先赞后看，养成习惯~~
先赞后看，养成习惯~~
先赞后看，养成习惯~~
绘制效果
下面这款弦图我已经出了很久了，也陆陆续续增添了新的功能和修了一些bug：
甚至还用它做出了一些复刻，分成两组的弦图有了后就有很多人在催双向的弦图，今天附带超详细解说slandarer自行研发的双向弦图工具函数终于来啦~
详细教程
0 数据准备
数据应准备全是非负数值的方形矩阵，矩阵第i行第j列表示由类i流向类j，第j行第i列表示由类j流向类i,也就是说矩阵是非对称的，可以同时统计两个类互相的数据流动,这里构造个随机数矩阵：
dataMat=randi([0,8],[6,6]);
1 基础绘图
两行代码搞定~
dataMat=randi([0,8],[6,6]);
BCC=biChordChart(dataMat);
BCC=BCC.draw();
2 方向箭头
两侧都是弧形仅仅靠颜色不容易区分流入还是流出，因此可在创建对象时将Arrow属性设置为'on'：
dataMat=randi([0,8],[6,6]);
BCC=biChordChart(dataMat,'Arrow','on');
BCC=BCC.draw();
3 绘图间隙
通过Sep属性可调整绘图间隙，例如设置为特别小的1/120：
dataMat=randi([0,8],[6,6]);
BCC=biChordChart(dataMat,'Arrow','on','Sep',1/120);
BCC=BCC.draw();
4 添加刻度
通过tickState函数设置显示或者隐藏刻度：
dataMat=randi([0,8],[6,6]);
BCC=biChordChart(dataMat,'Arrow','on');
BCC=BCC.draw();
% 添加刻度
BCC.tickState('on')
5 修改标签
标签名字默认为C1,C2,C3,...可以通过Label属性进行修改例如：
dataMat=randi([0,8],[6,6]);
% 添加标签名称
NameList={'CHORD','CHART','MADE','BY','SLANDARER','MATLAB'};
BCC=biChordChart(dataMat,'Label',NameList,'Arrow','on');
BCC=BCC.draw();
6 旋转标签
懒得集成进函数里了，请使用以下这段稍显麻烦的代码：
dataMat=randi([0,8],[6,6]);
% 添加标签名称
NameList={'CHORD','CHART','MADE','BY','SLANDARER','MATLAB'};
BCC=biChordChart(dataMat,'Label',NameList,'Arrow','on');
BCC=BCC.draw();
% 以下代码用来旋转标签
% The following code is used to rotate the label
textHdl=findobj(gca,'Type','Text');
for i=1:length(textHdl)
if textHdl(i).Rotation<-90
textHdl(i).Rotation=textHdl(i).Rotation+180;
end
switch true
case textHdl(i).Rotation<0&&textHdl(i).Position(2)>0
textHdl(i).Rotation=textHdl(i).Rotation+90;
textHdl(i).HorizontalAlignment='left';
case textHdl(i).Rotation>0&&textHdl(i).Position(2)>0
textHdl(i).Rotation=textHdl(i).Rotation-90;
textHdl(i).HorizontalAlignment='right';
case textHdl(i).Rotation<0&&textHdl(i).Position(2)<0
textHdl(i).Rotation=textHdl(i).Rotation+90;
textHdl(i).HorizontalAlignment='right';
case textHdl(i).Rotation>0&&textHdl(i).Position(2)<0
textHdl(i).Rotation=textHdl(i).Rotation-90;
textHdl(i).HorizontalAlignment='left';
end
end
7 颜色的设置
可在draw绘图之前设置CData属性修改颜色，例如：
dataMat=randi([0,8],[6,6]);
ColorList=[127,91,93;153,66,83;95,127,95;9,14,10;78,70,83;0,0,0]./255;
BCC=biChordChart(dataMat,'Arrow','on','CData',ColorList);
BCC=BCC.draw();
dataMat=randi([0,8],[6,6]);
BCC=biChordChart(dataMat,'Arrow','on','CData',bone(9));
BCC=BCC.draw();
值得一提的是如果CData设置为空集，则会随机生成颜色：
dataMat=randi([0,8],[6,6]);
BCC=biChordChart(dataMat,'Arrow','on','CData',[]);
BCC=BCC.draw();
8 弧块及弦属性设置
通过
- BCC.setSquareN
- BCC.setChordN
设置第n个弧块或第n类弦的属性，Patch对象具有的属性均可被设置，比如如果没提前定义颜色，可以比较麻烦的修改颜色：
dataMat=randi([0,8],[6,6]);
BCC=biChordChart(dataMat,'Arrow','on');
BCC=BCC.draw();
ColorList=lines(6);
for i=1:6
BCC.setSquareN(i,'FaceColor',ColorList(i,:))
