#include <config.h>
#include <gtk/gtk.h>
-#include <gtk/gtkgl.h>
-#include <gdk/gdkkeysyms.h>
#include <GL/gl.h>
#include <math.h>
#include "radar.h"
GtkWidget *drawing;
-static Sweep *cur_sweep; // make this not global
+static Sweep *cur_sweep = NULL; // make this not global
static int nred, ngreen, nblue;
-static guint8 red[256], green[256], blue[256];
+static char red[256], green[256], blue[256];
+static guint sweep_tex = 0;
+
+static guint8 get_alpha(guint8 db)
+{
+ if (db == BADVAL) return 0;
+ if (db == RFVAL ) return 0;
+ if (db == APFLAG) return 0;
+ if (db == NOECHO) return 0;
+ if (db == 0 ) return 0;
+ //if (db > 60) return 0;
+ //else if (db < 10) return 0;
+ //else if (db < 25) return (db-10)*(255.0/15);
+ else return 255;
+}
+
+//#ifdef USE_TWO_BYTE_PRECISION
+//#define F_FACTOR 100.0
+//#define F_DR_FACTOR 1000.0
+//#define F_DZ_RANGE_OFFSET 50
+//#else
+//#define F_FACTOR 2.0
+//#define F_DR_FACTOR 10.0
+//#define F_DZ_RANGE_OFFSET 32
+//#endif
+//#define F_OFFSET 4
+//static float dz_f(Range x)
+//{
+// if (x >= F_OFFSET)
+// return (((float)x-F_OFFSET)/F_FACTOR - F_DZ_RANGE_OFFSET);
+// if (x == 0) return BADVAL;
+// if (x == 1) return RFVAL;
+// if (x == 2) return APFLAG;
+// if (x == 3) return NOECHO;
+// return BADVAL;
+//}
/* Convert a sweep to an 2d array of data points */
static void bscan_sweep(Sweep *sweep, guint8 **data, int *width, int *height)
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);
+ guint8 *buf = g_malloc0(sweep->h.nrays * max_bins * 4);
/* Fill the data */
int ri, bi;
for (ri = 0; ri < sweep->h.nrays; ri++) {
- Ray *ray = sweep->ray[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)];
+ /* copy RGBA into buffer */
+ //guint val = dz_f(ray->range[bi]);
+ guint val = ray->h.f(ray->range[bi]);
+ guint buf_i = (ri*max_bins+bi)*4;
+ buf[buf_i+0] = red[val];
+ buf[buf_i+1] = green[val];
+ buf[buf_i+2] = blue[val];
+ buf[buf_i+3] = get_alpha(val);
}
}
*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 */
int height, width;
guint8 *data;
bscan_sweep(sweep, &data, &width, &height);
+ glGenTextures(1, &sweep_tex);
+ glBindTexture(GL_TEXTURE_2D, sweep_tex);
glPixelStorei(GL_PACK_ALIGNMENT, 1);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
- 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);
- glEnable(GL_TEXTURE_2D);
+ glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+ glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, data);
+ g_free(data);
gdk_window_invalidate_rect(drawing->window, &drawing->allocation, FALSE);
}
/* 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);
-
- if (!gdk_gl_drawable_gl_begin(gldrawable, glcontext))
- g_assert_not_reached();
-
- /* Load the texture */
- load_sweep(cur_sweep);
-
- gdk_gl_drawable_gl_end(gldrawable);
-
+ Sweep *first = (Sweep*)user_data;
+ if (cur_sweep == NULL)
+ load_sweep(first);
return FALSE;
}
static gboolean expose(GtkWidget *da, GdkEventExpose *event, gpointer user_data)
{
+ g_message("radar:expose");
Sweep *sweep = cur_sweep;
- GdkGLContext *glcontext = gtk_widget_get_gl_context(da);
- GdkGLDrawable *gldrawable = gtk_widget_get_gl_drawable(da);
+ /* Draw the rays */
- /* draw in here */
glPushMatrix();
- glRotatef(0, 0, 0, 0);
-
- /* Draw the rays */
+ glBindTexture(GL_TEXTURE_2D, sweep_tex);
glEnable(GL_TEXTURE_2D);
+ glColor3f(1,1,1);
glBegin(GL_QUAD_STRIP);
int _ri; // not really used, creates strange fragments..
