void main()
{
time_t t = time(NULL);
double jd0 = julian_date(1272672000);
// 1271474022);
// jd -= 10.0;
double i;
for (i = 0.0; i < 300; i += 0.01) {
double jd = jd0 + i;
double io[3];
get_io_parent_coordsv(jd, io);
double europa[3];
get_europa_parent_coordsv(jd, europa);
double ganymede[3];
get_ganymede_parent_coordsv(jd, ganymede);
double calisto[3];
get_callisto_parent_coordsv(jd, calisto);
double ioy = compute_delta(jd, io);
double europay = compute_delta(jd, europa);
double ganymedey = compute_delta(jd, ganymede);
double calistoy = compute_delta(jd, calisto);
/* printf("%10.10f %10.10f %10.10f\n", earth[0], earth[1], earth[2]); */
/* printf("%10.10f %10.10f %10.10f\n", jupiter[0], jupiter[1], jupiter[2]); */
/* printf("%10.10f %10.10f %10.10f\n", calisto[0], calisto[1], calisto[2]); */
/* printf("A = %10.10f, B = %10.10f, C = %10.10f, y = %10.10f\n", A, B, C, y); */
printf("%10.10f %10.10f %10.10f %10.10f %10.10f \n", jd, ioy, europay, ganymedey, calistoy);
}
// printf("pow(A,2) = %10.10f, B = %10.10f, C = %10.10f, y = %10.10f\n", pow(A,2), (pow(C,2) + pow(A,2) - pow(B,2)) / C, ((pow(C,2) + pow(A,2) - pow(B,2))/(2*C)), y);
/* for (i = 0.0; i < 30; i += 0.01) { */
/* double j = jd + i; */
/* // printf("JD = %f\n", jd); */
/* double xyz1[3]; */
/* double xyz2[3]; */
/* double xyz3[3]; */
/* double xyz4[3]; */
/* GetL1Coor(j, 0, xyz1); */
/* GetL1Coor(j, 1, xyz2); */
/* GetL1Coor(j, 2, xyz3); */
/* GetL1Coor(j, 3, xyz4); */
/* // printf("x: %10.10f, y: %10.10f, z: %10.10f\n", xyz[0], */
/* // xyz[1], xyz[2]); */
/* // printf("%10.10f %10.10f %10.10f %10.10f %10.10f\n", j, -1.0 * xyz1[1], -1.0 * xyz2[1], -1.0 * xyz3[1], -1.0 * xyz4[1]); */
/* printf("%10.10f %10.10f %10.10f %10.10f %10.10f\n", j, -1.0 * xyz1[0], -1.0 * xyz1[1], -1.0 * xyz4[0], -1.0 * xyz4[1]); */
/* } */
}
void pno_criterion_t::compute_limit()
{
//PRX_DEBUG_COLOR("Computing the limit...", PRX_TEXT_BLUE );
//Need to seed \beta with something small.
double lambda = 0.5;
double step = 0.05;
//Then, we need to compute the limit for this beta
double last_deg = compute_delta( lambda );
//Now perform hill climbing until resolution is small
while( step > PRX_ZERO_CHECK )
{
//Get some idea about the neighborhood
double low = compute_delta( lambda - step );
double high = compute_delta( lambda + step );
//PRX_PRINT(": " << low << " " << last_deg << " " << high, PRX_TEXT_LIGHTGRAY );
//Check if we appear to be at a minimum
if( last_deg < low && last_deg < high )
{
//Then, we need to decrease the step size
step /= 1.5;
}
else if( low < high ) //We need to move to smaller beta
{
lambda -= step;
last_deg = low;
}
else if( high < low ) //Need to move to larger beta
{
lambda += step;
last_deg = high;
}
else //We've essentially bottomed out at this point
{
step = 0;
}
//Also slightly degrade the step size a bit so as to ensure it stops.
step -= 0.0001;
if( lambda > 0.5 )
{
lambda = 0.5;
step = 0;
last_deg = compute_delta( lambda );
}
}
//Now, set the limit to the minimum n we found.
