Generate coordinates for plotting a hexagonal mesh with the nsidedpoly function

27 vues (au cours des 30 derniers jours)
Hi, I am trying to plot a hexagonal mesh using the nsidedpoly function as shown in the following code. I am taking the coordinates (coord array) from a file but I want to generate them myself in the code. How can I do this, by rings and counterclockwise, as shown in the figure?
Thank in advance.
radius = 5.6617/(sqrt(3)/2);
coord = [x(230:235, :)
x(256:262, :)
x(282:289, :)
x([308:310,312:316], :)
x(334:343, :)
x([360:364,366,368:370], :)
x(387:396, :)
x([414:416,418:422], :)
x(441:448, :)
x(468:474, :)
x(495:500, :)];
for i = 1:length(coord)
poly(i) = nsidedpoly(6, 'Center', coord(i, :), 'Radius', radius);
end
pg = plot(poly);
axis off
axis equal
% Convert num2str
POS = num2str(POSITIONS);
% Convert str2double
for i = 1:length(POSITIONS)
c = POS(i, :);
p(i, :) = str2double(c(~isspace(c)));
end
a = 0.5;
b = 1.5;
r = (b-a).*rand(87, 1) + a;
r = [p [1:87]'];
power = repmat([], 87, 1);
power(1:6, :) = r(ib(1:6), :);
power(7:13, :) = r(ib(7:13), :);
power(14:21, :) = r(ib(14:21), :);
power(22:29, :) = r(ib(22:29), :);
power(30:39, :) = r(ib(30:39), :);
power(40:48, :) = r(ib(40:48), :);
power(49:58, :) = r(ib(49:58), :);
power(59:66, :) = r(ib(59:66), :);
power(67:74, :) = r(ib(67:74), :);
power(75:81, :) = r(ib(75:81), :);
power(82:87, :) = r(ib(82:87), :);
nLevel = 256;
cmap = colormap(jet(nLevel));
polyFaceColor = cmap(ceil((power(:, 2)-a)*nLevel/100), :);
for i = 1:length(pg)
pg(i).FaceColor = polyFaceColor(i, :);
pg(i).FaceAlpha = 0.5;
end
str = num2str(power(:, 2), 4);
t2 = text(coord(:, 1), coord(:, 2), str,'HorizontalAlignment', 'center','VerticalAlignment','middle', 'FontSize', 10, 'FontName', 'Times');

Réponse acceptée

Matt J
Matt J le 6 Mar 2022
Modifié(e) : Matt J le 6 Mar 2022
C=arrayfun(@edgesamp,1:6,'uni',0); C=vertcat(C{:});
x=C(:,1); y=C(:,2);
n=numel(x);
p0=nsidedpoly(6,'Radius',1);
p=arrayfun(@(x,y)translate(p0,x,y),x,y);
plot(p); axis equal
text(x,y,string(1:n),'FontSize',12,'Horiz','center','Vert','mid')
function c=edgesamp(i)
p=rotate(nsidedpoly(6,'Radius',i*sqrt(3)),30);
v=flipud(p.Vertices([1:end,1],:));
c=diff(v,1,1).*reshape((0:i-1)/i,1,1,[])+v(1:end-1,:);
c=permute(c,[3,2,1]);
c=cell2mat(reshape( num2cell(c,[1,2]),[],1));
c=circshift(c,[(i-1),0]);
end
  3 commentaires
Matt J
Matt J le 6 Mar 2022
Yep, see the revised code.
Yro
Yro le 6 Mar 2022
It's amazing, thank you so much for your help.

Connectez-vous pour commenter.

Plus de réponses (0)

Produits


Version

R2019a

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by