How to plot this graph?

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VALARMATHY K
VALARMATHY K on 26 Oct 2017
Commented: VALARMATHY K on 26 Oct 2017
This is my code i am getting output, but i want to simply this because if i have to change the plotting interval i have to change the code please.... any one help me to plot this graph............
</matlabcentral/answers/uploaded_files/92325/output.png> clc; I=1;
x1= [-30 30];
y1=[30 30];
plot(x1,y1,'Linewidth',3);
hold on;
x2=[-30 30];
y2=[-30 -30];
plot(x2,y2,'Linewidth',3);
hold on;
x3=[30 30];
y3=[-30 30];
plot(x3,y3,'Linewidth',3);
hold on;
x4=[-30 -30];
y4=[-30 30];
plot(x4,y4,'Linewidth',3);
hold on;
xlim([-40, 40]);
ylim([-40, 40]);
pause(1);
if(I==1);
x1=-30;
y1=30;
pause(1);
p0=plot(x1,y1,'r*','linewidth',8);
I=I+1;
end
if(I==2);
x=-25;
y=30;
hold on;
pause(1);
p1=plot(x,y,'r*','linewidth',8);
set(p0,'Visible','off');
I=I+1;
end
if(I==3);
x1=-20;
y1=30;
pause(1);
p2=plot(x1,y1,'r*','linewidth',8);
set(p1,'Visible','off');
I=I+1;
end
if(I==4);
x1=-15;
y1=30;
pause(1);
p3=plot(x1,y1,'r*','linewidth',8);
set(p2,'Visible','off');
I=I+1;
end
if(I==5);
x1=-10;
y1=30;
pause(1);
p4=plot(x1,y1,'r*','linewidth',8);
set(p3,'Visible','off');
I=I+1;
end
if(I==6);
x1=-5;
y1=30;
pause(1);
p5=plot(x1,y1,'r*','linewidth',8);
set(p4,'Visible','off');
I=I+1;
end
if(I==7);
x1=0;
y1=30;
pause(1);
p6=plot(x1,y1,'r*','linewidth',8);
set(p5,'Visible','off');
I=I+1;
end
if(I==8);
x1=5;
y1=30;
pause(1);
p7=plot(x1,y1,'r*','linewidth',8);
set(p6,'Visible','off');
I=I+1;
end
if(I==9);
x1=10;
y1=30;
pause(1);
p8=plot(x1,y1,'r*','linewidth',8);
set(p7,'Visible','off');
I=I+1;
end
if(I==10);
x1=15;
y1=30;
pause(1);
p9=plot(x1,y1,'r*','linewidth',8);
set(p8,'Visible','off');
I=I+1;
end
if(I==11);
x1=20;
y1=30;
pause(1);
p10=plot(x1,y1,'r*','linewidth',8);
set(p9,'Visible','off')
I=I+1;
end
if(I==12);
x1=25;
y1=30;
pause(1);
p11=plot(x1,y1,'r*','linewidth',8);
set(p10,'Visible','off');
I=I+1;
end
if(I==13);
x1=30;
y1=30;
pause(1);
p12=plot(x1,y1,'r*','linewidth',8);
set(p11,'Visible','off');
I=I+1;
end
if (I==14);
x1=30;
y1=30;
p13=plot(x1,y1,'r*','linewidth',8);
set(p12,'Visible','off');
I=I+1;
end
if(I==15);
x=30;
y=25;
hold on;
pause(1);
p14=plot(x,y,'r*','linewidth',8);
set(p13,'Visible','off');
I=I+1;
end
if(I==16);
x1=30;
y1=20;
pause(1);
p15=plot(x1,y1,'r*','linewidth',8);
set(p14,'Visible','off');
I=I+1;
end
if(I==17);
x1=30;
y1=15;
pause(1);
p16=plot(x1,y1,'r*','linewidth',8);
set(p15,'Visible','off');
I=I+1;
end
if(I==18);
x1=30;
y1=10;
pause(1);
p17=plot(x1,y1,'r*','linewidth',8);
set(p16,'Visible','off');
I=I+1;
end
if(I==19);
x1=30;
y1=5;
pause(1);
p18=plot(x1,y1,'r*','linewidth',8);
set(p17,'Visible','off');
I=I+1;
end
if(I==20);
x1=30;
y1=0;
pause(1);
p19=plot(x1,y1,'r*','linewidth',8);
set(p18,'Visible','off');
I=I+1;
end
if(I==21);
x1=30;
y1=-5;
pause(1);
p20=plot(x1,y1,'r*','linewidth',8);
set(p19,'Visible','off')
I=I+1;
end
if(I==22);
x1=30;
y1=-10;
pause(1);
p21=plot(x1,y1,'r*','linewidth',8);
set(p20,'Visible','off');
I=I+1;
end
if(I==23);
x1=30;
y1=-15;
pause(1);
p22=plot(x1,y1,'r*','linewidth',8);
set(p21,'Visible','off');
I=I+1;
end
if(I==24);
x1=30;
y1=-20;
pause(1);
p23=plot(x1,y1,'r*','linewidth',8);
set(p22,'Visible','off')
I=I+1;
end
if(I==25);
x1=30;
y1=-25;
pause(1);
p24=plot(x1,y1,'r*','linewidth',8);
set(p23,'Visible','off');
I=I+1;
end
if(I==26);
x1=30;
y1=-30;
pause(1);
p25=plot(x1,y1,'r*','linewidth',8);
set(p24,'Visible','off');
I=I+1;
end
if (I==27);
x1=30;
y1=-30;
p261=plot(x1,y1,'r*','linewidth',8);
set(p25,'Visible','off');
I=I+1;
