How to customize rectangular face meshing for 3D model?

Dear all,

I have a 3D model, and I want to get the coordinates of points on the surface by my wishes like the picture of the cylinder below.

So my concerns here are:

- How do I change from triangle meshing to rectangular meshing?

- With the small diameter, how can I change the size of the rectangular to get more density data?

[darova]

What format of data do you have? MATLAB don't have built-in function to convert triangular mesh to rectangular

[Son Bui]

Dear Darova,

I have a SolidWorks part. Would you suggest me any ideas?

Thank a lot!

[darova]

First of all you need to export your model as .stl format. Use stlread to import it to MATLAB

[Son Bui]

Thank you, I have export this model to *.stl and import it to Matlab using importGeometry. Everything looks fine but I want to you mesh my model's surface as the picture in my question above.

[darova]

Can you attach your data? Maybe you can just interpolate it

[Son Bui]

For sure, here you are

[darova]

whoa. Can't read. It'' too large. Do you have smaller sample file?

Answer 1

[darova]

If model is simple it can be created in MATLAB

t = linspace(0,2*pi,30);
z = linspace(0,10,20);
[x,y] = pol2cart(t,1);
[X,Z] = meshgrid(x,z);
[Y,~] = meshgrid(y,z);

h(1) = surf(X,Y,Z);                 % bottom cylinder
h(2) = surface(X/2,Y/2,Z/2+10);     % top cylinder

r = linspace(0,1,10);
[T,R] = meshgrid(t,r);
[X,Y] = pol2cart(T,R);
[X1,Y1] = pol2cart(T,R/2+0.5);
h(3) = surface(X,Y,X*0);            % bottom circle
h(4) = surface(X1,Y1,X1*0+10);      % middle ring
h(5) = surface(X/2,Y/2,X*0+15);     % top circle

set(h,'facecolor','b')
light
axis vis3d

[Son Bui]

Thank you so much for attending! Although it's not my needed, I feel thankful with your comment.