读取stl文件，可以高效快速读取，利用OpenGl ES实现作图-Read the STL file, can rapid and efficient reading, realize mapping using OpenGl ES

用H5+javascr ipt,THREEJS库编写的三维动画,读取多个STL对象并生成动画,鼠标左,中,右键可操控.(Using H5+javascr ipt, THREEJS library to write 3D animation, read multiple STL objects and generate animation, the mouse left, middle, right keys can be manipulated.)