Display x y tiles on separate lines

CHANGES.md

@@ -5,6 +5,7 @@ Change Log
 
 ##### Fixes :wrench:
 * `Camera.flyTo` flies to the correct location in 2D when the destination crosses the international date line [#7909](https://github.com/AnalyticalGraphicsInc/cesium/pull/7909)
+* Improved display of tile coordinates for `TileCoordinatesImageryProvider` [#8131](https://github.com/AnalyticalGraphicsInc/cesium/pull/8131)
 
 ### 1.61 - 2019-09-03
 

CONTRIBUTORS.md

@@ -230,4 +230,4 @@ See [CONTRIBUTING.md](CONTRIBUTING.md) for details on how to contribute to Cesiu
 * [jony89](https://github.com/jony89)
 * [TJKoury](https://github.com/tjkoury)
 * [Qiming Zhang](https://github.com/bbbbx)
-
+* [Chris Wingler](https://github.com/chriswingler)

Source/Scene/TileCoordinatesImageryProvider.js

@@ -257,13 +257,12 @@ define([
         context.lineWidth = 2;
         context.strokeRect(1, 1, 255, 255);
 
-        var label = 'L' + level + 'X' + x + 'Y' + y;
         context.font = 'bold 25px Arial';
         context.textAlign = 'center';
-        context.fillStyle = 'black';
-        context.fillText(label, 127, 127);
         context.fillStyle = cssColor;
-        context.fillText(label, 124, 124);
+        context.fillText('L: ' + level, 124, 86);
+        context.fillText('X: ' + x, 124, 136);
+        context.fillText('Y: ' + y, 124, 186);
 
         return canvas;
     };