beta = lambda*epsilon;
achieved_bound = last_deg;
}
void TBT::append(uint64_t key) {
TBTEntry *ent;
ent = new TBTEntry();
// compute time delay since last key
// the NOW is WHEN this operation is executed
compute_delta( ent );
// normalize ambiguous keycodes
switch( key ) {
case KEY_BACKSPACE_ASCII:
case KEY_BACKSPACE:
case KEY_BACKSPACE_APPLE:
case KEY_BACKSPACE_SOMETIMES:
ent->key = (uint64_t)KEY_BACKSPACE_ASCII;
break;
case KEY_NEWLINE:
case KEY_ENTER:
ent->key = (uint64_t)KEY_ENTER;
break;
default:
ent->key = (uint64_t)key;
}
buffer->append(ent);
}
void aff_percent(double *opt, double *output, int optSize, double gen,
int actual)
{
system("clear");
printf("\nCompleted %d%% from generation %d\n",
(int) (100 - compute_delta(opt, output, optSize) * 100),
(((int) gen > pow(2, (sizeof(int) * 8))) ?
((int) (pow(2, (sizeof(int) * 8)) - 1)) : ((int) gen)));
aff_time((int) (time(0) - actual));
printf("\n");
}
void
utpms_intr(struct uhidev *addr, void *ibuf, unsigned int len)
{
struct utpms_softc *sc = (struct utpms_softc *)addr;
unsigned char *data;
int dx, dy, dz, i, s;
uint32_t buttons;
/* Ignore incomplete data packets. */
if (len != sc->sc_datalen)
return;
data = ibuf;
/* The last byte is 1 if the button is pressed and 0 otherwise. */
buttons = !!data[sc->sc_datalen - 1];
/* Everything below assumes that the sample is reordered. */
reorder_sample(sc, sc->sc_sample, data);
/* Is this the first sample? */
if (!(sc->sc_status & UTPMS_VALID)) {
sc->sc_status |= UTPMS_VALID;
sc->sc_x = sc->sc_y = -1;
sc->sc_x_raw = sc->sc_y_raw = -1;
memcpy(sc->sc_prev, sc->sc_sample, sizeof(sc->sc_prev));
bzero(sc->sc_acc, sizeof(sc->sc_acc));
return;
}
/* Accumulate the sensor change while keeping it nonnegative. */
for (i = 0; i < UTPMS_SENSORS; i++) {
sc->sc_acc[i] +=
(signed char)(sc->sc_sample[i] - sc->sc_prev[i]);
if (sc->sc_acc[i] < 0)
sc->sc_acc[i] = 0;
}
memcpy(sc->sc_prev, sc->sc_sample, sizeof(sc->sc_prev));
/* Compute change. */
dx = dy = dz = 0;
if (!compute_delta(sc, &dx, &dy, &dz, &buttons))
return;
/* Report to wsmouse. */
if ((dx != 0 || dy != 0 || dz != 0 || buttons != sc->sc_buttons) &&
sc->sc_wsmousedev != NULL) {
s = spltty();
wsmouse_input(sc->sc_wsmousedev, buttons, dx, -dy, dz, 0,
WSMOUSE_INPUT_DELTA);
splx(s);
}
sc->sc_buttons = buttons;
}
static int
set (void *vstate, gsl_multiroot_function * func, gsl_vector * x, gsl_vector * f, gsl_vector * dx, int scale)
{
hybrid_state_t *state = (hybrid_state_t *) vstate;
gsl_matrix *J = state->J;
gsl_matrix *q = state->q;
gsl_matrix *r = state->r;
gsl_vector *tau = state->tau;
gsl_vector *diag = state->diag;
GSL_MULTIROOT_FN_EVAL (func, x, f);
gsl_multiroot_fdjacobian (func, x, f, GSL_SQRT_DBL_EPSILON, J) ;
state->iter = 1;
state->fnorm = enorm (f);
state->ncfail = 0;
state->ncsuc = 0;
state->nslow1 = 0;
state->nslow2 = 0;
gsl_vector_set_all (dx, 0.0);
/* Store column norms in diag */
if (scale)
compute_diag (J, diag);
else
gsl_vector_set_all (diag, 1.0);
/* Set delta to factor |D x| or to factor if |D x| is zero */
state->delta = compute_delta (diag, x);
/* Factorize J into QR decomposition */
gsl_linalg_QR_decomp (J, tau);
gsl_linalg_QR_unpack (J, tau, q, r);
return GSL_SUCCESS;
}
int best_doubtab(double *doubtab[], double *out, int size)
{
double delta[GENSIZE];
double buf;
int i;
int bufi;
i = -1;
while (++i < GENSIZE)
