From: Matt Blair <blair1618@gmail.com>
Date: Sat, 19 Nov 2016 03:40:11 +0000 (-0500)
Subject: Fix longitude wrapping to range (-180, 180)
X-Git-Tag: submit/tizen/20161125.033156~2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=d6c48d40e2bb2bebb93eeca42ab91143d2424880;p=platform%2Fcore%2Flocation%2Fmaps-plugin-mapzen.git

Fix longitude wrapping to range (-180, 180)

Change-Id: I930a0309d6d8221ee4cb62a3b76b12740992743e
---

diff --git a/src/mapzen/mapzen_util.c b/src/mapzen/mapzen_util.c
index 3df9bc9..9128a10 100644
--- a/src/mapzen/mapzen_util.c
+++ b/src/mapzen/mapzen_util.c
@@ -48,12 +48,12 @@ void calculate_point(gdouble Lat1, gdouble Lon1, int dBearing, gdouble dist, coo
 
 double wrap_longitude(double longitude)
 {
-	return fmod(longitude, 180.0);
+	return longitude - round(longitude / 360.0) * 360.0;
 }
 
 double wrap_latitude(double latitude)
 {
-	return fmod(latitude, 90.0);
+	return latitude - round(latitude / 180.0) * 180.0;
 }
 
 double degrees_to_radians(double degrees)
diff --git a/src/mapzen/tangram_view.cpp b/src/mapzen/tangram_view.cpp
index 2abf376..b241d28 100644
--- a/src/mapzen/tangram_view.cpp
+++ b/src/mapzen/tangram_view.cpp
@@ -312,6 +312,8 @@ mapzen_error_e TangramView::moveCenter(maps_view_h view, int delta_x, int delta_
 	double y = 0.5 * m_h + (double)delta_y;
 	double lng = 0.0, lat = 0.0;
 	if (m_map->screenPositionToLngLat(x, y, &lng, &lat)) {
+		lng = wrap_longitude(lng);
+		lat = wrap_latitude(lat);
 		m_map->setPosition(lng, lat);
 	}