2 * Copyright (C) 2009 Andy Spencer <spenceal@rose-hulman.edu>
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.
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.
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/>.
20 #include <gtk/gtkgl.h>
27 #include "aweather-gui.h"
28 #include "plugin-radar.h"
32 static char *nexrad_base = "http://mesonet.agron.iastate.edu/data/";
38 static void aweather_radar_plugin_init(AWeatherPluginInterface *iface);
39 static void _aweather_radar_expose(AWeatherPlugin *_radar);
40 G_DEFINE_TYPE_WITH_CODE(AWeatherRadar, aweather_radar, G_TYPE_OBJECT,
41 G_IMPLEMENT_INTERFACE(AWEATHER_TYPE_PLUGIN,
42 aweather_radar_plugin_init));
43 static void aweather_radar_plugin_init(AWeatherPluginInterface *iface)
45 g_debug("AWeatherRadar: plugin_init");
46 /* Add methods to the interface */
47 iface->expose = _aweather_radar_expose;
49 /* Class/Object init */
50 static void aweather_radar_init(AWeatherRadar *radar)
52 g_debug("AWeatherRadar: class_init");
56 radar->cur_triangles = NULL;
57 radar->cur_num_triangles = 0;
59 static void aweather_radar_dispose(GObject *gobject)
61 g_debug("AWeatherRadar: dispose");
62 AWeatherRadar *self = AWEATHER_RADAR(gobject);
64 G_OBJECT_CLASS(aweather_radar_parent_class)->dispose(gobject);
66 static void aweather_radar_finalize(GObject *gobject)
68 g_debug("AWeatherRadar: finalize");
69 AWeatherRadar *self = AWEATHER_RADAR(gobject);
71 G_OBJECT_CLASS(aweather_radar_parent_class)->finalize(gobject);
74 static void aweather_radar_class_init(AWeatherRadarClass *klass)
76 g_debug("AWeatherRadar: class_init");
77 GObjectClass *gobject_class = (GObjectClass*)klass;
78 gobject_class->dispose = aweather_radar_dispose;
79 gobject_class->finalize = aweather_radar_finalize;
82 /**************************
83 * Data loading functions *
84 **************************/
85 /* Convert a sweep to an 2d array of data points */
86 static void bscan_sweep(AWeatherRadar *self, Sweep *sweep, colormap_t *colormap,
87 guint8 **data, int *width, int *height)
89 /* Calculate max number of bins */
91 for (int i = 0; i < sweep->h.nrays; i++)
92 max_bins = MAX(max_bins, sweep->ray[i]->h.nbins);
94 /* Allocate buffer using max number of bins for each ray */
95 guint8 *buf = g_malloc0(sweep->h.nrays * max_bins * 4);
98 for (int ri = 0; ri < sweep->h.nrays; ri++) {
99 Ray *ray = sweep->ray[ri];
100 for (int bi = 0; bi < ray->h.nbins; bi++) {
101 /* copy RGBA into buffer */
102 //guint val = dz_f(ray->range[bi]);
103 guint8 val = (guint8)ray->h.f(ray->range[bi]);
104 guint buf_i = (ri*max_bins+bi)*4;
105 buf[buf_i+0] = colormap->data[val][0];
106 buf[buf_i+1] = colormap->data[val][1];
107 buf[buf_i+2] = colormap->data[val][2];
108 buf[buf_i+3] = colormap->data[val][3]; // TESTING
109 if (val == BADVAL || val == RFVAL || val == APFLAG ||
110 val == NOTFOUND_H || val == NOTFOUND_V || val == NOECHO) {
111 buf[buf_i+3] = 0x00; // transparent
118 *height = sweep->h.nrays;
122 /* Load a sweep as the active texture */
123 static void load_sweep(AWeatherRadar *self, Sweep *sweep)
