function shili18 h0=figure('toolbar','none',... 'position',[200 150 450 250],... 'name','实例18'); subplot(2,2,1) x=-3:0.2:3; y=exp(-x.*x); bar(x,y) title('2-D Bar Chart')
subplot(2,2,2) x=-3:0.2:3; y=exp(-x.*x); bar3(x,y,'r') title('3-D Bar Chart')
subplot(2,2,3) x=-3:0.2:3; y=exp(-x.*x); stairs(x,y) title('Stair Chart')
subplot(2,2,4) x=-3:0.2:3; y=exp(-x.*x); barh(x,y) title('Horizontal Bar Chart') 实例19:三维曲线图
function shili19 h0=figure('toolbar','none',... 'position',[200 150 450 400],... 'name','实例19'); subplot(2,1,1) x=linspace(0,2*pi); y1=sin(x); y2=cos(x); y3=sin(x)+cos(x); z1=zeros(size(x)); z2=0.5*z1; z3=z1; plot3(x,y1,z1,x,y2,z2,x,y3,z3) grid on xlabel('X轴'); ylabel('Y轴'); zlabel('Z轴'); title('Figure1:3-D Plot')
subplot(2,1,2) x=linspace(0,2*pi); y1=sin(x); y2=cos(x); y3=sin(x)+cos(x); z1=zeros(size(x)); z2=0.5*z1; z3=z1; plot3(x,z1,y1,x,z2,y2,x,z3,y3) grid on xlabel('X轴'); ylabel('Y轴'); zlabel('Z轴'); title('Figure2:3-D Plot') 实例20:图形的隐藏属性
function shili20 h0=figure('toolbar','none',... 'position',[200 150 450 300],... 'name','实例20'); subplot(1,2,1) [x,y,z]=sphere(10); mesh(x,y,z) axis off title('Figure1:Opaque') hidden on
subplot(1,2,2) [x,y,z]=sphere(10); mesh(x,y,z) axis off title('Figure2:Transparent') hidden off 实例21PEAKS函数曲线
function shili21 h0=figure('toolbar','none',... 'position',[200 100 450 450],... 'name','实例21'); [x,y,z]=peaks(30); subplot(2,1,1) x=x(1,:); y=y(:,1); i=find(y>0.8&y<1.2); j=find(x>-0.6&x<0.5); z(i,j)=nan*z(i,j); surfc(x,y,z) xlabel('X轴'); ylabel('Y轴'); zlabel('Z轴'); title('Figure1:surfc函数形成的曲面')
subplot(2,1,2) x=x(1,:); y=y(:,1); i=find(y>0.8&y<1.2); j=find(x>-0.6&x<0.5); z(i,j)=nan*z(i,j); surfl(x,y,z) xlabel('X轴'); ylabel('Y轴'); zlabel('Z轴'); title('Figure2:surfl函数形成的曲面') 实例22:片状图
function shili22 h0=figure('toolbar','none',... 'position',[200 150 550 350],... 'name','实例22'); subplot(1,2,1) x=rand(1,20); y=rand(1,20); z=peaks(x,y*pi); t=delaunay(x,y); trimesh(t,x,y,z) hidden off title('Figure1:Triangular Surface Plot');
subplot(1,2,2) x=rand(1,20); y=rand(1,20); z=peaks(x,y*pi); t=delaunay(x,y); trisurf(t,x,y,z) title('Figure1:Triangular Surface Plot'); 实例23:视角的调整
function shili23 h0=figure('toolbar','none',... 'position',[200 150 450 350],... 'name','实例23'); x=-5:0.5:5; [x,y]=meshgrid(x); r=sqrt(x.^2+y.^2)+eps; z=sin(r)./r; subplot(2,2,1) surf(x,y,z) xlabel('X-axis') ylabel('Y-axis') zlabel('Z-axis') title('Figure1') view(-37.5,30)
subplot(2,2,2) surf(x,y,z) xlabel('X-axis') ylabel('Y-axis') zlabel('Z-axis') title('Figure2') view(-37.5+90,30)
subplot(2,2,3) surf(x,y,z) xlabel('X-axis') ylabel('Y-axis') zlabel('Z-axis') title('Figure3') view(-37.5,60)
subplot(2,2,4) surf(x,y,z) xlabel('X-axis') ylabel('Y-axis') zlabel('Z-axis') title('Figure4') view(180,0) 实例24:向量场的绘制
function shili24 h0=figure('toolbar','none',... 'position',[200 150 450 350],... 'name','实例24'); subplot(2,2,1) z=peaks; ribbon(z) title('Figure1')
subplot(2,2,2) [x,y,z]=peaks(15); [dx,dy]=gradient(z,0.5,0.5); contour(x,y,z,10) hold on quiver(x,y,dx,dy) hold off title('Figure2')
subplot(2,2,3) [x,y,z]=peaks(15); [nx,ny,nz]=surfnorm(x,y,z); surf(x,y,z) hold on quiver3(x,y,z,nx,ny,nz) hold off title('Figure3')
subplot(2,2,4) x=rand(3,5); y=rand(3,5); z=rand(3,5); c=rand(3,5); fill3(x,y,z,c) grid on title('Figure4') 实例25:灯光定位
