X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=profile.c;h=614822809f53dd59bcb6ad2575f51b5e8207e398;hb=549708c6eaab2d0592c3e520e0debd82d64619b4;hp=822e30c0e11e5c217e84235578cfde08b6445fdb;hpb=827c1e352121af96708f0414248e57d735e3dea8;p=ext%2Fsubsurface.git

diff --git a/profile.c b/profile.c
index 822e30c..6148228 100644
--- a/profile.c
+++ b/profile.c
@@ -1014,8 +1014,7 @@ static void dump_pr_track(pr_track_t **track_pr)
 	}
 }
 
-static void fill_missing_tank_pressures(struct dive *dive, struct plot_info *pi,
-					pr_track_t **track_pr)
+static void fill_missing_tank_pressures(struct plot_info *pi, pr_track_t **track_pr)
 {
 	pr_track_t *list = NULL;
 	pr_track_t *nlist = NULL;
@@ -1338,7 +1337,7 @@ static struct plot_info *create_plot_info(struct dive *dive, int nr_samples, str
 	pi->meandepth = dive->meandepth.mm;
 
 	if (missing_pr) {
-		fill_missing_tank_pressures(dive, pi, track_pr);
+		fill_missing_tank_pressures(pi, track_pr);
 	}
 	for (cyl = 0; cyl < MAX_CYLINDERS; cyl++)
 		list_free(track_pr[cyl]);
@@ -1355,12 +1354,15 @@ void plot(struct graphics_context *gc, cairo_rectangle_int_t *drawing_area, stru
 	int nr = dive->samples;
 
 	if (!nr) {
+		/* The dive has no samples, so create a few fake ones.  This assumes an
+		ascent/descent rate of 9 m/min, which is just below the limit for FAST. */
 		int duration = dive->duration.seconds;
 		int maxdepth = dive->maxdepth.mm;
+		int asc_desc_time = dive->maxdepth.mm*60/9000;
 		sample = fake;
-		fake[1].time.seconds = duration * 0.05;
+		fake[1].time.seconds = asc_desc_time;
 		fake[1].depth.mm = maxdepth;
-		fake[2].time.seconds = duration * 0.95;
+		fake[2].time.seconds = duration - asc_desc_time;
 		fake[2].depth.mm = maxdepth;
 		fake[3].time.seconds = duration * 1.00;
 		nr = 4;