end
if (I==28);
x1=25;
y1=-30;
pause(1);
p26=plot(x1,y1,'r*','linewidth',8);
set(p261,'Visible','off');
I=I+1;
end
if(I==29);
x=20;
y=-30;
hold on;
pause(1);
p27=plot(x,y,'r*','linewidth',8);
set(p26,'Visible','off');
I=I+1;
end
if(I==30);
x1=15;
y1=-30;
pause(1);
p28=plot(x1,y1,'r*','linewidth',8);
set(p27,'Visible','off');
I=I+1;
end
if(I==31);
x1=10;
y1=-30;
pause(1);
p29=plot(x1,y1,'r*','linewidth',8);
set(p28,'Visible','off');
I=I+1;
end
if(I==32);
x1=5;
y1=-30;
pause(1);
p30=plot(x1,y1,'r*','linewidth',8);
set(p29,'Visible','off');
I=I+1;
end
if(I==33);
x1=0;
y1=-30;
pause(1);
p31=plot(x1,y1,'r*','linewidth',8);
set(p30,'Visible','off');
I=I+1;
end
if(I==34);
x1=-5;
y1=-30;
pause(1);
p32=plot(x1,y1,'r*','linewidth',8);
set(p31,'Visible','off');
I=I+1;
end
if(I==35);
x1=-10;
y1=-30;
pause(1);
p33=plot(x1,y1,'r*','linewidth',7);
set(p32,'Visible','off')
I=I+1;
end
if(I==36);
x1=-15;
y1=-30;
pause(1);
p34=plot(x1,y1,'r*','linewidth',8);
set(p33,'Visible','off');
I=I+1;
end
if(I==37);
x1=-20;
y1=-30;
pause(1);
p35=plot(x1,y1,'r*','linewidth',8);
set(p34,'Visible','off');
I=I+1;
end
if(I==38);
x1=-25;
y1=-30;
pause(1);
p36=plot(x1,y1,'r*','linewidth',8);
set(p35,'Visible','off')
I=I+1;
end
if(I==39);
x1=-30;
y1=-30;
pause(1);
p37=plot(x1,y1,'r*','linewidth',8);
set(p36,'Visible','off');
I=I+1;
end
if(I==40);
x1=-30;
y1=-30;
p38=plot(x1,y1,'r*','linewidth',8);
set(p37,'Visible','off');
I=I+1;
end
if (I==41);
x1=-30;
y1=-25;
pause(1);
p39=plot(x1,y1,'r*','linewidth',8);
set(p38,'Visible','off');
I=I+1;
end
if(I==42);
x=-30;
y=-20;
hold on;
pause(1);
p40=plot(x,y,'r*','linewidth',8);
set(p39,'Visible','off');
I=I+1;
end
if(I==43);
x1=-30;
y1=-15;
pause(1);
p41=plot(x1,y1,'r*','linewidth',8);
set(p40,'Visible','off');
I=I+1;
end
if(I==44);
x1=-30;
y1=-10;
pause(1);
p42=plot(x1,y1,'r*','linewidth',8);
set(p41,'Visible','off');
I=I+1;
end
if(I==45);
x1=-30;
y1=-5;
pause(1);
p43=plot(x1,y1,'r*','linewidth',8);
set(p42,'Visible','off');
I=I+1;
end
if(I==46);
x1=-30;
y1=0;
pause(1);
p44=plot(x1,y1,'r*','linewidth',8);
set(p43,'Visible','off');
I=I+1;
end
if(I==47);
x1=-30;
y1=5;
pause(1);
p45=plot(x1,y1,'r*','linewidth',8);
set(p44,'Visible','off');
I=I+1;
end
if(I==48);
x1=-30;
y1=10;
pause(1);
p46=plot(x1,y1,'r*','linewidth',8);
set(p45,'Visible','off');
I=I+1;
end
if(I==49);
x1=-30;
y1=15;
pause(1);
p47=plot(x1,y1,'r*','linewidth',8);
set(p46,'Visible','off');
I=I+1;
end
if(I==50);
x1=-30;
y1=20;
pause(1);
p48=plot(x1,y1,'r*','linewidth',8);
set(p47,'Visible','off');
I=I+1;
end
if(I==51);
x1=-30;
y1=25;
pause(1);
p49=plot(x1,y1,'r*','linewidth',8);
set(p48,'Visible','off');
I=I+1;
end
if(I==52);
x1=-30;
y1=30;
pause(1);
p50=plot(x1,y1,'r*','linewidth',8);
set(p49,'Visible','off');
I=I+1;
end

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Accepted Answer

Michael Madelaire
Michael Madelaire on 26 Oct 2017
Hi, hope this is what you wanted. It is still rough, but you can always make it better :)
I = 1;
x1= [-30 30];
y1=[30 30];
plot(x1,y1,'Linewidth',3);
hold on;
x2=[-30 30];
y2=[-30 -30];
plot(x2,y2,'Linewidth',3);
x3=[30 30];
y3=[-30 30];
plot(x3,y3,'Linewidth',3);
x4=[-30 -30];
y4=[-30 30];
plot(x4,y4,'Linewidth',3);
xlim([-40, 40]);
ylim([-40, 40]);
pause(1);
x = -30; y = 30;
p = plot(x, y, 'r*', 'LineWidth', 8);
for I = 1:48;
if I < 13
dx = 5; dy = 0;
elseif I < 25
dx = 0; dy = -5;
elseif I < 37
dx = -5; dy = 0;
else
dx = 0; dy = 5;
end
x = x + dx;
y = y + dy;
pause(1);
p1 = plot(x, y, 'r*', 'LineWidth', 8);
set(p, 'Visible', 'off');
p = p1;
end

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