绘制效果
请叫我平平无奇的绘图天才，这期一次性带来俩工具函数，分别是两层和三层的环形树状图，可以用来展示数据分类和层级：
理顺层级关系属实理得头秃，代码编写不易点个赞叭!!
由于工具函数过长，将被放在最后展示，以下将先展示函数用法。
双层环形树状图
基本使用
处理的数据对象是两列的元胞数组，数组内容物为字符串，像下面这样：
treeList={'竞赛','数学竞赛';'竞赛','英语竞赛';'竞赛','美赛';'竞赛','数模国赛';'竞赛','网络挑战赛';'竞赛','英语翻译'; '编程','python';'编程','MATLAB';'编程','C#';'编程','C++';'编程','C';'编程','java';'编程','js';'编程','R';'编程','html'; '编程','php';'编程','rust';'编程','julia';'编程','perl';'编程','carbon';'编程','lisp'; '技能','office';'技能','LaTeX';'技能','PS';'技能','PR';'技能','excel';'技能','视频剪辑';'技能','bat'; '基础知识','代数集合';'基础知识','傅里叶';'基础知识','抽代';'基础知识','数分';'基础知识','高代';'基础知识','解几'; '基础知识','实变';'基础知识','复变';'基础知识','运筹学';'基础知识','泛函';'基础知识','张量分解';'基础知识','概率论'; '开发工具','eclipse';'开发工具','git';'开发工具','svn';'开发工具','gitee';'开发工具','jupyter';'开发工具','macos'; '开发工具','postman';'开发工具','vscode';'开发工具','mdnice';'开发工具','pycharm';'开发工具','vim';'开发工具','svn'; '爱好','国画';'爱好','乒乓球';'爱好','折纸';'爱好','雕刻';'爱好','篮球';'爱好','足球' '爱好','唱';'爱好','跳';'爱好','rap';'爱好','背带裤制作';'爱好','理发'};CT=circleTree2(treeList);CT=CT.draw();
好，画完结束了，当然线更多会比较好看，这里自己构造一些ABCD类再画个图：
treeList={[],[]};k=1;classNameSet={'A','B','C','D','E','F'};classNumSet=[20,20,20,25,30,35];for i=1:6 for j=1:classNumSet(i) treeList{k,1}=['CLASS ',classNameSet{i}]; treeList{k,2}=[classNameSet{i},num2str(j)]; k=k+1; endendCT=circleTree2(treeList);CT=CT.draw();
修改配色
使用setColorN设置各个类的颜色，比如将第2个类设为红色：
CT.setColorN(2,[.8,0,0]);
循环全部设置为灰色：
for i=1:6 CT.setColorN(i,[.8,.8,.8]);end
修改字体
使用setLable1和setLable1修改两层文本字体，例如：
CT.setLable1('FontSize',16,'Color',[0,0,.8]);CT.setLable2('FontSize',13,'Color',[0,.6,.8]);
三层环形树状图
基本使用
与上面双层环形树状图绘制方式一模一样，三层的不太好构造，这里直接从excel读取数据绘制，数据为往年诺贝尔奖获得者及其奖项、国籍
读取数据并绘制三层环形树状图：
treeList=readcell('data.xlsx');treeList=treeList(:,1:3);CT=circleTree3(treeList);CT=CT.draw();
其他属性设置方式与之前的双层绘制函数完全相同，由于怕文字互相遮挡，故只展示占比大于5%的类,想要隐藏或显示全部类，可以设置文本的Visible属性为on/off：
CT.setLable2('Visible','on');
虽然有点乱，但是可以缩放查看细节：
完整代码
大量代码，前方高能！！
双层
classdef circleTree2% @author : slandarer% gzh : slandarer随笔 properties ax,treeList ClassLine,ChildLine ClassScatter,MeanScatter LabelHdl0,LabelHdl1 end methods function obj=circleTree2(treeList) obj.ax=gca;hold on; obj.treeList=treeList; end function obj=draw(obj) % 坐标区域属性设置 ============================================== obj.ax=gca;hold on obj.ax.XLim=[-1,1]; obj.ax.YLim=[-1,1]; obj.ax.XTick=[]; obj.ax.YTick=[]; obj.ax.XColor='none'; obj.ax.YColor='none'; obj.ax.PlotBoxAspectRatio=[1,1,1]; fig=obj.ax.Parent; if max(fig.Position(3:4))<600 fig.Position(3:4)=1.8.*fig.Position(3:4); fig.Position(1:2)=fig.Position(1:2)./3; end % ax.LooseInset=[0,0,0,0]; % 理顺层级 ===================================================== classNameList=unique(obj.treeList(:,1)); childrenList{length(classNameList)}=[]; classSize(length(classNameList))=0; for i=1:length(classNameList) childrenList{i}=find(strcmp(classNameList{i},obj.treeList(:,1))); classSize(i)=length(childrenList{i}); end % 开始绘图 ===================================================== sepTheta=2/30/length(classSize); cumTheta=[0,28/30*cumsum(classSize)./sum(classSize)]; colorList=[127,91,93;187,128,110;197,173,143;59,71,111;104,95,126;76,103,86;112,112,124; 72,39,24;197,119,106;160,126,88;238,208,146]./255; colorList=[colorList;rand(length(classSize),3)]; colorList=colorList(4:end,:); for i=1:length(classSize) thetaList=linspace(sepTheta*i+cumTheta(i),sepTheta*i+cumTheta(i+1),classSize(i)).