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

   1 /*
   2  * Copyright (C) 2009-2011 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 <glib/gstdio.h>
  21 #include <grits.h>
  22 #include <rsl.h>
  23
  24 #include "level2.h"
  25
  26 #define ISO_MIN 30
  27 #define ISO_MAX 80
  28
  29 /**************************
  30  * Data loading functions *
  31  **************************/
  32 /* Convert a sweep to an 2d array of data points */
  33 static void _bscan_sweep(Sweep *sweep, AWeatherColormap *colormap,
  34                 guint8 **data, int *width, int *height)
  35 {
  36         g_debug("AWeatherLevel2: _bscan_sweep - %p, %p, %p",
  37                         sweep, colormap, data);
  38         /* Calculate max number of bins */
  39         int max_bins = 0;
  40         for (int i = 0; i < sweep->h.nrays; i++)
  41                 max_bins = MAX(max_bins, sweep->ray[i]->h.nbins);
  42
  43         /* Allocate buffer using max number of bins for each ray */
  44         guint8 *buf = g_malloc0(sweep->h.nrays * max_bins * 4);
  45
  46         /* Fill the data */
  47         for (int ri = 0; ri < sweep->h.nrays; ri++) {
  48                 Ray *ray  = sweep->ray[ri];
  49                 for (int bi = 0; bi < ray->h.nbins; bi++) {
  50                         guint  buf_i = (ri*max_bins+bi)*4;
  51                         float  value = ray->h.f(ray->range[bi]);
  52
  53                         /* Check for bad values */
  54                         if (value == BADVAL     || value == RFVAL      || value == APFLAG ||
  55                             value == NOTFOUND_H || value == NOTFOUND_V || value == NOECHO) {
  56                                 buf[buf_i+3] = 0x00; // transparent
  57                                 continue;
  58                         }
  59
  60                         /* Copy color to buffer */
  61                         guint8 *data = colormap_get(colormap, value);
  62                         buf[buf_i+0] = data[0];
  63                         buf[buf_i+1] = data[1];
  64                         buf[buf_i+2] = data[2];
  65                         buf[buf_i+3] = data[3]*0.75; // TESTING
  66                 }
  67         }
  68
  69         /* set output */
  70         *width  = max_bins;
  71         *height = sweep->h.nrays;
  72         *data   = buf;
  73 }
  74
  75 /* Load a sweep into an OpenGL texture */
  76 static void _load_sweep_gl(AWeatherLevel2 *level2)
  77 {
  78         g_debug("AWeatherLevel2: _load_sweep_gl");
  79         guint8 *data;
  80         gint width, height;
  81         _bscan_sweep(level2->sweep, level2->sweep_colors, &data, &width, &height);
  82         gint tex_width  = pow(2, ceil(log(width )/log(2)));
  83         gint tex_height = pow(2, ceil(log(height)/log(2)));
  84         level2->sweep_coords[0] = (double)width  / tex_width;
  85         level2->sweep_coords[1] = (double)height / tex_height;
  86
  87         if (!level2->sweep_tex)
  88                  glGenTextures(1, &level2->sweep_tex);
  89         glBindTexture(GL_TEXTURE_2D, level2->sweep_tex);
  90         glPixelStorei(GL_PACK_ALIGNMENT, 1);
  91         glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
  92         glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, tex_width, tex_height, 0,
  93                         GL_RGBA, GL_UNSIGNED_BYTE, NULL);
  94         glTexSubImage2D(GL_TEXTURE_2D, 0, 0,0, width,height,
  95                         GL_RGBA, GL_UNSIGNED_BYTE, data);
  96         glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
  97         glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
  98
  99         g_free(data);
 100 }
 101
 102 /* Decompress a radar file using wsr88dec */
 103 static gboolean _decompress_radar(const gchar *file, const gchar *raw)
 104 {
 105         g_debug("AWeatherLevel2: _decompress_radar - \n\t%s\n\t%s", file, raw);
 106         char *argv[] = {"wsr88ddec", (gchar*)file, (gchar*)raw, NULL};
 107         gint status;