delta[i] = compute_delta(doubtab[i], out, size);
bufi = 0;
buf = delta[bufi];
while (--i >= 0)
if (delta[i] < buf)
{
buf = delta[i];
bufi = i;
}
return (bufi);
}
static int
iterate (void *vstate, gsl_multiroot_function * func, gsl_vector * x, gsl_vector * f, gsl_vector * dx, int scale)
{
hybrid_state_t *state = (hybrid_state_t *) vstate;
const double fnorm = state->fnorm;
gsl_matrix *J = state->J;
gsl_matrix *q = state->q;
gsl_matrix *r = state->r;
gsl_vector *tau = state->tau;
gsl_vector *diag = state->diag;
gsl_vector *qtf = state->qtf;
gsl_vector *x_trial = state->x_trial;
gsl_vector *f_trial = state->f_trial;
gsl_vector *df = state->df;
gsl_vector *qtdf = state->qtdf;
gsl_vector *rdx = state->rdx;
gsl_vector *w = state->w;
gsl_vector *v = state->v;
double prered, actred;
double pnorm, fnorm1, fnorm1p;
double ratio;
double p1 = 0.1, p5 = 0.5, p001 = 0.001, p0001 = 0.0001;
/* Compute qtf = Q^T f */
compute_qtf (q, f, qtf);
/* Compute dogleg step */
dogleg (r, qtf, diag, state->delta, state->newton, state->gradient, dx);
/* Take a trial step */
compute_trial_step (x, dx, state->x_trial);
pnorm = scaled_enorm (diag, dx);
if (state->iter == 1)
{
if (pnorm < state->delta)
{
state->delta = pnorm;
}
}
/* Evaluate function at x + p */
{
int status = GSL_MULTIROOT_FN_EVAL (func, x_trial, f_trial);
if (status != GSL_SUCCESS)
{
return GSL_EBADFUNC;
}
}
/* Set df = f_trial - f */
compute_df (f_trial, f, df);
/* Compute the scaled actual reduction */
fnorm1 = enorm (f_trial);
actred = compute_actual_reduction (fnorm, fnorm1);
/* Compute rdx = R dx */
compute_rdx (r, dx, rdx);
/* Compute the scaled predicted reduction phi1p = |Q^T f + R dx| */
fnorm1p = enorm_sum (qtf, rdx);
prered = compute_predicted_reduction (fnorm, fnorm1p);
/* Compute the ratio of the actual to predicted reduction */
if (prered > 0)
{
ratio = actred / prered;
}
else
{
ratio = 0;
}
/* Update the step bound */
if (ratio < p1)
{
state->ncsuc = 0;
state->ncfail++;
state->delta *= p5;
}
else
{
state->ncfail = 0;
state->ncsuc++;
if (ratio >= p5 || state->ncsuc > 1)
state->delta = GSL_MAX (state->delta, pnorm / p5);
if (fabs (ratio - 1) <= p1)
state->delta = pnorm / p5;
}
/* Test for successful iteration */
if (ratio >= p0001)
{
gsl_vector_memcpy (x, x_trial);
gsl_vector_memcpy (f, f_trial);
state->fnorm = fnorm1;
state->iter++;
}
/* Determine the progress of the iteration */
state->nslow1++;
if (actred >= p001)
state->nslow1 = 0;
if (actred >= p1)
state->nslow2 = 0;
if (state->ncfail == 2)
{
gsl_multiroot_fdjacobian (func, x, f, GSL_SQRT_DBL_EPSILON, J) ;
state->nslow2++;
if (state->iter == 1)
{
if (scale)
compute_diag (J, diag);
state->delta = compute_delta (diag, x);
}
else
{
if (scale)
update_diag (J, diag);
}
/* Factorize J into QR decomposition */
gsl_linalg_QR_decomp (J, tau);
gsl_linalg_QR_unpack (J, tau, q, r);
return GSL_SUCCESS;
}
/* Compute qtdf = Q^T df, w = (Q^T df - R dx)/|dx|, v = D^2 dx/|dx| */
compute_qtf (q, df, qtdf);
compute_wv (qtdf, rdx, dx, diag, pnorm, w, v);
/* Rank-1 update of the jacobian Q'R' = Q(R + w v^T) */
gsl_linalg_QR_update (q, r, w, v);
/* No progress as measured by jacobian evaluations */
if (state->nslow2 == 5)
{
return GSL_ENOPROGJ;
}
/* No progress as measured by function evaluations */
if (state->nslow1 == 10)
{
return GSL_ENOPROG;
}
return GSL_SUCCESS;
}
/** Train the unsupervised SOM network.
