void
test_field_volume_voids_planar(void)
{
enum { max_size = 66 };
GRand *rng = g_rand_new_with_seed(42);
gsize niter = 100;
for (guint iter = 0; iter < niter; iter++) {
guint xres = g_rand_int_range(rng, 3, max_size);
guint yres = g_rand_int_range(rng, 3, max_size);
gdouble alpha = g_rand_double_range(rng, -5.0, 5.0);
gdouble beta = g_rand_double_range(rng, -5.0, 5.0);
gdouble base = g_rand_double_range(rng, -5.0, 5.0);
GwyField *field = field_make_planar(xres, yres, alpha, beta);
GwyFieldPart fpart = { 1, 1, xres-2, yres-2 };
gdouble volume, volume_expected;
gwy_field_set_xreal(field, xres/sqrt(xres*yres));
gwy_field_set_yreal(field, yres/sqrt(xres*yres));
volume = gwy_field_material_volume(field, &fpart,
NULL, GWY_MASK_IGNORE, FALSE, base);
volume_expected = planar_field_material_volume(field, base, FALSE);
gwy_assert_floatval(volume, volume_expected, 1e-9*fabs(volume_expected));
gwy_field_set_xreal(field, 1.0);
gwy_field_set_yreal(field, 1.0);
volume_expected = planar_field_material_volume(field, base, FALSE);
volume = gwy_field_material_volume(field, &fpart,
NULL, GWY_MASK_IGNORE, FALSE, base);
gwy_assert_floatval(volume, volume_expected, 1e-9*fabs(volume_expected));
g_object_unref(field);
}
g_rand_free(rng);
}
void
test_field_surface_area_planar(void)
{
enum { max_size = 76 };
GRand *rng = g_rand_new_with_seed(42);
gsize niter = 50;
for (guint iter = 0; iter < niter; iter++) {
guint xres = g_rand_int_range(rng, 1, max_size);
guint yres = g_rand_int_range(rng, 1, max_size);
gdouble alpha = g_rand_double_range(rng, -5.0, 5.0);
gdouble beta = g_rand_double_range(rng, -5.0, 5.0);
GwyField *field = field_make_planar(xres, yres, alpha, beta);
gdouble area, area_expected;
gwy_field_set_xreal(field, xres/sqrt(xres*yres));
gwy_field_set_yreal(field, yres/sqrt(xres*yres));
area = gwy_field_surface_area(field, NULL, NULL, GWY_MASK_IGNORE);
area_expected = planar_field_surface_area(field);
g_assert_cmpfloat(fabs(area - area_expected)/area_expected, <=, 1e-9);
gwy_field_set_xreal(field, 1.0);
gwy_field_set_yreal(field, 1.0);
area = gwy_field_surface_area(field, NULL, NULL, GWY_MASK_IGNORE);
area_expected = planar_field_surface_area(field);
g_assert_cmpfloat(fabs(area - area_expected)/area_expected, <=, 1e-9);
g_object_unref(field);
}
g_rand_free(rng);
}
static void _random2_distribution (GPtrArray *points,
AranSolver2d *solver)
{
guint i;
PointAccum *point;
GRand *rand = g_rand_new_with_seed (_random_seed);
point = point_accum_alloc (TRUE, NULL);
for (i=0; i<np; i++)
{
#ifdef VSG_HAVE_MPI
if (i%_flush_interval == 0)
{
aran_solver2d_migrate_flush (solver);
if (i%(_flush_interval*10) == 0)
{
if (_verbose && rk == 0)
g_printerr ("%d: contiguous dist before %dth point\n", rk, i);
aran_solver2d_distribute_contiguous_leaves (solver);
}
}
#endif /* VSG_HAVE_MPI */
point->vector.x = g_rand_double_range (rand, -R, R);;
point->vector.y = g_rand_double_range (rand, -R, R);;
point->density = 1.;
point->accum = 0.;
point->id = i;
if (check) memcpy (&check_points[i], point, sizeof (PointAccum));
if (aran_solver2d_insert_point_local (solver, point))
{
if (i % 10000 == 0 && _verbose)
g_printerr ("%d: insert %dth point\n", rk, i);
point = point_accum_alloc (TRUE, NULL);
}
#ifdef VSG_HAVE_MPI
if (i%(_flush_interval*10) == 0)
{
if (_verbose && rk == 0)
g_printerr ("%d: contiguous dist before %dth point\n", rk, i);