125 GisOpenGL *opengl = aweather_gui_get_opengl(self->gui);
126 gis_opengl_begin(opengl);
127 self->cur_sweep = sweep;
130 bscan_sweep(self, sweep, self->cur_colormap, &data, &width, &height);
131 glDeleteTextures(1, &self->cur_sweep_tex);
132 glGenTextures(1, &self->cur_sweep_tex);
133 glBindTexture(GL_TEXTURE_2D, self->cur_sweep_tex);
134 glPixelStorei(GL_PACK_ALIGNMENT, 1);
135 glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
136 glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
137 glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
138 glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, width, height, 0,
139 GL_RGBA, GL_UNSIGNED_BYTE, data);
141 gis_opengl_redraw(opengl);
142 gis_opengl_end(opengl);
145 static void load_colormap(AWeatherRadar *self, gchar *table)
147 /* Set colormap so we can draw it on expose */
148 for (int i = 0; colormaps[i].name; i++)
149 if (g_str_equal(colormaps[i].name, table))
150 self->cur_colormap = &colormaps[i];
153 /* Add selectors to the config area for the sweeps */
154 static void on_sweep_clicked(GtkRadioButton *button, gpointer _self);
155 static void load_radar_gui(AWeatherRadar *self, Radar *radar)
157 /* Clear existing items */
158 GtkWidget *child = gtk_bin_get_child(GTK_BIN(self->config_body));
160 gtk_widget_destroy(child);
163 guint rows = 1, cols = 1, cur_cols;
164 gchar row_label_str[64], col_label_str[64], button_str[64];
165 GtkWidget *row_label, *col_label, *button = NULL, *elev_box = NULL;
166 GtkWidget *table = gtk_table_new(rows, cols, FALSE);
168 for (guint vi = 0; vi < radar->h.nvolumes; vi++) {
169 Volume *vol = radar->v[vi];
170 if (vol == NULL) continue;
171 rows++; cols = 1; elev = 0;
174 g_snprintf(row_label_str, 64, "<b>%s:</b>", vol->h.type_str);
175 row_label = gtk_label_new(row_label_str);
176 gtk_label_set_use_markup(GTK_LABEL(row_label), TRUE);
177 gtk_misc_set_alignment(GTK_MISC(row_label), 1, 0.5);
178 gtk_table_attach(GTK_TABLE(table), row_label,
179 0,1, rows-1,rows, GTK_FILL,GTK_FILL, 5,0);
181 for (guint si = 0; si < vol->h.nsweeps; si++) {
182 Sweep *sweep = vol->sweep[si];
183 if (sweep == NULL || sweep->h.elev == 0) continue;
184 if (sweep->h.elev != elev) {
186 elev = sweep->h.elev;
189 g_object_get(table, "n-columns", &cur_cols, NULL);
190 if (cols > cur_cols) {
191 g_snprintf(col_label_str, 64, "<b>%.2f°</b>", elev);
192 col_label = gtk_label_new(col_label_str);
193 gtk_label_set_use_markup(GTK_LABEL(col_label), TRUE);
194 gtk_widget_set_size_request(col_label, 70, -1);
195 gtk_table_attach(GTK_TABLE(table), col_label,
196 cols-1,cols, 0,1, GTK_FILL,GTK_FILL, 0,0);
199 elev_box = gtk_hbox_new(TRUE, 0);
200 gtk_table_attach(GTK_TABLE(table), elev_box,
201 cols-1,cols, rows-1,rows, GTK_FILL,GTK_FILL, 0,0);
206 g_snprintf(button_str, 64, "%3.2f", elev);
207 button = gtk_radio_button_new_with_label_from_widget(
208 GTK_RADIO_BUTTON(button), button_str);
209 gtk_widget_set_size_request(button, -1, 26);
210 //button = gtk_radio_button_new_from_widget(GTK_RADIO_BUTTON(button));