 108         GError *error = NULL;
 109         g_spawn_sync(
 110                 NULL,    // const gchar *working_directory
 111                 argv,    // gchar **argv
 112                 NULL,    // gchar **envp
 113                 G_SPAWN_SEARCH_PATH, // GSpawnFlags flags
 114                 NULL,    // GSpawnChildSetupFunc child_setup
 115                 NULL,    // gpointer user_data
 116                 NULL,    // gchar *standard_output
 117                 NULL,    // gchar *standard_output
 118                 &status, // gint *exit_status
 119                 &error); // GError **error
 120         if (error) {
 121                 g_warning("AWeatherLevel2: _decompress_radar - %s", error->message);
 122                 g_error_free(error);
 123                 return FALSE;
 124         }
 125         if (status != 0) {
 126                 gchar *msg = g_strdup_printf("wsr88ddec exited with status %d", status);
 127                 g_warning("AWeatherLevel2: _decompress_radar - %s", msg);
 128                 g_free(msg);
 129                 return FALSE;
 130         }
 131         return TRUE;
 132 }
 133
 134 /* Load the radar into a Grits Volume */
 135 static void _cart_to_sphere(VolCoord *out, VolCoord *in)
 136 {
 137         gdouble angle = in->x;
 138         gdouble dist  = in->y;
 139         gdouble tilt  = in->z;
 140         gdouble lx    = sin(angle);
 141         gdouble ly    = cos(angle);
 142         gdouble lz    = sin(tilt);
 143         //out->x = (ly*dist)/20000;
 144         //out->y = (lz*dist)/10000-0.5;
 145         //out->z = (lx*dist)/20000-1.5;
 146         out->x = (lx*dist);
 147         out->y = (ly*dist);
 148         out->z = (lz*dist);
 149 }
 150
 151 static VolGrid *_load_grid(Volume *vol)
 152 {
 153         g_debug("AWeatherLevel2: _load_grid");
 154
 155         Sweep *sweep   = vol->sweep[0];
 156         Ray   *ray     = sweep->ray[0];
 157         gint nsweeps   = vol->h.nsweeps;
 158         gint nrays     = sweep->h.nrays/(1/sweep->h.beam_width)+1;
 159         gint nbins     = ray->h.nbins  /(1000/ray->h.gate_size);
 160         nbins = MIN(nbins, 150);
 161
 162         VolGrid  *grid = vol_grid_new(nrays, nbins, nsweeps);
 163
 164         gint rs, bs, val;
 165         gint si=0, ri=0, bi=0;
 166         for (si = 0; si < nsweeps; si++) {
 167                 sweep = vol->sweep[si];
 168                 rs    = 1.0/sweep->h.beam_width;
 169         for (ri = 0; ri < nrays; ri++) {
 170                 /* TODO: missing rays, pick ri based on azmith */
 171                 ray   = sweep->ray[(ri*rs) % sweep->h.nrays];
 172                 bs    = 1000/ray->h.gate_size;
 173         for (bi = 0; bi < nbins; bi++) {
 174                 if (bi*bs >= ray->h.nbins)
 175                         break;
 176                 val   = ray->h.f(ray->range[bi*bs]);
 177                 if (val == BADVAL     || val == RFVAL      ||
 178                     val == APFLAG     || val == NOECHO     ||
 179                     val == NOTFOUND_H || val == NOTFOUND_V ||
 180                     val > 80)
 181                         val = 0;
 182                 VolPoint *point = vol_grid_get(grid, ri, bi, si);
 183                 point->value = val;
 184                 point->c.x = deg2rad(ray->h.azimuth);
 185                 point->c.y = bi*bs*ray->h.gate_size + ray->h.range_bin1;
 186                 point->c.z = deg2rad(ray->h.elev);
 187         } } }
 188
 189         for (si = 0; si < nsweeps; si++)
 190         for (ri = 0; ri < nrays; ri++)
 191         for (bi = 0; bi < nbins; bi++) {
 192                 VolPoint *point = vol_grid_get(grid, ri, bi, si);
 193                 if (point->c.y == 0)
 194                         point->value = nan("");
 195                 else
 196                         _cart_to_sphere(&point->c, &point->c);
 197         }
 198         return grid;
 199 }
 200
 201
 202 /*********************
 203  * Drawing functions *
 204  *********************/
