X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=dive.c;h=36ee8e78c496ce88c375edfd001eb9b64f6c43a8;hb=549708c6eaab2d0592c3e520e0debd82d64619b4;hp=9f57aed58146554969901198ac761fc888904e18;hpb=1d6903c65a4980ac51a3508db6a388ab07111341;p=ext%2Fsubsurface.git

diff --git a/dive.c b/dive.c
index 9f57aed..36ee8e7 100644
--- a/dive.c
+++ b/dive.c
@@ -451,7 +451,12 @@ struct dive *fixup_dive(struct dive *dive)
 		}
 	}
 	if (end < 0)
+	{
+		/* Assume an ascent/descent rate of 9 m/min */
+		int asc_desc_time = dive->maxdepth.mm*60/9000;
+		dive->meandepth.mm = dive->maxdepth.mm*(dive->duration.seconds-asc_desc_time)/dive->duration.seconds;
 		return dive;
+	}
 
 	update_duration(&dive->duration, end - start);
 	if (start != end)