211 //gtk_widget_set_size_request(button, -1, 22);
212 g_object_set(button, "draw-indicator", FALSE, NULL);
213 gtk_box_pack_end(GTK_BOX(elev_box), button, TRUE, TRUE, 0);
215 g_object_set_data(G_OBJECT(button), "type", vol->h.type_str);
216 g_object_set_data(G_OBJECT(button), "sweep", sweep);
217 g_signal_connect(button, "clicked", G_CALLBACK(on_sweep_clicked), self);
220 gtk_container_add(GTK_CONTAINER(self->config_body), table);
221 gtk_widget_show_all(table);
224 static void _aweather_radar_grid_set(GRIDCELL *grid, int gi, Ray *ray, int bi)
226 Range range = ray->range[bi];
228 double angle = d2r(ray->h.azimuth);
229 double tilt = d2r(ray->h.elev);
231 double lx = sin(angle);
232 double ly = cos(angle);
233 double lz = sin(tilt);
235 double dist = bi*ray->h.gate_size + ray->h.range_bin1;
237 grid->p[gi].x = lx*dist;
238 grid->p[gi].y = ly*dist;
239 grid->p[gi].z = lz*dist;
241 guint8 val = (guint8)ray->h.f(ray->range[bi]);
242 if (val == BADVAL || val == RFVAL || val == APFLAG ||
243 val == NOTFOUND_H || val == NOTFOUND_V || val == NOECHO ||
246 grid->val[gi] = (float)val;
247 //g_debug("(%.2f,%.2f,%.2f) - (%.0f,%.0f,%.0f) = %d",
248 // angle, tilt, dist,
255 /* Load a radar from a decompressed file */
256 static void load_radar(AWeatherRadar *self, gchar *radar_file)
258 char *dir = g_path_get_dirname(radar_file);
259 char *site = g_path_get_basename(dir);
261 g_debug("AWeatherRadar: load_radar - Loading new radar");
262 RSL_read_these_sweeps("all", NULL);
263 Radar *radar = self->cur_radar = RSL_wsr88d_to_radar(radar_file, site);
265 g_warning("fail to load radar: path=%s, site=%s", radar_file, site);
272 /* Load the surface */
273 if (self->cur_triangles) {
274 g_free(self->cur_triangles);
275 self->cur_triangles = NULL;
277 self->cur_num_triangles = 0;
279 for (guint vi = 0; vi < radar->h.nvolumes; vi++) {
280 if (radar->v[vi] == NULL) continue;
282 for (guint si = 0; si+1 < radar->v[vi]->h.nsweeps; si++) {
283 Sweep *sweep0 = radar->v[vi]->sweep[si+0];
284 Sweep *sweep1 = radar->v[vi]->sweep[si+1];
286 //g_debug("_aweather_radar_expose: sweep[%3d-%3d] -- nrays = %d, %d",
287 // si, si+1,sweep0->h.nrays, sweep1->h.nrays);
289 /* Skip super->regular resolution switch for now */
290 if (sweep0 == NULL || sweep0->h.elev == 0 ||
291 sweep1 == NULL || sweep1->h.elev == 0 ||
292 sweep0->h.nrays != sweep1->h.nrays)
295 /* We repack the arrays so that raysX[0] is always north, etc */
296 Ray **rays0 = g_malloc0(sizeof(Ray*)*sweep0->h.nrays);
297 Ray **rays1 = g_malloc0(sizeof(Ray*)*sweep1->h.nrays);
299 for (guint ri = 0; ri < sweep0->h.nrays; ri++)
300 rays0[(guint)(sweep0->ray[ri]->h.azimuth * sweep0->h.nrays / 360)] =
302 for (guint ri = 0; ri < sweep1->h.nrays; ri++)
303 rays1[(guint)(sweep1->ray[ri]->h.azimuth * sweep1->h.nrays / 360)] =
306 for (guint ri = 0; ri+x < sweep0->h.nrays; ri+=x) {
307 //g_debug("_aweather_radar_expose: ray[%3d-%3d] -- nbins = %d, %d, %d, %d",
309 // rays0[ri ]->h.nbins,
310 // rays0[ri+1]->h.nbins,
311 // rays1[ri ]->h.nbins,
312 // rays1[ri+1]->h.nbins);