*2.*pi; bX1=[];bY1=[]; for j=1:classSize(i) oX1=[cos(thetaList(j)),cos(thetaList(j)).*0.9,cos(mean(thetaList)).*0.7,cos(mean(thetaList)).*0.45]; oY1=[sin(thetaList(j)),sin(thetaList(j)).*0.9,sin(mean(thetaList)).*0.7,sin(mean(thetaList)).*0.45]; bXY1=bezierCurve([oX1',oY1'],200); bX1=[bX1;bXY1(:,1);nan]; bY1=[bY1;bXY1(:,2);nan]; nameList1=obj.treeList(:,2); nameList1=nameList1(childrenList{i}); rotation=thetaList(j)/pi*180; if rotation>90&&rotation<270 rotation=rotation+180; obj.LabelHdl1(i,j)=text(cos(thetaList(j)).*1.03,sin(thetaList(j)).*1.03,nameList1{j},'Rotation',rotation,'HorizontalAlignment','right'); else obj.LabelHdl1(i,j)=text(cos(thetaList(j)).*1.03,sin(thetaList(j)).*1.03,nameList1{j},'Rotation',rotation); end end meanTheta=mean(thetaList); obj.ChildLine(i)=plot(bX1,bY1,'Color',[colorList(i,:),.4],'LineWidth',1.5); oX0=[cos(meanTheta).*0.46,cos(meanTheta).*0.44,0.05,0]; oY0=[sin(meanTheta).*0.46,sin(meanTheta).*0.44,-0.15,0]; bXY0=bezierCurve([oX0',oY0'],200); obj.ClassLine(i)=plot(bXY0(:,1),bXY0(:,2),'Color',[colorList(i,:),.8],'LineWidth',1.5); obj.ClassScatter(i)=scatter(cos(meanTheta).*0.45,sin(meanTheta).*0.45,'filled',... 'CData',colorList(i,:),'MarkerEdgeColor',[.4,.4,.4],'SizeData',60); rotation=meanTheta/pi*180; if rotation>90&&rotation<270 rotation=rotation+180; obj.LabelHdl0(i)=text(cos(meanTheta).*0.48,sin(meanTheta).*0.48,classNameList{i},... 'Rotation',rotation,'HorizontalAlignment','right','FontSize',12,'VerticalAlignment','cap'); else obj.LabelHdl0(i)=text(cos(meanTheta).*0.48,sin(meanTheta).*0.48,classNameList{i},... 'Rotation',rotation,'FontSize',12,'VerticalAlignment','cap'); end end obj.MeanScatter=scatter(0,0,'filled','CData',mean(colorList(1:length(classSize),:)),'MarkerEdgeColor',[.4,.4,.4],'SizeData',60); disp(char([64 97 117 116 104 111 114 32 58 32 115 108 97 110 100 97 114 101 114])) % 贝塞尔函数 =================================================== function pnts=bezierCurve(pnts,N) t=linspace(0,1,N); p=size(pnts,1)-1; coe1=factorial(p)./factorial(0:p)./factorial(p:-1:0); coe2=((t).^((0:p)')).*((1-t).^((p:-1:0)')); pnts=(pnts'*(coe1'.*coe2))'; end end % 修改颜色函数 function obj=setColorN(obj,n,color) set(obj.ClassLine(n),'Color',[color,.8]); set(obj.ChildLine(n),'Color',[color,.4]); set(obj.ClassScatter(n),'MarkerFaceColor',color); set(obj.ClassScatter(n),'CData',color); tColorList=zeros(length(obj.ClassScatter),3); for i=1:length(obj.ClassScatter) tColorList(i,:)=get(obj.ClassScatter(i),'CData'); end set(obj.MeanScatter,'MarkerFaceColor',mean(tColorList)); set(obj.MeanScatter,'CData',mean(tColorList)); end % 修改第一层文字属性 function obj=setLable1(obj,varargin) for i=1:length(obj.LabelHdl0) set(obj.LabelHdl0(i),varargin{:}); end end % 修改第二层文字属性 function obj=setLable2(obj,varargin) for i=1:size(obj.LabelHdl1,1) for j=1:size(obj.LabelHdl1,2) if obj.LabelHdl1(i,j)~=0 set(obj.LabelHdl1(i,j),varargin{:}); end end end end end% Zhaoxu Liu (2022). Circular dendrogram 环形树状图 % (https://www.mathworks.com/matlabcentral/fileexchange/118325-circular-dendrogram), % MATLAB Central File Exchange. 检索来源 2022/9/29.end三层