aran_solver2d_distribute_contiguous_leaves (solver);
}
#endif /* VSG_HAVE_MPI */
}
point_accum_destroy (point, TRUE, NULL);
#ifdef VSG_HAVE_MPI
aran_solver2d_distribute_contiguous_leaves (solver);
#endif /* VSG_HAVE_MPI */
g_rand_free (rand);
}
void dp_evaluation_individ_scramble(DpEvaluationCtrl*hevalctrl, DpIndivid*individ, double eps)
{
int i;
double y, z;
for ( i = 0; i < hevalctrl->eval->size; i++) {
if ( eps > 0 ) {
z = (*(hevalctrl->eval->points[i]->param)) * hevalctrl->eval->points[i]->scale;
y = g_rand_double_range(individ->hrand, (1.0 - eps) * z, (1.0 + eps) * z);
} else {
y = g_rand_double_range(individ->hrand, hevalctrl->eval->points[i]->lower, hevalctrl->eval->points[i]->upper);
}
if ( hevalctrl->eval->points[i]->limited ) {
if ( hevalctrl->eval_strategy == sin_trans_flag )
individ->x[i] = asin ( ( y - hevalctrl->eval->points[i]->alpha ) / hevalctrl->eval->points[i]->beta) / hevalctrl->eval->points[i]->gamma;
else if ( hevalctrl->eval_strategy == tanh_trans_flag )
individ->x[i] = atanh ( ( y - hevalctrl->eval->points[i]->alpha ) / hevalctrl->eval->points[i]->beta) / hevalctrl->eval->points[i]->gamma;
else if ( hevalctrl->eval_strategy == alg_trans_flag )
individ->x[i] = y;
else if ( hevalctrl->eval_strategy == rand_trans_flag )
individ->x[i] = y;
} else {
individ->x[i] = y;
}
}
}
static void _random2_fill (AranSolver3d *solver)
{
guint64 i;
PointAccum *point;
GRand *rand = g_rand_new_with_seed (_random_seed);
point = point_accum_alloc (TRUE, NULL);
for (i=0; i<np; i++)
{
#ifdef VSG_HAVE_MPI
if (i%_flush_interval == 0)
{
aran_solver3d_migrate_flush (solver);
if (i%(_flush_interval*10) == 0)
{
if (_verbose && rk == 0)
g_printerr ("%d: contiguous dist before %luth point\n", rk, i);
aran_solver3d_distribute_contiguous_leaves (solver);
_flush_interval *=2;
}
}
#endif /* VSG_HAVE_MPI */
point->vector.x = g_rand_double_range (rand, -R, R);;
point->vector.y = g_rand_double_range (rand, -R, R);;
point->vector.z = g_rand_double_range (rand, -R, R);;
point->density = 1./np;
point->field = VSG_V3D_ZERO;
point->id = i;
/* if (i == 3) point->density = 0.; */
/* if (i == 4) point->density = 0.; */
/* if (i == 5) point->density = 0.; */
if (check) memcpy (&check_points[i], point, sizeof (PointAccum));
if (aran_solver3d_insert_point_local (solver, point))
{
if (i % 10000 == 0 && _verbose)
g_printerr ("%d: insert %luth point\n", rk, i);
point = point_accum_alloc (TRUE, NULL);
}
}
point_accum_destroy (point, TRUE, NULL);
#ifdef VSG_HAVE_MPI
aran_solver3d_migrate_flush (solver);
aran_solver3d_distribute_contiguous_leaves (solver);
#endif /* VSG_HAVE_MPI */
g_rand_free (rand);
}
/* UV sphere fill */
static void _uvsphere_fill (AranSolver3d *solver)
{
gint i;
PointAccum *point;
VsgVector3d lb, ub;
GRand *rand = g_rand_new_with_seed (_random_seed);
gdouble r;
aran_solver3d_get_bounds (solver, &lb, &ub);
r = MIN (lb.x, ub.x);
point = point_accum_alloc (TRUE, NULL);
for (i=0; i< np; i++)
{
gdouble theta, phi;
theta = g_rand_double_range (rand, 0.01 * G_PI, 0.99 * G_PI);
phi = g_rand_double_range (rand, 0., 2.*G_PI);
vsg_vector3d_from_spherical (&point->vector, r, theta, phi);
point->density = 1.;
point->field = VSG_V3D_ZERO;
point->id = i;
if (check) memcpy (&check_points[i], point, sizeof (PointAccum));
if (aran_solver3d_insert_point_local (solver, point))
{
if (i % 10000 == 0 && _verbose)
g_printerr ("%d: insert %dth point\n", rk, i);
