From 2aad19f4341162438a4534c130b7cd1c2ac28343 Mon Sep 17 00:00:00 2001
From: robertl <robertl>
Date: Tue, 21 Jul 2009 05:18:37 +0000
Subject: [PATCH] track_recompute: don't recompute speed if we already have it.

---
 route.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/route.c b/route.c
index 255129ad7..e6f8b1ff6 100644
--- a/route.c
+++ b/route.c
@@ -565,10 +565,15 @@ void track_recompute(const route_head *trk, computed_trkdata **trkdatap)
 		}
 
 		/*
-		 * If we've moved as much as a meter, recompute speed.
+		 * If we've moved as much as a meter, 
+		 * conditionally recompute speeds.
 		 */
 		if (timed && (dist > 1)) {
-			WAYPT_SET(this, speed, dist / labs(timed));
+			if(!WAYPT_HAS(this, speed)) {
+				// Only recompute speed if the waypoint
+				// didn't already have a speed
+				WAYPT_SET(this, speed, dist / labs(timed));
+			}
 			if (this->speed > tdata->max_spd) {
 				tdata->max_spd = this->speed;
 			}
-- 
2.30.2