dc-sdk/libs/cesium/Source/Core/TileEdge.js

    /**
     * @private
     */
    var TileEdge = {
        WEST: 0,
        NORTH: 1,
        EAST: 2,
        SOUTH: 3,
        NORTHWEST: 4,
        NORTHEAST: 5,
        SOUTHWEST: 6,
        SOUTHEAST: 7
    };
export default TileEdge;