Pileus Git - aweather/blob - src/plugins/level2.c

   1 /*
   2  * Copyright (C) 2009-2010 Andy Spencer <andy753421@gmail.com>
   3  *
   4  * This program is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 #include <config.h>
  19 #include <math.h>
  20 #include <GL/gl.h>
  21 #include <glib/gstdio.h>
  22 #include <grits.h>
  23 #include <rsl.h>
  24
  25 #include "level2.h"
  26
  27 #define ISO_MIN 30
  28 #define ISO_MAX 80
  29
  30 /**************************
  31  * Data loading functions *
  32  **************************/
  33 /* Convert a sweep to an 2d array of data points */
  34 static void _bscan_sweep(Sweep *sweep, AWeatherColormap *colormap,
  35                 guint8 **data, int *width, int *height)
  36 {
  37         g_debug("AWeatherLevel2: _bscan_sweep - %p, %p, %p",
  38                         sweep, colormap, data);
  39         /* Calculate max number of bins */
  40         int max_bins = 0;
  41         for (int i = 0; i < sweep->h.nrays; i++)
  42                 max_bins = MAX(max_bins, sweep->ray[i]->h.nbins);
  43
  44         /* Allocate buffer using max number of bins for each ray */
  45         guint8 *buf = g_malloc0(sweep->h.nrays * max_bins * 4);
  46
  47         /* Fill the data */
  48         for (int ri = 0; ri < sweep->h.nrays; ri++) {
  49                 Ray *ray  = sweep->ray[ri];
  50                 for (int bi = 0; bi < ray->h.nbins; bi++) {
  51                         guint  buf_i = (ri*max_bins+bi)*4;
  52                         float  value = ray->h.f(ray->range[bi]);
  53
  54                         /* Check for bad values */
  55                         if (value == BADVAL     || value == RFVAL      || value == APFLAG ||
  56                             value == NOTFOUND_H || value == NOTFOUND_V || value == NOECHO) {
  57                                 buf[buf_i+3] = 0x00; // transparent
  58                                 continue;
  59                         }
  60
  61                         /* Convert data value to index */
  62                         gint idx = value * colormap->scale + colormap->shift;
  63                         idx = CLAMP(idx, 0, colormap->len);
  64
  65                         /* Copy color to buffer */
  66                         buf[buf_i+0] = colormap->data[idx][0];
  67                         buf[buf_i+1] = colormap->data[idx][1];
  68                         buf[buf_i+2] = colormap->data[idx][2];
  69                         buf[buf_i+3] = colormap->data[idx][3]*0.75; // TESTING
  70                 }
  71         }
  72
  73         /* set output */
  74         *width  = max_bins;
  75         *height = sweep->h.nrays;
  76         *data   = buf;
  77 }
  78
  79 /* Load a sweep into an OpenGL texture */
  80 static void _load_sweep_gl(AWeatherLevel2 *self)
  81 {
  82         g_debug("AWeatherLevel2: _load_sweep_gl");
  83         guint8 *data;
  84         gint width, height;
  85         _bscan_sweep(self->sweep, self->sweep_colors, &data, &width, &height);
  86         gint tex_width  = pow(2, ceil(log(width )/log(2)));
  87         gint tex_height = pow(2, ceil(log(height)/log(2)));
  88         self->sweep_coords[0] = (double)width  / tex_width;
  89         self->sweep_coords[1] = (double)height / tex_height;
  90
  91         if (!self->sweep_tex)
  92                  glGenTextures(1, &self->sweep_tex);
  93         glBindTexture(GL_TEXTURE_2D, self->sweep_tex);
  94         glPixelStorei(GL_PACK_ALIGNMENT, 1);
  95         glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
  96         glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, tex_width, tex_height, 0,
  97                         GL_RGBA, GL_UNSIGNED_BYTE, NULL);
  98         glTexSubImage2D(GL_TEXTURE_2D, 0, 0,0, width,height,
  99                         GL_RGBA, GL_UNSIGNED_BYTE, data);
 100         glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
