static gboolean expose_start(GtkWidget *da, GdkEventExpose *event, gpointer user_data)
{
- GdkGLContext *glcontext = gtk_widget_get_gl_context (da);
- GdkGLDrawable *gldrawable = gtk_widget_get_gl_drawable (da);
+ GdkGLContext *glcontext = gtk_widget_get_gl_context(da);
+ GdkGLDrawable *gldrawable = gtk_widget_get_gl_drawable(da);
- if (!gdk_gl_drawable_gl_begin (gldrawable, glcontext)) {
- g_assert_not_reached ();
+ if (!gdk_gl_drawable_gl_begin(gldrawable, glcontext)) {
+ g_assert_not_reached();
}
/* draw in here */
/* Plugins run stuff here */
static gboolean expose_end(GtkWidget *da, GdkEventExpose *event, gpointer user_data)
{
- GdkGLContext *glcontext = gtk_widget_get_gl_context (da);
- GdkGLDrawable *gldrawable = gtk_widget_get_gl_drawable (da);
+ GdkGLContext *glcontext = gtk_widget_get_gl_context(da);
+ GdkGLDrawable *gldrawable = gtk_widget_get_gl_drawable(da);
- if (gdk_gl_drawable_is_double_buffered (gldrawable))
- gdk_gl_drawable_swap_buffers (gldrawable);
+ if (gdk_gl_drawable_is_double_buffered(gldrawable))
+ gdk_gl_drawable_swap_buffers(gldrawable);
else
- glFlush ();
+ glFlush();
- gdk_gl_drawable_gl_end (gldrawable);
+ gdk_gl_drawable_gl_end(gldrawable);
return FALSE;
}
static gboolean configure(GtkWidget *da, GdkEventConfigure *event, gpointer user_data)
{
- GdkGLContext *glcontext = gtk_widget_get_gl_context (da);
- GdkGLDrawable *gldrawable = gtk_widget_get_gl_drawable (da);
+ GdkGLContext *glcontext = gtk_widget_get_gl_context(da);
+ GdkGLDrawable *gldrawable = gtk_widget_get_gl_drawable(da);
- if (!gdk_gl_drawable_gl_begin (gldrawable, glcontext))
- g_assert_not_reached ();
+ if (!gdk_gl_drawable_gl_begin(gldrawable, glcontext))
+ g_assert_not_reached();
glLoadIdentity();
- glViewport (0, 0, da->allocation.width, da->allocation.height);
- glOrtho (-10,10,-10,10,-20050,10000);
- glEnable (GL_BLEND);
- glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+ glViewport(0, 0, da->allocation.width, da->allocation.height);
+ glOrtho(-10,10,-10,10,-20050,10000);
+ glEnable(GL_BLEND);
+ glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
- glScalef (10., 10., 10.);
+ glScalef(10., 10., 10.);
- gdk_gl_drawable_gl_end (gldrawable);
+ gdk_gl_drawable_gl_end(gldrawable);
- return TRUE;
+ return FALSE;
}
gboolean opengl_init(GtkDrawingArea *drawing, GtkNotebook *config)
#include "radar.h"
-static GtkWidget *rotate_button;
-static Radar *radar;
-static Sweep *sweep;
+GtkWidget *drawing;
+static Sweep *cur_sweep; // make this not global
static int nred, ngreen, nblue;
-static unsigned char red[256], green[256], blue[256];
+static guint8 red[256], green[256], blue[256];
-static gboolean expose(GtkWidget *da, GdkEventExpose *event, gpointer user_data)
+/* Convert a sweep to an 2d array of data points */
+static void bscan_sweep(Sweep *sweep, guint8 **data, int *width, int *height)
{
- GdkGLContext *glcontext = gtk_widget_get_gl_context (da);
- GdkGLDrawable *gldrawable = gtk_widget_get_gl_drawable (da);
+ /* Calculate max number of bins */
+ int i, max_bins = 0;
+ for (i = 0; i < sweep->h.nrays; i++)
+ max_bins = MAX(max_bins, sweep->ray[i]->h.nbins);
+
+ /* Allocate buffer using max number of bins for each ray */
+ char *buf = g_malloc0(sweep->h.nrays * max_bins * 3);
+
+ /* Fill the data */
+ int ri, bi;
+ for (ri = 0; ri < sweep->h.nrays; ri++) {