point = point_accum_alloc (TRUE, NULL);
}
#ifdef VSG_HAVE_MPI
if (i%(_flush_interval*10) == 0)
{
if (_verbose && rk == 0)
g_printerr ("%d: contiguous dist before %dth point\n", rk, i);
aran_solver3d_distribute_contiguous_leaves (solver);
_flush_interval *=2;
}
#endif /* VSG_HAVE_MPI */
}
point_accum_destroy (point, TRUE, NULL);
#ifdef VSG_HAVE_MPI
aran_solver3d_distribute_contiguous_leaves (solver);
#endif /* VSG_HAVE_MPI */
g_rand_free (rand);
}
static void _random_fill (AranSolver3d *solver)
{
guint i;
PointAccum *point;
GRand *rand = g_rand_new_with_seed (_random_seed);
for (i=0; i<np; i++)
{
PointAccum tmp;
#ifdef VSG_HAVE_MPI
if (i%_flush_interval == 0)
{
aran_solver3d_migrate_flush (solver);
if (i%(_flush_interval*10) == 0)
{
if (_verbose && rk == 0)
g_printerr ("%d: contiguous dist before %dth point\n", rk, i);
aran_solver3d_distribute_contiguous_leaves (solver);
_flush_interval *=2;
}
}
#endif /* VSG_HAVE_MPI */
tmp.vector.x = g_rand_double_range (rand, -R, R);;
tmp.vector.y = g_rand_double_range (rand, -R, R);;
tmp.vector.z = g_rand_double_range (rand, -R, R);;
tmp.density = 1.;
tmp.field = VSG_V3D_ZERO;
tmp.id = i;
if (check) memcpy (&check_points[i], &tmp, sizeof (PointAccum));
if (i%sz != rk) continue;
if (i % 10000 == 0 && _verbose)
g_printerr ("%d: insert %dth point\n", rk, i);
point = point_accum_alloc (TRUE, NULL);
memcpy (point, &tmp, sizeof (PointAccum));
aran_solver3d_insert_point (solver, point);
}
#ifdef VSG_HAVE_MPI
aran_solver3d_migrate_flush (solver);
aran_solver3d_distribute_contiguous_leaves (solver);
#endif /* VSG_HAVE_MPI */
g_rand_free (rand);
}
void _random_fill (VsgPRTree2d *tree, guint np)
{
gint i;
Pt *pt;
VsgVector2d lb, ub;
GRand *rand = g_rand_new_with_seed (_random_seed);
vsg_prtree2d_get_bounds (tree, &lb, &ub);
_ref_count = 0;
for (i=0; i< np; i++)
{
gdouble x1, y1;
gint c;
x1 = g_rand_double_range (rand, lb.x, ub.x);
y1 = g_rand_double_range (rand, lb.y, ub.y);
c = i+1;
_ref_count += c;
if (i%_flush_interval == 0)
{
vsg_prtree2d_migrate_flush (tree);
if (i%(_flush_interval*10) == 0)
{
if (_verbose && rk == 0)
g_printerr ("%d: contiguous dist before %dth point\n", rk, i);
_distribute (tree);
}
}
if (i%sz != rk) continue;
if (i % 10000 == 0 && _verbose)
g_printerr ("%d: insert %dth point\n", rk, i);
pt = pt_alloc (TRUE, NULL);
pt->vector.x = x1;
pt->vector.y = y1;
pt->weight = c;
vsg_prtree2d_insert_point (tree, pt);
}
vsg_prtree2d_migrate_flush (tree);
_distribute (tree);
g_rand_free (rand);
}
static inline void
random_move (gint *x,
gint *y,
gint max,
GRand *gr)
{
gdouble angle = g_rand_double_range (gr, 0.0, 1.0) * G_PI;
gdouble radius = g_rand_double_range (gr, 0.0, 1.0) * (gdouble) max;
*x = (gint) (radius * cos (angle));
*y = (gint) (radius * sin (angle));
}
static float
event_get_value_with_deviation(GRand *rand, float last_value, Term *term,
Variable *var)
{
float min, max;
if (term_is_discrete(term) || isnan(last_value))
return last_value;
min = fabs(last_value - LAST_VALUE_DEVIATION);
max = last_value + LAST_VALUE_DEVIATION;
if (term) {
if (max > term->max)
max = term->max;
if (min < term->min)
min = term->min;
} else {
if (max > var->max)
max = var->max;
if (min < var->min)
min = var->min;
}
float val;
val = (float)g_rand_double_range(rand, min, max);
return val;
}
/**
* crank_bench_run_rand_double_range: (skip)
* @run: A benchmark run.
