How to find minimum thickness of 3D .stl file ?

Now I got .stl file, and I imported to matlab via stlread function (https://www.mathworks.com/matlabcentral/fileexchange/22409-stl-file-reader).

So I've face, vertices and normal vector of my .stl file. How can I get thickness of each point of my .stl file ?

Or is there any alternative way for finding minimum thickness of .stl file.

Answer 1

[Imran]

Hello Teerapong.

I understand that you've imported the .stl file in MATLAB and you want to get the thickness of each point in the .stl file.

In order to fetch the thickness of each point

1. Import the .stl using stlread function

TR = stlread('FILENAME');

2. Create and plot a triangulation object from the data contained in the .stl file. and store the line object.

h = triplot(TR)

3. There's one property called "MarkerSize" of the object. This property value will give you the thickness of points. Make sure the "Marker" property is not "none".

disp(h.MarkerSize)

I hope this help.

[DGM]

This obviously doesn't solve the problem. OP asked to find object thickness. This simply returns the default marker size, which is irrelevant. The marker size is completely independent of the model geometry or physical units.

unzip testfiles.zip

% a 1x1x1 mm cube
TR = stlread('unitcube.stl');
h = triplot(TR);

●

disp(h.MarkerSize)

     6

% a 1x1x1 km cube
TR = stlread('megacube.stl');
h = triplot(TR);

disp(h.MarkerSize)

     6