+ Ray *ray = sweep->ray[ri];
+ for (bi = 0; bi < ray->h.nbins; bi++) {
+ Range bin = ray->range[bi];
+ /* copy RGB into buffer */
+ buf[(ri*max_bins+bi)*3+0] = red[(guint8)ray->h.f(bin)];
+ buf[(ri*max_bins+bi)*3+1] = green[(guint8)ray->h.f(bin)];
+ buf[(ri*max_bins+bi)*3+2] = blue[(guint8)ray->h.f(bin)];
+ }
+ }
- /* draw in here */
- glPushMatrix();
-
- glRotatef(0, 0, 0, 0);
+ /* set output */
+ *width = max_bins;
+ *height = sweep->h.nrays;
+ *data = buf;
+
+ /* debug */
+ //static int fi = 0;
+ //char fname[128];
+ //sprintf(fname, "image-%d.ppm", fi);
+ //FILE *fp = fopen(fname, "w+");
+ //fprintf(fp, "P6\n");
+ //fprintf(fp, "# Foo\n");
+ //fprintf(fp, "%d %d\n", *width, *height);
+ //fprintf(fp, "255\n");
+ //fwrite(buf, 3, *width * *height, fp);
+ //fclose(fp);
+ //fi++;
+}
+
+/* Load a sweep as the active texture */
+static void load_sweep(Sweep *sweep)
+{
+ cur_sweep = sweep;
+ int height, width;
+ guint8 *data;
+ bscan_sweep(sweep, &data, &width, &height);
+ glEnable(GL_TEXTURE_2D);
+ glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB8, width, height, 0, GL_RGB, GL_UNSIGNED_BYTE, data);
+ free(data);
+ gdk_window_invalidate_rect(drawing->window, &drawing->allocation, FALSE);
+}
- glShadeModel(GL_FLAT);
+/* Load the default sweep */
+static gboolean configure(GtkWidget *da, GdkEventConfigure *event, gpointer user_data)
+{
+ GdkGLContext *glcontext = gtk_widget_get_gl_context(da);
+ GdkGLDrawable *gldrawable = gtk_widget_get_gl_drawable(da);
- glBegin(GL_QUADS);
+ if (!gdk_gl_drawable_gl_begin(gldrawable, glcontext))
+ g_assert_not_reached();
- int rayi;
- for (rayi = 0; rayi < sweep->h.nrays; rayi++) {
- Ray *ray = sweep->ray[rayi];
-
- /* right and left with respect to north */
- double right = ((ray->h.azimuth + ray->h.beam_width)*M_PI)/180.0;
- double left = ((ray->h.azimuth - ray->h.beam_width)*M_PI)/180.0;
-
- double rx = sin(right), ry = cos(right);
- double lx = sin(left), ly = cos(left);
-
- int nbins = ray->h.nbins;
- //int nbins = 20;
- int max_dist = nbins * ray->h.gate_size + ray->h.range_bin1;
- int bini, dist = ray->h.range_bin1;
- for (bini = 0; bini < nbins; bini++, dist += ray->h.gate_size) {
- if (ray->range[bini] == BADVAL) continue;
-
- /* (find middle of bin) / scale for opengl */
- double nd = ((double)dist - ((double)ray->h.gate_size)/2.) / (double)max_dist;
- double fd = ((double)dist + ((double)ray->h.gate_size)/2.) / (double)max_dist;
-
- glColor3ub(
- red[(unsigned char)ray->h.f(ray->range[bini])],
- green[(unsigned char)ray->h.f(ray->range[bini])],
- blue[(unsigned char)ray->h.f(ray->range[bini])]
- );
-
- glVertex3f(lx*nd, ly*nd, 0.); // near left
- glVertex3f(lx*fd, ly*fd, 0.); // far left
- glVertex3f(rx*fd, ry*fd, 0.); // far right
- glVertex3f(rx*nd, ry*nd, 0.); // near right
+ /* Load the texture */
+ load_sweep(cur_sweep);
- }
+ gdk_gl_drawable_gl_end(gldrawable);
- g_print("\n");
- }
+ return FALSE;
+}
+static gboolean expose(GtkWidget *da, GdkEventExpose *event, gpointer user_data)
+{
+ Sweep *sweep = cur_sweep;
+
+ GdkGLContext *glcontext = gtk_widget_get_gl_context(da);
+ GdkGLDrawable *gldrawable = gtk_widget_get_gl_drawable(da);
+
+ /* draw in here */
+ glPushMatrix();
+ glRotatef(0, 0, 0, 0);
+
+ /* Draw the rays */
+ glEnable(GL_TEXTURE_2D);
+ glBegin(GL_QUAD_STRIP);
+ int _ri; // not really used, creates strange fragments..
