Introduction - If you have any usage issues, please Google them yourself
Based on webgl implementation, according to the STL format 3 d file to read and automatically adjust its size to adapt it to the display window size, and automatically achieve its center, and realize the mouse operation zoom in translation. Note: to use firefox browser to open, because is the local web pages, other browsers for security cannot read a local file, the web is deployed to the web site can use other browser display