*
* The network is initialized with random (non-graduate) values. It is then
* trained with the image pixels (RGB). Once the network is done training the
* centroids of the resulting clusters is returned.
*
* @note The length of the clusters depends on the parameter 'n'. The greatest
* n, the more colors in the clusters, the less posterized the image.
*
* @param[out] res The resulting R, G and B clusters centroids.
* @param[in] imgPixels The original image pixels.
* @param[in] nbPixels The number of pixels of th image (height * width).
* @param[in] nbNeurons The posterization leveldefined by its number of
* neurons.
* @param[in] noEpoch Number of training passes (a too small number of epochs
* won't be enough for the network to correctly know the image but a too high
* value will force the network to modify the wieghts so much that the image
* can actually looks "ugly").
* @param[in] thresh The threshold value. The SOM delta parameter and the
* training rate are dicreasing from one epoch to the next. The treshold value
* set a stop condifition in case the value has fallen under this minimum
* value.
*
* @return SOM_OK if everything goes right or SOM_NO_MEMORY if a memory
* allocation (malloc) fail.
*/
int som_train(float **res, float **imgPixels, unsigned int nbPixels,
int nbNeurons, int noEpoch, float thresh){
int mapWidth = // Map width. This can be calculated from its
(int)sqrt(nbNeurons); // number of neurons as the map is square.
int mapHeight = // Map height. This can be calculated from its
(int)sqrt(nbNeurons); // number of neurons as the map is square.
float delta = INT_MAX; // Start with an almost impossible value
int it = 0; // Count the network iterations
unsigned int pick; // The choosen input pixel
float rad; // Neighbooring radius (keep dicreasing)
float eta; // Learning rate (keep dicreasing)
float pickRGB[3] = {0}; // Contains the choosen input RGB vector
size_t choosen; // Best Matching Unit (BMU)
int choosen_x; // BMU abscissa
int choosen_y; // BMU ordinate
float *neigh = // Neighbooring mask
malloc(sizeof(float) * nbNeurons);
if(neigh == NULL){
return SOM_NO_MEMORY;
}
memset(neigh, 0, nbNeurons);
float *WR = // RED part of the network weight vectors
malloc(sizeof(float) * nbNeurons);
if(WR == NULL){
return SOM_NO_MEMORY;
}
memset(WR, 0, nbNeurons);
float *WG = // GREEN part of the network weight vectors
malloc(sizeof(float) * nbNeurons);
if(WG == NULL){
return SOM_NO_MEMORY;
}
memset(WG, 0, nbNeurons);
float *WB = // BLUE part of the network weight vectors
malloc(sizeof(float) * nbNeurons);
if(WB == NULL){
return SOM_NO_MEMORY;
}
memset(WB, 0, nbNeurons);
float *deltaR = // New RED part of the network weight vectors
malloc(sizeof(float) * nbNeurons);
if(deltaR == NULL){
return SOM_NO_MEMORY;
}
memset(deltaR, 0, nbNeurons);
float *deltaG = // New GREEN part of the network weight vectors
malloc(sizeof(float) * nbNeurons);
if(deltaG == NULL){
return SOM_NO_MEMORY;
}
memset(deltaG, 0, nbNeurons);
float *deltaB = // New BLUE part of the network weight vectors
malloc(sizeof(float) * nbNeurons);
if(deltaB == NULL){
return SOM_NO_MEMORY;
}
memset(deltaB, 0, nbNeurons);
float *absDeltaR = // Absolute value of deltaR
malloc(sizeof(float) * nbNeurons);
if(absDeltaR == NULL){
return SOM_NO_MEMORY;
}
memset(absDeltaR, 0, nbNeurons);
float *absDeltaG = // Absolute value of deltaG
malloc(sizeof(float) * nbNeurons);
if(absDeltaG == NULL){