 205 void aweather_level2_draw(GritsObject *_level2, GritsOpenGL *opengl)
 206 {
 207         AWeatherLevel2 *level2 = AWEATHER_LEVEL2(_level2);
 208         if (!level2->sweep || !level2->sweep_tex)
 209                 return;
 210
 211         /* Draw wsr88d */
 212         Sweep *sweep = level2->sweep;
 213         //glDisable(GL_ALPHA_TEST);
 214         glDisable(GL_CULL_FACE);
 215         glDisable(GL_LIGHTING);
 216         glEnable(GL_TEXTURE_2D);
 217         glEnable(GL_POLYGON_OFFSET_FILL);
 218         glPolygonOffset(1.0, -2.0);
 219         glColor4f(1,1,1,1);
 220
 221         /* Draw the rays */
 222         gdouble xscale = level2->sweep_coords[0];
 223         gdouble yscale = level2->sweep_coords[1];
 224         glBindTexture(GL_TEXTURE_2D, level2->sweep_tex);
 225         glBegin(GL_TRIANGLE_STRIP);
 226         for (int ri = 0; ri <= sweep->h.nrays; ri++) {
 227                 Ray  *ray = NULL;
 228                 double angle = 0;
 229                 if (ri < sweep->h.nrays) {
 230                         ray = sweep->ray[ri];
 231                         angle = deg2rad(ray->h.azimuth - ((double)ray->h.beam_width/2.));
 232                 } else {
 233                         /* Do the right side of the last sweep */
 234                         ray = sweep->ray[ri-1];
 235                         angle = deg2rad(ray->h.azimuth + ((double)ray->h.beam_width/2.));
 236                 }
 237
 238                 double lx = sin(angle);
 239                 double ly = cos(angle);
 240
 241                 double near_dist = ray->h.range_bin1 - ((double)ray->h.gate_size/2.);
 242                 double far_dist  = near_dist + (double)ray->h.nbins*ray->h.gate_size;
 243
 244                 /* (find middle of bin) / scale for opengl */
 245                 // near left
 246                 glTexCoord2f(0.0, ((double)ri/sweep->h.nrays)*yscale);
 247                 glVertex3f(lx*near_dist, ly*near_dist, 2.0);
 248
 249                 // far  left
 250                 // todo: correct range-height function
 251                 double height = sin(deg2rad(ray->h.elev)) * far_dist;
 252                 glTexCoord2f(xscale, ((double)ri/sweep->h.nrays)*yscale);
 253                 glVertex3f(lx*far_dist,  ly*far_dist, height);
 254         }
 255         glEnd();
 256         //g_print("ri=%d, nr=%d, bw=%f\n", _ri, sweep->h.nrays, sweep->h.beam_width);
 257
 258         /* Texture debug */
 259         //glBegin(GL_QUADS);
 260         //glTexCoord2d( 0.,  0.); glVertex3f(-500.,   0., 0.); // bot left
 261         //glTexCoord2d( 0.,  1.); glVertex3f(-500., 500., 0.); // top left
 262         //glTexCoord2d( 1.,  1.); glVertex3f( 0.,   500., 3.); // top right
 263         //glTexCoord2d( 1.,  0.); glVertex3f( 0.,     0., 3.); // bot right
 264         //glEnd();
 265 }
 266
 267 void aweather_level2_hide(GritsObject *_level2, gboolean hidden)
 268 {
 269         AWeatherLevel2 *level2 = AWEATHER_LEVEL2(_level2);
 270         if (level2->volume)
 271                 grits_object_hide(GRITS_OBJECT(level2->volume), hidden);
 272 }
 273
 274
 275 /***********
 276  * Methods *
 277  ***********/
 278 static gboolean _set_sweep_cb(gpointer _level2)
 279 {
 280         g_debug("AWeatherLevel2: _set_sweep_cb");
 281         AWeatherLevel2 *level2 = _level2;
 282         _load_sweep_gl(level2);
 283         grits_object_queue_draw(_level2);
 284         g_object_unref(level2);
 285         return FALSE;
 286 }
 287 void aweather_level2_set_sweep(AWeatherLevel2 *level2,
 288                 int type, float elev)
 289 {
 290         g_debug("AWeatherLevel2: set_sweep - %d %f", type, elev);
 291
 292         /* Find sweep */
 293         Volume *volume = RSL_get_volume(level2->radar, type);
 294         if (!volume) return;
 295         level2->sweep = RSL_get_closest_sweep(volume, elev, 90);
 296         if (!level2->sweep) return;
 297
 298         /* Find colormap */
 299         level2->sweep_colors = NULL;
 300         for (int i = 0; level2->colormap[i].file; i++)