314 for (guint bi = 0; bi+x < rays1[ri]->h.nbins; bi+=x) {
316 _aweather_radar_grid_set(&grid, 7, rays0[(ri )%sweep0->h.nrays], bi+x);
317 _aweather_radar_grid_set(&grid, 6, rays0[(ri+x)%sweep0->h.nrays], bi+x);
318 _aweather_radar_grid_set(&grid, 5, rays0[(ri+x)%sweep0->h.nrays], bi );
319 _aweather_radar_grid_set(&grid, 4, rays0[(ri )%sweep0->h.nrays], bi );
320 _aweather_radar_grid_set(&grid, 3, rays1[(ri )%sweep0->h.nrays], bi+x);
321 _aweather_radar_grid_set(&grid, 2, rays1[(ri+x)%sweep0->h.nrays], bi+x);
322 _aweather_radar_grid_set(&grid, 1, rays1[(ri+x)%sweep0->h.nrays], bi );
323 _aweather_radar_grid_set(&grid, 0, rays1[(ri )%sweep0->h.nrays], bi );
326 int n = march_one_cube(grid, 40, tris);
328 self->cur_triangles = g_realloc(self->cur_triangles,
329 (self->cur_num_triangles+n)*sizeof(TRIANGLE));
330 for (int i = 0; i < n; i++) {
331 //g_debug("triangle: ");
332 //g_debug("\t(%f,%f,%f)", tris[i].p[0].x, tris[i].p[0].y, tris[i].p[0].z);
333 //g_debug("\t(%f,%f,%f)", tris[i].p[1].x, tris[i].p[1].y, tris[i].p[1].z);
334 //g_debug("\t(%f,%f,%f)", tris[i].p[2].x, tris[i].p[2].y, tris[i].p[2].z);
335 self->cur_triangles[self->cur_num_triangles+i] = tris[i];
337 self->cur_num_triangles += n;
342 break; // Exit after first volume (reflectivity)
346 /* Load the first sweep by default */
347 if (radar->h.nvolumes < 1 || radar->v[0]->h.nsweeps < 1) {
348 g_warning("No sweeps found\n");
350 /* load first available sweep */
351 for (int vi = 0; vi < radar->h.nvolumes; vi++) {
352 if (radar->v[vi]== NULL) continue;
353 for (int si = 0; si < radar->v[vi]->h.nsweeps; si++) {
354 if (radar->v[vi]->sweep[si]== NULL) continue;
355 load_colormap(self, radar->v[vi]->h.type_str);
356 load_sweep(self, radar->v[vi]->sweep[si]);
363 load_radar_gui(self, radar);
366 /* TODO: These update times functions are getting ugly... */
367 static void update_times_gtk(AWeatherRadar *self, GList *times)
369 gchar *last_time = NULL;
370 GRegex *regex = g_regex_new("^[A-Z]{4}_([0-9]{8}_[0-9]{4})$", 0, 0, NULL); // KLSX_20090622_2113
373 GtkTreeView *tview = GTK_TREE_VIEW(aweather_gui_get_widget(self->gui, "time"));
374 GtkListStore *lstore = GTK_LIST_STORE(gtk_tree_view_get_model(tview));
375 gtk_list_store_clear(lstore);
377 times = g_list_reverse(times);
378 for (GList *cur = times; cur; cur = cur->next) {
379 g_message("trying time %s", (gchar*)cur->data);
380 if (g_regex_match(regex, cur->data, 0, &info)) {
381 gchar *time = g_match_info_fetch(info, 1);
382 g_message("adding time %s", (gchar*)cur->data);
383 gtk_list_store_insert(lstore, &iter, 0);
384 gtk_list_store_set(lstore, &iter, 0, time, -1);
389 GisView *view = aweather_gui_get_view(self->gui);
390 gis_view_set_time(view, last_time);
392 g_regex_unref(regex);
393 g_list_foreach(times, (GFunc)g_free, NULL);
396 static void update_times_online_cb(char *path, gboolean updated, gpointer _self)
401 g_file_get_contents(path, &data, &length, NULL);
402 gchar **lines = g_strsplit(data, "\n", -1);
403 for (int i = 0; lines[i] && lines[i][0]; i++) {
404 char **parts = g_strsplit(lines[i], " ", 2);
