+            }
+            garray_redraw(a);
+        }
+    }
+}
+
+void pmpd2d_linksPosSpeedXT(t_pmpd2d *x, t_symbol *s, int argc, t_atom *argv)
+{
+    int i, j, vecsize;
+    t_garray *a;
+    t_word *vec;
+    
+    if ( (argc==1) && (argv[0].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {
+            int taille_max = x->nb_link;
+            taille_max = min(taille_max, vecsize);
+            for (i=0; i < taille_max ; i++)
+            {
+                vec[i].w_float = (x->link[i].mass1->speedX + x->link[i].mass2->speedX)/2;
+            }
+            garray_redraw(a);
+        }
+    }
+    else 
+    if ( (argc==2) && (argv[0].a_type == A_SYMBOL) && (argv[1].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {    
+            i = 0;
+            j = 0;
+            while ((i < vecsize) && (j < x->nb_link))
+            {
+                if (atom_getsymbolarg(1,argc,argv) == x->link[j].Id)
+                {
+                    vec[i].w_float = (x->link[j].mass1->speedX + x->link[j].mass2->speedX)/2;
+                    i++;
+                }
+                j++;
+            }
+            garray_redraw(a);
+        }
+    }
+}
+
+void pmpd2d_linksLengthSpeedXT(t_pmpd2d *x, t_symbol *s, int argc, t_atom *argv)
+{
+    int i, j, vecsize;
+    t_garray *a;
+    t_word *vec;
+    
+    if ( (argc==1) && (argv[0].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {
+            int taille_max = x->nb_link;
+            taille_max = min(taille_max, vecsize);
+            for (i=0; i < taille_max ; i++)
+            {
+                vec[i].w_float = x->link[i].mass2->speedX - x->link[i].mass1->speedX;
+            }
+            garray_redraw(a);
+        }
+    }
+    else 
+    if ( (argc==2) && (argv[0].a_type == A_SYMBOL) && (argv[1].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {    
+            i = 0;
+            j = 0;
+            while ((i < vecsize) && (j < x->nb_link))
+            {
+                if (atom_getsymbolarg(1,argc,argv) == x->link[j].Id)
+                {
+                    vec[i].w_float = x->link[j].mass2->speedX - x->link[j].mass1->speedX;
+                    i++;
+                }
+                j++;
+            }
+            garray_redraw(a);
+        }
+    }
+}
+
+void pmpd2d_linksPosYT(t_pmpd2d *x, t_symbol *s, int argc, t_atom *argv)
+{
+    int i, j, vecsize;
+    t_garray *a;
+    t_word *vec;
+    
+    if ( (argc==1) && (argv[0].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {
+            int taille_max = x->nb_link;
+            taille_max = min(taille_max, vecsize);
+            for (i=0; i < taille_max ; i++)
+            {
+                vec[i].w_float = (x->link[i].mass1->posY + x->link[i].mass2->posY)/2;
+            }
+            garray_redraw(a);
+        }
+    }
+    else 
+    if ( (argc==2) && (argv[0].a_type == A_SYMBOL) && (argv[1].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {    
+            i = 0;
+            j = 0;
+            while ((i < vecsize) && (j < x->nb_link))
+            {
+                if (atom_getsymbolarg(1,argc,argv) == x->link[j].Id)
+                {
+                    vec[i].w_float = (x->link[j].mass1->posY + x->link[j].mass2->posY)/2;
+                    i++;
+                }
+                j++;
+            }
+            garray_redraw(a);
+        }
+    }
+}
+
+void pmpd2d_linksLengthYT(t_pmpd2d *x, t_symbol *s, int argc, t_atom *argv)
+{
+    int i, j, vecsize;
+    t_garray *a;
+    t_word *vec;
+    
+    if ( (argc==1) && (argv[0].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {
+            int taille_max = x->nb_link;
+            taille_max = min(taille_max, vecsize);
+            for (i=0; i < taille_max ; i++)
+            {
+                vec[i].w_float = x->link[i].mass2->posY - x->link[i].mass1->posY;
