520比心大法，用MATLAB绘制心形，用c++绘制心形

MATLAB:

1、clear all;

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



2、clear all;

clc;

theta=0:0.01*pi:2*pi;

a=2;

r=a*(1-sin(theta));

h0=polar(theta,r,'r');

set(h0,'LineWidth',6);



3、h0=ezplot('17*x^2-16*abs(x)*y+17*y^2-225');

set(h0,'color','r','LineWidth',6);



4、clear all;

clc;

[x,y]=meshgrid(-5:0.01:5,-5:0.01:5);

v=17*x.^2-16*abs(x).*y+17*y.^2+150./abs(5*x+sin(5*y))<225;

contourf(x,y,v);

colormap(jet);



5、clear all;

clc;

% 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));

    h3=plot3(hAxes,xData,cData(2,2:end),cData(1,2:end),'k');

     set(h3,'color','r');

    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));

    h4=plot3(hAxes,cData(2,2:end),yData,cData(1,2:end),'k');

     set(h4,'color','r');

    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));

        h0=plot3(hAxes,cData(1,2:(startIndex-1)),...

            cData(2,2:(startIndex-1)),zData,'k');

        set(h0,'color','r');

    end

    zData = iZ.*ones(1,cData(2,startIndex));

    h1=plot3(hAxes,cData(1,(startIndex+1):end),...

        cData(2,(startIndex+1):end),zData,'k');

    set(h1,'color','r');

    pause(.1), drawnow

end

pause(.2)

text(7,50,70,'I', 'color','r','fontWeight','bold','FontAngle','italic','fontsize',100)

pause(.5)

text(80,50,43,'YOU','color','r' ,'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<3', 'fontsize',8)



C++

1、#include <stdio.h>

void print_love()

{

    printf("      ******       ******\n");

    printf("    **********   **********\n");

    printf("  ************* *************\n");

    printf(" *****************************\n");

    printf(" *****************************\n");

    printf(" *****************************\n");

    printf("  ***************************\n");

    printf("    ***********************\n");

    printf("      *******************\n");

    printf("        ***************\n");

    printf("          ***********\n");

    printf("            *******\n");

    printf("              ***\n");

    printf("               *\n");

}

int main()

{

    print_love();

    return 0;}