matlab画极坐标心形线,matlab画心形线

matlab画心形线

clear ;

close all;

clc

h1=figure('name','爱的表达');

axis([-1.5 1.5 -2 0.5]);

axis off;

set(gcf,'color','black');

n=4;

a=320;

m=10^(-a);

h11=line(NaN,NaN,'marker','.','linesty','-','erasemode','none','color','g');

x1=[];

y1=[];

for theta=pi/2:-2*pi/999:-3*pi/2

r1=1+cos(theta+pi/2);

x1=[x1;r1*cos(theta)];

y1=[y1;r1*sin(theta)];

set(h11,'xdata',x1,'ydata',y1);

pause(m);

end

pause(1);

fill(x1,y1,'r');

axis off;

set(gcf,'color','black');

text(-0.16*n,-0.85,'小依','fontsize',n*18,'color','b');

title('心形线','fontsize',18,'color','m');

disp('love you');

pause(1);

x2=[];

y2=[];

h22=line(NaN,NaN,'marker','.','linesty','-','erasemode','none','color','y');

for theta=pi/2:-2*pi/999:-3*pi/2

r2=1+cos(theta+pi/2);

x2=[x2;r2*cos(theta)];

y2=[y2;r2*sin(theta)];

set(h22,'xdata',x2,'ydata',y2);

pause(m^19);

end

h2=figure('name','ai');

fill(x2,y2,'r');

text(-0.58,-0.7,'i love you','fontsize',40,'color','b');

text(-0.17,-1.1,'yushao','fontsize',18,'color','k');

title('心形线','fontsize',18,'color','m');

axis off;

set(gcf,'color','black');

pause(1)

x3=[];

y3=[];

h33=line(NaN,NaN,'marker','.','linesty','-','erasemode','none','color','b');

for theta=pi/2:-2*pi/999:-3*pi/2

r3=1+cos(theta+pi/2);

x3=[x3;r3*cos(theta)];

y3=[y3;r3*sin(theta)];

set(h33,'xdata',x3,'ydata',y3);

pause(m^19);

end

参考：百度文库