+            }
+            garray_redraw(a);
+        }
+    }
+    else 
+    if ( (argc==2) && (argv[0].a_type == A_SYMBOL) && (argv[1].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {    
+            i = 0;
+            j = 0;
+            while ((i < vecsize) && (j < x->nb_link))
+            {
+                if (atom_getsymbolarg(1,argc,argv) == x->link[j].Id)
+                {
+                    vec[i].w_float = x->link[j].mass2->posY - x->link[j].mass1->posY;
+                    i++;
+                }
+                j++;
+            }
+            garray_redraw(a);
+        }
+    }
+}
+
+void pmpd2d_linksPosSpeedYT(t_pmpd2d *x, t_symbol *s, int argc, t_atom *argv)
+{
+    int i, j, vecsize;
+    t_garray *a;
+    t_word *vec;
+    
+    if ( (argc==1) && (argv[0].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {
+            int taille_max = x->nb_link;
+            taille_max = min(taille_max, vecsize);
+            for (i=0; i < taille_max ; i++)
+            {
+                vec[i].w_float = (x->link[i].mass1->speedY + x->link[i].mass2->speedY)/2;
+            }
+            garray_redraw(a);
+        }
+    }
+    else 
+    if ( (argc==2) && (argv[0].a_type == A_SYMBOL) && (argv[1].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {    
+            i = 0;
+            j = 0;
+            while ((i < vecsize) && (j < x->nb_link))
+            {
+                if (atom_getsymbolarg(1,argc,argv) == x->link[j].Id)
+                {
+                    vec[i].w_float = (x->link[j].mass1->speedY + x->link[j].mass2->speedY)/2;
+                    i++;
+                }
+                j++;
+            }
+            garray_redraw(a);
+        }
+    }
+}
+
+void pmpd2d_linksLengthSpeedYT(t_pmpd2d *x, t_symbol *s, int argc, t_atom *argv)
+{
+    int i, j, vecsize;
+    t_garray *a;
+    t_word *vec;
+    
+    if ( (argc==1) && (argv[0].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {
+            int taille_max = x->nb_link;
+            taille_max = min(taille_max, vecsize);
+            for (i=0; i < taille_max ; i++)
+            {
+                vec[i].w_float = x->link[i].mass2->speedY - x->link[i].mass1->speedY;
+            }
+            garray_redraw(a);
+        }
+    }
+    else 
+    if ( (argc==2) && (argv[0].a_type == A_SYMBOL) && (argv[1].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {    
+            i = 0;
+            j = 0;
+            while ((i < vecsize) && (j < x->nb_link))
+            {
+                if (atom_getsymbolarg(1,argc,argv) == x->link[j].Id)
+                {
+                    vec[i].w_float = x->link[j].mass2->speedY - x->link[j].mass1->speedY;
+                    i++;
+                }
+                j++;
+            }
+            garray_redraw(a);
+        }
+    }
+}
+
+// ---------------------------------------------------------------------
+
+void pmpd2d_linksPosNormT(t_pmpd2d *x, t_symbol *s, int argc, t_atom *argv)
+{
+    int i, j, vecsize;
+    t_garray *a;
+    t_word *vec;
+    
+    if ( (argc==1) && (argv[0].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {
+            int taille_max = x->nb_link;
+            taille_max = min(taille_max, vecsize);
+            for (i=0; i < taille_max ; i++)
+            {
+                vec[i].w_float = sqrt( \
+                            sqr((x->link[i].mass1->posX + x->link[i].mass2->posX)/2) + \
+                            sqr((x->link[i].mass1->posY + x->link[i].mass2->posY)/2) );
+            }
+            garray_redraw(a);
+        }
+    }
+    else 
+    if ( (argc==2) && (argv[0].a_type == A_SYMBOL) && (argv[1].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {    
+            i = 0;
+            j = 0;
+            while ((i < vecsize) && (j < x->nb_link))
+            {
