return MAX(30*60, ROUND_UP(seconds, 60*10));
}
-static int round_feet_up(int feet)
+static int round_depth_up(depth_t depth)
{
- return MAX(90, ROUND_UP(feet+5, 15));
+ unsigned mm = depth.mm;
+ /* Minimum 30m */
+ return MAX(30000, ROUND_UP(mm+3000, 10000));
}
typedef struct {
/* Get plot scaling limits */
maxtime = round_seconds_up(dive->duration.seconds);
- maxdepth = round_feet_up(to_feet(dive->maxdepth));
+ maxdepth = round_depth_up(dive->maxdepth);
scalex = maxtime;
scaley = maxdepth;
text_render_options_t tro = {1.0, 0.2, 0.2, CENTER};
struct sample *sample = dive->sample+i;
int sec = sample->time.seconds;
- int depth = to_feet(sample->depth);
+ depth_t depth = sample->depth;
+ const char *fmt;
+ double d;
+
+ switch (output_units.length) {
+ case METERS:
+ d = depth.mm / 1000.0;
+ fmt = "%.1f";
+ break;
+ case FEET:
+ d = to_feet(depth);
+ fmt = "%.0f";
+ break;
+ }
- plot_text(cr, &tro, SCALE(sec, depth), "%d ft", depth);
+ plot_text(cr, &tro, SCALE(sec, depth.mm), fmt, d);
i = next_minmax(dive, i, 0);
if (!i)
break;
int begins, sec, depth;
int i, samples;
struct sample *sample;
- int maxtime, maxdepth;
+ int maxtime, maxdepth, marker;
samples = dive->samples;
if (!samples)
/* Get plot scaling limits */
maxtime = round_seconds_up(dive->duration.seconds);
- maxdepth = round_feet_up(to_feet(dive->maxdepth));
+ maxdepth = round_depth_up(dive->maxdepth);
/* Time markers: every 5 min */
scalex = maxtime;
cairo_line_to(cr, SCALE(i, 1));
}
- /* Depth markers: every 15 ft */
+ /* Depth markers: every 30 ft or 10 m*/
scalex = 1.0;
scaley = maxdepth;
+ switch (output_units.length) {
+ case METERS: marker = 10000; break;
+ case FEET: marker = 9144; break; /* 30 ft */
+ }
+
cairo_set_source_rgba(cr, 1, 1, 1, 0.5);
- for (i = 15; i < maxdepth; i += 15) {
+ for (i = marker; i < maxdepth; i += marker) {
cairo_move_to(cr, SCALE(0, i));
cairo_line_to(cr, SCALE(1, i));
}
/* Show mean depth */
cairo_set_source_rgba(cr, 1, 0.2, 0.2, 0.40);
- cairo_move_to(cr, SCALE(0, to_feet(dive->meandepth)));
- cairo_line_to(cr, SCALE(1, to_feet(dive->meandepth)));
+ cairo_move_to(cr, SCALE(0, dive->meandepth.mm));
+ cairo_line_to(cr, SCALE(1, dive->meandepth.mm));
cairo_stroke(cr);
scalex = maxtime;
sample = dive->sample;
cairo_set_source_rgba(cr, 1, 0.2, 0.2, 0.80);
begins = sample->time.seconds;
- cairo_move_to(cr, SCALE(sample->time.seconds, to_feet(sample->depth)));
+ cairo_move_to(cr, SCALE(sample->time.seconds, sample->depth.mm));
for (i = 1; i < dive->samples; i++) {
sample++;
sec = sample->time.seconds;
if (sec <= maxtime) {
- depth = to_feet(sample->depth);
+ depth = sample->depth.mm;
cairo_line_to(cr, SCALE(sec, depth));
}
}