405 times = g_list_prepend(times, g_strdup(parts[1]));
411 update_times_gtk(_self, times);
413 static void update_times(AWeatherRadar *self, GisView *view, char *site)
415 GisWorld *world = aweather_gui_get_world(self->gui);
416 if (gis_world_get_offline(world)) {
418 gchar *path = g_build_filename(g_get_user_cache_dir(), PACKAGE, "nexrd2", "raw", site, NULL);
419 GDir *dir = g_dir_open(path, 0, NULL);
422 while ((name = g_dir_read_name(dir))) {
423 times = g_list_prepend(times, g_strdup(name));
428 update_times_gtk(self, times);
430 gchar *path = g_strdup_printf("nexrd2/raw/%s/dir.list", site);
431 cache_file(nexrad_base, path, AWEATHER_REFRESH, NULL, update_times_online_cb, self);
432 /* update_times_gtk from update_times_online_cb */
444 static void decompressed_cb(GPid pid, gint status, gpointer _udata)
446 decompressed_t *udata = _udata;
448 g_warning("wsr88ddec exited with status %d", status);
451 load_radar(udata->self, udata->radar_file);
452 g_spawn_close_pid(pid);
453 g_free(udata->radar_file);
457 static void cache_chunk_cb(char *path, goffset cur, goffset total, gpointer _self)
459 AWeatherRadar *self = AWEATHER_RADAR(_self);
460 double percent = (double)cur/total;
462 g_message("AWeatherRadar: cache_chunk_cb - %lld/%lld = %.2f%%",
463 cur, total, percent*100);
465 gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(self->progress_bar), MIN(percent, 1.0));
467 gchar *msg = g_strdup_printf("Loading radar... %5.1f%% (%.2f/%.2f MB)",
468 percent*100, (double)cur/1000000, (double)total/1000000);
469 gtk_label_set_text(GTK_LABEL(self->progress_label), msg);
473 static void cache_done_cb(char *path, gboolean updated, gpointer _self)
475 AWeatherRadar *self = AWEATHER_RADAR(_self);
476 char *decompressed = g_strconcat(path, ".raw", NULL);
478 load_radar(self, decompressed);
482 decompressed_t *udata = g_malloc(sizeof(decompressed_t));
484 udata->radar_file = decompressed;
485 g_debug("AWeatherRadar: cache_done_cb - File updated, decompressing..");
486 char *argv[] = {"wsr88ddec", path, decompressed, NULL};
488 GError *error = NULL;
490 NULL, // const gchar *working_directory,
491 argv, // gchar **argv,
492 NULL, // gchar **envp,
494 G_SPAWN_DO_NOT_REAP_CHILD,
495 // GSpawnFlags flags,
496 NULL, // GSpawnChildSetupFunc child_setup,
497 NULL, // gpointer user_data,
498 &pid, // GPid *child_pid,
499 &error); // GError **error
501 g_warning("failed to decompress WSR88D data: %s",
505 g_child_watch_add(pid, decompressed_cb, udata);
512 static void on_sweep_clicked(GtkRadioButton *button, gpointer _self)
514 AWeatherRadar *self = AWEATHER_RADAR(_self);
515 load_colormap(self, g_object_get_data(G_OBJECT(button), "type" ));
516 load_sweep (self, g_object_get_data(G_OBJECT(button), "sweep"));
519 static void on_time_changed(GisView *view, const char *time, gpointer _self)
521 AWeatherRadar *self = AWEATHER_RADAR(_self);
522 g_debug("AWeatherRadar: on_time_changed - setting time=%s", time);
523 // format: http://mesonet.agron.iastate.edu/data/nexrd2/raw/KABR/KABR_20090510_0323