BCC.setChordN(i,'FaceColor',ColorList(i,:))
end
使用函数：
- setChordMN
函数可以单独修饰类m到类n的属性，例如找到比较大的弦并将边缘标记为红色：
dataMat=randi([0,8],[6,6]);
BCC=biChordChart(dataMat,'Arrow','on');
BCC=BCC.draw();
% 标记最大值弦
[m,n]=find(dataMat==max(max(dataMat)));
for i=1:length(m)
BCC.setChordMN(m(i),n(i),'EdgeColor',[.8,0,0],'LineWidth',2)
end
9 字体设置
通过:
- setFont
函数进行字体设置：
dataMat=randi([0,8],[6,6]);
BCC=biChordChart(dataMat,'Arrow','on');
BCC=BCC.draw();
% 修改字体，字号及颜色
BCC.setFont('FontName','Cambria','FontSize',30,'Color',[0,0,.8])
封面绘制
封面1
% @author : slandarer
% 公众号 : slandarer随笔
% 知乎 : slandarer
dataMat=randi([0,8],[6,6]);
BCC=biChordChart(dataMat,'Arrow','on');
BCC=BCC.draw();
% 添加刻度
BCC.tickState('on')
% 修改字体，字号及颜色
BCC.setFont('FontName','Cambria','FontSize',17)
封面2
% @author : slandarer
% 公众号 : slandarer随笔
% 知乎 : slandarer
dataMat=randi([0,8],[6,6]);
% 添加标签名称
NameList={'CHORD','CHART','MADE','BY','SLANDARER','MATLAB'};
BCC=biChordChart(dataMat,'Label',NameList,'Arrow','on','CData',bone(9));
BCC=BCC.draw();
% 添加刻度
BCC.tickState('on')
% 修改字体，字号及颜色
BCC.setFont('FontName','Cambria','FontSize',17,'Color',[0,0,.8])
非常短的代码就能绘制出效果不错的图！！
完整代码
classdef biChordChart
% @author : slandarer
% 公众号 : slandarer随笔
% 知乎 : slandarer
% =========================================================================
% Zhaoxu Liu / slandarer (2022). Digraph chord chart 有向弦图
% (https://www.mathworks.com/matlabcentral/fileexchange/121043-digraph-chord-chart),
% MATLAB Central File Exchange. 检索来源 2022/11/22.
properties
ax
arginList={'Label','Sep','Arrow','CData'}
verMatlab % MATLAB 版本: R2021a显示为2021,R2021b显示为2021.5
dataMat % 数值矩阵
Label={} % 标签文本
% -----------------------------------------------------------
squareHdl % 绘制方块的图形对象矩阵
nameHdl % 绘制下方文本的图形对象矩阵
chordMatHdl % 绘制弦的图形对象矩阵
thetaTickHdl % 刻度句柄
RTickHdl % 轴线句柄
thetaSet=[];
Sep;Arrow;CData
end
methods
function obj=biChordChart(varargin)
obj.Sep=1/10;
obj.Arrow='off';
obj.CData=[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;
if isa(varargin{1},'matlab.graphics.axis.Axes')
obj.ax=varargin{1};varargin(1)=[];
else
obj.ax=gca;
end
% 获取版本信息
tver=version('-release');
obj.verMatlab=str2double(tver(1:4))+(abs(tver(5))-abs('a'))/2;
if obj.verMatlab<2017
hold on
else
hold(obj.ax,'on')
end
obj.dataMat=varargin{1};varargin(1)=[];
% 获取其他数据
for i=1:2:(length(varargin)-1)
tid=ismember(obj.arginList,varargin{i});
if any(tid)
obj.(obj.arginList{tid})=varargin{i+1};
end
end
% 名称标签预设
if isempty(obj.Label)||length(obj.Label)<size(obj.dataMat,1)
for i=1:size(obj.dataMat,1)
obj.Label{i}=['C',num2str(i)];
end
end
% 调整不合理间隙
if obj.Sep>1/10
obj.Sep=1/10;
end
% 调整颜色数量
if size(obj.CData,1)<size(obj.dataMat,1)
obj.CData=[obj.CData;rand([size(obj.dataMat,1),3]).*.5+ones([size(obj.dataMat,1),3]).*.4];