 101         glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
 102
 103         g_free(data);
 104 }
 105
 106 /* Decompress a radar file using wsr88dec */
 107 static gboolean _decompress_radar(const gchar *file, const gchar *raw)
 108 {
 109         g_debug("AWeatherLevel2: _decompress_radar - \n\t%s\n\t%s", file, raw);
 110         char *argv[] = {"wsr88ddec", (gchar*)file, (gchar*)raw, NULL};
 111         gint status;
 112         GError *error = NULL;
 113         g_spawn_sync(
 114                 NULL,    // const gchar *working_directory
 115                 argv,    // gchar **argv
 116                 NULL,    // gchar **envp
 117                 G_SPAWN_SEARCH_PATH, // GSpawnFlags flags
 118                 NULL,    // GSpawnChildSetupFunc child_setup
 119                 NULL,    // gpointer user_data
 120                 NULL,    // gchar *standard_output
 121                 NULL,    // gchar *standard_output
 122                 &status, // gint *exit_status
 123                 &error); // GError **error
 124         if (error) {
 125                 g_warning("AWeatherLevel2: _decompress_radar - %s", error->message);
 126                 g_error_free(error);
 127                 return FALSE;
 128         }
 129         if (status != 0) {
 130                 gchar *msg = g_strdup_printf("wsr88ddec exited with status %d", status);
 131                 g_warning("AWeatherLevel2: _decompress_radar - %s", msg);
 132                 g_free(msg);
 133                 return FALSE;
 134         }
 135         return TRUE;
 136 }
 137
 138 /* Load the radar into a Grits Volume */
 139 static void _cart_to_sphere(VolCoord *out, VolCoord *in)
 140 {
 141         gdouble angle = in->x;
 142         gdouble dist  = in->y;
 143         gdouble tilt  = in->z;
 144         gdouble lx    = sin(angle);
 145         gdouble ly    = cos(angle);
 146         gdouble lz    = sin(tilt);
 147         //out->x = (ly*dist)/20000;
 148         //out->y = (lz*dist)/10000-0.5;
 149         //out->z = (lx*dist)/20000-1.5;
 150         out->x = (lx*dist);
 151         out->y = (ly*dist);
 152         out->z = (lz*dist);
 153 }
 154
 155 static VolGrid *_load_grid(Volume *vol)
 156 {
 157         g_debug("AWeatherLevel2: _load_grid");
 158
 159         Sweep *sweep   = vol->sweep[0];
 160         Ray   *ray     = sweep->ray[0];
 161         gint nsweeps   = vol->h.nsweeps;
 162         gint nrays     = sweep->h.nrays/(1/sweep->h.beam_width)+1;
 163         gint nbins     = ray->h.nbins  /(1000/ray->h.gate_size);
 164         nbins = MIN(nbins, 100);
 165
 166         VolGrid  *grid = vol_grid_new(nrays, nbins, nsweeps);
 167
 168         gint rs, bs, val;
 169         gint si=0, ri=0, bi=0;
 170         for (si = 0; si < nsweeps; si++) {
 171                 sweep = vol->sweep[si];
 172                 rs    = 1.0/sweep->h.beam_width;
 173         for (ri = 0; ri < nrays; ri++) {
 174                 /* TODO: missing rays, pick ri based on azmith */
 175                 ray   = sweep->ray[(ri*rs) % sweep->h.nrays];
 176                 bs    = 1000/ray->h.gate_size;
 177         for (bi = 0; bi < nbins; bi++) {
 178                 if (bi*bs >= ray->h.nbins)
 179                         break;
 180                 val   = ray->h.f(ray->range[bi*bs]);
 181                 if (val == BADVAL     || val == RFVAL      ||
 182                     val == APFLAG     || val == NOECHO     ||
 183                     val == NOTFOUND_H || val == NOTFOUND_V ||
 184                     val > 80)
 185                         val = 0;
 186                 VolPoint *point = vol_grid_get(grid, ri, bi, si);
 187                 point->value = val;
 188                 point->c.x = deg2rad(ray->h.azimuth);
 189                 point->c.y = bi*bs*ray->h.gate_size + ray->h.range_bin1;
 190                 point->c.z = deg2rad(ray->h.elev);
 191         } } }