for (_ri = 0; _ri < sweep->h.nrays; _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 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;
+ double near_dist = ray->h.range_bin1;
+ double far_dist = ray->h.nbins*ray->h.gate_size + ray->h.range_bin1;
/* (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
+ // near left
+ glTexCoord2f(0.0, (double)ri/sweep->h.nrays);
+ glVertex3f(lx*near_dist, ly*near_dist, 1.0);
+
+ // far left
+ glTexCoord2f(1.0, (double)ri/sweep->h.nrays);
+ glVertex3f(lx*far_dist, ly*far_dist, 1.0);
}
- g_printf("ri=%d, nr=%d, bw=%f\n", _ri, sweep->h.nrays, sweep->h.beam_width);
+ //g_print("ri=%d, nr=%d, bw=%f\n", _ri, sweep->h.nrays, sweep->h.beam_width);
glEnd();
+ glPopMatrix();
+
/* Texture debug */
//glBegin(GL_QUADS);
//glTexCoord2d( 0., 0.); glVertex3f(-1., 0., 0.); // bot 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 */
+ glPushMatrix();
+ glDisable(GL_TEXTURE_2D);
+ glMatrixMode(GL_MODELVIEW ); glLoadIdentity();
+ glMatrixMode(GL_PROJECTION); glLoadIdentity();
glBegin(GL_QUADS);
int i;
for (i = 0; i < nred; i++) {
- glColor3ub(red[i], green[i], blue[i]);
- glVertex3f(-1., (float)((i ) - nred/2)/(nred/2), 0.); // bot left
- glVertex3f(-1., (float)((i+1) - nred/2)/(nred/2), 0.); // top left
- glVertex3f(-.9, (float)((i+1) - nred/2)/(nred/2), 0.); // top right
- glVertex3f(-.9, (float)((i ) - nred/2)/(nred/2), 0.); // bot right
+ glColor4ub(red[i], green[i], blue[i], get_alpha(i));
+ glVertex3f(-1.0, (float)((i ) - nred/2)/(nred/2), 0.0); // bot left
+ glVertex3f(-1.0, (float)((i+1) - nred/2)/(nred/2), 0.0); // top left
+ glVertex3f(-0.9, (float)((i+1) - nred/2)/(nred/2), 0.0); // top right
+ glVertex3f(-0.9, (float)((i ) - nred/2)/(nred/2), 0.0); // bot right
}
glEnd();
-
glPopMatrix();
return FALSE;
gboolean radar_init(GtkDrawingArea *_drawing, GtkNotebook *config)
{
drawing = GTK_WIDGET(_drawing);
- /* Set up OpenGL Stuff */
- 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("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");
+ Radar *radar = RSL_wsr88d_to_radar("/scratch/aweather/data/level2/KNQA_20090501_1925.raw", "KNQA");
RSL_load_refl_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");
- cur_sweep = radar->v[0]->sweep[6];
/* Add configuration tab */
GtkWidget *hbox = gtk_hbox_new(TRUE, 0);
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);
+ g_free(label);
}
}
GtkWidget *label = gtk_label_new("Radar");
gtk_notebook_append_page(GTK_NOTEBOOK(config), hbox, label);
+ /* Set up OpenGL Stuff */
+ g_signal_connect(drawing, "expose-event", G_CALLBACK(expose), NULL);
+ g_signal_connect(drawing, "configure-event", G_CALLBACK(configure), radar->v[0]->sweep[0]);
+
+ return TRUE;
}
projects / grits / blobdiff