classdef circleTree3% @author : slandarer% gzh : slandarer随笔 properties ax,treeList ClassLine,ChildLine1,ChildLine2 MeanScatter,ClassScatter1,ClassScatter2 LabelHdl0,LabelHdl1,LabelHdl2 end methods function obj = circleTree3(treeList) obj.ax=gca;hold on; obj.treeList=treeList; end function obj=draw(obj) % 坐标区域属性设置 ============================================== obj.ax=gca;hold on obj.ax.XLim=[-1,1]; obj.ax.YLim=[-1,1]; obj.ax.XTick=[]; obj.ax.YTick=[]; obj.ax.XColor='none'; obj.ax.YColor='none'; obj.ax.PlotBoxAspectRatio=[1,1,1]; fig=obj.ax.Parent; if max(fig.Position(3:4))<600 fig.Position(3:4)=1.8.*fig.Position(3:4); fig.Position(1:2)=fig.Position(1:2)./3; end % ax.LooseInset=[0,0,0,0]; % 理顺层级 ===================================================== classNameList=unique(obj.treeList(:,1)); childNameList1{length(classNameList)}={[]}; childrenList2{length(classNameList)}={[]}; for i=1:length(classNameList) tList=obj.treeList(:,2); tList=tList(strcmp(classNameList{i},obj.treeList(:,1))); childNameList1{i}=unique(tList); end for i=1:length(classNameList) for j=1:length(childNameList1{i}) tchildNameList=childNameList1{i}; tbool1=strcmp(classNameList{i},obj.treeList(:,1)); tbool2=strcmp(tchildNameList{j},obj.treeList(:,2)); childrenList2{i,j}=find(tbool1&tbool2); classSize(i,j)=length(childrenList2{i,j}); end end cumSize=classSize'; colSize=cumSize(cumSize~=0)'; cumSize=cumsum(colSize); % 开始绘图 ===================================================== sepTheta=2/30/length(cumSize); cumTheta=[0,28/30.*cumSize./cumSize(end)]; colorList=[127,91,93;187,128,110;197,173,143;59,71,111;104,95,126;76,103,86;112,112,124; 72,39,24;197,119,106;160,126,88;238,208,146]./255; colorList=[colorList;rand(length(classSize),3)]; colorList=colorList(4:end,:); n=1; for i=1:length(classNameList) meanThetaList=[]; for j=1:length(childNameList1{i}) thetaList=linspace(sepTheta*n+cumTheta(n),sepTheta*n+cumTheta(n+1),classSize(i,j)).*2.*pi; bX2=[];bY2=[]; for k=1:classSize(i,j) oX2=[cos(thetaList(k)),cos(thetaList(k)).*0.95,cos(mean(thetaList)).*0.9,cos(mean(thetaList)).*0.7]; oY2=[sin(thetaList(k)),sin(thetaList(k)).*0.95,sin(mean(thetaList)).*0.9,sin(mean(thetaList)).*0.7]; bXY2=bezierCurve([oX2',oY2'],200); bX2=[bX2;bXY2(:,1);nan]; bY2=[bY2;bXY2(:,2);nan]; end obj.ChildLine2(i,j)=plot(bX2,bY2,'Color',[colorList(i,:),.4],'LineWidth',1.1); meanThetaList=[meanThetaList,mean(thetaList)]; tchildNameList=childNameList1{i}; rotation=mean(thetaList)/pi*180; if rotation>90&&rotation<270 rotation=rotation+180; obj.LabelHdl1(n)=text(cos(mean(thetaList)).*0.7,sin(mean(thetaList)).*0.7,tchildNameList{j},... 'Rotation',rotation,'HorizontalAlignment','right','FontSize',11,'VerticalAlignment','bottom'); else obj.LabelHdl1(n)=text(cos(mean(thetaList)).*0.7,sin(mean(thetaList)).*0.7,tchildNameList{j},... 'Rotation',rotation,'FontSize',11,'VerticalAlignment','cap'); end if classSize(i,j)<sum(classSize(i,:))/20 set(obj.LabelHdl1(n),'Visible','off'); end n=n+1; end obj.ClassScatter2(i)=scatter(cos(meanThetaList).*0.7,sin(meanThetaList).*0.7,'filled',... 'CData',colorList(i,:),'MarkerEdgeColor',[.4,.4,.4],'SizeData',20); bX1=[];bY1=[]; for m=1:length(meanThetaList) oX1=[cos(meanThetaList(m)).