+                if (atom_getsymbolarg(1,argc,argv) == x->link[j].Id)
+                {
+                    vec[j].w_float = sqrt( \
+                            sqr((x->link[j].mass1->posX + x->link[j].mass2->posX)/2) + \
+                            sqr((x->link[j].mass1->posY + x->link[j].mass2->posY)/2) );
+                    i++;
+                }
+                j++;
+            }
+            garray_redraw(a);
+        }
+    }
+}
+
+void pmpd2d_linksLengthNormT(t_pmpd2d *x, t_symbol *s, int argc, t_atom *argv)
+{
+    int i, j, vecsize;
+    t_garray *a;
+    t_word *vec;
+    
+    if ( (argc==1) && (argv[0].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {
+            int taille_max = x->nb_link;
+            taille_max = min(taille_max, vecsize);
+            for (i=0; i < taille_max ; i++)
+            {
+                vec[i].w_float = sqrt( \
+                            sqr(x->link[i].mass2->posX - x->link[i].mass1->posX) + \
+                            sqr(x->link[i].mass2->posY - x->link[i].mass1->posY) );
+            }
+            garray_redraw(a);
+        }
+    }
+    else 
+    if ( (argc==2) && (argv[0].a_type == A_SYMBOL) && (argv[1].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {    
+            i = 0;
+            j = 0;
+            while ((i < vecsize) && (j < x->nb_link))
+            {
+                if (atom_getsymbolarg(1,argc,argv) == x->link[j].Id)
+                {
+                    vec[i].w_float = sqrt( \
+                            sqr(x->link[j].mass2->posX - x->link[j].mass1->posX) + \
+                            sqr(x->link[j].mass2->posY - x->link[j].mass1->posY) );
+                    i++;
+                }
+                j++;
+            }
+            garray_redraw(a);
+        }
+    }
+}
+
+void pmpd2d_linksPosSpeedNormT(t_pmpd2d *x, t_symbol *s, int argc, t_atom *argv)
+{
+    int i, j, vecsize;
+    t_garray *a;
+    t_word *vec;
+    
+    if ( (argc==1) && (argv[0].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {
+            int taille_max = x->nb_link;
+            taille_max = min(taille_max, vecsize);
+            for (i=0; i < taille_max ; i++)
+            {
+                vec[i].w_float = sqrt( \
+                            sqr((x->link[i].mass1->speedX + x->link[i].mass2->speedX)/2) + \
+                            sqr((x->link[i].mass1->speedY + x->link[i].mass2->speedY)/2) );
+            }
+            garray_redraw(a);
+        }
+    }
+    else 
+    if ( (argc==2) && (argv[0].a_type == A_SYMBOL) && (argv[1].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {    
+            i = 0;
+            j = 0;
+            while ((i < vecsize) && (j < x->nb_link))
+            {
+                if (atom_getsymbolarg(1,argc,argv) == x->link[j].Id)
+                {
+                    vec[i].w_float = sqrt( \
+                            sqr((x->link[j].mass1->speedX + x->link[j].mass2->speedX)/2) + \
+                            sqr((x->link[j].mass1->speedY + x->link[j].mass2->speedY)/2) );
+                    i++;
+                }
+                j++;
+            }
+            garray_redraw(a);
+        }
+    }
+}
+
+void pmpd2d_linksLengthSpeedNormT(t_pmpd2d *x, t_symbol *s, int argc, t_atom *argv)
+{
+    int i, j, vecsize;
+    t_garray *a;
+    t_word *vec;
+    
+    if ( (argc==1) && (argv[0].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {
+            int taille_max = x->nb_link;
+            taille_max = min(taille_max, vecsize);
+            for (i=0; i < taille_max ; i++)
+            {
+                vec[i].w_float = sqrt( \
+                            sqr(x->link[i].mass2->speedX - x->link[i].mass1->speedX) + \
+                            sqr(x->link[i].mass2->speedY - x->link[i].mass1->speedY) );
+            }
+            garray_redraw(a);
+        }
+    }
+    else 
