From: Andy Spencer <andy753421@gmail.com>
Date: Wed, 15 Feb 2012 05:34:52 +0000 (+0000)
Subject: Save previous heading in case of nan
X-Git-Tag: v0.7~1
X-Git-Url: http://pileus.org/git/?p=aweather;a=commitdiff_plain;h=11cb13cdcb190bb7732608c84b1e07fed7b929b2

Save previous heading in case of nan

For some reason my GPS is giving me NaN's instead of headings..
---

diff --git a/src/plugins/gps-plugin.c b/src/plugins/gps-plugin.c
index 977fcb7..c2ef65e 100644
--- a/src/plugins/gps-plugin.c
+++ b/src/plugins/gps-plugin.c
@@ -840,7 +840,10 @@ static void process_gps(gpointer data, gint source, GdkInputCondition condition)
 
 	/* Process any data from the gps and call the hook function */
 	if (gps_data != NULL) {
+		gdouble track = gps_data->fix.track;
 		gint result = gps_read(gps_data);
+		if (isnan(gps_data->fix.track))
+			gps_data->fix.track = track;
 		g_debug("GritsPluginGps: process_gps - gps_read returned %d, "
 			"position %f, %f.", result,
 			gps_data->fix.latitude, gps_data->fix.longitude);