 301                 if (level2->colormap[i].type == type)
 302                         level2->sweep_colors = &level2->colormap[i];
 303         if (!level2->sweep_colors) {
 304                 g_warning("AWeatherLevel2: set_sweep - missing colormap[%d]", type);
 305                 level2->sweep_colors = &level2->colormap[0];
 306         }
 307
 308         /* Load data */
 309         g_object_ref(level2);
 310         g_idle_add(_set_sweep_cb, level2);
 311 }
 312
 313 void aweather_level2_set_iso(AWeatherLevel2 *level2, gfloat level)
 314 {
 315         g_debug("AWeatherLevel2: set_iso - %f", level);
 316
 317         if (!level2->volume) {
 318                 g_debug("AWeatherLevel2: set_iso - creating new volume");
 319                 Volume      *rvol = RSL_get_volume(level2->radar, DZ_INDEX);
 320                 VolGrid     *grid = _load_grid(rvol);
 321                 GritsVolume *vol  = grits_volume_new(grid);
 322                 vol->proj = GRITS_VOLUME_CARTESIAN;
 323                 vol->disp = GRITS_VOLUME_SURFACE;
 324                 GRITS_OBJECT(vol)->center = GRITS_OBJECT(level2)->center;
 325                 grits_viewer_add(GRITS_OBJECT(level2)->viewer,
 326                                 GRITS_OBJECT(vol), GRITS_LEVEL_WORLD+5, TRUE);
 327                 level2->volume = vol;
 328         }
 329         if (ISO_MIN < level && level < ISO_MAX) {
 330                 guint8 *data = colormap_get(&level2->colormap[0], level);
 331                 level2->volume->color[0] = data[0];
 332                 level2->volume->color[1] = data[1];
 333                 level2->volume->color[2] = data[2];
 334                 level2->volume->color[3] = data[3];
 335                 grits_volume_set_level(level2->volume, level);
 336                 grits_object_hide(GRITS_OBJECT(level2->volume), FALSE);
 337         } else {
 338                 grits_object_hide(GRITS_OBJECT(level2->volume), TRUE);
 339         }
 340 }
 341
 342 AWeatherLevel2 *aweather_level2_new(Radar *radar, AWeatherColormap *colormap)
 343 {
 344         g_debug("AWeatherLevel2: new - %s", radar->h.radar_name);
 345         RSL_sort_radar(radar);
 346         AWeatherLevel2 *level2 = g_object_new(AWEATHER_TYPE_LEVEL2, NULL);
 347         level2->radar    = radar;
 348         level2->colormap = colormap;
 349         aweather_level2_set_sweep(level2, DZ_INDEX, 0);
 350
 351         GritsPoint center;
 352         Radar_header *h = &radar->h;
 353         center.lat  = (double)h->latd + (double)h->latm/60 + (double)h->lats/(60*60);
 354         center.lon  = (double)h->lond + (double)h->lonm/60 + (double)h->lons/(60*60);
 355         center.elev = h->height;
 356         GRITS_OBJECT(level2)->center = center;
 357         return level2;
 358 }
 359
 360 AWeatherLevel2 *aweather_level2_new_from_file(const gchar *file, const gchar *site,
 361                 AWeatherColormap *colormap)
 362 {
 363         g_debug("AWeatherLevel2: new_from_file %s %s", site, file);
 364
 365         /* Decompress radar */
 366         gchar *raw = g_strconcat(file, ".raw", NULL);
 367         if (g_file_test(raw, G_FILE_TEST_EXISTS)) {
 368                 struct stat files, raws;
 369                 g_stat(file, &files);
 370                 g_stat(raw,  &raws);
 371                 if (files.st_mtime > raws.st_mtime)
 372                         if (!_decompress_radar(file, raw))
 373                                 return NULL;
 374         } else {
 375                 if (!_decompress_radar(file, raw))
 376                         return NULL;
 377         }
 378
 379         /* Load the radar file */
 380         RSL_read_these_sweeps("all", NULL);
 381         g_debug("AWeatherLevel2: rsl read start");
 382         Radar *radar = RSL_wsr88d_to_radar(raw, (gchar*)site);
 383         g_debug("AWeatherLevel2: rsl read done");
 384         g_free(raw);
 385         if (!radar)
 386                 return NULL;
 387
 388         return aweather_level2_new(radar, colormaps);
