How create a 3D- Surface modeling body if u have x,y,z-values

i have a 50x3 Matrix -> i don't know which commands i have to use to transform this into a 3D-objects..

x=b(:,1);

y=b(:,2);

z=b(:,3);

plot3(x,y,z);

for ik=1:50;

VL=[x y z];

disp(VL);

end

• to look this picture

Answer 1

[Star Strider]

Your data describe an outline in a plane. If you want to see it as a volume, duplicate the x and y values, add an offset to the second z value, and use the surf function or similar functions to visualise it.

Example:

x = [1 2 3 4 4 4 5 6 6 5 5 3 1];
y = [4 6 8 9 9 8 7 6 5 4 5 4 4];
z = ones(size(x));

figure
plot3(x, y, z)
grid on
xlim([0  8])
ylim([2 10])

figure
surf([x; x], [y; y], [z; z+5])
grid on
xlim([0  8])
ylim([2 10])
shading('interp')

I do not have your data, so I created my own.

Experiment to get the result you want.

[Jan Nabo]

problem is, that i can't even do my offset, because it tells me that not a matrix.

later i want that to convert or write to stl file.

Isn't that in the list a matrix by z or did i missunderstood something

[Star Strider]

My code is an illustration of the appropriate approach, since I do not have your data.

If you have column vectors, try this instead:

surf([x, x]', [y, y]', [z, z+5]')

The rest of my code is unchanged.

[Jan Nabo]

well thx body, that helped me alot!!!

i have to learn more and i hope i will get more results.

I am new to this

[Star Strider]

My pleasure!

If my Answer helped you solve your problem, please Accept it!