+    if ( (argc==2) && (argv[0].a_type == A_SYMBOL) && (argv[1].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {    
+            i = 0;
+            j = 0;
+            while ((i < vecsize) && (j < x->nb_link))
+            {
+                if (atom_getsymbolarg(1,argc,argv) == x->link[j].Id)
+                {
+                    vec[i].w_float = sqrt( \
+                            sqr(x->link[j].mass2->speedX - x->link[j].mass1->speedX) + \
+                            sqr(x->link[j].mass2->speedY - x->link[j].mass1->speedY) );
+                    i++;
+                }
+                j++;
+            }
+            garray_redraw(a);
+        }
+    }
+}
+
+// ---------------------------------------------------------------------
+
+
+void pmpd2d_linkEndT(t_pmpd2d *x, t_symbol *s, int argc, t_atom *argv)
+{
+    int i, j, vecsize;
+    t_garray *a;
+    t_word *vec;
+    
+    if ( (argc==1) && (argv[0].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {
+            int taille_max = x->nb_link;
+            taille_max = min(taille_max, (vecsize-3)/4);
+            for (i=0; i < taille_max ; i++)
+            {
+                vec[4*i  ].w_float = x->link[i].mass1->posX;
+                vec[4*i+1].w_float = x->link[i].mass1->posY;
+                vec[4*i+2].w_float = x->link[i].mass2->posX;
+                vec[4*i+3].w_float = x->link[i].mass2->posY;
+            }
+            garray_redraw(a);
+        }
+    }
+    else 
+    if ( (argc==2) && (argv[0].a_type == A_SYMBOL) && (argv[1].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {    
+            i = 0;
+            j = 0;
+            while ((i < vecsize-3) && (j < x->nb_link))
+            {
+                if (atom_getsymbolarg(1,argc,argv) == x->link[j].Id)
+                {
+                    vec[i].w_float = x->link[j].mass1->posX;
+                    i++;
+                    vec[i].w_float = x->link[j].mass1->posY;
+                    i++;
+                    vec[i].w_float = x->link[j].mass2->posX;
+                    i++;
+                    vec[i].w_float = x->link[j].mass2->posY;
+                    i++;
+                }
+                j++;
+            }
+            garray_redraw(a);
+        }
+    }
+}
+
+void pmpd2d_linkEndXT(t_pmpd2d *x, t_symbol *s, int argc, t_atom *argv)
+{
+    int i, j, vecsize;
+    t_garray *a;
+    t_word *vec;
+    
+    if ( (argc==1) && (argv[0].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {
+            int taille_max = x->nb_link;
+            taille_max = min(taille_max, (vecsize-1)/2);
+            for (i=0; i < taille_max ; i++)
+            {
+                vec[2*i  ].w_float = x->link[i].mass1->posX;
+                vec[2*i+1].w_float = x->link[i].mass2->posX;
+            }
+            garray_redraw(a);
+        }
+    }
+    else 
+    if ( (argc==2) && (argv[0].a_type == A_SYMBOL) && (argv[1].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {    
+            i = 0;
+            j = 0;
+            while ((i < vecsize-2) && (j < x->nb_link))
+            {
+                if (atom_getsymbolarg(1,argc,argv) == x->link[j].Id)
+                {
+                    vec[i].w_float = x->link[j].mass1->posX;
+                    i++;
+                    vec[i].w_float = x->link[j].mass2->posX;
+                    i++;
+                }
+                j++;
+            }
+            garray_redraw(a);
+        }
+    }
+}
+
+void pmpd2d_linkEndYT(t_pmpd2d *x, t_symbol *s, int argc, t_atom *argv)
+{
+    int i, j, vecsize;
+    t_garray *a;
+    t_word *vec;
+    
+    if ( (argc==1) && (argv[0].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {
+            int taille_max = x->nb_link;
+            taille_max = min(taille_max, (vecsize-1)/2);
+            for (i=0; i < taille_max ; i++)
+            {
