suf2stl: a program fore converting .surf files to .stl files?

I want to convert .surf surface files to STL files. There is a surf2stl program, but it produces errors. Any help abailable? I am using Matlab online. The link to surf2stl follows: can you tell me how to use it properly?

Thanks, Rick Russell

[e-mail]

https://www.mathworks.com/matlabcentral/fileexchange/4512-surf2stl

[Durganshu]

What is the error that you're getting?

[DGM]

The surf2stl() function is for converting simple gridded data (as would be used with the surf() function) to an STL file.

It doesn't have anything specifically to do with 3D-XplorMath .surf files. I don't know of any decoders for importing such a file, though I found a format description.

Either way, these appear to be open, self-intersecting surfaces. Converting it to an STL isn't going to be enough to make it printable.

Answer 1

[Richard Russell]

Hi, Deeds,

Sorry for the delay in responding, and thank you for answering! I'm so inexperienced with Matlab that I can't really describe the errors. It's best if I give you the link to the Surf2STL script and the .surf file. That file was sent me by the mathematician who developed the 4-soliton model, visible Here:

http://virtualmathmuseum.org/Surface/four-soliton/four-soliton.html

That model is something I'd like to print in 3D via my Shapeways "shop":

https://www.shapeways.com/shops/mathematicalcreations

I have attached the .surf file that Hermann, the mathematician who created it, has sent me. Please respond to me at [e-mail], if you have tthe time,check that email address daily.. If you should have suggestions, or can convert the surf file into an STL file foor me, I'd be very grateful: I'm stumped!

Here is the surf2stl link: https://www.mathworks.com/matlabcentral/fileexchange/4512-surf2stlv

Thank you so much for your help!

Yours, Rick Russell

Answer 2

[ConanTaieb]

Hello,

I have a 3D plot and I want convert it to stl file. I tried the “stlwrite” but stlwrite eliminates repeated data points “Duplicate data points have been detected and removed” .

Please, could you help me?

Thank you

[x,y] = meshgrid(0:1:10,0:1:10);
z = 0*x;
S=x;
k=linspace(6,10,11);
for n=1:11
    S(:,n)=k(n);
end
X=[x,10*ones(11,11),x];
Y=[z,x,S];
Z=[y,y,y];
surf(X,Y,Z)

stlwrite('TEST.stl',X,Y,Z)

[darova]

Convert your surface to patch and write

h = surf(X,Y,Z);
p = surf2patch(h,'triangles');
stlwrite(p,'TEST.stl')

[DGM]

Either way, an STL file of a triangulated surface contains three vertices for every face. No more, no less. Vertices are only defined within the context of a face, so unreferenced vertices do not exist either.

It's an informational warning. It's not an error.