 192
 193         for (si = 0; si < nsweeps; si++)
 194         for (ri = 0; ri < nrays; ri++)
 195         for (bi = 0; bi < nbins; bi++) {
 196                 VolPoint *point = vol_grid_get(grid, ri, bi, si);
 197                 if (point->c.y == 0)
 198                         point->value = nan("");
 199                 else
 200                         _cart_to_sphere(&point->c, &point->c);
 201         }
 202         return grid;
 203 }
 204
 205
 206 /*********************
 207  * Drawing functions *
 208  *********************/
 209 void aweather_level2_draw(GritsObject *_self, GritsOpenGL *opengl)
 210 {
 211         AWeatherLevel2 *self = AWEATHER_LEVEL2(_self);
 212         if (!self->sweep || !self->sweep_tex)
 213                 return;
 214
 215         /* Draw wsr88d */
 216         Sweep *sweep = self->sweep;
 217         glDisable(GL_ALPHA_TEST);
 218         glDisable(GL_CULL_FACE);
 219         glDisable(GL_LIGHTING);
 220         glEnable(GL_TEXTURE_2D);
 221         glEnable(GL_POLYGON_OFFSET_FILL);
 222         glPolygonOffset(1.0, -2.0);
 223         glColor4f(1,1,1,1);
 224
 225         /* Draw the rays */
 226         gdouble xscale = self->sweep_coords[0];
 227         gdouble yscale = self->sweep_coords[1];
 228         glBindTexture(GL_TEXTURE_2D, self->sweep_tex);
 229         glBegin(GL_TRIANGLE_STRIP);
 230         for (int ri = 0; ri <= sweep->h.nrays; ri++) {
 231                 Ray  *ray = NULL;
 232                 double angle = 0;
 233                 if (ri < sweep->h.nrays) {
 234                         ray = sweep->ray[ri];
 235                         angle = deg2rad(ray->h.azimuth - ((double)ray->h.beam_width/2.));
 236                 } else {
 237                         /* Do the right side of the last sweep */
 238                         ray = sweep->ray[ri-1];
 239                         angle = deg2rad(ray->h.azimuth + ((double)ray->h.beam_width/2.));
 240                 }
 241
 242                 double lx = sin(angle);
 243                 double ly = cos(angle);
 244
 245                 double near_dist = ray->h.range_bin1 - ((double)ray->h.gate_size/2.);
 246                 double far_dist  = near_dist + (double)ray->h.nbins*ray->h.gate_size;
 247
 248                 /* (find middle of bin) / scale for opengl */
 249                 // near left
 250                 glTexCoord2f(0.0, ((double)ri/sweep->h.nrays)*yscale);
 251                 glVertex3f(lx*near_dist, ly*near_dist, 2.0);
 252
 253                 // far  left
 254                 // todo: correct range-height function
 255                 double height = sin(deg2rad(ray->h.elev)) * far_dist;
 256                 glTexCoord2f(xscale, ((double)ri/sweep->h.nrays)*yscale);
 257                 glVertex3f(lx*far_dist,  ly*far_dist, height);
 258         }
 259         glEnd();
 260         //g_print("ri=%d, nr=%d, bw=%f\n", _ri, sweep->h.nrays, sweep->h.beam_width);
 261
 262         /* Texture debug */
 263         //glBegin(GL_QUADS);
 264         //glTexCoord2d( 0.,  0.); glVertex3f(-500.,   0., 0.); // bot left
 265         //glTexCoord2d( 0.,  1.); glVertex3f(-500., 500., 0.); // top left
 266         //glTexCoord2d( 1.,  1.); glVertex3f( 0.,   500., 3.); // top right
 267         //glTexCoord2d( 1.,  0.); glVertex3f( 0.,     0., 3.); // bot right
 268         //glEnd();
 269 }
 270
 271
 272 /***********
 273  * Methods *
 274  ***********/
 275 static gboolean _set_sweep_cb(gpointer _self)
 276 {
 277         g_debug("AWeatherLevel2: _set_sweep_cb");
 278         AWeatherLevel2 *self = _self;
 279         _load_sweep_gl(self);
 280         grits_object_queue_draw(_self);
 281         g_object_unref(self);
 282         return FALSE;
 283 }
 284 void aweather_level2_set_sweep(AWeatherLevel2 *self,
 285                 int type, float elev)
 286 {
 287         g_debug("AWeatherLevel2: set_sweep - %d %f", type, elev);
