How can i transform a surface from mathlab into a 3D-printable file or to get the view in a 3D programm?

i have just some points from a file, just x and y.

I try to make a surface with those points but the problem is, how can i make that in a 3D File to print a object in 3D-Printer.

The hight from the surface is not clear but the main problem is converting or the information to open that in Blender or 3D-Slicer.

[darova]

Maybe STLWRITE ?

[Jan Nabo]

where does my stl file saved ? i can't wrote that like that way.

didn't work :(

[darova]

Did you create a surface?

[Jan Nabo]

yeah like that in the picture, its just x and y points and i have the hight of 1 cm -> so i want to create first of all a 3D-figure -> after that i want to put it in a 3D-printable file but i have to research more

Answer 1

[Jan Nabo]

clear

name='010010_XBlock';

blockdistance=67.2;

blockhoehe=5;

info=dicominfo(name);

sz=size(info.BeamSequence.Item_1.BlockSequence.Item_1.BlockData,1);

b(:,1)=info.BeamSequence.Item_1.BlockSequence.Item_1.BlockData(1:2:sz)/10;

b(:,2)=info.BeamSequence.Item_1.BlockSequence.Item_1.BlockData(2:2:sz)/10;

kx = -10:.1:10;

ky = -10:.1:10;

kz = blockdistance:-0.1:blockdistance-blockhoehe;

sz_x=size(kx,2);

sz_y=size(ky,2);

sz_z=size(kz,2);

bin=nan(sz_y,sz_x,sz_z);

[X,Y] = meshgrid(kx,ky);

for i=1:sz_z

x=kz(i)*b(:,1)/100;

y=kz(i)*b(:,2)/100;

bin(:,:,i)=inpolygon (X,Y,x,y);

end

it works

make_STL_of_Array('test.stl',bin,0.1,0.1,0.1);

only problem is i want to smooth and refine my 3D Object

Answer 2

[Chidvi Modala]

surf2solid takes a surface (a function z of (x,y) or (theta,r)) and convert this into a solid, much as meshz does, but a little more useful for outputting as an STL for fabrication in a 3D printer.