此贴为整理贴 感谢网上各位matlab大神。
%O(∩_∩)O哈！我很厉害吧
clear
d=300
r1=16
r2=8
f=0.45
x=1:1:d
q1=f*2*pi+r1*pi/d.*x
q2=r2*pi/d.*x
z=ones(1,2*d)
for i=1:1:d
z(1,2*i)=q1(1,i)
z(1,2*i+1)=q2(1,i)
end
z2=ones(1,2*d)
for i=1:1:d
z2(1,2*i)=q1(1,i)
z2(1,2*i+1)=q2(1,i)
end
k=ones(1,2*d+1).*1
k2=ones(1,2*d+1).*0.9
z=z+r1*pi/d
t=-1:0.01:2.0
y1=0.2*t+0.02*sin(200*t)-0.15
y2=0.2*t+0.02*cos(200*t-0.1)-0.15
t2=2:0.01:2.4
y3=0.2*t2+(-1/2.4.*t2+1)*1.2.*cos(300.*t2-0.1)-0.15
y4=0.2*t2+(-1/2.4.*t2+1)*1.2.*sin(300.*t2)-0.15
whitebg('r')
e1=-1:0.1:1.2
e2=-1:0.1:1.2
g=1.2-e2
for i=1:1:23
z1(1,2*i)=e1(1,i)
z1(1,2*i+1)=-1
s1(1,2*i+1)=g(1,i)
s1(1,2*i)=-1
end
plot(-sin(z).*k,cos(z).*k+0.15,'k',sin(z2).*k2+1.1,cos(z2).*k2+0.35,'k',t,y1,'k',t,y2,'k',t2,y3,'k',t2,y4,'k',z1,-0.4*s1+1.1,'k',-z1+1.5,0.4*s1-0.6,'k',-z1+1.5,-0.4*s1+1.1,'k',z1,0.4*s1-0.6,'k')
代码2：
% Initialize the volume data, figure, and axes:
[X,Y,Z] = meshgrid(linspace(-3,3,101));
F = -X.^2.*Z.^3-(9/80).*Y.^2.*Z.^3+(X.^2+(9/4).*Y.^2+Z.^2-1).^3;
hFigure = figure;
sz = get(hFigure, 'Position');
set(hFigure, 'Position', [sz(1)-0.15*sz(3) sz(2) 1.3*sz(3) sz(4)]);
set(hFigure,'color','w', 'menu','none')
hAxes = axes('Parent',hFigure,'NextPlot','add',...
'DataAspectRatio',[1 1 1],...
'XLim',[30 120],'YLim',[35 65],'ZLim',[30 75]);
view([-39 30]);
axis off
% hidden surface removal
hidden on
% Fill the inside of the mesh with an isosurface to
% block rendering of the back side of the heart
p = patch(isosurface(F,-0.001));
set(p,'FaceColor','w','EdgeColor','none');
% Create and plot contours in the y-z plane:
for iX = [35 38 41 45 48 51 54 57 61 64 67]
plane = reshape(F(:,iX,:),101,101);
cData = contourc(plane,[0 0]);
xData = iX.*ones(1,cData(2,1));
plot3(hAxes,xData,cData(2,2:end),cData(1,2:end),'k');
pause(.1), drawnow
end
% Create and plot contours in the x-z plane:
for iY = [41 44 47 51 55 58 61]
plane = reshape(F(iY,:,:),101,101);
cData = contourc(plane,[0 0]);
yData = iY.*ones(1,cData(2,1));
plot3(hAxes,cData(2,2:end),yData,cData(1,2:end),'k');
pause(.1), drawnow
end
% Create and plot contours in the x-y plane:
for iZ = [36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 69 71]
plane = F(:,:,iZ);
cData = contourc(plane,[0 0]);
startIndex = 1;
if size(cData,2) > (cData(2,1)+1)
startIndex = cData(2,1)+2;
zData = iZ.*ones(1,cData(2,1));
plot3(hAxes,cData(1,2:(startIndex-1)),...
cData(2,2:(startIndex-1)),zData,'k');
end
zData = iZ.*ones(1,cData(2,startIndex));
plot3(hAxes,cData(1,(startIndex+1):end),...
cData(2,(startIndex+1):end),zData,'k');
pause(.1), drawnow
end
pause(.2)
text(7,50,70,'I', 'fontWeight','bold','FontAngle','italic','fontsize',100)
pause(.5)
text(80,50,43,'Math', 'fontWeight','bold','FontAngle','italic','fontsize',100)
pause(.2)
line([20 80],[50 50],[52.5 52.5], 'color','k')
line([50 50],[20 80],[52.5 52.5], 'color','k')
line([50 50],[50 50],[30 80], 'color','k')
text(20,50,50,'x')
text(48,20,50,'y')
text(45,50,80,'z')
text(30,60,30,'(x^2+9/4y^2+z^2-1)^3 - x^2z^3-9/80y^2z^3=0', 'fontsize',8)
text(35,45,30,'-3<x,y,z<3', 'fontsize',8)
代码3：
clear clc [x,y,z]=meshgrid(linspace(-1.3,1.3)); val=(x.^2 + (9/4)*y.^2 + z.^2 - 1).^3 - x.^2.*z.^3 - (9/80)*y.^2.*z.^3; isosurface(x,y,z,val,0) axis equal view(-10,24) colormap flag camlight lighting phong