 389 }
 390
 391 static void _on_sweep_clicked(GtkRadioButton *button, gpointer _level2)
 392 {
 393         AWeatherLevel2 *level2 = _level2;
 394         if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(button))) {
 395                 gint type = (glong)g_object_get_data(G_OBJECT(button), "type");
 396                 gint elev = (glong)g_object_get_data(G_OBJECT(button), "elev");
 397                 aweather_level2_set_sweep(level2, type, (float)elev/100);
 398                 //level2->colormap = level2->sweep_colors;
 399         }
 400 }
 401
 402 static void _on_iso_changed(GtkRange *range, gpointer _level2)
 403 {
 404         AWeatherLevel2 *level2 = _level2;
 405         gfloat level = gtk_range_get_value(range);
 406         aweather_level2_set_iso(level2, level);
 407 }
 408
 409 GtkWidget *aweather_level2_get_config(AWeatherLevel2 *level2)
 410 {
 411         Radar *radar = level2->radar;
 412         g_debug("AWeatherLevel2: get_config - %p, %p", level2, radar);
 413         /* Clear existing items */
 414         gfloat elev;
 415         guint rows = 1, cols = 1, cur_cols;
 416         gchar row_label_str[64], col_label_str[64], button_str[64];
 417         GtkWidget *row_label, *col_label, *button = NULL, *elev_box = NULL;
 418         GtkWidget *table = gtk_table_new(rows, cols, FALSE);
 419
 420         /* Add date */
 421         gchar *date_str = g_strdup_printf("<b><i>%04d-%02d-%02d %02d:%02d</i></b>",
 422                         radar->h.year, radar->h.month, radar->h.day,
 423                         radar->h.hour, radar->h.minute);
 424         GtkWidget *date_label = gtk_label_new(date_str);
 425         gtk_label_set_use_markup(GTK_LABEL(date_label), TRUE);
 426         gtk_table_attach(GTK_TABLE(table), date_label,
 427                         0,1, 0,1, GTK_FILL,GTK_FILL, 5,0);
 428         g_free(date_str);
 429
 430         /* Add sweeps */
 431         for (guint vi = 0; vi < radar->h.nvolumes; vi++) {
 432                 Volume *vol = radar->v[vi];
 433                 if (vol == NULL) continue;
 434                 rows++; cols = 1; elev = 0;
 435
 436                 /* Row label */
 437                 g_snprintf(row_label_str, 64, "<b>%s:</b>", vol->h.type_str);
 438                 row_label = gtk_label_new(row_label_str);
 439                 gtk_label_set_use_markup(GTK_LABEL(row_label), TRUE);
 440                 gtk_misc_set_alignment(GTK_MISC(row_label), 1, 0.5);
 441                 gtk_table_attach(GTK_TABLE(table), row_label,
 442                                 0,1, rows-1,rows, GTK_FILL,GTK_FILL, 5,0);
 443
 444                 for (guint si = 0; si < vol->h.nsweeps; si++) {
 445                         Sweep *sweep = vol->sweep[si];
 446                         if (sweep == NULL || sweep->h.elev == 0) continue;
 447                         if (sweep->h.elev != elev) {
 448                                 cols++;
 449                                 elev = sweep->h.elev;
 450
 451                                 /* Column label */
 452                                 g_object_get(table, "n-columns", &cur_cols, NULL);
 453                                 if (cols >  cur_cols) {
 454                                         g_snprintf(col_label_str, 64, "<b>%.2f°</b>", elev);
 455                                         col_label = gtk_label_new(col_label_str);
 456                                         gtk_label_set_use_markup(GTK_LABEL(col_label), TRUE);
 457                                         gtk_widget_set_size_request(col_label, 50, -1);
 458                                         gtk_table_attach(GTK_TABLE(table), col_label,
 459                                                         cols-1,cols, 0,1, GTK_FILL,GTK_FILL, 0,0);
 460                                 }
 461
 462                                 elev_box = gtk_hbox_new(TRUE, 0);
 463                                 gtk_table_attach(GTK_TABLE(table), elev_box,
 464                                                 cols-1,cols, rows-1,rows, GTK_FILL,GTK_FILL, 0,0);
