How to visualise 10000 cell volume
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Pierre Lebel
le 25 Sep 2019
Commenté : Pierre Lebel
le 11 Oct 2019
I have tried to view this system in 3D using patch. It is very slow. I've seen other software do this much much faster, even with transparency. What am i missing?
2 commentaires
Fabio Freschi
le 25 Sep 2019
Any data? I visualize easily millions of patches but it is difficult to help without a simple example of the data
Jan
le 25 Sep 2019
Please explain any details. How are the "10000 cell volume" represented? If you post code and data, it is likely, that the speed can be improved.
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Fabio Freschi
le 25 Sep 2019
Load nodes and faces in a unique structure and plot all patches in a single command
tic
nodes = []; faces = [];
for i = 1:length(PatchWork)
faces = [faces; PatchWork{i}.FaceVertices+size(nodes,1)];
nodes = [nodes; PatchWork{i}.VertexXYZs.'];
end
figure
patch('Faces',double(faces),'Vertices',nodes,'FaceColor','red');
view([1 1 1]);
toc
>> Elapsed time is 1.018881 seconds.
11 commentaires
Fabio Freschi
le 11 Oct 2019
The point is: if there are duplicated nodes, so that each face has its own set of nodes, so you won't have problems in using 'FaceVertexAlphaData'.
There is still the fact that you must address the specific property to the right node. and this may not be simple if your data are generated by an unknown software/function (like an independent mesh generator). I actually haven't check your data in details, but you may know what you really have as input.
I usually work with non-duplicated nodes, like in finite element meshes. In this case, for example, one of your corner nodes is hsared by three faces. Suppose that this corner node is the first node for all 3 faces: so you cannod specify different transparencies for these faces.
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