524 char *site = gis_view_get_site(view);
525 char *path = g_strdup_printf("nexrd2/raw/%s/%s_%s", site, site, time);
527 /* Set up progress bar */
528 GtkWidget *child = gtk_bin_get_child(GTK_BIN(self->config_body));
529 if (child) gtk_widget_destroy(child);
531 GtkWidget *vbox = gtk_vbox_new(FALSE, 10);
532 gtk_container_set_border_width(GTK_CONTAINER(vbox), 10);
533 self->progress_bar = gtk_progress_bar_new();
534 self->progress_label = gtk_label_new("Loading radar...");
535 gtk_box_pack_start(GTK_BOX(vbox), self->progress_bar, FALSE, FALSE, 0);
536 gtk_box_pack_start(GTK_BOX(vbox), self->progress_label, FALSE, FALSE, 0);
537 gtk_container_add(GTK_CONTAINER(self->config_body), vbox);
538 gtk_widget_show_all(self->config_body);
542 RSL_free_radar(self->cur_radar);
543 self->cur_radar = NULL;
544 self->cur_sweep = NULL;
545 gis_opengl_redraw(aweather_gui_get_opengl(self->gui));
547 /* Start loading the new radar */
549 soup_session_abort(self->soup);
552 if (gis_world_get_offline(aweather_gui_get_world(self->gui)))
553 self->soup = cache_file(nexrad_base, path, AWEATHER_ONCE,
554 cache_chunk_cb, cache_done_cb, self);
556 self->soup = cache_file(nexrad_base, path, AWEATHER_UPDATE,
557 cache_chunk_cb, cache_done_cb, self);
561 static void on_site_changed(GisView *view, char *site, gpointer _self)
563 AWeatherRadar *self = AWEATHER_RADAR(_self);
564 g_debug("AWeatherRadar: on_site_changed - Loading wsr88d list for %s", site);
565 update_times(self, view, site);
568 static void on_refresh(GisWorld *world, gpointer _self)
570 AWeatherRadar *self = AWEATHER_RADAR(_self);
571 GisView *view = aweather_gui_get_view(AWEATHER_RADAR(_self)->gui);
572 char *site = gis_view_get_site(view);
573 update_times(self, view, site);
579 AWeatherRadar *aweather_radar_new(AWeatherGui *gui)
581 g_debug("AWeatherRadar: new");
582 AWeatherRadar *self = g_object_new(AWEATHER_TYPE_RADAR, NULL);
585 GtkWidget *config = aweather_gui_get_widget(gui, "tabs");
587 /* Add configuration tab */
588 self->config_body = gtk_alignment_new(0, 0, 1, 1);
589 gtk_container_set_border_width(GTK_CONTAINER(self->config_body), 5);
590 gtk_container_add(GTK_CONTAINER(self->config_body), gtk_label_new("No radar loaded"));
591 gtk_notebook_prepend_page(GTK_NOTEBOOK(config), self->config_body, gtk_label_new("Radar"));
593 /* Set up OpenGL Stuff */
594 GisView *view = aweather_gui_get_view(gui);
595 GisWorld *world = aweather_gui_get_world(gui);
596 g_signal_connect(view, "site-changed", G_CALLBACK(on_site_changed), self);
597 g_signal_connect(view, "time-changed", G_CALLBACK(on_time_changed), self);
598 g_signal_connect(world, "refresh", G_CALLBACK(on_refresh), self);
603 static void _aweather_radar_expose(AWeatherPlugin *_self)
605 AWeatherRadar *self = AWEATHER_RADAR(_self);
606 g_debug("AWeatherRadar: expose");
607 if (self->cur_sweep == NULL)
609 Sweep *sweep = self->cur_sweep;
612 /* Draw the surface */
613 glMatrixMode(GL_MODELVIEW);
615 glDisable(GL_TEXTURE_2D);
616 float light_ambient[] = {0.1f, 0.1f, 0.0f};
617 float light_diffuse[] = {0.9f, 0.9f, 0.9f};