 288
 289         /* Find sweep */
 290         Volume *volume = RSL_get_volume(self->radar, type);
 291         if (!volume) return;
 292         self->sweep = RSL_get_closest_sweep(volume, elev, 90);
 293         if (!self->sweep) return;
 294
 295         /* Find colormap */
 296         self->sweep_colors = NULL;
 297         for (int i = 0; self->colormap[i].file; i++)
 298                 if (self->colormap[i].type == type)
 299                         self->sweep_colors = &self->colormap[i];
 300         if (!self->sweep_colors) {
 301                 g_warning("AWeatherLevel2: set_sweep - missing colormap[%d]", type);
 302                 self->sweep_colors = &self->colormap[0];
 303         }
 304
 305         /* Load data */
 306         g_object_ref(self);
 307         g_idle_add(_set_sweep_cb, self);
 308 }
 309
 310 void aweather_level2_set_iso(AWeatherLevel2 *level2, gfloat level)
 311 {
 312         g_debug("AWeatherLevel2: set_iso - %f", level);
 313
 314         if (!level2->volume) {
 315                 g_debug("AWeatherLevel2: set_iso - creating new volume");
 316                 Volume      *rvol = RSL_get_volume(level2->radar, DZ_INDEX);
 317                 VolGrid     *grid = _load_grid(rvol);
 318                 GritsVolume *vol  = grits_volume_new(grid);
 319                 vol->proj = GRITS_VOLUME_CARTESIAN;
 320                 vol->disp = GRITS_VOLUME_SURFACE;
 321                 GRITS_OBJECT(vol)->center = GRITS_OBJECT(level2)->center;
 322                 grits_viewer_add(GRITS_OBJECT(level2)->viewer,
 323                                 GRITS_OBJECT(vol), GRITS_LEVEL_WORLD, TRUE);
 324                 level2->volume = vol;
 325         }
 326         if (ISO_MIN < level && level < ISO_MAX) {
 327                 AWeatherColormap *cm = &level2->colormap[0];
 328                 level2->volume->color[0] = cm->data[(gint)level][0];
 329                 level2->volume->color[1] = cm->data[(gint)level][1];
 330                 level2->volume->color[2] = cm->data[(gint)level][2];
 331                 level2->volume->color[3] = cm->data[(gint)level][3];
 332                 grits_volume_set_level(level2->volume, level);
 333                 GRITS_OBJECT(level2->volume)->hidden = FALSE;
 334         } else {
 335                 GRITS_OBJECT(level2->volume)->hidden = TRUE;
 336         }
 337 }
 338
 339 AWeatherLevel2 *aweather_level2_new(Radar *radar, AWeatherColormap *colormap)
 340 {
 341         g_debug("AWeatherLevel2: new - %s", radar->h.radar_name);
 342         RSL_sort_radar(radar);
 343         AWeatherLevel2 *self = g_object_new(AWEATHER_TYPE_LEVEL2, NULL);
 344         self->radar    = radar;
 345         self->colormap = colormap;
 346         aweather_level2_set_sweep(self, DZ_INDEX, 0);
 347
 348         GritsPoint center;
 349         Radar_header *h = &radar->h;
 350         center.lat  = (double)h->latd + (double)h->latm/60 + (double)h->lats/(60*60);
 351         center.lon  = (double)h->lond + (double)h->lonm/60 + (double)h->lons/(60*60);
 352         center.elev = h->height;
 353         GRITS_OBJECT(self)->center = center;
 354         return self;
 355 }
 356
 357 AWeatherLevel2 *aweather_level2_new_from_file(const gchar *file, const gchar *site,
 358                 AWeatherColormap *colormap)
 359 {
 360         g_debug("AWeatherLevel2: new_from_file %s %s", site, file);
 361
 362         /* Decompress radar */
 363         gchar *raw = g_strconcat(file, ".raw", NULL);
 364         if (g_file_test(raw, G_FILE_TEST_EXISTS)) {
 365                 struct stat files, raws;
 366                 g_stat(file, &files);
 367                 g_stat(raw,  &raws);
 368                 if (files.st_mtime > raws.st_mtime)
 369                         if (!_decompress_radar(file, raw))
 370                                 return NULL;
 371         } else {
 372                 if (!_decompress_radar(file, raw))
