static int
put_metadata_in_textview(const char * file, int reqrec, const char * tv)
{
char *rec = get_record_as_string((char*)file, reqrec);
int ret = strncmp("Record not found.", rec, 17) != 0;
put_text_in_textview(rec, tv);
FREE(rec);
return ret;
}
void update_pixel_info(ImageInfo *ii)
{
// update the left-hand "clicked pixel" information
char buf[512];
GtkWidget *img = get_widget_checked("big_image");
GdkPixbuf *shown_pixbuf = gtk_image_get_pixbuf(GTK_IMAGE(img));
double x = crosshair_samp;
double y = crosshair_line;
int nl = ii->meta->general->line_count;
int ns = ii->meta->general->sample_count;
CachedImage *data_ci = ii->data_ci;
meta_parameters *meta = ii->meta;
sprintf(buf, "Line: %.1f, Sample: %.1f\n", y, x);
if (x < 0 || x >= ns || y < 0 || y >= nl)
{
// outside of the image
sprintf(&buf[strlen(buf)], "Pixel Value: (outside image)\n");
}
else
{
assert(meta);
assert(shown_pixbuf);
if (data_ci->data_type == GREYSCALE_FLOAT) {
float fval = cached_image_get_pixel(data_ci,
crosshair_line, crosshair_samp);
if (have_lut()) {
unsigned char r, g, b;
cached_image_get_rgb(data_ci, crosshair_line, crosshair_samp,
&r, &g, &b);
if (is_ignored(&ii->stats, fval)) {
sprintf(&buf[strlen(buf)], "Pixel Value: %f [ignored]\n",
fval);
}
else {
sprintf(&buf[strlen(buf)],
"Pixel Value: %f -> R:%d G:%d B:%d\n",
fval, (int)r, (int)g, (int)b);
}
}
else {
int uval = calc_scaled_pixel_value(&(ii->stats), fval);
if (is_ignored(&ii->stats, fval)) {
sprintf(&buf[strlen(buf)], "Pixel Value: %f [ignored]\n",
fval);
}
else {
sprintf(&buf[strlen(buf)], "Pixel Value: %f -> %d\n",
fval, uval);
}
}
}
else if (data_ci->data_type == RGB_BYTE) {
unsigned char r, g, b;
float rf, gf, bf;
cached_image_get_rgb(data_ci, crosshair_line, crosshair_samp,
&r, &g, &b);
cached_image_get_rgb_float(data_ci, crosshair_line, crosshair_samp,
&rf, &gf, &bf);
if (!is_ignored_rgb(&ii->stats_r, rf) &&
!is_ignored_rgb(&ii->stats_g, gf) &&
!is_ignored_rgb(&ii->stats_b, bf))
{
sprintf(&buf[strlen(buf)], "Pixel Value: R,G,B = %d, %d, %d\n",
(int)r, (int)g, (int)b);
}
else {
sprintf(&buf[strlen(buf)],
"Pixel Value: R,G,B = %d,%d,%d [ignored]\n",
(int)rf, (int)gf, (int)bf);
}
}
else if (data_ci->data_type == GREYSCALE_BYTE) {
unsigned char r, g, b;
cached_image_get_rgb(data_ci, crosshair_line, crosshair_samp,
&r, &g, &b);
if (have_lut()) {
int gs = (int)cached_image_get_pixel(data_ci,
crosshair_line, crosshair_samp);
if (is_ignored(&ii->stats, (float)gs))
sprintf(&buf[strlen(buf)],
"Pixel Value: %d [ignored]\n",
gs);
else
sprintf(&buf[strlen(buf)],
"Pixel Value: %d -> R:%d G:%d B:%d\n",
gs, (int)r, (int)g, (int)b);
}
else {
int gs = (int)cached_image_get_pixel(data_ci,
crosshair_line, crosshair_samp);
if (is_ignored(&ii->stats, gs)) {
sprintf(&buf[strlen(buf)], "Pixel Value: %d [ignored]\n",
gs);
}
else if (ii->stats.truncate) {
sprintf(&buf[strlen(buf)], "Pixel Value: %d\n", gs);
}
else {
sprintf(&buf[strlen(buf)], "Pixel Value: %d -> %d\n",
gs, (int)r);
}
}
}
else if (data_ci->data_type == RGB_FLOAT) {
unsigned char r, g, b;
float rf, gf, bf;
cached_image_get_rgb(data_ci, crosshair_line, crosshair_samp,
&r, &g, &b);
cached_image_get_rgb_float(data_ci, crosshair_line, crosshair_samp,
&rf, &gf, &bf);