+ for (_ri = 0; _ri < sweep->h.nrays; _ri++) {
+ /* Do the first sweep twice to complete the last Quad */
+ int ri = _ri % sweep->h.nrays;
+ Ray *ray = sweep->ray[ri];
+
+ /* right and left looking out from radar */
+ double left = ((ray->h.azimuth - ((double)ray->h.beam_width/2.))*M_PI)/180.0;
+ double right = ((ray->h.azimuth + ((double)ray->h.beam_width/2.))*M_PI)/180.0;
+
+ double lx = sin(left);
+ double ly = cos(left);
+
+ /* TODO: change this to meters instead of 0..1 */
+ double max_dist = ray->h.nbins*ray->h.gate_size + ray->h.range_bin1;
+ double near_dist = (double)(ray->h.range_bin1) / max_dist;
+ double far_dist = (double)(ray->h.nbins*ray->h.gate_size + ray->h.range_bin1) / max_dist;
+
+ /* (find middle of bin) / scale for opengl */
+ glTexCoord2d(0.0, ((double)ri)/sweep->h.nrays); glVertex3f(lx*near_dist, ly*near_dist, 0.); // near left
+ glTexCoord2d(0.7, ((double)ri)/sweep->h.nrays); glVertex3f(lx*far_dist, ly*far_dist, 0.); // far left
+ }
+ g_printf("ri=%d, nr=%d, bw=%f\n", _ri, sweep->h.nrays, sweep->h.beam_width);
glEnd();
+ /* Texture debug */
+ //glBegin(GL_QUADS);
+ //glTexCoord2d( 0., 0.); glVertex3f(-1., 0., 0.); // bot left
+ //glTexCoord2d( 0., 1.); glVertex3f(-1., 1., 0.); // top left
+ //glTexCoord2d( 1., 1.); glVertex3f( 0., 1., 0.); // top right
+ //glTexCoord2d( 1., 0.); glVertex3f( 0., 0., 0.); // bot right
+ //glEnd();
+ glDisable(GL_TEXTURE_2D);
/* Print the color table */
glBegin(GL_QUADS);
}
glEnd();
- glPopMatrix ();
+ glPopMatrix();
return FALSE;
}
-gboolean radar_init(GtkDrawingArea *drawing, GtkNotebook *config)
+gboolean radar_init(GtkDrawingArea *_drawing, GtkNotebook *config)
{
- /* Add configuration tab */
- GtkWidget *label = gtk_label_new("Radar");
- rotate_button = gtk_toggle_button_new_with_label("Rotate");
- gtk_notebook_append_page(GTK_NOTEBOOK(config), rotate_button, label);
-
+ drawing = GTK_WIDGET(_drawing);
/* Set up OpenGL Stuff */
- g_signal_connect(drawing, "expose-event", G_CALLBACK(expose), NULL);
+ g_signal_connect(drawing, "expose-event", G_CALLBACK(expose), NULL);
+ g_signal_connect(drawing, "configure-event", G_CALLBACK(configure), NULL);
/* Parse hard coded file.. */
- RSL_read_these_sweeps("0", NULL);
- radar = RSL_wsr88d_to_radar("/scratch/aweather/src/KABR_20080609_0224", "KABR");
- RSL_load_refl_color_table();
+ RSL_read_these_sweeps("all", NULL);
+ //RSL_read_these_sweeps("all", NULL);
+ Radar *radar = RSL_wsr88d_to_radar("/scratch/aweather/src/KABR_20080609_0224", "KABR");
+ //radar = RSL_wsr88d_to_radar("/scratch/aweather/src/KABX_20080622_2229", "KABX");
+ RSL_load_vel_color_table();
RSL_get_color_table(RSL_RED_TABLE, red, &nred);
RSL_get_color_table(RSL_GREEN_TABLE, green, &ngreen);
RSL_get_color_table(RSL_BLUE_TABLE, blue, &nblue);
if (radar->h.nvolumes < 1 || radar->v[0]->h.nsweeps < 1)
g_print("No sweeps found\n");
- sweep = radar->v[0]->sweep[0];
- RSL_volume_to_gif(radar->v[DZ_INDEX], "dz_sweep", 1024, 1024, 200.0);
+ cur_sweep = radar->v[0]->sweep[0];
+
+ /* Add configuration tab */
+ GtkWidget *hbox = gtk_hbox_new(TRUE, 0);
+ GtkWidget *button = NULL;
+ int vi = 0, si = 0;
+ for (vi = 0; vi < radar->h.nvolumes; vi++) {
+ Volume *vol = radar->v[vi];
+ if (vol == NULL) continue;
+ GtkWidget *vbox = gtk_vbox_new(TRUE, 0);
+ gtk_box_pack_start(GTK_BOX(hbox), vbox, TRUE, TRUE, 0);
+ for (si = 0; si < vol->h.nsweeps; si++) {
+ Sweep *sweep = vol->sweep[si];
+ if (sweep == NULL) continue;
+ char *label = g_strdup_printf("Tilt: %.2f (%s)", sweep->h.elev, vol->h.type_str);
+ button = gtk_radio_button_new_with_label_from_widget(GTK_RADIO_BUTTON(button), label);
+ g_signal_connect_swapped(button, "clicked", G_CALLBACK(load_sweep), sweep);
+ gtk_box_pack_start(GTK_BOX(vbox), button, TRUE, TRUE, 0);
+ free(label);
+ }
+ }
+ GtkWidget *label = gtk_label_new("Radar");
+ gtk_notebook_append_page(GTK_NOTEBOOK(config), hbox, label);
+
}