 373                         return NULL;
 374         }
 375
 376         /* Load the radar file */
 377         RSL_read_these_sweeps("all", NULL);
 378         g_message("read start");
 379         Radar *radar = RSL_wsr88d_to_radar(raw, (gchar*)site);
 380         g_message("read done");
 381         g_free(raw);
 382         if (!radar)
 383                 return NULL;
 384
 385         return aweather_level2_new(radar, colormaps);
 386 }
 387
 388 static void _on_sweep_clicked(GtkRadioButton *button, gpointer _level2)
 389 {
 390         AWeatherLevel2 *level2 = _level2;
 391         if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(button))) {
 392                 gint type = (gint)g_object_get_data(G_OBJECT(button), "type");
 393                 gint elev = (gint)g_object_get_data(G_OBJECT(button), "elev");
 394                 aweather_level2_set_sweep(level2, type, (float)elev/100);
 395                 //self->colormap = level2->sweep_colors;
 396         }
 397 }
 398
 399 static void _on_iso_changed(GtkRange *range, gpointer _level2)
 400 {
 401         AWeatherLevel2 *level2 = _level2;
 402         gfloat level = gtk_range_get_value(range);
 403         aweather_level2_set_iso(level2, level);
 404 }
 405
 406 GtkWidget *aweather_level2_get_config(AWeatherLevel2 *level2)
 407 {
 408         Radar *radar = level2->radar;
 409         g_debug("AWeatherLevel2: get_config - %p, %p", level2, radar);
 410         /* Clear existing items */
 411         gfloat elev;
 412         guint rows = 1, cols = 1, cur_cols;
 413         gchar row_label_str[64], col_label_str[64], button_str[64];
 414         GtkWidget *row_label, *col_label, *button = NULL, *elev_box = NULL;
 415         GtkWidget *table = gtk_table_new(rows, cols, FALSE);
 416
 417         /* Add date */
 418         gchar *date_str = g_strdup_printf("<b><i>%04d-%02d-%02d %02d:%02d</i></b>",
 419                         radar->h.year, radar->h.month, radar->h.day,
 420                         radar->h.hour, radar->h.minute);
 421         GtkWidget *date_label = gtk_label_new(date_str);
 422         gtk_label_set_use_markup(GTK_LABEL(date_label), TRUE);
 423         gtk_table_attach(GTK_TABLE(table), date_label,
 424                         0,1, 0,1, GTK_FILL,GTK_FILL, 5,0);
 425         g_free(date_str);
 426
 427         /* Add sweeps */
 428         for (guint vi = 0; vi < radar->h.nvolumes; vi++) {
 429                 Volume *vol = radar->v[vi];
 430                 if (vol == NULL) continue;
 431                 rows++; cols = 1; elev = 0;
 432
 433                 /* Row label */
 434                 g_snprintf(row_label_str, 64, "<b>%s:</b>", vol->h.type_str);
 435                 row_label = gtk_label_new(row_label_str);
 436                 gtk_label_set_use_markup(GTK_LABEL(row_label), TRUE);
 437                 gtk_misc_set_alignment(GTK_MISC(row_label), 1, 0.5);
 438                 gtk_table_attach(GTK_TABLE(table), row_label,
 439                                 0,1, rows-1,rows, GTK_FILL,GTK_FILL, 5,0);
 440
 441                 for (guint si = 0; si < vol->h.nsweeps; si++) {
 442                         Sweep *sweep = vol->sweep[si];
 443                         if (sweep == NULL || sweep->h.elev == 0) continue;
 444                         if (sweep->h.elev != elev) {
 445                                 cols++;
 446                                 elev = sweep->h.elev;
 447
 448                                 /* Column label */
 449                                 g_object_get(table, "n-columns", &cur_cols, NULL);
 450                                 if (cols >  cur_cols) {
 451                                         g_snprintf(col_label_str, 64, "<b>%.2f°</b>", elev);
 452                                         col_label = gtk_label_new(col_label_str);
 453                                         gtk_label_set_use_markup(GTK_LABEL(col_label), TRUE);
