# How to import geometry from STL without approximation ?

조회 수: 10(최근 30일)
Sung Wook Choi 2021년 8월 28일
댓글: Sung Wook Choi 2021년 8월 29일
Hi all.
I'm now trying to generate geometry from stl file.
ImportGeometry from .stl makes too low density of vertices(and edges) to simulate because of approximation.
In this reason, I added more vertices to original geometry.
Is there any method to import all vertices of stl file or increse vertices density of geometry?
Thanks.

댓글을 달려면 로그인하십시오.

### 채택된 답변

darova 2021년 8월 29일
Here is an example. Read more: 2-D Geometry Creation at Command Line
t = 0:0.2:2*pi; % make sure the curve is unclosed (decsg throws an error)
r = 5 + sin(5*t);
[x,y] = pol2cart(t,r);
dl = [2; length(x); x(:); y(:)]; % [polygon; # of points; x; y]
gd = decsg(dl); % decomposition
[p,e,t] = initmesh(gd,'Hmax',0.5); % max side triangle 0.5
pdemesh(p,e,t);
hold on
plot(x,y,'.g')
##### 댓글 수: 1표시숨기기 없음
Sung Wook Choi 2021년 8월 29일
Thanks darova! I sort vertices in contour lines and draw geometry using decsg function. It works!

댓글을 달려면 로그인하십시오.

R2021a

### Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by