+ plot_text(gc, &tro, 0.98, 0.98, "SAC: %4.2f %s/min", sac, unit);
+ }
+
+ tro.vpos = -3.4;
+ desc = dive->cylinder[0].type.description;
+ if (desc || dive->cylinder[0].gasmix.o2.permille) {
+ int o2 = dive->cylinder[0].gasmix.o2.permille / 10;
+ if (!desc)
+ desc = "";
+ if (!o2)
+ o2 = 21;
+ plot_text(gc, &tro, 0.98, 0.98, "%s (%d%%)", desc, o2);
+ }
+}
+
+static int mbar_to_PSI(int mbar)
+{
+ pressure_t p = {mbar};
+ return to_PSI(p);
+}
+
+static void plot_cylinder_pressure_text(struct graphics_context *gc, struct plot_info *pi)
+{
+ if (get_cylinder_pressure_range(gc, pi)) {
+ int start, end;
+ const char *unit = "bar";
+
+ switch (output_units.pressure) {
+ case PASCAL:
+ start = pi->maxpressure * 100;
+ end = pi->minpressure * 100;
+ unit = "pascal";
+ break;
+ case BAR:
+ start = (pi->maxpressure + 500) / 1000;
+ end = (pi->minpressure + 500) / 1000;
+ unit = "bar";
+ break;
+ case PSI:
+ start = mbar_to_PSI(pi->maxpressure);
+ end = mbar_to_PSI(pi->minpressure);
+ unit = "psi";
+ break;
+ }
+
+ text_render_options_t tro = {10, 0.2, 1.0, 0.2, LEFT, TOP};
+ plot_text(gc, &tro, 0, pi->maxpressure, "%d %s", start, unit);
+ plot_text(gc, &tro, pi->maxtime, pi->minpressure,
+ "%d %s", end, unit);
+ }
+}
+
+static void analyze_plot_info_minmax_minute(struct plot_data *entry, struct plot_data *first, struct plot_data *last, int index)
+{
+ struct plot_data *p = entry;
+ int time = entry->sec;
+ int seconds = 90*(index+1);
+ struct plot_data *min, *max;
+ int avg, nr;
+
+ /* Go back 'seconds' in time */
+ while (p > first) {
+ if (p[-1].sec < time - seconds)
+ break;
+ p--;
+ }
+
+ /* Then go forward until we hit an entry past the time */
+ min = max = p;
+ avg = p->val;
+ nr = 1;
+ while (++p < last) {
+ int val = p->val;
+ if (p->sec > time + seconds)
+ break;
+ avg += val;
+ nr ++;
+ if (val < min->val)
+ min = p;
+ if (val > max->val)
+ max = p;