* @begin: Begin of range.
* @end: End of range.
*
* Returns random double in the range: [@begin, @end).
*
* Returns: A random double in the range.
*/
gdouble
crank_bench_run_rand_double_range (CrankBenchRun *run,
const gdouble begin,
const gdouble end)
{
return g_rand_double_range (run->random, begin, end);
}
static GstFlowReturn
gst_break_my_data_transform_ip (GstBaseTransform * trans, GstBuffer * buf)
{
GstBreakMyData *bmd = GST_BREAK_MY_DATA (trans);
guint i, size;
g_return_val_if_fail (gst_buffer_is_writable (buf), GST_FLOW_ERROR);
GST_OBJECT_LOCK (bmd);
if (bmd->skipped < bmd->skip) {
i = bmd->skip - bmd->skipped;
} else {
i = 0;
}
size = GST_BUFFER_SIZE (buf);
GST_LOG_OBJECT (bmd,
"got buffer %p (size %u, timestamp %" G_GUINT64_FORMAT ", offset %"
G_GUINT64_FORMAT "", buf, size, GST_BUFFER_TIMESTAMP (buf),
GST_BUFFER_OFFSET (buf));
for (; i < size; i++) {
if (g_rand_double_range (bmd->rand, 0, 1.0) <= bmd->probability) {
guint8 new;
if (bmd->set < 0) {
new = g_rand_int_range (bmd->rand, 0, 256);
} else {
new = bmd->set;
void
generate_drug ()
{
GRand *rand;
gint i, j, divisor;
rand = g_rand_new ();
for (i = 0; i < DRUG_NUM; i++)
for (j = 0; j < CITY_NUM; j++)
{
drug_table[i][j].available = g_rand_boolean (rand);
if (drug_table[i][j].available)
{
drug_table[i][j].qty = g_rand_int_range (rand, 0, 10);
if (drug_table[i][j].qty > 0)
divisor = drug_table[i][j].qty;
else
divisor = g_rand_int_range (rand, 1, 10);
drug_table[i][j].price = ((double) 10 / divisor) *
g_rand_double_range (rand, 0.1, 1.0) *
drug_price[i];
}
}
g_rand_free (rand);
}
static void
spread_func (gint x,
gint y,
guchar *dest,
gint bpp,
gpointer data)
{
SpreadParam_t *param = (SpreadParam_t*) data;
gdouble angle;
gint xdist, ydist;
gint xi, yi;
/* get random angle, x distance, and y distance */
xdist = (param->x_amount > 0
? g_rand_int_range (param->gr, -param->x_amount, param->x_amount)
: 0);
ydist = (param->y_amount > 0
? g_rand_int_range (param->gr, -param->y_amount, param->y_amount)
: 0);
angle = g_rand_double_range (param->gr, -G_PI, G_PI);
xi = x + floor (sin (angle) * xdist);
yi = y + floor (cos (angle) * ydist);
/* Only displace the pixel if it's within the bounds of the image. */
if (xi >= 0 && xi < param->width && yi >= 0 && yi < param->height)
{
gimp_pixel_fetcher_get_pixel (param->pft, xi, yi, dest);
}
else /* Else just copy it */
{
gimp_pixel_fetcher_get_pixel (param->pft, x, y, dest);
}
}
/** Evaluate an Eh_input_val
\param val An initialized Eh_input_val
\param ... Extra parameter for a time value if \a val is set to read from
a time series.