618 float light_position[] = {-300000.0f, 500000.0f, 400000.0f, 1.0f};
619 glLightfv(GL_LIGHT0, GL_AMBIENT, light_ambient);
620 glLightfv(GL_LIGHT0, GL_DIFFUSE, light_diffuse);
621 glLightfv(GL_LIGHT0, GL_POSITION, light_position);
623 glEnable(GL_LIGHTING);
624 glEnable(GL_COLOR_MATERIAL);
625 glColor4f(1,1,1,0.75);
626 g_debug("ntri=%d", self->cur_num_triangles);
627 glBegin(GL_TRIANGLES);
628 for (int i = 0; i < self->cur_num_triangles; i++) {
629 TRIANGLE t = self->cur_triangles[i];
630 do_normal(t.p[0].x, t.p[0].y, t.p[0].z,
631 t.p[1].x, t.p[1].y, t.p[1].z,
632 t.p[2].x, t.p[2].y, t.p[2].z);
633 glVertex3f(t.p[0].x, t.p[0].y, t.p[0].z);
634 glVertex3f(t.p[1].x, t.p[1].y, t.p[1].z);
635 glVertex3f(t.p[2].x, t.p[2].y, t.p[2].z);
642 glDisable(GL_LIGHTING);
643 glDisable(GL_COLOR_MATERIAL);
644 glMatrixMode(GL_MODELVIEW);
646 glBindTexture(GL_TEXTURE_2D, self->cur_sweep_tex);
647 glEnable(GL_TEXTURE_2D);
648 glDisable(GL_ALPHA_TEST);
650 glBegin(GL_QUAD_STRIP);
651 for (int ri = 0; ri <= sweep->h.nrays; ri++) {
654 if (ri < sweep->h.nrays) {
655 ray = sweep->ray[ri];
656 angle = d2r(ray->h.azimuth - ((double)ray->h.beam_width/2.));
658 /* Do the right side of the last sweep */
659 ray = sweep->ray[ri-1];
660 angle = d2r(ray->h.azimuth + ((double)ray->h.beam_width/2.));
663 double lx = sin(angle);
664 double ly = cos(angle);
666 double near_dist = ray->h.range_bin1;
667 double far_dist = ray->h.nbins*ray->h.gate_size + ray->h.range_bin1;
669 /* (find middle of bin) / scale for opengl */
671 glTexCoord2f(0.0, (double)ri/sweep->h.nrays-0.01);
672 glVertex3f(lx*near_dist, ly*near_dist, 2.0);
675 // todo: correct range-height function
676 double height = sin(d2r(ray->h.elev)) * far_dist;
677 glTexCoord2f(1.0, (double)ri/sweep->h.nrays-0.01);
678 glVertex3f(lx*far_dist, ly*far_dist, height);
680 //g_print("ri=%d, nr=%d, bw=%f\n", _ri, sweep->h.nrays, sweep->h.beam_width);
686 //glTexCoord2d( 0., 0.); glVertex3f(-500., 0., 0.); // bot left
687 //glTexCoord2d( 0., 1.); glVertex3f(-500., 500., 0.); // top left
688 //glTexCoord2d( 1., 1.); glVertex3f( 0., 500., 3.); // top right
689 //glTexCoord2d( 1., 0.); glVertex3f( 0., 0., 3.); // bot right
692 /* Print the color table */
693 glDisable(GL_TEXTURE_2D);
694 glDisable(GL_DEPTH_TEST);
695 glMatrixMode(GL_MODELVIEW ); glPushMatrix(); glLoadIdentity();
696 glMatrixMode(GL_PROJECTION); glPushMatrix(); glLoadIdentity();
699 for (i = 0; i < 256; i++) {
700 glColor4ub(self->cur_colormap->data[i][0],
701 self->cur_colormap->data[i][1],
702 self->cur_colormap->data[i][2],
703 self->cur_colormap->data[i][3]);
704 glVertex3f(-1.0, (float)((i ) - 256/2)/(256/2), 0.0); // bot left
705 glVertex3f(-1.0, (float)((i+1) - 256/2)/(256/2), 0.0); // top left
706 glVertex3f(-0.9, (float)((i+1) - 256/2)/(256/2), 0.0); // top right
707 glVertex3f(-0.9, (float)((i ) - 256/2)/(256/2), 0.0); // bot right
710 glEnable(GL_DEPTH_TEST);
711 glEnable(GL_ALPHA_TEST);
712 glMatrixMode(GL_PROJECTION); glPopMatrix();
713 glMatrixMode(GL_MODELVIEW ); glPopMatrix();