sampleTerrainMostDetailed

在地形數據集的最大可用瓦片級別啟動sampleterain（）請求。

Parameters:

terrainProvider (TerrainProvider) 從中查詢高度的地形提供程序。

positions (Array.<Cartographic>) 要隨地形高度更新的位置。

Example

// Query the terrain height of two Cartographic positions
var terrainProvider = bmgl.createWorldTerrain();
var positions = [
    bmgl.Cartographic.fromDegrees(86.925145, 27.988257),
    bmgl.Cartographic.fromDegrees(87.0, 28.0)
];
var promise = bmgl.sampleTerrainMostDetailed(terrainProvider, positions);
bmgl.when(promise, function(updatedPositions) {
    // positions[0].height and positions[1].height have been updated.
    // updatedPositions is just a reference to positions.
});