ly1074106000的博客

var p1 = new Cesium.Cartesian3.fromDegrees( 116,39,8);var p2 = new Cesium.Cartesian3.fromDegrees(117,39.9,8);var current=Cesium.JulianDate.now();var endTime= Cesium.JulianDate.addSeconds(current,5,new Cesium.JulianDate());//5秒var property = new Cesiu.

首先说下setInternal的用法setInterval(function(){ console.log(123);}, 30);每间隔30毫秒打印一次requestAnimationFramefunction animloop() { console.log(123); window.requestAnimationFrame(animloop);}可以看到requestAnimationFrame是不需要设置时间间隔的。相当一部分的浏览器的显示频率是16.7ms