From ae905930c5b812e2acca2440c11b1f0c50a2c5f0 Mon Sep 17 00:00:00 2001
From: Jonathan Hudson <jh+github@daria.co.uk>
Date: Sun, 29 Dec 2024 12:57:55 +0000
Subject: [PATCH] generic improvement in position difference checks, part deux.

---
 src/mwp/mwp-flysky_processing.vala | 6 +++---
 src/mwp/mwp-ltm_message.vala       | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/mwp/mwp-flysky_processing.vala b/src/mwp/mwp-flysky_processing.vala
index 59213f1c..c358df27 100644
--- a/src/mwp/mwp-flysky_processing.vala
+++ b/src/mwp/mwp-flysky_processing.vala
@@ -68,14 +68,14 @@ namespace Flysky {
 
 			var cse = Mwp.calc_cse_dist_delta(dlat, dlon, out ddm);
 			var spd = (double)(rg.gps_speed/100.0);
-
-			if(Math.fabs(ser.td.gps.lat - dlat) > 1e-6) {
+			var pdiff = Mwp.pos_diff(dlat, dlon, ser.td.gps.lat, ser.td.gps.lon);
+			if (Mwp.PosDiff.LAT in pdiff) {
 				fvup |= FlightBox.Update.LAT;
 				ttup |= TelemTracker.Fields.LAT;
 				ser.td.gps.lat = dlat;
 			}
 
-			if (Math.fabs(ser.td.gps.lon - dlon) > 1e-6) {
+			if (Mwp.PosDiff.LON in pdiff) {
 				fvup |= FlightBox.Update.LON;
 				ttup |= TelemTracker.Fields.LON;
 				ser.td.gps.lon = dlon;
diff --git a/src/mwp/mwp-ltm_message.vala b/src/mwp/mwp-ltm_message.vala
index d31c603a..3d512709 100644
--- a/src/mwp/mwp-ltm_message.vala
+++ b/src/mwp/mwp-ltm_message.vala
@@ -103,7 +103,7 @@ namespace Mwp {
 				ttup |= TelemTracker.Fields.LAT;
 				ser.td.gps.lat = lat;
 			}
-			if (PosDiff.LAT in pdiff) {
+			if (PosDiff.LON in pdiff) {
 				fvup |= FlightBox.Update.LON;
 				ttup |= TelemTracker.Fields.LON;
 				ser.td.gps.lon = lon;