matlab画图函数之plot等的经典应用matlab图行绘制三
Posted 张叔zhangshu
tags:
篇首语：本文由小常识网(cha138.com)小编为大家整理，主要介绍了matlab画图函数之plot等的经典应用matlab图行绘制三相关的知识，希望对你有一定的参考价值。
利用 MATLAB绘图函数，绘制模拟电路演示过程，要求电路中有蓄电池、开关和灯，开关默认处于不闭合状态。当开关闭合后，灯变亮
clear all
clc
figure('name','模拟电路图');
axis([-4,14,0,10]); %建立坐标系
hold on %保持当前图形的所有特性
axis('off'); %关闭所有轴标注和控制
%绘制蓄电池的过程
fill([-1.5,-1.5,1.5,1.5],[1,5,5,1],[0.5,1,1]);
fill([-0.5,-0.5,0.5,0.5],[5,5.5,5.5,5],[0,0,0]);
text(-0.5,1.5,'—');
text(-0.5,3,'电池');
text(-0.5,4.5,'+');
%绘制导电线路的过程
plot([0;0],[5.5;6.7],'color','r','linestyle','-','linewidth',4);%绘制二维图形线竖实心红色
plot([0;4],[6.7;6.7],'color','r','linestyle','-','linewidth',4); %绘制二维图形线，实心红色为导线
a=line([4;5],[6.7;7.7],'color','b','linestyle','-','linewidth',4,'erasemode','xor');%画开关蓝色
plot([5.2;9.2],[6.7;6.7],'color','r','linestyle','-','linewidth',4);%绘制图导线为红色
plot([9.2;9.2],[6.7;3.7],'color','r','linestyle','-','linewidth',4);%绘制图导线竖线为红线
plot([9.2;9.7],[3.7;3.7],'color','r','linestyle','-','linewidth',4); %绘制图导线横线为红色
plot([0;0],[1;0],'color','r','linestyle','-','linewidth',4); %如上画红色竖线
plot([0;10],[0;0],'color','r','linestyle','-','linewidth',4);%如上画横线
plot([10;10],[0;3],'color','r','linestyle','-','linewidth',4);%画竖线%绘制灯泡的过程
fill([9.8,10.2,9.7,10.3],[3,3,3.3,3.3],[0 0 0]);%确定填充范围
plot([9.7,9.7],[3.3,4.3],'color','b','linestyle','-','linewidth',0.5); %绘制灯泡外形线为蓝色
plot([10.3,10.3],[3.3,4.45],'color','b','linestyle','-','linewidth',0.5);%绘制圆
x=9.7:pi/50:10.3;
plot(x,4.3+0.1*sin(40*pi*(x-9.7)),'color','b','linestyle','-','linewidth',0.5);
t=0:pi/60:2*pi;
plot(10+0.7*cos(t),4.3+0.6*sin(t),'color','b');
%下面是箭头及注释的显示
text(4.5,10,'电流方向');
line([4.5;6.6],[9.4;9.4],'color','r','linestyle','-','linewidth',4,'erasemode','xor'); %绘制箭头横线
line(6.7,9.4,'color','b','linestyle','-','erasemode','xor','markersize',10);%绘制箭头三角形
pause(1);
%绘制开关闭合的过程
t=0;
y=7.6;
while y>6.6 %电路总循环控制开关动作条件
x=4+sqrt(2)*cos(pi/4*(1-t));
y=6.7+sqrt(2)*sin(pi/4*(1-t));
set(a,'xdata',[4;x],'ydata',[6.7;y]);
drawnow;
t=t+0.1;
end
%绘制开关闭合后模拟大致电流流向的过程
pause(1);
light=line(10,4.3,'color','y','marker','.','markersize',40,'erasemode','xor'); %画灯丝发出的光： 黄色
%画电流的各部分
h=line([1;1],[5.2;5.6],'color','r','linestyle','-','linewidth',4,'erasemode','xor');
g=line(1,5.7,'color','b','linestyle','-','erasemode','xor','markersize',10);
%给循环初值