+                vec[2*i  ].w_float = x->link[i].mass1->posY;
+                vec[2*i+1].w_float = x->link[i].mass2->posY;
+            }
+            garray_redraw(a);
+        }
+    }
+    else 
+    if ( (argc==2) && (argv[0].a_type == A_SYMBOL) && (argv[1].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {    
+            i = 0;
+            j = 0;
+            while ((i < vecsize-2) && (j < x->nb_link))
+            {
+                if (atom_getsymbolarg(1,argc,argv) == x->link[j].Id)
+                {
+                    vec[i].w_float = x->link[j].mass1->posY;
+                    i++;
+                    vec[i].w_float = x->link[j].mass2->posY;
+                    i++;
+                }
+                j++;
+            }
+            garray_redraw(a);
+        }
+    }
+}
+
+void pmpd2d_linkEnd1T(t_pmpd2d *x, t_symbol *s, int argc, t_atom *argv)
+{
+    int i, j, vecsize;
+    t_garray *a;
+    t_word *vec;
+    
+    if ( (argc==1) && (argv[0].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {
+            int taille_max = x->nb_link;
+            taille_max = min(taille_max, (vecsize-1)/2);
+            for (i=0; i < taille_max ; i++)
+            {
+                vec[2*i  ].w_float = x->link[i].mass1->posX;
+                vec[2*i+1].w_float = x->link[i].mass1->posY;
+            }
+            garray_redraw(a);
+        }
+    }
+    else 
+    if ( (argc==2) && (argv[0].a_type == A_SYMBOL) && (argv[1].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {    
+            i = 0;
+            j = 0;
+            while ((i < vecsize-2) && (j < x->nb_link))
+            {
+                if (atom_getsymbolarg(1,argc,argv) == x->link[j].Id)
+                {
+                    vec[i].w_float = x->link[j].mass1->posX;
+                    i++;
+                    vec[i].w_float = x->link[j].mass1->posY;
+                    i++;
+                }
+                j++;
+            }
+            garray_redraw(a);
+        }
+    }
+}
+
+void pmpd2d_linkEnd1XT(t_pmpd2d *x, t_symbol *s, int argc, t_atom *argv)
+{
+    int i, j, vecsize;
+    t_garray *a;
+    t_word *vec;
+    
+    if ( (argc==1) && (argv[0].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {
+            int taille_max = x->nb_link;
+            taille_max = min(taille_max, vecsize);
+            for (i=0; i < taille_max ; i++)
+            {
+                vec[i].w_float = x->link[i].mass1->posX;
+            }
+            garray_redraw(a);
+        }
+    }
+    else 
+    if ( (argc==2) && (argv[0].a_type == A_SYMBOL) && (argv[1].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {    
+            i = 0;
+            j = 0;
+            while ((i < vecsize-2) && (j < x->nb_link))
+            {
+                if (atom_getsymbolarg(1,argc,argv) == x->link[j].Id)
+                {
+                    vec[i].w_float = x->link[j].mass1->posX;
+                    i++;
+                }
+                j++;
+            }
+            garray_redraw(a);
+        }
+    }
+}
+
+void pmpd2d_linkEnd1YT(t_pmpd2d *x, t_symbol *s, int argc, t_atom *argv)
+{
+    int i, j, vecsize;
+    t_garray *a;
+    t_word *vec;
+    
+    if ( (argc==1) && (argv[0].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {
+            int taille_max = x->nb_link;
+            taille_max = min(taille_max, vecsize);
+            for (i=0; i < taille_max ; i++)
+            {
+                vec[i].w_float = x->link[i].mass1->posY;
+            }
+            garray_redraw(a);
+        }
+    }
+    else 
+    if ( (argc==2) && (argv[0].a_type == A_SYMBOL) && (argv[1].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {    
+            i = 0;
+            j = 0;
+            while ((i < vecsize-2) && (j < x->nb_link))
+            {
+                if (atom_getsymbolarg(1,argc,argv) == x->link[j].Id)
