MATLAB | MATLAB版玫瑰祝伟大女性节日快乐！！

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妇女节到了，这里祝全体伟大的女性，节日快乐，事业有成，万事胜意。

作为MATLAB爱好者，这里还是老传统画朵花叭，不过感觉大部分样式的花都画过了，这里将一段很古老的2012年的html玫瑰花代码转成MATLAB版本

html版本代码出自：

http://www.romancortes.com/blog/1k-rose/

网站有代码详细原理，可以去瞅一眼：

完整代码

MATLAB代码也不是很长：

function htmlRose
f = 500;
h = -250;
ax                 = gca;
ax.NextPlot        = 'add';
ax.DataAspectRatio = [1,1,1];
ax.YDir            = 'reverse';
ax.XColor          = 'none';
ax.YColor          = 'none';
function V = calc(a, b, c)
if c > 60 V.x = sin(a.*7).*(13+5./(.2+power(b.*4, 4)))-sin(b).*50;V.y = b.*f+50;V.z = 625+cos(a.*7).*(13+5./(.2+power(b.*4, 4)))+b.*400;V.r = a-b./2;V.g = a;
elseA = a.*2-1;B = b.*2-1;ind = A.*A+B.*B<1;a = a(ind); b = b(ind);A = A(ind); B = B(ind);if c > 37j = double(bitand(int32(c),1));n = double(j.*6+~j.*4);o = .5./(a+.01)+cos(b.*125).*3-a.*300;w = b.*h;V.x = o.*cos(n)+w.*sin(n)+j.*610-390;V.y = o.*sin(n)-w.*cos(n)+550-j.*350;V.z = 1180+cos(B+A).*99-j.*300;V.r = .4-a.*.1+power(1-B.*B, -h.*6).*.15-a.*b.*.4+cos(a+b)./5+...power(cos((o.*(a+1)+(B>0).*w-(B<=0).*w)./25), 30).*.1.*(1-B.*B);V.g = o./1e3+.7-o.*w.*3e-6;elseif c > 32c = c.*1.16-.15;o = a.*45-20;w = b.*b.*h;V.z = o.*sin(c)+w.*cos(c)+620;V.x = o.*cos(c)-w.*sin(c);V.y = 28+cos(B.*.5).*99-b.*b.*b.*60-V.z./2-h;V.r = (b.*b.*.3+power((1-(A.*A)), 7).*.15+.3).*b;V.g = b.*.7;elseo = A.*(2-b).*(80-c.*2);w = 99-cos(A).*120-cos(b).*(-h-c.*4.9)+cos(power(1-b, 7)).*50+c.*2;V.z = o.*sin(c)+w.*cos(c)+700;V.x = o.*cos(c)-w.*sin(c);V.y = B.*99-cos(power(b, 7)).*50-c./3-V.z./1.35+450;V.r = (1-b./1.2).*.9+a.*.1;V.g = power((1-b), 20)./4+.05;end
end
end
zBuffer = zeros(f,f);
for k = 1:25for i = 0:45V = calc(rand(1, 5e3), rand(1, 5e3), i./.74);z = round(V.z + 0.5);x = int32(V.x.*f./z-h + 0.5);y = int32(V.y.*f./z-h + 0.5);ind2 = y<f;x = x(ind2); y = y(ind2); z = z(ind2);V.r = V.r(ind2); V.g = V.g(ind2);zBufferIndex = y.*f+x;zBufferBool = (~zBuffer(zBufferIndex))|zBuffer(zBufferIndex)>z;zBuffer(zBufferIndex(zBufferBool)) = z(zBufferBool);RGB = [bitcmp(int32(V.r.*h));bitcmp(int32(V.g.*h));bitcmp(int32(-V.r.*V.r.*80))].';RGB(RGB<0) = 0;RGB(RGB>255) = 255;RGB = double(RGB)./255;scatter(x(zBufferBool),y(zBufferBool),5,'filled',...'CData',RGB(zBufferBool,:),'MarkerEdgeColor','none',...'MarkerFaceAlpha',.7)enddrawnow
end
end