matlab GUI函数图重复显示
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发布时间：2022-04-12 13:45
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热心网友
时间：2022-04-12 15:14
函数m要改成如下
function m
global hedit1 hedit2 hpush%定义全局变量
t=linspace(0,2*pi,100);
fill(cos(t),sin(t),'r'); %太阳
hold on;
plot(4*cos(t),sin(t)*4,'k'); %轨迹线
set(gca,'position',[0 0.11 0.7 0.8])
a=0.1;b=0;
xe=4*cos(a)+cos(t)*0.6;
ye=4*sin(a)+sin(t)*0.6;
He=fill(xe,ye,'b'); %地球
set(gcf,'doublebuffer','on'); %启动双缓存
hold off; %这里需要hold off
aa=gca;
axis([-6,6,-6,6]);
axis square;
title('simulate solar system')
%设置右边提示
axes('position',[0.75,0.1,0.25,0.8]);
fill(0.2+cos(t)*0.18,0.75+sin(t)*0.08,'r');
ylim([0,1]);xlim([0,0.9]);
text(0.5,0.75,'Sun');
hold on;
fill(0.2+cos(t)*0.1,0.5+sin(t)*0.05,'b');
text(0.5,0.5,'Earth');
hold off; %这里需要hold off
axis off
axes(aa);%选取图形坐标轴
k=1;da=0.1;db=0.5;
while k;
if strcmp(get(hedit2,'string'),'')
n=0.1;
else
n=str2double(get(hedit2,'string'));
end
a=a+da;
b=b+db;
xe=4*cos(a)+cos(t)*0.6; % 计算地球的横坐标数据
ye=4*sin(a)+sin(t)*0.6; % 计算地球的纵坐标数据
set(He,'xdata',xe,'ydata',ye);%更新地球的数据
pause(n); % 暂停一下显示动画效果
end
