Question about STL file
显示 更早的评论
Hello
I have a vector file as xyz How can I calculate normal vector? How can I create a stl file?.
what is the facet in stl file?
Thanks.
采纳的回答
An stl file has two parts. One part contains triplets of vertex IDs, and the other part contains the xyz coordinates of each vertex. The triplets tell you the three corners of a face of your mesh.
In principle there can be more than three IDs, but triangular meshes are the most usual.
The data you have seems to only be the faces array, although maybe the vertices array is hidden in the last part of your array.
Also, the faces array describes the vertices, not the normal vector of that face.
3 个评论
raouf takab
2019-7-25
编辑：raouf takab
2019-7-25
Rik
2019-7-26
The face variable describes how you need to connect the vertices to form your mesh, so without more information or assumptions it's impossible to tell what the face variable should be. You only have a point cloid, not a mesh.
Also, I'm puzzled why you accepted the other answer. It doesn't sound like it solved your problem
raouf takab
2019-7-26
更多回答（1 个）
jahanzaib ahmad
2019-7-25
0 个投票
https://uk.mathworks.com/matlabcentral/fileexchange/20922-stlwrite-write-ascii-or-binary-stl-files?s_tid=srchtitle
类别
在 帮助中心 和 File Exchange 中查找有关 STL (STereoLithography) 的更多信息
产品
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