 454                                         gtk_widget_set_size_request(col_label, 50, -1);
 455                                         gtk_table_attach(GTK_TABLE(table), col_label,
 456                                                         cols-1,cols, 0,1, GTK_FILL,GTK_FILL, 0,0);
 457                                 }
 458
 459                                 elev_box = gtk_hbox_new(TRUE, 0);
 460                                 gtk_table_attach(GTK_TABLE(table), elev_box,
 461                                                 cols-1,cols, rows-1,rows, GTK_FILL,GTK_FILL, 0,0);
 462                         }
 463
 464
 465                         /* Button */
 466                         g_snprintf(button_str, 64, "%3.2f", elev);
 467                         button = gtk_radio_button_new_with_label_from_widget(
 468                                         GTK_RADIO_BUTTON(button), button_str);
 469                         gtk_widget_set_size_request(button, -1, 26);
 470                         //button = gtk_radio_button_new_from_widget(GTK_RADIO_BUTTON(button));
 471                         //gtk_widget_set_size_request(button, -1, 22);
 472                         g_object_set(button, "draw-indicator", FALSE, NULL);
 473                         gtk_box_pack_end(GTK_BOX(elev_box), button, TRUE, TRUE, 0);
 474
 475                         g_object_set_data(G_OBJECT(button), "level2", (gpointer)level2);
 476                         g_object_set_data(G_OBJECT(button), "type",   (gpointer)vi);
 477                         g_object_set_data(G_OBJECT(button), "elev",   (gpointer)(int)(elev*100));
 478                         g_signal_connect(button, "clicked", G_CALLBACK(_on_sweep_clicked), level2);
 479                 }
 480         }
 481
 482         /* Add Iso-surface volume */
 483         g_object_get(table, "n-columns", &cols, NULL);
 484         row_label = gtk_label_new("<b>Isosurface:</b>");
 485         gtk_label_set_use_markup(GTK_LABEL(row_label), TRUE);
 486         gtk_misc_set_alignment(GTK_MISC(row_label), 1, 0.5);
 487         gtk_table_attach(GTK_TABLE(table), row_label,
 488                         0,1, rows,rows+1, GTK_FILL,GTK_FILL, 5,0);
 489         GtkWidget *scale = gtk_hscale_new_with_range(ISO_MIN, ISO_MAX, 0.5);
 490         gtk_widget_set_size_request(scale, -1, 26);
 491         gtk_scale_set_value_pos(GTK_SCALE(scale), GTK_POS_LEFT);
 492         gtk_range_set_inverted(GTK_RANGE(scale), TRUE);
 493         gtk_range_set_value(GTK_RANGE(scale), ISO_MAX);
 494         g_signal_connect(scale, "value-changed", G_CALLBACK(_on_iso_changed), level2);
 495         gtk_table_attach(GTK_TABLE(table), scale,
 496                         1,cols+1, rows,rows+1, GTK_FILL|GTK_EXPAND,GTK_FILL, 0,0);
 497         /* Shove all the buttons to the left, but keep the slider expanded */
 498         gtk_table_attach(GTK_TABLE(table), gtk_label_new(""),
 499                         cols,cols+1, 0,1, GTK_FILL|GTK_EXPAND,GTK_FILL, 0,0);
 500         return table;
 501 }
 502
 503 /****************
 504  * GObject code *
 505  ****************/
 506 G_DEFINE_TYPE(AWeatherLevel2, aweather_level2, GRITS_TYPE_OBJECT);
 507 static void aweather_level2_init(AWeatherLevel2 *self)
 508 {
 509 }
 510 static void aweather_level2_finalize(GObject *_self)
 511 {
 512         AWeatherLevel2 *self = AWEATHER_LEVEL2(_self);
 513         g_debug("AWeatherLevel2: finalize - %p", _self);
 514         RSL_free_radar(self->radar);
 515         if (self->sweep_tex)
 516                 glDeleteTextures(1, &self->sweep_tex);
 517         G_OBJECT_CLASS(aweather_level2_parent_class)->finalize(_self);
 518 }
 519 static void aweather_level2_class_init(AWeatherLevel2Class *klass)
 520 {
 521         G_OBJECT_CLASS(klass)->finalize = aweather_level2_finalize;
 522         GRITS_OBJECT_CLASS(klass)->draw   = aweather_level2_draw;
 523 }