设置最小和最大缩放级别

Question

我用的是3D 3d地图

use var viewer = new Cesium.Viewer("cesiumContainer");
var layers = viewer.scene.imageryLayers;
var blackMarble = layers.addImageryProvider(new Cesium.IonImageryProvider({ assetId: 3812,  minimumLevel : 5 }));

我想用minimumLevel : 5设置最小和最大缩放级别，但地球尺寸变小了

链接：https://cesium.com/learn/cesiumjs/ref-doc/WebMapTileServiceImageryProvider.html

任何建议都是非常感谢的。

链接：working demo

Answer 1

const viewer = new Cesium.Viewer('cesiumContainer', {});

viewer.scene.screenSpaceCameraController.minimumZoomDistance = 6378137;
viewer.scene.screenSpaceCameraController.maximumZoomDistance = 6378137 * 2;