if (is_ignored_rgb(&ii->stats_r, rf))
sprintf(&buf[strlen(buf)], "Red: %f [ignored]\n", rf);
else
sprintf(&buf[strlen(buf)], "Red: %f -> %d\n", rf, (int)r);
if (is_ignored_rgb(&ii->stats_g, gf))
sprintf(&buf[strlen(buf)], "Green: %f [ignored]\n", gf);
else
sprintf(&buf[strlen(buf)], "Green: %f -> %d\n", gf, (int)g);
if (is_ignored_rgb(&ii->stats_b, bf))
sprintf(&buf[strlen(buf)], "Blue: %f [ignored]\n", rf);
else
sprintf(&buf[strlen(buf)], "Blue: %f -> %d\n", bf, (int)b);
}
}
double lat=0, lon=0;
if (meta_supports_meta_get_latLon(meta))
{
meta_get_latLon(meta, y, x, 0, &lat, &lon);
sprintf(&buf[strlen(buf)], "Lat, Lon: %.5f, %.5f (deg)\n", lat, lon);
//double px, py;
//latLon2UTM(lat,lon,0,&px,&py);
//printf("%14.7f %14.7f --> %13.2f %13.2f\n", lat, lon, px, py);
}
// skip projection coords if not projected, or lat/long pseudo (since
// in that case the projection coords are just the lat/long values
// we are already showing)
if (meta->projection &&
meta->projection->type != LAT_LONG_PSEUDO_PROJECTION)
{
double projX, projY, projZ;
latlon_to_proj(meta->projection, 'R', lat*D2R, lon*D2R, 0,
&projX, &projY, &projZ);
sprintf(&buf[strlen(buf)], "Proj X,Y: %.1f, %.1f m\n",
projX, projY);
}
if (!meta->projection && meta->state_vectors && meta->sar) {
double s,t;
meta_get_timeSlantDop(meta, y, x, &t, &s, NULL);
sprintf(&buf[strlen(buf)],
"Incid: %.4f, Look: %.4f (deg)\n"
"Slant: %.1f m Time: %.3f s\n"
"Yaw: %.4f (deg)\n",
R2D*meta_incid(meta,y,x), R2D*meta_look(meta,y,x), s, t,
R2D*meta_yaw(meta,y,x));
}
if (meta->projection &&
meta->projection->type != LAT_LONG_PSEUDO_PROJECTION &&
meta->projection->type != SCANSAR_PROJECTION) {
distortion_t d;
map_distortions(meta->projection, lat*D2R, lon*D2R, &d);
sprintf(&buf[strlen(buf)], "Meridian scale factor: %.6f\n", d.h);
sprintf(&buf[strlen(buf)], "Parallel scale factor: %.6f\n", d.k);
sprintf(&buf[strlen(buf)], "Areal scale factor: %.6f\n", d.s);
sprintf(&buf[strlen(buf)], "Angular distortion: %.4f (deg)\n", d.omega);
}
if (g_poly->n > 0) {
// start distance measure at crosshair coords
double cross_x, cross_y, prev_x, prev_y;
line_samp_to_proj(ii, y, x, &cross_x, &cross_y);
prev_x = cross_x; prev_y = cross_y;
// iterate through ctrl-clicked coords
int i;
double d=0, A=0; // d=distance, A=area
for (i=0; i<g_poly->n; ++i) {
double proj_x, proj_y;
line_samp_to_proj(ii, g_poly->line[i], g_poly->samp[i],
&proj_x, &proj_y);
d += hypot(proj_x-prev_x, proj_y-prev_y);
A += prev_x * proj_y - proj_x * prev_y;
prev_x = proj_x; prev_y = proj_y;
// for the area calc, we close the polygon automatically
if (i==g_poly->n-1)
A += prev_x * cross_y - cross_x * prev_y;
}
A /= 2.;
char *units = "m";
if (!meta_supports_meta_get_latLon(meta))
units = "pixels";
if (g_poly->n == 1)
sprintf(&buf[strlen(buf)], "Distance to %.1f,%.1f: %.1f %s",
g_poly->line[0], g_poly->samp[0], d, units);
else
sprintf(&buf[strlen(buf)],
"Total distance: %.1f %s (%d points)\n"
"Area (of closure): %.1f %s^2",
d, units, g_poly->n+1, fabs(A), units);
} else {
sprintf(&buf[strlen(buf)], "Distance: (ctrl-click to measure)");
}
put_text_in_textview(buf, "info_textview");
//GtkWidget *lbl = get_widget_checked("upper_label");
//gtk_label_set_text(GTK_LABEL(lbl), buf);
}
