C語言編程使用MATLAB繪制橢圓及圓角矩形
不能放圖,大家自行繪制試試看。
1 程序說明
這個(gè)程序就是用一系列橢圓,圓角矩形及心形拼在起,以下說明一下各部分怎么生成:
橢圓形:
橢圓形是用的如下橢圓數(shù)據(jù)生成函數(shù)生成數(shù)據(jù)點(diǎn),之后再用fill函數(shù)繪制而成,其中Mu為橢圓中心點(diǎn),Sigma為協(xié)方差矩陣,S為半徑平方,pntNum是生成數(shù)據(jù)點(diǎn)個(gè)數(shù):
% 橢圓數(shù)據(jù)計(jì)算函數(shù),輸入?yún)f(xié)方差矩陣、中心點(diǎn)、半徑生成橢圓數(shù)據(jù)
% 橢圓數(shù)據(jù)計(jì)算函數(shù),輸入?yún)f(xié)方差矩陣、中心點(diǎn)、半徑生成橢圓數(shù)據(jù) 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
圓角矩形:
使用MATLAB自帶的圓角矩陣生成函數(shù),詳細(xì)信息可以去MATHWORKS官網(wǎng)查看:
rectangle(‘Position’,pos,‘Curvature’,cur)
心形:
使用如下心形函數(shù):
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 完整代碼
function bingdundun ax=gca; ax.DataAspectRatio=[1 1 1]; ax.XLim=[-5 5]; ax.YLim=[-5 5]; hold(ax,'on') % ========================================================================= % 繪制冰糖外殼 [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) % 身體 [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) % 五環(huán) 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) % ========================================================================= % 五環(huán) 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') % 標(biāo)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) % ========================================================================= % 橢圓數(shù)據(jù)計(jì)算函數(shù),輸入?yún)f(xié)方差矩陣、中心點(diǎn)、半徑生成橢圓數(shù)據(jù) 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 end
以上就是C語言編程使用MATLAB繪制橢圓及圓角矩形的詳細(xì)內(nèi)容,更多關(guān)于MATLAB繪制冰墩墩的資料請關(guān)注腳本之家其它相關(guān)文章!
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