%北太天元演示簡(jiǎn)筆畫(huà)過(guò)程

?clc

clear all

close all

load_plugin("time");

fill([-12 -12 7 7],[-12 3 3 -12],[?0.5843???0.8157???0.9882]);

%axis equal;

%axis([-12 7 -12 3]);

hold on;

pause(1);

t=0:0.01:2*pi;

%left hand

plot([-1.8 -4],[-2.9 -1],'r','LineWidth',4);

hold on;

pause(1);

%right hand

plot([1.8 4],[-2.9 -1],'r','LineWidth',4);

hold on;

pause(1);

%upper circle

x=cos(t);

y=sin(t);

fill(x,y,'w');

%axis equal;

%axis([-12 7 -12 3]);

hold on;

pause(1);

%middle circle

x=2*cos(t);

y=-2.8+2*sin(t);

fill(x,y,'w');

%axis equal;

%axis([-12 7 -12 3]);

pause(1);

%lower circle

x=3*cos(t);

y=-7.5+3*sin(t);

fill(x,y,'w');

%axis equal;

%axis([-12 7 -12 3]);

pause(1);

%botam

x=0.25*cos(t);

y=-2+0.25*sin(t);

fill(x,y,'k');

%axis equal;

%axis([-12 7 -12 3]);

pause(1);

x=0.25*cos(t);

y=-4+0.25*sin(t);

fill(x,y,'k');

%axis equal;

%axis([-12 7 -12 3]);

pause(1);

x=0.25*cos(t);

y=-7+0.25*sin(t);

fill(x,y,'k');

%axis equal;

%axis([-12 7 -12 3]);

pause(1);

x=0.25*cos(t);

y=-9+0.25*sin(t);

fill(x,y,'k');

%axis equal;

%axis([-12 7 -12 3]);

pause(1);

%eyes

x=-0.5+0.25*cos(t);

y=0.4+0.25*sin(t);

fill(x,y,'k');

%axis equal;

%axis([-12 7 -12 3]);

pause(1);

x=0.5+0.2*cos(t);

y=0.4+0.2*sin(t);

fill(x,y,'k');

%axis equal;

%axis([-12 7 -12 3]);

pause(1);

%mouth

t=-0.3:0.1:0.3;

y=t.^2-0.5;

plot(t,y,'k','LineWidth',2);

%axis([-12 7 -12 3]);

pause(1);

%hat

plot([-1 1],[0.8 0.8],'k','LineWidth',5);

pause(1);

fill([-0.6 -0.6 0.6 0.6],[0.8 2 2 0.8],'k');

pause(1);

%nose

fill([-0.15 -0.15 1.5],[0.1 -0.2 -0.3],[1 0.5 0]);

pause(1);

%

text(-12,2,'北太天元祝：教師節(jié)快樂(lè)', 'Color','red','FontSize',30)

t=linspace(-2.9,2.9,1000);

X=16.*(sin(t)).^3;

Y=13.*cos(t)-5.*cos(2.*t)-2.*cos(3.*t)-cos(4.*t);

fill(X/10-7,Y/10-5,[180,39,45]./255,'EdgeColor',[180,39,45]./255,'LineWidth',2)