function drawrose2
grid on
[x,t]=meshgrid((0:24)./24,(0:0.5:575)./575.*20.*pi-4*pi);
p=(pi/2)*exp(-t./(8*pi));
change=sin(20*t)/150;
u=1-(1-mod(3.3*t,2*pi)./pi).^4./2+change;
y=2*(x.^2-x).^2.*sin(p);
r=u.*(x.*sin(p)+y.*cos(p)).*1.5;
h=u.*(x.*cos(p)-y.*sin(p));
map=[0.9176 0.7490 0.3765
0.9188 0.7513 0.3879
0.9200 0.7537 0.3992
0.9211 0.7560 0.4106
0.9223 0.7584 0.4220
0.9235 0.7608 0.4334
0.9247 0.7631 0.4447
0.9259 0.7654 0.4561
0.9270 0.7678 0.4675
0.9282 0.7702 0.4788
0.9294 0.7725 0.4902
0.9298 0.7698 0.5008
0.9302 0.7670 0.5114
0.9306 0.7643 0.5220
0.9310 0.7615 0.5326
0.9314 0.7588 0.5432
0.9317 0.7561 0.5537
0.9321 0.7533 0.5643
0.9325 0.7506 0.5749
0.9329 0.7478 0.5855
0.9333 0.7451 0.5961
0.9290 0.7404 0.5894
0.9247 0.7357 0.5828
0.9204 0.7310 0.5761
0.9161 0.7263 0.5694
0.9118 0.7215 0.5627
0.9074 0.7168 0.5561
0.9031 0.7121 0.5494
0.8988 0.7074 0.5427
0.8945 0.7027 0.5361
0.8902 0.6980 0.5294
0.8890 0.6976 0.5388
0.8878 0.6972 0.5482
0.8867 0.6968 0.5576
0.8855 0.6964 0.5670
0.8843 0.6961 0.5765
0.8831 0.6957 0.5859
0.8819 0.6953 0.5953
0.8808 0.6949 0.6047
0.8796 0.6945 0.6141
0.8784 0.6941 0.6235
0.8827 0.6988 0.6364
0.8870 0.7035 0.6494
0.8914 0.7082 0.6623
0.8957 0.7129 0.6753
0.9000 0.7177 0.6882
0.9043 0.7224 0.7011
0.9086 0.7271 0.7141
0.9130 0.7318 0.7270
0.9173 0.7365 0.7400
0.9216 0.7412 0.7529
0.9153 0.7275 0.7545
0.9090 0.7137 0.7560
0.9028 0.7000 0.7576
0.8965 0.6863 0.7592
0.8902 0.6725 0.7608
0.8839 0.6588 0.7623
0.8776 0.6451 0.7639
0.8714 0.6314 0.7655
0.8651 0.6176 0.7670
0.8588 0.6039 0.7686
0.8580 0.5906 0.7557
0.8572 0.5772 0.7427
0.8565 0.5639 0.7298
0.8557 0.5506 0.7168
0.8549 0.5373 0.7039
0.8541 0.5239 0.6910
0.8533 0.5106 0.6780
0.8526 0.4973 0.6651
0.8518 0.4839 0.6521
0.8510 0.4706 0.6392
0.8420 0.4447 0.6110
0.8330 0.4188 0.5827
0.8239 0.3930 0.5545
0.8149 0.3671 0.5263
0.8059 0.3412 0.4980
0.7969 0.3153 0.4698
0.7879 0.2894 0.4416
0.7788 0.2636 0.4134
0.7698 0.2377 0.3851
0.7608 0.2118 0.3569];
set(gca,'CameraPosition',[2 2 2])
hold on
Xset=r.*cos(t);Yset=r.*sin(t);
sf=surface(Xset,Yset,h,'EdgeAlpha',0.1,...
'EdgeColor',[0.5 0.5 0.5],'FaceColor','interp');
colormap(map)
theta=0;
while 1
theta=theta+0.02;
set(sf,'XData',Xset.*cos(theta)-Yset.*sin(theta),...
'YData',Xset.*sin(theta)+Yset.*cos(theta))
pause(0.01)
end
end
