matlab mesh2d issue which cant be found - matlab

Question

im trying to use mesh2d function according to a guide I read.
for some reason im getting all the time this issue:
Undefined function 'mesh2d' for input arguments of type 'double'.
Error in Try1 (line 88)
[p,t] = mesh2d(allnodes, alledges);
I install mesh2d , according to the guide here:
https://github.com/dengwirda/mesh2d
but for some reason im still getting this issue...
this is my code:(im adding the code so it whould be easier in case im missing something, instead il mark the bad part)
clf
file = 'pattern3';
P = imread('Pattern3.png');
P = P(400:3400, 400:3400);
P = 255 - P*6;
P = 1-im2bw(P);
Nmin = min(size(P));
P = P(1:Nmin, 1:Nmin);
[xg, yg] = meshgrid(1:Nmin, 1:Nmin);
P((xg - Nmin/2).^2 + (yg - Nmin/2).^2 > 0.99*0.25*Nmin^2) = 0;
P = padarray(P, [1 1], 0);
CC = bwconncomp(P);
dtheta = pi/24;
theta = (-pi:dtheta:(pi-dtheta))';
nodeouter = [1.1*cos(theta) 1.1*sin(theta)];
Nnodes = length(nodeouter);
nodelist = (1:Nnodes)';
allnodes = nodeouter;
alledges = [nodelist , mod(nodelist, Nnodes)+1];
for n = 1:CC.NumObjects
%for n = 2:2
newP = zeros(size(P));
newP(CC.PixelIdxList{1,n}(:)) = 1;
newP = filter2(fspecial('average',5),newP);
C = contourc(newP,[0.2 0.2]);
C = C(:,2:end)';
C2 = dpsimplify(C,1);
m = 1;
while m <= length(C2(:,1))
if(C2(m,1) == 1 || C2(m,2) == 1)
C2(m,:) = [];
else
m = m + 1;
end
end
C2 = (C2 - Nmin/2)/(Nmin/2);
C = (C - Nmin/2)/(Nmin/2);
figure(1)
hold all
plot(C2(:,1), C2(:,2))
axis image xy
drawnow
nodeinner = C2;
Nnodeshole = length(nodeinner);
nodelist = (1:Nnodeshole)';
edgelist = [nodelist , mod(nodelist, Nnodeshole)+1];
edgelist = edgelist + Nnodes;
allnodes = [allnodes; nodeinner];
alledges = [alledges; edgelist];
Nnodes = Nnodes + Nnodeshole;
n
end
%%
hdata.fun = #(x,y) 0.05*(1 + ((x.^2 + y.^2)/a^2)).^2;
[p,t] = mesh2d(allnodes, alledges); %%here is the issue!!!!!!!!!!!!!!!!!!!!!!!1
%%
as = 0.5;
for n = 1:length(as)
a = as(n);
h = 0;
x = p(:,1);
y = p(:,2);
z = zeros(size(x));
r = sqrt(x.^2 + y.^2);
phi = atan2(y,x);
theta = atan(r/(a+h));
alpha = 2*theta;
xnew = a*sin(alpha).*cos(phi);
ynew = a*sin(alpha).*sin(phi);
znew = -a*cos(alpha);
p2 = [xnew, ynew, znew];
stlwrite('Test.stl', t, p2)
fv.faces = t;
fv.vertices = p2;
clf
figure(3)
patch(fv, 'FaceColor', [1 1 1], 'EdgeColor', 'black', 'LineWidth', 0.1)
axis equal
axis off
xlim([-a a])
ylim([-a a])
zlim([-a a])
camlight head
view(58,28)
zoom(1.5)
drawnow
end
the photo im trying to use:

Answer 1

I recently completely rewrote MESH2D -- bringing it up-to-date with more recent meshing techniques and MATLAB functionality. It looks like you are trying to use subroutines from old versions of the library.
Based on the updates, the routines you want are refine2 and smooth2 (they build and then optimise a two-dimensional constrained Delaunay triangulation).
I recommend that you have a look at the example code contained in tridemo to see how the updated MESH2D toolbox works.