\return The new value
*/
double
eh_input_val_eval( Eh_input_val val , ... )
{
va_list args;
double data;
if ( val->type == EH_INPUT_VAL_RAND_NORMAL )
val->val = eh_rand_normal( val->rand , val->data[0] , val->data[1] );
else if ( val->type == EH_INPUT_VAL_RAND_UNIFORM )
val->val = g_rand_double_range( val->rand , val->data[0] , val->data[1] );
else if ( val->type == EH_INPUT_VAL_RAND_WEIBULL )
val->val = eh_rand_weibull( val->rand , val->data[0] , val->data[1] );
else if ( val->type == EH_INPUT_VAL_RAND_USER )
val->val = eh_rand_user( val->rand , val->x , val->y , val->len );
else if ( val->type == EH_INPUT_VAL_FILE )
{
eh_require( val->x );
eh_require( val->y );
va_start( args , val );
data = va_arg( args , double );
interpolate( val->x , val->y , val->len , &data , &(val->val) , 1 );
va_end( args );
}
/**
* crank_bench_run_rand_float_range: (skip)
* @run: A benchmark run.
* @begin: Begin of range.
* @end: End of range.
*
* Returns random float in the range: [@begin, @end).
*
* Returns: A random float in the range.
*/
gfloat
crank_bench_run_rand_float_range (CrankBenchRun *run,
const gfloat begin,
const gfloat end)
{
return (gfloat) g_rand_double_range (run->random, (gdouble)begin, (gdouble)end);
}
void
test_field_mean(void)
{
enum { max_size = 76 };
GRand *rng = g_rand_new_with_seed(42);
gsize niter = 50;
for (guint iter = 0; iter < niter; iter++) {
guint xres = g_rand_int_range(rng, 1, max_size);
guint yres = g_rand_int_range(rng, 1, max_size);
gdouble alpha = g_rand_double_range(rng, -5.0, 5.0);
gdouble beta = g_rand_double_range(rng, -5.0, 5.0);
GwyField *field = field_make_planar(xres, yres, alpha, beta);
gdouble mean, mean_expected;
mean = gwy_field_mean_full(field);
mean_expected = 0.5*(alpha + beta);
gwy_assert_floatval(mean, mean_expected, 1e-9*fabs(mean_expected));
field_randomize(field, rng);
guint width = g_rand_int_range(rng, 1, xres+1);
guint height = g_rand_int_range(rng, 1, yres+1);
guint col = g_rand_int_range(rng, 0, xres-width+1);
guint row = g_rand_int_range(rng, 0, yres-height+1);
GwyFieldPart fpart = { col, row, width, height };
GwyMaskField *mask = random_mask_field(xres, yres, rng);
guint m = gwy_mask_field_part_count(mask, &fpart, TRUE);
guint n = gwy_mask_field_part_count(mask, &fpart, FALSE);
gdouble mean_include = gwy_field_mean(field, &fpart,
mask, GWY_MASK_INCLUDE);
gdouble mean_exclude = gwy_field_mean(field, &fpart,
mask, GWY_MASK_EXCLUDE);
gdouble mean_ignore = gwy_field_mean(field, &fpart,
mask, GWY_MASK_IGNORE);
if (isnan(mean_include)) {
g_assert_cmpuint(m, ==, 0);
gwy_assert_floatval(mean_exclude, mean_ignore,
1e-9*fabs(mean_ignore));
}
else if (isnan(mean_exclude)) {
g_assert_cmpuint(n, ==, 0);
gwy_assert_floatval(mean_include, mean_ignore,
1e-9*fabs(mean_ignore));
}
else {
static gboolean
on_window_draw (GtkWidget *widget,
cairo_t *cr)
{
GRand *rand = g_rand_new_with_seed(0);
int i;
int width, height;
width = gtk_widget_get_allocated_width (widget);
height = gtk_widget_get_allocated_height (widget);
ensure_resources (cairo_get_target (cr));
cairo_set_source_rgb(cr, 1, 1, 1);
cairo_paint(cr);
