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void pmpd3d_iCylinder_i(t_pmpd3d *x, int i, t_float xc, t_float yc, t_float zc, t_float a, t_float b, t_float c, t_float d, t_float R, t_float K, t_float power, t_float Kt, t_float powert, t_float Rmin, t_float Rmax)
{
t_float profondeur, rayon, Xb, Yb, Zb, Xt, Yt, Zt, tmp;
profondeur = a * x->mass[i].posX + b * x->mass[i].posY + c * x->mass[i].posZ - d;
Xb = x->mass[i].posX -xc - profondeur * a;
Yb = x->mass[i].posY -yc - profondeur * b;
Zb = x->mass[i].posZ -zc - profondeur * c;
rayon = sqrt ( sqr(Xb) + sqr(Yb) + sqr(Zb) );
if (rayon != 0)
{
Xb /= rayon; // normalisation
Yb /= rayon;
Zb /= rayon;
}
else
{
Xb = 0; // normalisation
Yb = 0;
Zb = 0;
}
Xt = b*Zb - c*Yb; // vecteur tengentiel au cercle
Yt = c*Xb - a*Zb;
Zt = a*Yb - b*Xb;
// Xb, Yb, Zb : vecteur unitaire normal au cercle
// Xt, Yt, Zt : vecteur unitaire tengent au cercle
// rayon : distance au centre.
if ( ((rayon>Rmin) || (Rmin<0)) && ((rayon<Rmax) || (Rmax<0)) )
{
rayon -= R;
tmp = pow(K * R, power);
x->mass[i].forceX += Xb * tmp;
x->mass[i].forceY += Yb * tmp;
x->mass[i].forceZ += Zb * tmp;
tmp = pow(Kt * R, powert);
x->mass[i].forceX += Xt * tmp;
x->mass[i].forceY += Yt * tmp;
x->mass[i].forceZ += Zt * tmp;
}
}
void pmpd3d_iCylinder(t_pmpd3d *x, t_symbol *s, int argc, t_atom *argv)
{
// Argument :
// 0 : mass to apply this interactor
// 1,2,3 : XYZ : center vector of the cylinder
// 4,5,6 : XYZ : center point of the cylinder
// 7 : cylinder radius
// 8 : K
// [9] : power of the force
// [10] : Kt
// [11] : power of the force tengential force
// [12] : min radium of the interactor
// [13] : max radium of the interactor
t_float xc, yc, zc, a, b, c, d, r, K, Kt, power, powert, tmp, Rmin, Rmax;
t_int i;
a = atom_getfloatarg(1, argc, argv);
b = atom_getfloatarg(2, argc, argv);
c = atom_getfloatarg(3, argc, argv);
tmp = sqrt (a*a + b*b + c*c);
if (tmp != 0)
{
a /= tmp;
b /= tmp;
c /= tmp;
}
else
{
a=1;
b=0;
c=0;
}
xc = atom_getfloatarg(4, argc, argv);
yc = atom_getfloatarg(5, argc, argv);
zc = atom_getfloatarg(6, argc, argv);
d = a * xc + b * yc + c * zc;
r = atom_getfloatarg(7, argc, argv);
K = atom_getfloatarg(8, argc, argv);
power = atom_getfloatarg(9, argc, argv);
if (power == 0) power = 1;
Kt = atom_getfloatarg(10, argc, argv);
powert = atom_getfloatarg(11, argc, argv);
if (powert == 0) power = 1;
Rmin = -1;
Rmax = -1;
if (argc > 12) { Rmin = atom_getfloatarg(12, argc, argv); }
if (argc > 13) { Rmax = atom_getfloatarg(13, argc, argv); }
if (atom_getfloatarg(0,argc,argv) == -1) // all
{
for (i=0; i < x->nb_mass; i++)
{
pmpd3d_iCylinder_i(x, i, xc, yc, zc, a, b, c, d, r, K, power, Kt, powert, Rmin, Rmax);
}
}
else if (argv[0].a_type == A_FLOAT)
{
pmpd3d_iCylinder_i(x, atom_getfloatarg(0,argc,argv), xc, yc, zc, a, b, c, d, r, K, power, Kt, powert, Rmin, Rmax);
}
else if (argv[0].a_type == A_SYMBOL)
{
for (i=0; i < x->nb_mass; i++)
{
if (atom_getsymbolarg(0,argc,argv) == x->mass[i].Id)
{
pmpd3d_iCylinder_i(x, i, xc, yc, zc, a, b, c, d, r, K, power, Kt, powert, Rmin, Rmax);
}
}
}
}
void pmpd3d_iPlane_i(t_pmpd3d *x, int i, t_float a, t_float b, t_float c, t_float d, t_float K, t_float power)
{
t_float profondeur, force;
profondeur = a * x->mass[i].posX + b * x->mass[i].posY + c * x->mass[i].posZ - d;
if (profondeur < 0)
{
force = K * pow(abs(profondeur), power);
x->mass[i].forceX += a * force;
x->mass[i].forceY += b * force;
x->mass[i].forceZ += c * force;
}
}
void pmpd3d_iPlane(t_pmpd3d *x, t_symbol *s, int argc, t_atom *argv)
{
// Argument :
// 0 : mass to apply this interactor
// 1,2,3 : XYZ : vector perpendicular to the plane
// 4,5,6 : XYZ : one point of the plane
// 7 : K
// 8 : power of the force
// ax+by+cz-d=0
// d est tel que aXcenter +bYcenter + cYcenter = d
t_float a, b, c, d, K, power, tmp;
t_int i;
a = atom_getfloatarg(1, argc, argv);
b = atom_getfloatarg(2, argc, argv);
c = atom_getfloatarg(3, argc, argv);
tmp = sqrt (a*a + b*b + c*c);
if (tmp != 0)
{
a /= tmp;
b /= tmp;
c /= tmp;
}
else
{
a=1;
b=0;
c=0;
}
d = a * atom_getfloatarg(4, argc, argv) + b * atom_getfloatarg(5, argc, argv) + c * atom_getfloatarg(6, argc, argv);
K = atom_getfloatarg(7, argc, argv);
power = atom_getfloatarg(8, argc, argv);
if (power == 0) power = 1;
if (atom_getfloatarg(0,argc,argv) == -1) // all
{
for (i=0; i < x->nb_mass; i++)
{
pmpd3d_iPlane_i(x, i, a, b, c, d, K, power);
}
}
else if (argv[0].a_type == A_FLOAT)
{
pmpd3d_iPlane_i(x,atom_getfloatarg(0,argc,argv), a, b, c, d, K, power);
}
else if (argv[0].a_type == A_SYMBOL)
{
for (i=0; i < x->nb_mass; i++)
{
if (atom_getsymbolarg(0,argc,argv) == x->mass[i].Id)
{
pmpd3d_iPlane_i(x, i, a, b, c, d, K, power);
}
}
}
}
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