*0.7,cos(meanThetaList(m)).*0.65,cos(mean(meanThetaList)).*0.5,cos(mean(meanThetaList)).*0.35]; oY1=[sin(meanThetaList(m)).*0.7,sin(meanThetaList(m)).*0.65,sin(mean(meanThetaList)).*0.5,sin(mean(meanThetaList)).*0.35]; bXY1=bezierCurve([oX1',oY1'],200); bX1=[bX1;bXY1(:,1);nan]; bY1=[bY1;bXY1(:,2);nan]; end obj.ChildLine1(i)=plot(bX1,bY1,'Color',[colorList(i,:),.5],'LineWidth',1.2); meanTheta=mean(meanThetaList); oX0=[cos(meanTheta).*0.35,cos(meanTheta).*0.32,0.05,0]; oY0=[sin(meanTheta).*0.35,sin(meanTheta).*0.32,-0.15,0]; bXY0=bezierCurve([oX0',oY0'],200); obj.ClassLine(i)=plot(bXY0(:,1),bXY0(:,2),'Color',[colorList(i,:),.7],'LineWidth',1.4); obj.ClassScatter1(i)=scatter(cos(meanTheta).*0.35,sin(meanTheta).*0.35,'filled',... 'CData',colorList(i,:),'MarkerEdgeColor',[.4,.4,.4],'SizeData',40); rotation=meanTheta/pi*180; if rotation>90&&rotation<270 rotation=rotation+180; obj.LabelHdl0(i)=text(cos(meanTheta).*0.35,sin(meanTheta).*0.35,classNameList{i},... 'Rotation',rotation,'HorizontalAlignment','right','FontSize',12,'VerticalAlignment','bottom'); else obj.LabelHdl0(i)=text(cos(meanTheta).*0.35,sin(meanTheta).*0.35,classNameList{i},... 'Rotation',rotation,'FontSize',12,'VerticalAlignment','cap'); end end obj.MeanScatter=scatter(0,0,'filled','CData',mean(colorList(1:length(classNameList),:)),'MarkerEdgeColor',[.4,.4,.4],'SizeData',60); disp(char([64 97 117 116 104 111 114 32 58 32 115 108 97 110 100 97 114 101 114])) % 贝塞尔函数 =================================================== function pnts=bezierCurve(pnts,N) t=linspace(0,1,N); p=size(pnts,1)-1; coe1=factorial(p)./factorial(0:p)./factorial(p:-1:0); coe2=((t).^((0:p)')).*((1-t).^((p:-1:0)')); pnts=(pnts'*(coe1'.*coe2))'; end end % 修改颜色函数 function obj=setColorN(obj,n,color) set(obj.ClassLine(n),'Color',[color,.8]); set(obj.ChildLine1(n),'Color',[color,.4]); for i=1:length(obj.ChildLine2(n,:)) if obj.ChildLine2(n,i)~=0 set(obj.ChildLine2(n,i),'Color',[color,.4]); end end set(obj.ClassScatter1(n),'MarkerFaceColor',color); set(obj.ClassScatter2(n),'CData',color); tColorList=zeros(length(obj.ClassScatter1),3); for i=1:length(obj.ClassScatter1) tColorList(i,:)=get(obj.ClassScatter1(i),'CData'); end set(obj.MeanScatter,'MarkerFaceColor',mean(tColorList)); set(obj.MeanScatter,'CData',mean(tColorList)); end % 修改第一层文字属性 function obj=setLable1(obj,varargin) for i=1:length(obj.LabelHdl0) set(obj.LabelHdl0(i),varargin{:}); end end % 修改第二层文字属性 function obj=setLable2(obj,varargin) for i=1:size(obj.LabelHdl1,1) for j=1:size(obj.LabelHdl1,2) if obj.LabelHdl1(i,j)~=0 set(obj.LabelHdl1(i,j),varargin{:}); end end end end end% Zhaoxu Liu (2022). Circular dendrogram 环形树状图 % (https://www.mathworks.com/matlabcentral/fileexchange/118325-circular-dendrogram), % MATLAB Central File Exchange. 检索来源 2022/9/29.endMATLAB树状图绘制能画成这样属实不易，如果有用请留个赞叭~
未经允许本代码请勿作商业用途，引用的话可以引用我file exchange上的链接，可使用如下格式：
Zhaoxu Liu (2022). Circular dendrogram 环形树状图 (https://www.mathworks.com/matlabcentral/fileexchange/118325-circular-dendrogram), MATLAB Central File Exchange. 检索来源 2022/9/29.
若转载请保留以上file exchange链接及本文链接！！！
全部m文件及数据获取:
链接：https://pan.baidu.com/s/12iTl6P82PsMUhdZc4tEQJg?pwd=slan
提取码：slan