A New STL Data Compressed Storage Format
Congjun Wang · Zhongguo jixie gongcheng · 2001
In order to improve the data redundancy and inconvenience of STL file, the authors advance a new STL data file storage format - compressed STL format. In this format the vertexes are sorted by z, y, x axes and stored sequentially, then the index of triangle face to vertex are established and stored. The all information of STL file is remained in this format and the data redundancy is reduced as possible, the length of compressed STL file is reduced to the 1/3 to 1/2 of original binary STL file. It is convenience for the file transmitting of network manufacturing. Moreover, the reading and pretreatment time of data file is shortened greatly because of the sorting of data.