end
% 调整对角线
for i=1:size(obj.dataMat,1)
obj.dataMat(i,i)=abs(obj.dataMat(i,i));
end
help biChordChart
end
function obj=draw(obj)
obj.ax.XLim=[-1.38,1.38];
obj.ax.YLim=[-1.38,1.38];
obj.ax.XTick=[];
obj.ax.YTick=[];
obj.ax.XColor='none';
obj.ax.YColor='none';
obj.ax.PlotBoxAspectRatio=[1,1,1];
% 计算比例
numC=size(obj.dataMat,1);
ratioC1=sum(abs(obj.dataMat),2)./sum(sum(abs(obj.dataMat)));
ratioC2=sum(abs(obj.dataMat),1)./sum(sum(abs(obj.dataMat)));
ratioC=(ratioC1'+ratioC2)./2;
ratioC=[0,ratioC];
sepLen=(2*pi*obj.Sep)./numC;
baseLen=2*pi*(1-obj.Sep);
% 绘制方块
for i=1:numC
theta1=sepLen/2+sum(ratioC(1:i))*baseLen+(i-1)*sepLen;
theta2=sepLen/2+sum(ratioC(1:i+1))*baseLen+(i-1)*sepLen;
theta=linspace(theta1,theta2,100);
X=cos(theta);Y=sin(theta);
obj.squareHdl(i)=fill([1.05.*X,1.15.*X(end:-1:1)],[1.05.*Y,1.15.*Y(end:-1:1)],...
obj.CData(i,:),'EdgeColor','none');
theta3=(theta1+theta2)/2;
rotation=theta3/pi*180;
if rotation>0&&rotation<180
obj.nameHdl(i)=text(cos(theta3).*1.28,sin(theta3).*1.28,obj.Label{i},'FontSize',14,'FontName','Arial',...
'HorizontalAlignment','center','Rotation',-(.5*pi-theta3)./pi.*180);
else
obj.nameHdl(i)=text(cos(theta3).*1.28,sin(theta3).*1.28,obj.Label{i},'FontSize',14,'FontName','Arial',...
'HorizontalAlignment','center','Rotation',-(1.5*pi-theta3)./pi.*180);
end
obj.RTickHdl(i)=plot(cos(theta).*1.17,sin(theta).*1.17,'Color',[0,0,0],'LineWidth',.8,'Visible','off');
end
for i=1:numC
for j=1:numC
theta_i_1=sepLen/2+sum(ratioC(1:i))*baseLen+(i-1)*sepLen;
theta_i_2=sepLen/2+sum(ratioC(1:i+1))*baseLen+(i-1)*sepLen;
theta_i_3=theta_i_1+(theta_i_2-theta_i_1).*sum(abs(obj.dataMat(:,i)))./(sum(abs(obj.dataMat(:,i)))+sum(abs(obj.dataMat(i,:))));
theta_j_1=sepLen/2+sum(ratioC(1:j))*baseLen+(j-1)*sepLen;
theta_j_2=sepLen/2+sum(ratioC(1:j+1))*baseLen+(j-1)*sepLen;
theta_j_3=theta_j_1+(theta_j_2-theta_j_1).*sum(abs(obj.dataMat(:,j)))./(sum(abs(obj.dataMat(:,j)))+sum(abs(obj.dataMat(j,:))));
ratio_i_1=obj.dataMat(i,:);ratio_i_1=[0,ratio_i_1./sum(ratio_i_1)];
ratio_j_2=obj.dataMat(:,j)';ratio_j_2=[0,ratio_j_2./sum(ratio_j_2)];
if true
theta1=theta_i_2+(theta_i_3-theta_i_2).*sum(ratio_i_1(1:j));
theta2=theta_i_2+(theta_i_3-theta_i_2).*sum(ratio_i_1(1:j+1));
theta3=theta_j_3+(theta_j_1-theta_j_3).*sum(ratio_j_2(1:i));
theta4=theta_j_3+(theta_j_1-theta_j_3).*sum(ratio_j_2(1:i+1));
tPnt1=[cos(theta1),sin(theta1)];
tPnt2=[cos(theta2),sin(theta2)];
tPnt3=[cos(theta3),sin(theta3)];
tPnt4=[cos(theta4),sin(theta4)];
obj.thetaSet=[obj.thetaSet;theta1;theta2;theta3;theta4];
if strcmp(obj.Arrow,'off')
% 计算贝塞尔曲线
tLine1=bezierCurve([tPnt1;0,0;tPnt4],200);
tLine2=bezierCurve([tPnt2;0,0;tPnt3],200);
