Delgpl: Toss bogus points in reader to improve compatibility w/ SA 2007 and SA2009.

diff --git a/delgpl.c b/delgpl.c
index 37dac7ac24bc9ae86ea7f8f7db8007e2b78499ea..544a476e01e478c50b7d16a39db9794dfabbc605 100644 (file)
--- a/delgpl.c
+++ b/delgpl.c
@@ -1,7 +1,7 @@
 /*
     DeLorme GPL Track Format.
 
-    Copyright (C) 2003 Robert Lipe, robertlipe@usa.net
+    Copyright (C) 2003, 2009 Robert Lipe, robertlipe@gpsbabel.org
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -75,7 +75,12 @@ gpl_read(void)
                WAYPT_SET(wpt_tmp, course, le_read_double(&gp.heading));
                WAYPT_SET(wpt_tmp, speed, le_read_double(&gp.speed));
                WAYPT_SET(wpt_tmp, speed, MILES_TO_METERS(wpt_tmp->speed)/3600);        
-               
+               // 2008 and 2009 seem to throw track points in that go back
+               // in time.  The only thing I see "special" about those 
+               // trackpoints is that these fields are zeroed.  Toss them.
+               if ((wpt_tmp->speed == 0.0) && (wpt_tmp->course == 0.0)) {
+                       continue;
+               }
                track_add_wpt(track_head, wpt_tmp);
        }
 }