cairo_set_source_rgb(cr, 0, 0, 0);
cairo_set_line_width(cr, 1.0);
cairo_rectangle (cr, 0.5, 0.5, width - 1, height - 1);
cairo_stroke (cr);
for(i = 0; i < load_factor * 150; i++)
{
int source = g_rand_int_range(rand, 0, 255);
double phi = g_rand_double_range(rand, 0, 2 * M_PI) + angle;
double r = g_rand_double_range(rand, 0, width / 2 - RADIUS);
int x, y;
int source_x = (source % 16) * DIAMETER;
int source_y = (source / 16) * DIAMETER;
x = round(width / 2 + r * cos(phi) - RADIUS);
y = round(height / 2 - r * sin(phi) - RADIUS);
cairo_set_source_surface(cr, source_surface,
x - source_x, y - source_y);
cairo_rectangle(cr, x, y, DIAMETER, DIAMETER);
cairo_fill(cr);
}
g_rand_free(rand);
return FALSE;
}
int main(int argc, char **argv)
{
int npoints = 100;
GRand *rng = g_rand_new ();
pointlist2d_t *candidates = pointlist2d_new (npoints);
for (int i=0; i<npoints; i++) {
candidates->points[i].x = g_rand_double_range (rng, 0, 100);
candidates->points[i].y = g_rand_double_range (rng, 0, 100);
}
for (int i=0; i<5000000; i++) {
pointlist2d_t *a = pointlist2d_new (g_rand_int_range (rng, 3, npoints / 3));
pointlist2d_t *b = pointlist2d_new (g_rand_int_range (rng, 3, npoints / 3));
for (int j=0; j<a->npoints; j++) {
a->points[j] =
candidates->points[g_rand_int_range (rng, 0, npoints)];
}
for (int j=0; j<b->npoints; j++) {
b->points[j] =
candidates->points[g_rand_int_range (rng, 0, npoints)];
}
pointlist2d_t *ah = convexhull_graham_scan_2d (a);
if (ah) {
pointlist2d_t *bh = convexhull_graham_scan_2d (b);
if (bh) {
pointlist2d_t *isect =
geom_convex_polygon_convex_polygon_intersect_2d (ah, bh);
if (isect)
pointlist2d_free (isect);
pointlist2d_free (bh);
}
pointlist2d_free (ah);
}
pointlist2d_free (a);
pointlist2d_free (b);
}
return 0;
}
static void
random_rgba (GRand *gr,
gfloat *dest)
{
gint i;
for (i = 0; i < 3; i++)
dest[i] = (gfloat) g_rand_double_range (gr, 0.0, 1.0);
}
static guchar*
rgb_to_hsl (GimpDrawable *drawable,
LICEffectChannel effect_channel)
{
guchar *themap, data[4];
gint x, y;
GimpRGB color;
GimpHSL color_hsl;
gdouble val = 0.0;
glong maxc, index = 0;
GimpPixelRgn region;
GRand *gr;
gr = g_rand_new ();
maxc = drawable->width * drawable->height;
gimp_pixel_rgn_init (®ion, drawable, border_x, border_y,
border_w, border_h, FALSE, FALSE);
themap = g_new (guchar, maxc);
for (y = 0; y < region.h; y++)
{
for (x = 0; x < region.w; x++)
{
data[3] = 255;
gimp_pixel_rgn_get_pixel (®ion, data, x, y);
gimp_rgba_set_uchar (&color, data[0], data[1], data[2], data[3]);
gimp_rgb_to_hsl (&color, &color_hsl);
switch (effect_channel)
{
case LIC_HUE:
val = color_hsl.h * 255;
break;
case LIC_SATURATION:
val = color_hsl.s * 255;
break;
case LIC_BRIGHTNESS:
val = color_hsl.l * 255;
break;
}
/* add some random to avoid unstructured areas. */
val += g_rand_double_range (gr, -1.0, 1.0);
themap[index++] = (guchar) CLAMP0255 (RINT (val));
}
}
g_rand_free (gr);
return themap;
}
static void
update_sensor_value(IsSensor *sensor,
IsFakePlugin *self)
{
/* fake value */
is_sensor_set_value(sensor,
g_rand_double_range(self->priv->rand,
