link out to dem encoding docsupstream/encoding-param-darwin

1 files changed, 4 insertions, 4 deletions

diff --git a/platform/darwin/src/MGLTileSource.h b/platform/darwin/src/MGLTileSource.h
index dcec6dcda3..ab43ac53ba 100644
--- a/platform/darwin/src/MGLTileSource.h
+++ b/platform/darwin/src/MGLTileSource.h
@@ -161,14 +161,14 @@ extern MGL_EXPORT const MGLTileSourceOption MGLTileSourceOptionDEMEncoding;
 typedef NS_ENUM(NSUInteger, MGLDEMEncoding) {
 
     /**
-     Raster tiles generated with the Mapbox encoding formula where
-     elevaion = -10000 + ((R * 256 * 256 + G * 256 + B) * 0.1)
+     Raster tiles generated with the Mapbox encoding formula. 
+     See more details here: https://www.mapbox.com/help/access-elevation-data/#mapbox-terrain-rgb 
     */
     MGLDEMEncodingMapbox = 0,
 
     /**
-     Raster tiles generated with the Mapzen Terrarium encoding formula where
-     elevaion = (R * 256 + G + B / 256) - 32768
+     Raster tiles generated with the Mapzen Terrarium encoding formula.
+     See more details here: https://aws.amazon.com/public-datasets/terrain/
     */
     MGLDEMEncodingTerrarium
 };