不能放图，大家自行绘制试试看。
1 程序说明
这个程序就是用一系列椭圆，圆角矩形及心形拼在起，以下说明一下各部分怎么生成：
椭圆形：
椭圆形是用的如下椭圆数据生成函数生成数据点，之后再用fill函数绘制而成，其中Mu为椭圆中心点，Sigma为协方差矩阵，S为半径平方，pntNum是生成数据点个数：
% 椭圆数据计算函数，输入协方差矩阵、中心点、半径生成椭圆数据
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% 椭圆数据计算函数，输入协方差矩阵、中心点、半径生成椭圆数据function [X,Y]=getEllipse(Mu,Sigma,S,pntNum) % (X-Mu)*inv(Sigma)*(X-Mu)=S invSig=inv(Sigma); [V,D]=eig(invSig); aa=sqrt(S/D(1)); bb=sqrt(S/D(4)); t=linspace(0,2*pi,pntNum); XY=V*[aa*cos(t);bb*sin(t)]; X=(XY(1,:)+Mu(1))'; Y=(XY(2,:)+Mu(2))';end |
圆角矩形：
使用MATLAB自带的圆角矩阵生成函数，详细信息可以去MATHWORKS官网查看：
rectangle(‘Position’,pos,‘Curvature’,cur)
心形：
使用如下心形函数：
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t=linspace(-2.9,2.9,1000);X=16.*(sin(t)).^3;Y=13.*cos(t)-5.*cos(2.*t)-2.*cos(3.*t)-cos(4.*t);fill(X,Y,[180,39,45]./255,'EdgeColor',[180,39,45]./255,'LineWidth',2) |
2 完整代码
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function bingdundunax=gca;ax.DataAspectRatio=[1 1 1];ax.XLim=[-5 5];ax.YLim=[-5 5];hold(ax,'on')% =========================================================================% 绘制冰糖外壳[X,Y]=getEllipse([0,0],[1,0;0,1.3],3.17^2,200);plot(X,Y,'Color',[57,57,57]./255,'LineWidth',1.8)%[X,Y]=getEllipse([1.7,2.6],[1.2,0;0,1.8],.65^2,200);plot(X,Y,'Color',[57,57,57]./255,'LineWidth',1.8)plot(-X,Y,'Color',[57,57,57]./255,'LineWidth',1.8)[X,Y]=getEllipse([1.7,2.6],[1.2,0;0,1.8],.6^2,200);fill(X,Y,[1,1,1],'EdgeColor',[1,1,1],'LineWidth',1.8)fill(-X,Y,[1,1,1],'EdgeColor',[1,1,1],'LineWidth',1.8)%[X,Y]=getEllipse([-3.5,-1],[1.1,.3;.3,1.1],.75^2,200);plot(X,Y,'Color',[57,57,57]./255,'LineWidth',1.8)[X,Y]=getEllipse([-3.5,-1],[1.1,.3;.3,1.1],.68^2,200);fill(X,Y,[1,1,1],'EdgeColor',[1,1,1],'LineWidth',1.8)[X,Y]=getEllipse([3.5,1],[1.1,.3;.3,1.1],.75^2,200);plot(X,Y,'Color',[57,57,57]./255,'LineWidth',1.8)[X,Y]=getEllipse([3.5,1],[1.1,.3;.3,1.1],.68^2,200);fill(X,Y,[1,1,1],'EdgeColor',[1,1,1],'LineWidth',1.8)%X=[-3.8,-2,-3];Y=[-.51+.13,1+.13,-1];plot(X,Y,'Color',[57,57,57]./255,'LineWidth',1.8)plot(-X,-Y,'Color',[57,57,57]./255,'LineWidth',1.8)X=[-3.8,-2,-3];Y=[-.51+.03,1+.03,-1];fill(X,Y,[1,1,1],'EdgeColor',[1,1,1],'LineWidth',1.8)fill(-X,-Y,[1,1,1],'EdgeColor',[1,1,1],'LineWidth',1.8)%[X,Y]=getEllipse([0,-.1],[1,0;0,1.6],.9^2,200);Y(Y<0)=Y(Y<0).*.2;Y=Y-4.2;X=X-1.2;plot(X,Y,'Color',[57,57,57]./255,'LineWidth',2)plot(-X,Y,'Color',[57,57,57]./255,'LineWidth',2)rectangle('Position',[-2.1 -4.2 1.7 3],'Curvature',0.4,... 