tline3=[cos(linspace(theta2,theta1,100))',sin(linspace(theta2,theta1,100))'];
tline4=[cos(linspace(theta4,theta3,100))',sin(linspace(theta4,theta3,100))'];
else
% 计算贝塞尔曲线
tLine1=bezierCurve([tPnt1;0,0;tPnt4.*.96],200);
tLine2=bezierCurve([tPnt2;0,0;tPnt3.*.96],200);
tline3=[cos(linspace(theta2,theta1,100))',sin(linspace(theta2,theta1,100))'];
tline4=[cos(theta4).*.96,sin(theta4).*.96;
cos(theta3/2+theta4/2).*.99,sin(theta3/2+theta4/2).*.99;
cos(theta3).*.96,sin(theta3).*.96];
end
obj.chordMatHdl(i,j)=fill([tLine1(:,1);tline4(:,1);tLine2(end:-1:1,1);tline3(:,1)],...
[tLine1(:,2);tline4(:,2);tLine2(end:-1:1,2);tline3(:,2)],...
obj.CData(i,:),'FaceAlpha',.3,'EdgeColor','none');
else
end
end
end
% 绘制刻度线
tickX=[cos(obj.thetaSet).*1.17,cos(obj.thetaSet).*1.19,nan.*obj.thetaSet].';
tickY=[sin(obj.thetaSet).*1.17,sin(obj.thetaSet).*1.19,nan.*obj.thetaSet].';
obj.thetaTickHdl=plot(tickX(:),tickY(:),'Color',[0,0,0],'LineWidth',.8,'Visible','off');
% 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
% -----------------------------------------------------------------
% 方块属性设置
function setSquareN(obj,n,varargin)
set(obj.squareHdl(n),varargin{:});
end
% -----------------------------------------------------------------
% 批量弦属性设置
function setChordN(obj,n,varargin)
for i=n
for j=1:size(obj.dataMat,2)
set(obj.chordMatHdl(i,j),varargin{:});
end
end
end
% -----------------------------------------------------------------
% 单独弦属性设置
function setChordMN(obj,m,n,varargin)
set(obj.chordMatHdl(m,n),varargin{:});
end
% -----------------------------------------------------------------
% 字体设置
function setFont(obj,varargin)
for i=1:size(obj.dataMat,1)
set(obj.nameHdl(i),varargin{:});
end
end
% -----------------------------------------------------------------
% 刻度开关
function tickState(obj,state)
for i=1:size(obj.dataMat,1)
set(obj.RTickHdl(i),'Visible',state);
end
set(obj.thetaTickHdl,'Visible',state);
end
end
% -------------------------------------------------------------------------
% @author : slandarer
% 公众号 : slandarer随笔
% 知乎 : slandarer
% =========================================================================
% Zhaoxu Liu / slandarer (2022). Digraph chord chart 有向弦图
% (https://www.mathworks.com/matlabcentral/fileexchange/121043-digraph-chord-chart),
% MATLAB Central File Exchange. 检索来源 2022/11/22.
end
完
这种圈圈的图的绘制代码写起来真的费脑子，希望大家该点赞的点赞，该在看的在看！！
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 / slandarer (2022). Digraph chord chart 有向弦图 (https://www.mathworks.com/matlabcentral/fileexchange/121043-digraph-chord-chart), MATLAB Central File Exchange. 检索来源 2022/11/22.
若转载请保留以上file exchange链接及本文链接！！！！!
完整代码:
链接：https://pan.baidu.com/s/1y7DoWjTjkxvPl4ste-nv1w?pwd=slan
提取码：slan