t=0;
m2=5.6;
n=5.6;
while n<6.5; %确定电流竖向循环范围
m=1;
n=0.05*t+5.6;
set(h,'xdata',[m;m],'ydata',[n-0.5;n-0.1]);
set(g,'xdata',m,'ydata',n);
t=t+0.01;
drawnow;
end
t=0;
while t<1; %在转角处的停顿时间
m=1.2-0.2*cos((pi/4)*t);
n=6.3+0.2*sin((pi/4)*t);
set(h,'xdata',[m-0.5;m-0.1],'ydata',[n;n]);
set(g,'xdata',m,'ydata',n);
t=t+0.05;
drawnow;
end
t=0;
while t<0.4 %在转角后的停顿时间
t=t+0.5;
g=line(1.2,6.5,'color','b','linestyle','-','markersize',10,'erasemode','xor');
g=line(1.2,6.5,'color','b','linestyle','--','markersize',10,'erasemode','xor');
set(g,'xdata',1.2,'ydata',6.5);
drawnow;
end
pause(0.5);
t=0;
while m<7 %确定第二个箭头的循环范围
m=1.1+0.05*t;
n=6.5;
set(g,'xdata',m+0.1,'ydata',6.5);
set(h,'xdata',[m-0.4;m],'ydata',[6.5;6.5]);
t=t+0.05;
drawnow;
end
t=0;
while t<1 %在转角后的停顿时间
m=8.1+0.2*cos(pi/2-pi/4*t);
n=6.3+0.2*sin(pi/2-pi/4*t);
set(g,'xdata',m,'ydata',n);
set(h,'xdata',[m;m],'ydata',[n+0.1;n+0.5]);
t=t+0.05;
drawnow;
end
t=0;
while t<0.4%在转角后的停顿时间
t=t+0.5;
%绘制第三个箭头
g=line(8.3,6.3,'color','b','linestyle',':','markersize',10,'erasemode','xor');
g=line(8.3,6.3,'color','b','linestyle','-.','markersize',10,'erasemode','xor');
set(g,'xdata',8.3,'ydata',6.3);
drawnow;
end
pause(0.5);
t=0;
while n>1 %确定箭头的运动范围
m=8.3;
n=6.3-0.05*t;
set(g,'xdata',m,'ydata',n);
set(h,'xdata',[m;m],'ydata',[n+0.1;n+0.5]);
t=t+0.04;
drawnow;
end
t=0;
while t<1 %箭头的起始时间
m=8.1+0.2*cos(pi/4*t);
n=1-0.2*sin(pi/4*t);
set(g,'xdata',m,'ydata',n);
set(h,'xdata',[m+0.1;m+0.5],'ydata',[n;n]);
t=t+0.05;
drawnow;
end
t=0;
while t<0.5
t=t+0.5;
%绘制第四个箭头
g=line(8.1,0.8,'color','b','linestyle','-','markersize',10,'erasemode','xor');
g=line(8.1,0.8,'color','b','linestyle','--','markersize',10,'erasemode','xor');
set(g,'xdata',8.1,'ydata',0.8);
drawnow;
end
pause(0.5);
t=0;
while m>1.1 %箭头的运动范围
m=8.1-0.05*t;
n=0.8;
set(g,'xdata',m,'ydata',n);
set(h,'xdata',[m+0.1;m+0.5],'ydata',[n;n]);
t=t+0.04;
drawnow;
end
t=0;
while t<1 %停顿时间
m=1.2-0.2*sin(pi/4*t);
n=1+0.2*cos(pi/4*t);
set(g,'xdata',m,'ydata',n);
set(h,'xdata',[m;m+0.5],'ydata',[n-0.1;n-0.5]);
t=t+0.05;
drawnow;
end
t=0;
while t<0.5 %画第五个箭头
t=t+0.5;
g=line(1,1,'color','b','linestyle','--','markersize',10,'erasemode','xor');
g=line(1,1,'color','b','linestyle','-.','markersize',10,'erasemode','xor');
set(g,'xdata',1,'ydata',1)matlab画图函数之plotmatlab图行绘制一