Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
@anbeeyao 这个是因为keyframe可能会被删除，删除后相关的地图点也就可能存在观测为零的情况
尚无回复
