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A problem with 3d visualization on MATLAB

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Luckybuilding

Luckybuilding

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Hi,
I wanna create a 3d surface for my data representing an object.

I have obtained the data for borders of each slice.

However, I can't create any surface!


Used code is:


Code: 
for a=1:length(D(1,1,:))
    X=D(:,:,a);
    BW = im2bw(X,mp,0.75);
    CC = bwconncomp(BW);
    for b=1:CC.NumObjects
        clear TMP;
        TMP=cell2mat(CC.PixelIdxList(b));
        if isempty(find(TMP==fix(p_f)))
            BW(CC.PixelIdxList{b}) = 0;
        end
    end
    O(:,:,a)=imfill(BW,'holes');
end
figure;
phandles = contourslice(O,[],[],[20:57],1);
view(3); axis tight
set(phandles,'LineWidth',2)

Os = smooth3(O);
hiso = patch(isosurface(Os,1),...
    'FaceColor',[1,.75,.65],...
    'EdgeColor','none');


The output image is shown below:

1.jpg
2.jpg


How can I create the surface out of these borders?


Thanks
 

I believe you need a more sophisticated rendering engine. It will connect neighboring data points to create a surface.

It will have features such as shading, hidden surface hiding, etc.
 

BradtheRad said:
I believe you need a more sophisticated rendering engine. It will connect neighboring data points to create a surface.

It will have features such as shading, hidden surface hiding, etc.
Click to expand...


Thanks for your reply.
However, can you be specific and suggest an engine for this?
 

If MATLAB has a 3D rendering module available somewhere, then you're all set.

Otherwise you'll need to use a different programming package.

List of various 3D software rendering engines:

**broken link removed**

Also look into modules such as OpenGL, TBGL, and DirectX. These go with certain programming languages.

Or for a simple surface drawing method...
Draw vertical lines between a data point on one level, to a related data point on another level. Do this several times and it won't be too hard to visualize a solid object.
 

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