 465                         }
 466
 467
 468                         /* Button */
 469                         g_snprintf(button_str, 64, "%3.2f", elev);
 470                         button = gtk_radio_button_new_with_label_from_widget(
 471                                         GTK_RADIO_BUTTON(button), button_str);
 472                         gtk_widget_set_size_request(button, -1, 26);
 473                         //button = gtk_radio_button_new_from_widget(GTK_RADIO_BUTTON(button));
 474                         //gtk_widget_set_size_request(button, -1, 22);
 475                         g_object_set(button, "draw-indicator", FALSE, NULL);
 476                         gtk_box_pack_end(GTK_BOX(elev_box), button, TRUE, TRUE, 0);
 477
 478                         g_object_set_data(G_OBJECT(button), "level2", level2);
 479                         g_object_set_data(G_OBJECT(button), "type", (gpointer)(guintptr)vi);
 480                         g_object_set_data(G_OBJECT(button), "elev", (gpointer)(guintptr)(elev*100));
 481                         g_signal_connect(button, "clicked", G_CALLBACK(_on_sweep_clicked), level2);
 482                 }
 483         }
 484
 485         /* Add Iso-surface volume */
 486         g_object_get(table, "n-columns", &cols, NULL);
 487         row_label = gtk_label_new("<b>Isosurface:</b>");
 488         gtk_label_set_use_markup(GTK_LABEL(row_label), TRUE);
 489         gtk_misc_set_alignment(GTK_MISC(row_label), 1, 0.5);
 490         gtk_table_attach(GTK_TABLE(table), row_label,
 491                         0,1, rows,rows+1, GTK_FILL,GTK_FILL, 5,0);
 492         GtkWidget *scale = gtk_hscale_new_with_range(ISO_MIN, ISO_MAX, 0.5);
 493         gtk_widget_set_size_request(scale, -1, 26);
 494         gtk_scale_set_value_pos(GTK_SCALE(scale), GTK_POS_LEFT);
 495         gtk_range_set_inverted(GTK_RANGE(scale), TRUE);
 496         gtk_range_set_value(GTK_RANGE(scale), ISO_MAX);
 497         g_signal_connect(scale, "value-changed", G_CALLBACK(_on_iso_changed), level2);
 498         gtk_table_attach(GTK_TABLE(table), scale,
 499                         1,cols+1, rows,rows+1, GTK_FILL|GTK_EXPAND,GTK_FILL, 0,0);
 500         /* Shove all the buttons to the left, but keep the slider expanded */
 501         gtk_table_attach(GTK_TABLE(table), gtk_label_new(""),
 502                         cols,cols+1, 0,1, GTK_FILL|GTK_EXPAND,GTK_FILL, 0,0);
 503         return table;
 504 }
 505
 506 /****************
 507  * GObject code *
 508  ****************/
 509 G_DEFINE_TYPE(AWeatherLevel2, aweather_level2, GRITS_TYPE_OBJECT);
 510 static void aweather_level2_init(AWeatherLevel2 *level2)
 511 {
 512 }
 513 static void aweather_level2_dispose(GObject *_level2)
 514 {
 515         AWeatherLevel2 *level2 = AWEATHER_LEVEL2(_level2);
 516         g_debug("AWeatherLevel2: dispose - %p", _level2);
 517         if (level2->volume) {
 518                 grits_viewer_remove(GRITS_OBJECT(level2->volume)->viewer,
 519                                 GRITS_OBJECT(level2->volume));
 520                 level2->volume = NULL;
 521         }
 522         G_OBJECT_CLASS(aweather_level2_parent_class)->dispose(_level2);
 523 }
 524 static void aweather_level2_finalize(GObject *_level2)
 525 {
 526         AWeatherLevel2 *level2 = AWEATHER_LEVEL2(_level2);
 527         g_debug("AWeatherLevel2: finalize - %p", _level2);
 528         RSL_free_radar(level2->radar);
 529         if (level2->sweep_tex)
 530                 glDeleteTextures(1, &level2->sweep_tex);
 531         G_OBJECT_CLASS(aweather_level2_parent_class)->finalize(_level2);
 532 }
 533 static void aweather_level2_class_init(AWeatherLevel2Class *klass)
 534 {
 535         G_OBJECT_CLASS(klass)->dispose  = aweather_level2_dispose;
 536         G_OBJECT_CLASS(klass)->finalize = aweather_level2_finalize;
 537         GRITS_OBJECT_CLASS(klass)->draw = aweather_level2_draw;
 538         GRITS_OBJECT_CLASS(klass)->hide = aweather_level2_hide;
 539 }