'FaceColor',[1 1 1],'EdgeColor',[57,57,57]./255,'LineWidth',1.8)rectangle('Position',[2.1-1.7 -4.2 1.7 3],'Curvature',0.4,... 'FaceColor',[1 1 1],'EdgeColor',[57,57,57]./255,'LineWidth',1.8)[X,Y]=getEllipse([0,-.1],[1,0;0,1.6],.8^2,200);Y(Y<0)=Y(Y<0).*.2;Y=Y-4.1;X=X-1.2;fill(X,Y,[1,1,1],'EdgeColor',[1,1,1],'LineWidth',1.8)fill(-X,Y,[1,1,1],'EdgeColor',[1,1,1],'LineWidth',1.8)%[X,Y]=getEllipse([0,0],[1,0;0,1.3],3.1^2,200);fill(X,Y,[1,1,1],'EdgeColor',[1,1,1],'LineWidth',1.8)% =========================================================================% 耳朵[X,Y]=getEllipse([1.7,2.6],[1.2,0;0,1.8],.5^2,200);fill(X,Y,[57,57,57]./255,'EdgeColor',[57,57,57]./255,'LineWidth',2)fill(-X,Y,[57,57,57]./255,'EdgeColor',[57,57,57]./255,'LineWidth',2)% 胳膊[X,Y]=getEllipse([-3.5,-1],[1.1,.3;.3,1.1],.6^2,200);fill(X,Y,[57,57,57]./255,'EdgeColor',[57,57,57]./255,'LineWidth',2)[X,Y]=getEllipse([3.5,1],[1.1,.3;.3,1.1],.6^2,200);fill(X,Y,[57,57,57]./255,'EdgeColor',[57,57,57]./255,'LineWidth',2)X=[-3.8,-2,-3];Y=[-.51,1,-1];fill(X,Y,[57,57,57]./255,'EdgeColor',[57,57,57]./255)fill(-X,-Y,[57,57,57]./255,'EdgeColor',[57,57,57]./255)tt=linspace(-2.9,2.9,1000);X=16.*(sin(tt)).^3;Y=13.*cos(tt)-5.*cos(2.*tt)-2.*cos(3.*tt)-cos(4.*tt);X=X.*.018+3.6;Y=Y.*.018+1.1;fill(X,Y,[180,39,45]./255,'EdgeColor',[180,39,45]./255,'LineWidth',2)% 腿[X,Y]=getEllipse([0,-.1],[1,0;0,1.6],.7^2,200);Y(Y<0)=Y(Y<0).*.2;Y=Y-4.1;X=X-1.2;fill(X,Y,[57,57,57]./255,'EdgeColor',[57,57,57]./255,'LineWidth',2)fill(-X,Y,[57,57,57]./255,'EdgeColor',[57,57,57]./255,'LineWidth',2)rectangle('Position',[-1.95 -4.3 1.4 3],'Curvature',0.4,... 'FaceColor',[57,57,57]./255,'EdgeColor',[57,57,57]./255)rectangle('Position',[1.95-1.4 -4.3 1.4 3],'Curvature',0.4,... 'FaceColor',[57,57,57]./255,'EdgeColor',[57,57,57]./255)% 身体[X,Y]=getEllipse([0,0],[1,0;0,1.3],3^2,200);fill(X,Y,[1,1,1],'EdgeColor',[57,57,57]./255,'LineWidth',2.5)% 五环cList=[132,199,114;251,184,77;89,120,177;158,48,87;98,205,247];for i=1:5 [X,Y]=getEllipse([0,0],[1.6,0;0,1.3],(2.05-0.05.*i)^2,200); Y(Y<0)=Y(Y<0).