is_sensor_get_low_value(sensor),
is_sensor_get_high_value(sensor)));
}
static gboolean on_ref_draw(GtkWidget* widget, cairo_t* cr, gpointer data)
{
double r = g_rand_double_range(rand, 0.0, 1.0);
double g = g_rand_double_range(rand, 0.0, 1.0);
double b = g_rand_double_range(rand, 0.0, 1.0);
int x = g_rand_int_range(rand, 0, g_width);
int y = g_rand_int_range(rand, 0, g_height);
int w = g_rand_int_range(rand, g_width/2, g_width+1);
int h = g_rand_int_range(rand, g_height/2, g_height+1);
cairo_set_source_rgb(cr, r, g, b);
cairo_rectangle(cr, x, y, w, h);
cairo_fill(cr);
gtk_widget_queue_draw(top);
return TRUE;
}
static void random_fill (VsgPRTree3d *tree, guint np)
{
gint i;
VsgVector3d *pt;
Sphere *c;
VsgVector3d lb, ub;
GRand *rand = g_rand_new_with_seed (_random_seed);
vsg_prtree3d_get_bounds (tree, &lb, &ub);
for (i=0; i< np; i++)
{
gdouble x1, x2, y1, y2, z1, z2, r;
x1 = g_rand_double_range (rand, lb.x, ub.x);
y1 = g_rand_double_range (rand, lb.y, ub.y);
z1 = g_rand_double_range (rand, lb.z, ub.z);
x2 = g_rand_double_range (rand, lb.x, ub.x);
y2 = g_rand_double_range (rand, lb.y, ub.y);
z2 = g_rand_double_range (rand, lb.z, ub.z);
r = g_rand_double_range (rand, 0., 0.1);
if (i%_flush_interval == 0) vsg_prtree3d_migrate_flush (tree);
if (i%sz != rk) continue;
if (i % 10000 == 0 && _verbose) g_printerr ("%d: insert %dth point\n", rk, i);
pt = pt_alloc (TRUE, NULL);
pt->x = x1;
pt->y = y1;
pt->z = z1;
vsg_prtree3d_insert_point (tree, pt);
if (_put_regions)
{
c = rg_alloc (TRUE, NULL);
c->center.x = x2;
c->center.y = y2;
c->center.z = z2;
c->radius = r;
vsg_prtree3d_insert_region (tree, c);
}
/* g_printerr ("%d: %d\n", rk, i); */
}
vsg_prtree3d_migrate_flush (tree);
g_rand_free (rand);
}
static void
add_random (GRand *gr,
gfloat *dest,
gfloat amount)
{
gint i;
gfloat tmp;
amount /= 2.0;
if (amount > 0)
for (i = 0; i < 3; i++)
{
tmp = dest[i] + (gfloat) g_rand_double_range (gr, -amount, amount);
dest[i] = CLAMP (tmp, 0.0, 1.0);
}
}
void g_neuron_set_random_weight(GNeuron *neuron)
{
GRand* rand;
gint i;
g_return_if_fail(NULL != neuron);
neuron->priv = G_TYPE_INSTANCE_GET_PRIVATE (neuron,
TYPE_G_NEURON, GNeuronPrivate);
GNeuronPrivate *priv = neuron->priv;
rand = g_rand_new();
for(i = 0; i < priv->ninput; ++i)
{
priv->weights[i] = g_rand_double_range(rand, -0.5f, 0.5f);
}
}
static void
generatevectors (void)
{
gdouble alpha;
gint i, j;
GRand *gr;
gr = g_rand_new();
for (i = 0; i < numx; i++)
{
for (j = 0; j < numy; j++)
{
alpha = g_rand_double_range (gr, 0, 2) * G_PI;
G[i][j][0] = cos (alpha);
G[i][j][1] = sin (alpha);
}
}
g_rand_free (gr);
}
int random_assignment(Job *jobarray, int njobs, int nmachines,
solution *new_sol, GRand *rand_) {
int i, val = 0;
double n;
partlist *temp = (partlist *) NULL;
Job *j = (Job *) NULL;
GQueue *queue = (GQueue *) NULL;
queue = g_queue_new();
for (i = 0; i < nmachines; ++i) {
g_queue_push_head(queue, new_sol->part + i);
}
for (i = 0; i < njobs; ++i) {
j = jobarray + i;
n = g_rand_double_range(rand_, 0.0, 1.0);
if (n < 0.8) {
temp = (partlist *) g_queue_pop_head(queue);
} else if (n >= 0.8 && n < 0.95) {
