0.4 release

[speedometer] / callbacks.c

diff --git a/callbacks.c b/callbacks.c
index 3c48b2d..479cca7 100644 (file)
--- a/callbacks.c
+++ b/callbacks.c
@@ -16,16 +16,18 @@
        along with this program.  If not, see <http://www.gnu.org/licenses/>.
 ****/
 
+#include <math.h>
+
 #include "callbacks.h"
 #include "appdata.h"
 #include "util.h"
 
-// this is just here for debugging and tracing purposes
+// this is just here for debugging
 static void print_location(LocationGPSDevice* device) {
        g_print("Latitude: %.2f\n"
                        "Longitude: %.2f\n"
                        "Altitude: %.2f\n"
-                       "Speed: %d",
+                       "Speed: %.2d\n",
                        device->fix->latitude,
                        device->fix->longitude,
                        device->fix->altitude,
@@ -33,13 +35,17 @@ static void print_location(LocationGPSDevice* device) {
 }
 
 void location_changed(LocationGPSDevice* device, gpointer data) {
-       print_location(device);
+       //print_location(device);
+       g_assert(data);
+       g_assert(device);
 
        AppData* appdata = (AppData*) data;
 
-       if(device->fix && LOCATION_GPS_DEVICE_SPEED_SET) {
-               g_print("Speed is %f km/h", device->fix->speed);
-               interpret_speed_from_gps(appdata, device->fix->speed);
+       // check for NaN before passing values
+       if(device->fix->fields & LOCATION_GPS_DEVICE_SPEED_SET) {
+               if(!isnan(device->fix->speed)) {
+                       interpret_speed_from_gps(appdata, device->fix->speed);
+                       }
        }
 }