摘要：
//粘贴//铯.sampleTerrain（//铯初始化地形提供程序，//0，//位置//所有点的排列//）。然后（function（updatedCartographics）｛//console.log（updatedCArtographic）；//for（vari=0；i＜updatedCartographics.length；
//贴地
// Cesium.sampleTerrain(
// cesiumInit.terrainProvider,
// 0,
// positions//所有点的arry
// ).then(function (updatedCartographics) {
// console.log(updatedCartographics);
// for(var i=0;i<updatedCartographics.length;i++){
// var cartographic = updatedCartographics[i];
// entityArr[i].position = Cesium.Cartesian3.fromRadians(
// cartographic.longitude,
// cartographic.latitude,
// cartographic.height
// ),
// viewer.entities.add(entityArr[i])
// }
// viewer.zoomTo(viewer.entities);
// });
方法2
var options = {
camera : viewer.scene.camera,
canvas : viewer.scene.canvas,
clampToGround: true //开启贴地
}
var dataSource = new Cesium.CzmlDataSource();
viewer.dataSources.add(dataSource,options);
方法3
//贴地
// var position = positionProperty.getValue(viewer.clock.currentTime);
// var objectsToExclude = [vehicleEntity];
// vehicleEntity.position = viewer.scene.clampToHeight(position, vehicleEntity);//贴地