return SOM_NO_MEMORY;
}
memset(absDeltaG, 0, nbNeurons);
float *absDeltaB = // Absolute value of deltaB
malloc(sizeof(float) * nbNeurons);
if(absDeltaB == NULL){
return SOM_NO_MEMORY;
}
memset(absDeltaB, 0, nbNeurons);
float *dists = // Vectors euclidian distances from input form
malloc(sizeof(float) * nbNeurons);
if(dists == NULL){
return SOM_NO_MEMORY;
}
memset(dists, 0, nbNeurons);
/* Randomly initialize weight vectors */
srand(time(NULL));
random_sample(WR, nbNeurons);
random_sample(WG, nbNeurons);
random_sample(WB, nbNeurons);
while(it < noEpoch && delta >= thresh){
/* Randomly choose an input form */
pick = random_uint(nbPixels);
pickRGB[0] = imgPixels[pick][0];
pickRGB[1] = imgPixels[pick][1];
pickRGB[2] = imgPixels[pick][2];
/* Compute every vectors euclidian distance from the input form */
euclidian(dists, nbNeurons, WR, WG, WB, pickRGB);
/* Determine the BMU */
choosen = arr_min_idx(dists, nbNeurons);
choosen_x = (int)choosen % mapWidth;
choosen_y = choosen / mapHeight;
/* Compute the new neighbooring radius */
rad = som_radius(it, noEpoch, mapWidth, mapHeight);
/* Find the BMU neighboors */
som_neighbourhood(neigh, choosen_x, choosen_y, rad, mapWidth,
mapHeight);
/* Compute the new learning rate */
eta = som_learning_rate(it, noEpoch);
/* Compute new value of the network weight vectors */
compute_delta(deltaR, eta, neigh, nbNeurons, pickRGB[0], WR);
compute_delta(deltaG, eta, neigh, nbNeurons, pickRGB[1], WG);
compute_delta(deltaB, eta, neigh, nbNeurons, pickRGB[2], WB);
/* Update the network weight vectors values */
arr_add(WR, deltaR, nbNeurons);
arr_add(WG, deltaG, nbNeurons);
arr_add(WB, deltaB, nbNeurons);
arr_abs(absDeltaR, deltaR, nbNeurons);
arr_abs(absDeltaG, deltaG, nbNeurons);
arr_abs(absDeltaB, deltaB, nbNeurons);
delta = arr_sum(absDeltaR, nbNeurons) +
arr_sum(absDeltaG, nbNeurons) +
arr_sum(absDeltaB, nbNeurons);
it++;
}
res[0] = WR;
res[1] = WG;
res[2] = WB;
free(dists);
free(deltaR);
free(deltaG);
free(deltaB);
free(absDeltaR);
free(absDeltaG);
free(absDeltaB);
free(neigh);
return SOM_OK;
}
static int
set (void *vstate, gsl_multifit_function_fdf * fdf, gsl_vector * x, gsl_vector * f, gsl_matrix * J, gsl_vector * dx, int scale)
{
lmder_state_t *state = (lmder_state_t *) vstate;
gsl_matrix *r = state->r;
gsl_vector *tau = state->tau;
gsl_vector *diag = state->diag;
gsl_vector *work1 = state->work1;
gsl_permutation *perm = state->perm;
int signum;
/* Evaluate function at x */
/* return immediately if evaluation raised error */
{
int status = GSL_MULTIFIT_FN_EVAL_F_DF (fdf, x, f, J);
if (status)
return status;
}
state->par = 0;
state->iter = 1;
state->fnorm = enorm (f);
gsl_vector_set_all (dx, 0.0);
/* store column norms in diag */
if (scale)
{
compute_diag (J, diag);
}
else
{
gsl_vector_set_all (diag, 1.0);
}
/* set delta to 100 |D x| or to 100 if |D x| is zero */
state->xnorm = scaled_enorm (diag, x);
state->delta = compute_delta (diag, x);
/* Factorize J into QR decomposition */
gsl_matrix_memcpy (r, J);
gsl_linalg_QRPT_decomp (r, tau, perm, &signum, work1);
gsl_vector_set_zero (state->rptdx);
gsl_vector_set_zero (state->w);
/* Zero the trial vector, as in the alloc function */
gsl_vector_set_zero (state->f_trial);
#ifdef DEBUG
printf("r = "); gsl_matrix_fprintf(stdout, r, "%g");
printf("perm = "); gsl_permutation_fprintf(stdout, perm, "%d");
printf("tau = "); gsl_vector_fprintf(stdout, tau, "%g");
#endif
return GSL_SUCCESS;
}
