trisurf
Triangular surface plot
📝Syntax
trisurf(T, x, y, z)
trisurf(TO)
trisurf(..., c)
trisurf(..., Name, Value)
h = trisurf(...)
📄Description

trisurf plots a 3-D triangular surface from a triangle connectivity matrix or a triangulation object.

💡Examples
Plot the convex hull facets of random 3-D points.
P = randn(30, 3);
T = convhulln(P);
trisurf(T, P(:, 1), P(:, 2), P(:, 3), 'FaceAlpha', 0.4)
Example illustration 
N = 5e3;
g = randn(3,N);
p = g./vecnorm(g);
k = convhull(p');
c = @(x) sparse(k(:,x)*[1,1,1],k,1,N,N);
t = c(1) | c(2) | c(3);
w = spdiags(-sum(t,2)+1, 0, double(t));
Y = rand(N,1);
A = speye(N);
smoothness  = 10;
x   = (A + smoothness *w' * w) \ Y;
p2 = p .* x';
trisurf(k,p2(1,:),p2(2,:),p2(3,:),'FaceC', 'w', 'EdgeC', 'none','AmbientS',0,'DiffuseS',0.6,'SpecularS',1);
light;
axis equal
axis off
🔗See Also
patchsurftriplottriangulation
🕔Version History
Version Description
2.0.0 Initial version.
Edit this page on GitHub