*.8;Y=Y+.5; fill(X,Y,[1,1,1],'EdgeColor',cList(i,:)./255,'LineWidth',2.5)end% 眼睛[X,Y]=getEllipse([1.2,1.2],[1.2,-.5;-.5,1.1],.65^2,200);fill(X,Y,[57,57,57]./255,'EdgeColor',[57,57,57]./255,'LineWidth',2)fill(-X,Y,[57,57,57]./255,'EdgeColor',[57,57,57]./255,'LineWidth',2)[X,Y]=getEllipse([.95,1.3],[1,0;0,1],.35^2,200);fill(X,Y,[57,57,57]./255,'EdgeColor',[1,1,1],'LineWidth',1.6)fill(-X,Y,[57,57,57]./255,'EdgeColor',[1,1,1],'LineWidth',1.6)[X,Y]=getEllipse([.95,1.3],[1,0;0,1],.1^2,200);fill(X+.18,Y,[1,1,1],'EdgeColor',[57,57,57]./255,'LineWidth',.5)fill(-X+.18,Y,[1,1,1],'EdgeColor',[57,57,57]./255,'LineWidth',.5)% 嘴巴[X,Y]=getEllipse([0.05,.2],[1.2,.15;.15,.8],.69^2,200);fill(X,Y,[57,57,57]./255,'EdgeColor',[57,57,57]./255,'LineWidth',2)[X,Y]=getEllipse([0,.75],[1,0.2;0.2,.3],.4^2,200);fill(X,Y,[1,1,1],'EdgeColor',[1,1,1],'LineWidth',2)[X,Y]=getEllipse([0,0],[.8,0;0,.2],.6^2,200);fill(X,Y,[180,39,45]./255,'EdgeColor',[180,39,45]./255,'LineWidth',2)% 鼻子[X,Y]=getEllipse([0,-.1],[1,0;0,1.6],.2^2,200);Y(Y<0)=Y(Y<0).*.2;Y=-Y+.9;fill(X,Y,[57,57,57]./255,'EdgeColor',[57,57,57]./255,'LineWidth',2)% =========================================================================% 五环tt=linspace(0,2*pi,100);X=cos(tt).*.14;Y=sin(tt).*.14;plot(X,Y-2.8,'Color',[57,57,57]./255,'LineWidth',1.2)plot(X-.3,Y-2.8,'Color',[106,201,245]./255,'LineWidth',1.2)plot(X+.3,Y-2.8,'Color',[155,79,87]./255,'LineWidth',1.2)plot(X-.15,Y-2.9,'Color',[236,197,107]./255,'LineWidth',1.2)plot(X+.15,Y-2.9,'Color',[126,159,101]./255,'LineWidth',1.2)% 文本text(0,-2.4,'BEIJING 2022','HorizontalAlignment','center',... 'FontSize',8,'FontName','Comic Sans MS')% 标志fill([.1,-.12,-.08],[0,0-0.05,-0.15]-1.5,[98,118,163]./255,'EdgeColor',[98,118,163]./255)fill([-.08,-.35,.1],[-0.1,-.2,-.1]-1.6,[98,118,163]./255,'EdgeColor',[98,118,163]./255)fill([-.08,-.08,.1,.1],[-0.1,-0.15,-.2,-.15]-1.5,[192,15,45]./255,'EdgeColor',[192,15,45]./255)plot([-.35,-.3,-.25,-.2,-.15,-.1,-.05,.1]+.02,... [0,.02,.04,.06,.04,.02,0,.02]-1.82,'Color',[120,196,219]./255,'LineWidth',1.8)plot([-.33,.05]+.02,[0,-.08]-1.82,'Color',[190,215,84]./255,'LineWidth',1.8)plot([.05,-.2]+.02,[-.08,-.15]-1.82,'Color',[32,162,218]./255,'LineWidth',1.8)plot([-.2,.05]+.02,[-.15,-.2]-1.82,'Color',[99,118,151]./255,'LineWidth',1.8)% ========================================================================= % 椭圆数据计算函数，输入协方差矩阵、中心点、半径生成椭圆数据 function [X,Y]=getEllipse(Mu,Sigma,S,pntNum) % (X-Mu)*inv(Sigma)*(X-Mu)=S invSig=inv(Sigma); [V,D]=eig(invSig); aa=sqrt(S/D(1)); bb=sqrt(S/D(4)); t=linspace(0,2*pi,pntNum); XY=V*[aa*cos(t);bb*sin(t)]; X=(XY(1,:)+Mu(1))'; Y=(XY(2,:)+Mu(2))'; endend |
以上就是C语言编程使用MATLAB绘制椭圆及圆角矩形的详细内容，更多关于MATLAB绘制椭圆及圆角矩形的资料请关注服务器之家其它相关文章！
原文链接：https://blog.csdn.net/slandarer/article/details/122830608