temp = (partlist *) g_queue_pop_nth(queue, 1);
} else {
if(nmachines > 2) {
temp = (partlist *)g_queue_pop_nth(queue, 2);
} else {
temp = (partlist *)g_queue_pop_nth(queue, 1);
}
}
val = partlist_insert(temp, new_sol->vlist, j);
CCcheck_val_2(val, "Failed in partlist_insert_order");
g_queue_insert_sorted(queue, temp, compare_func1, NULL);
}
CLEAN:
g_queue_free(queue);
return val;
}
static void
calc_sample_coords (gint src_x,
gint src_y,
gint x_amount,
gint y_amount,
GRand *gr,
gdouble *x,
gdouble *y)
{
gdouble angle;
gint xdist, ydist;
/* get random angle, x distance, and y distance */
xdist = (x_amount > 0
? g_rand_int_range (gr, -x_amount, x_amount)
: 0);
ydist = (y_amount > 0
? g_rand_int_range (gr, -y_amount, y_amount)
: 0);
angle = g_rand_double_range (gr, -G_PI, G_PI);
*x = src_x + floor (sin (angle) * xdist);
*y = src_y + floor (cos (angle) * ydist);
}
static void
prepare_coef (params *p)
{
GimpRGB color1;
GimpRGB color2;
gdouble scalex = svals.scalex;
gdouble scaley = svals.scaley;
GRand *gr;
gr = g_rand_new ();
g_rand_set_seed (gr, svals.seed);
switch (svals.colorization)
{
case BILINEAR:
p->blend = bilinear;
break;
case SINUS:
p->blend = cosinus;
break;
case LINEAR:
default:
p->blend = linear;
}
if (svals.perturbation==IDEAL)
{
/* Presumably the 0 * g_rand_int ()s are to pop random
* values off the prng, I don't see why though. */
p->c11= 0 * g_rand_int (gr);
p->c12= g_rand_double_range (gr, -1, 1) * scaley;
p->c13= g_rand_double_range (gr, 0, 2 * G_PI);
p->c21= 0 * g_rand_int (gr);
p->c22= g_rand_double_range (gr, -1, 1) * scaley;
p->c23= g_rand_double_range (gr, 0, 2 * G_PI);
p->c31= g_rand_double_range (gr, -1, 1) * scalex;
p->c32= 0 * g_rand_int (gr);
p->c33= g_rand_double_range (gr, 0, 2 * G_PI);
}
else
{
p->c11= g_rand_double_range (gr, -1, 1) * scalex;
p->c12= g_rand_double_range (gr, -1, 1) * scaley;
p->c13= g_rand_double_range (gr, 0, 2 * G_PI);
p->c21= g_rand_double_range (gr, -1, 1) * scalex;
p->c22= g_rand_double_range (gr, -1, 1) * scaley;
p->c23= g_rand_double_range (gr, 0, 2 * G_PI);
p->c31= g_rand_double_range (gr, -1, 1) * scalex;
p->c32= g_rand_double_range (gr, -1, 1) * scaley;
p->c33= g_rand_double_range (gr, 0, 2 * G_PI);
}
if (svals.tiling)
{
p->c11= ROUND (p->c11/(2*G_PI))*2*G_PI;
p->c12= ROUND (p->c12/(2*G_PI))*2*G_PI;
p->c21= ROUND (p->c21/(2*G_PI))*2*G_PI;
p->c22= ROUND (p->c22/(2*G_PI))*2*G_PI;
p->c31= ROUND (p->c31/(2*G_PI))*2*G_PI;
p->c32= ROUND (p->c32/(2*G_PI))*2*G_PI;
}
color1 = svals.col1;
color2 = svals.col2;
if (drawable_is_grayscale)
{
gimp_rgb_set (&color1, 1.0, 1.0, 1.0);
gimp_rgb_set (&color2, 0.0, 0.0, 0.0);
}
else
{
switch (svals.colors)
{
case USE_COLORS:
break;
case B_W:
gimp_rgb_set (&color1, 1.0, 1.0, 1.0);
gimp_rgb_set (&color2, 0.0, 0.0, 0.0);
break;
case USE_FG_BG:
gimp_context_get_background (&color1);
gimp_context_get_foreground (&color2);
break;
}
}
gimp_rgba_get_uchar (&color1, &p->r, &p->g, &p->b, &p->a);
gimp_rgba_subtract (&color2, &color1);
p->dr = color2.r * 255.0;
p->dg = color2.g * 255.0;
p->db = color2.b * 255.0;
p->da = color2.a * 255.0;
g_rand_free (gr);
}