how can i plot the convex hull????

2015 11 8
2 个回答
回答已采纳
更新时间：2020 9 5
8 次查看（30 天）

0 个投票

How can I plot the convex hull(k) in the axes:
net = [1:n;rand([1,n])*x;rand([1,n])*y];
net1 = net;
plot(net(2,:),net(3,:),'bo','MarkerSize',5,'MarkerFaceColor','b');
xx=net(2,:);
yy=net(3,:);
dt = DelaunayTri(xx',yy');
P = [xx',yy'];
[K AV] = convexHull(dt)
I try different plot but they don't work:
%trisurf(K, dt.xx(:,1),dt.xx(:,2),dt.xx(:,3), 'FaceColor', 'cyan')
%plot(dt.xx(K,1),dt.xx(K,2), 'r');
%K =convexHull(dt);
%plot (K,'-.r');
and I have different error message
plz help me

请先登录，再回答此问题。

 采纳的回答

Image Analyst
Image Analyst 2015-11-8

1 个投票

Add this code:
hold on;
plot(xx(K), yy(K), 'r');
and don't use that function, like the help says. It's been deprecated. Use convhull() instead.

更多回答（1 个）

0 个投票

you have to specify the x,y coordinates of the nodes of the network that represents width and length of the network respectively ....
so the width,length should be assigned to nombers for example : 100
x=100;
y=100;
hopefully , thats going to work
israa
iraq

类别

在 帮助中心 和 File Exchange 中查找有关 Surface and Mesh Plots 的更多信息

标签

Community Treasure Hunt

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

Start Hunting!

Translated by