您可以尝试制作一个动画模型类似于这个(http://support.supermap.com.cn:8090/webgl/examples/editor.html#KML_crane)
然后通过kml加载进场景中。模型制作的话可以参考这个(https://blog.csdn.net/supermapsupport/article/details/89448795?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522158942065819724811859971%2522%252C%2522scm%2522%253A%252220140713.130102334.pc%255Fblog.%2522%257D&request_id=158942065819724811859971&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2~blog~first_rank_v2~rank_v25-1-89448795.nonecase&utm_term=gltf)