+                {
+                    vec[i].w_float = x->link[j].mass1->posY;
+                    i++;
+                }
+                j++;
+            }
+            garray_redraw(a);
+        }
+    }
+}
+
+void pmpd2d_linkEnd2T(t_pmpd2d *x, t_symbol *s, int argc, t_atom *argv)
+{
+    int i, j, vecsize;
+    t_garray *a;
+    t_word *vec;
+    
+    if ( (argc==1) && (argv[0].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {
+            int taille_max = x->nb_link;
+            taille_max = min(taille_max, (vecsize-1)/2);
+            for (i=0; i < taille_max ; i++)
+            {
+                vec[2*i  ].w_float = x->link[i].mass2->posX;
+                vec[2*i+1].w_float = x->link[i].mass2->posY;
+            }
+            garray_redraw(a);
+        }
+    }
+    else 
+    if ( (argc==2) && (argv[0].a_type == A_SYMBOL) && (argv[1].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {    
+            i = 0;
+            j = 0;
+            while ((i < vecsize-2) && (j < x->nb_link))
+            {
+                if (atom_getsymbolarg(1,argc,argv) == x->link[j].Id)
+                {
+                    vec[i].w_float = x->link[j].mass2->posX;
+                    i++;
+                    vec[i].w_float = x->link[j].mass2->posY;
+                    i++;
+                }
+                j++;
+            }
+            garray_redraw(a);
+        }
+    }
+}
+
+void pmpd2d_linkEnd2XT(t_pmpd2d *x, t_symbol *s, int argc, t_atom *argv)
+{
+    int i, j, vecsize;
+    t_garray *a;
+    t_word *vec;
+    
+    if ( (argc==1) && (argv[0].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {
+            int taille_max = x->nb_link;
+            taille_max = min(taille_max, vecsize);
+            for (i=0; i < taille_max ; i++)
+            {
+                vec[i].w_float = x->link[i].mass2->posX;
+            }
+            garray_redraw(a);
+        }
+    }
+    else 
+    if ( (argc==2) && (argv[0].a_type == A_SYMBOL) && (argv[1].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {    
+            i = 0;
+            j = 0;
+            while ((i < vecsize-2) && (j < x->nb_link))
+            {
+                if (atom_getsymbolarg(1,argc,argv) == x->link[j].Id)
+                {
+                    vec[i].w_float = x->link[j].mass2->posX;
+                    i++;
+                }
+                j++;
+            }
+            garray_redraw(a);
+        }
+    }
+}
+
+void pmpd2d_linkEnd2YT(t_pmpd2d *x, t_symbol *s, int argc, t_atom *argv)
+{
+    int i, j, vecsize;
+    t_garray *a;
+    t_word *vec;
+    
+    if ( (argc==1) && (argv[0].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {
+            int taille_max = x->nb_link;
+            taille_max = min(taille_max, vecsize);
+            for (i=0; i < taille_max ; i++)
+            {
+                vec[i].w_float = x->link[i].mass2->posY;
+            }
+            garray_redraw(a);
+        }
+    }
+    else 
+    if ( (argc==2) && (argv[0].a_type == A_SYMBOL) && (argv[1].a_type == A_SYMBOL) )
+    {
+        t_symbol *tab_name = atom_getsymbolarg(0, argc, argv);
+        if (!(a = (t_garray *)pd_findbyclass(tab_name, garray_class)))
+            pd_error(x, "%s: no such array", tab_name->s_name);
+        else if (!garray_getfloatwords(a, &vecsize, &vec))
+            pd_error(x, "%s: bad template for tabwrite", tab_name->s_name);
+        else
+        {    
+            i = 0;
+            j = 0;
+            while ((i < vecsize-2) && (j < x->nb_link))
+            {
+                if (atom_getsymbolarg(1,argc,argv) == x->link[j].Id)
+                {
+                    vec[i].w_float = x->link[j].mass2->posY;
+                    i++;
+                }
+                j++;
+            }
+            garray_redraw(a);
+        }
+    }
+}
+