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  • Shanshan

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  • Solar system, meteor and UFO

on 18 Nov 2023
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drawframe(1);
Write your drawframe function below
function drawframe(f)
tiledlayout(1,1,'Padding','none')
nexttile
% stars
ax1 = axes('Position',[0 0 1 1]);
x1=0:0.01:1;
x2=0:0.02:1;
rng(1)
y1=rand(1,101);
y2=rand(1,51);
if mod(f,2)==0
c1='w';
c2='w';
else
c2=[.09 .09 .71];
c1='w';
end
plot(ax1,x1,y1,'p','MarkerEdgeColor',c1,'MarkerFaceColor',c1,'markersize',4)
hold on
plot(ax1,x2,y2,'p','MarkerEdgeColor',c2,'MarkerFaceColor',c2,'markersize',3)
ax1.Color=[.09 .09 .71];
% meteor
for i=1:f
a=rand(1);
b=rand(1);
plot(ax1,[a+0.05-f/48 a-f/48],[b+0.05-f/48 b-f/48],'w-','linewidth',1)
end
% UFO
plot(ax1,0+f/48,0.1,'<','color','r','markerfacecolor','r','markersize',8)
plot(ax1,0.02+f/48,0.1,'s','color','r','markerfacecolor','r','markersize',11)
plot(ax1,0.04+f/48,0.1,'>','color','r','markerfacecolor','r','markersize',8)
text(ax1,0+f/48,0.1,'UFO','fontsize',4,'color','w')
xlim([0 1])
ylim([0 1])
% basics
name={'\bf Mercury', '\bf Venus', '\bf Earth', '\bf Mars', '\bf Jupiter', '\bf Saturn', '\bf Uranus', '\bf Neptune'};
ax2 = axes('Position',[0 0 1 1]);
% sun
[X1,Y1,Z1] = sphere(50);
X2 = X1 * 4.5;
Y2 = Y1 * 4.5;
Z2 = Z1 * 4.5;
s=surf(ax2,X2,Y2,Z2);
s.EdgeColor='none';
hold on
% planets
r=[1 1 1.3 1.2 2.5 1.8 1.5 1.5];
for i=1:8
[x,y,z] = cylinder(3+3*i,50);
plot3(x(1,:),y(1,:),z(1,:),'c-');
hold on
[X1,Y1,Z1] = sphere(50);
X2=X1 * r(i)+(3+3*i)*cos(f*pi/24+5*i);
Y2=Y1 * r(i)+(3+3*i)*sin(f*pi/24+5*i);
Z2 = Z1 * r(i);
s=surf(ax2,X2,Y2,Z2);
s.EdgeColor='none';
colormap('jet');
text(ax2,X2(26,1),Y2(26,1),Z2(26,1)+3,name{i},'color','w','fontsize',6)
end
view(45,45)
axis equal
ax2.Visible='off';
axis([-28 28 -28 28 -5 5])
end
Animation
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