stl fusion of two files

Hi!

I am trying to put a simple triangle in 3D on top of a cylindre in 3D too. I know it seems easy to do but I'm just starting to use MATLAB with STL and I don't know how to write the function to fusion these two designs.

Here is the start of our code for the fusion function:

Thanks:)

[Golbarg]

Hi!

I hope you have found a way. I'm almost new in MATLAB and I'm trying to do the same thing. My geometries are a little bit complicated and I want to combine their stl files.

I appreciate any help :)

[Fabio Freschi]

If you attach your file with a simple demo input, it would be easier to help.

Answer 1

[Fabio Freschi]

While waiting for more details about the inputs, I make my guesses.

• if your objectSTL has nodes/faces/normals, you can't address them like you did. They are likely structures, so you should write something like

f1 = objectSTL1.face;
v1 = objectSTL1.vertex;
n1 = objectSTL1.normals;

• your concatenation cannot be correct. In fact each object has its own numeration of vertices. Use something like

objectSTL3.face = [f1; f2+size(v1,1)];
objectSTL3.vertex = [v1; v2];
objectSTL3.normals = [n1; n2];

• now you realize that your temporary variables are useless

objectSTL3.face = [objectSTL1.face; objectSTL2.face+size(v1,1)];
objectSTL3.vertex = [objectSTL1.vertex; objectSTL2.vertex];
objectSTL3.normals = objectSTL1.normals; objectSTL2.normals];

Answer 2

[DGM]

See also:

https://www.mathworks.com/matlabcentral/answers/2131056-combine-two-stl-into-one#answer_1568109