function shili25 h0=figure('toolbar','none',... 'position',[200 150 450 250],... 'name','实例25'); vert=[1 1 1;1 2 1; 2 2 1;2 1 1; 1 1 2;1 2 2; 2 2 2;2 1 2]; fac=[1 2 3 4;2 6 7 3; 4 3 7 8;1 5 8 4; 1 2 6 5;5 6 7 8]; grid off sphere(36) h=findobj('type','surface'); set(h,'facelighting','phong',... 'facecolor',... 'interp',... 'edgecolor',[0.4 0.4 0.4],... 'backfacelighting',... 'lit') hold on patch('faces',fac,'vertices',vert,... 'facecolor','y'); light('position',[1 3 2]); light('position',[-3 -1 3]); material shiny axis vis3d off hold off 实例26:柱状图
function shili26 h0=figure('toolbar','none',... 'position',[200 50 450 450],... 'name','实例26'); subplot(2,1,1) x=[5 2 1 8 7 3 9 8 6 5 5 5 4 3 2]; bar(x) xlabel('X轴'); ylabel('Y轴'); title('第一子图');
subplot(2,1,2) y=[5 2 1 8 7 3 9 8 6 5 5 5 4 3 2]; barh(y) xlabel('X轴'); ylabel('Y轴'); title('第二子图'); 实例27:设置照明方式
function shili27 h0=figure('toolbar','none',... 'position',[200 150 450 350],... 'name','实例27'); subplot(2,2,1) sphere shading flat camlight left camlight right lighting flat colorbar axis off title('Figure1')
subplot(2,2,2) sphere shading flat camlight left camlight right lighting gouraud colorbar axis off title('Figure2')
subplot(2,2,3) sphere shading interp camlight right camlight left lighting phong colorbar axis off title('Figure3')
subplot(2,2,4) sphere shading flat camlight left camlight right lighting none colorbar axis off title('Figure4') 实例28:羽状图
function shili28 h0=figure('toolbar','none',... 'position',[200 150 450 350],... 'name','实例28'); subplot(2,1,1) alpha=90:-10:0; r=ones(size(alpha)); m=alpha*pi/180; n=r*10; [u,v]=pol2cart(m,n); feather(u,v) title('羽状图') axis([0 20 0 10])
subplot(2,1,2) t=0:0.5:10; x=0.05+i; y=exp(-x*t); feather(y) title('复数矩阵的羽状图') 实例29:立体透视(1)
function shili29 h0=figure('toolbar','none',... 'position',[200 150 450 250],... 'name','实例29'); [x,y,z]=meshgrid(-2:0.1:2,... -2:0.1:2,... -2:0.1:2); v=x.*exp(-x.^2-y.^2-z.^2); grid on for i=-2:0.5:2; h1=surf(linspace(-2,2,20),... linspace(-2,2,20),... zeros(20)+i); rotate(h1,[1 -1 1],30) dx=get(h1,'xdata'); dy=get(h1,'ydata'); dz=get(h1,'zdata'); delete(h1) slice(x,y,z,v,[-2 2],2,-2) hold on slice(x,y,z,v,dx,dy,dz) hold off axis tight view(-5,10) drawnow end 实例30:立体透视(2)
function shili30 h0=figure('toolbar','none',... 'position',[200 150 450 250],... 'name','实例30'); [x,y,z]=meshgrid(-2:0.1:2,... -2:0.1:2,... -2:0.1:2); v=x.*exp(-x.^2-y.^2-z.^2); [dx,dy,dz]=cylinder; slice(x,y,z,v,[-2 2],2,-2) for i=-2:0.2:2 h=surface(dx+i,dy,dz); rotate(h,[1 0 0],90) xp=get(h,'xdata'); yp=get(h,'ydata'); zp=get(h,'zdata'); delete(h) hold on hs=slice(x,y,z,v,xp,yp,zp); axis tight xlim([-3 3]) view(-10,35) drawnow delete(hs) hold off end 实例31:表面图形
function shili31 h0=figure('toolbar','none',... 'position',[200 150 550 250],... 'name','实例31'); subplot(1,2,1) x=rand(100,1)*16-8; y=rand(100,1)*16-8; r=sqrt(x.^2+y.^2)+eps; z=sin(r)./r; xlin=linspace(min(x),max(x),33); ylin=linspace(min(y),max(y),33); [X,Y]=meshgrid(xlin,ylin); Z=griddata(x,y,z,X,Y,'cubic'); mesh(X,Y,Z) axis tight hold on plot3(x,y,z,'.','Markersize',20)
subplot(1,2,2) k=5; n=2^k-1; theta=pi*(-n:2:n)/n; phi=(pi/2)*(-n:2:n)'/n; X=cos(phi)*cos(theta); Y=cos(phi)*sin(theta); Z=sin(phi)*ones(size(theta)); colormap([0 0 0;1 1 1]) C=hadamard(2^k); surf(X,Y,Z,C) axis square 实例32:沿曲线移动的小球
h0=figure('toolbar','none',... 'position',[198 56 408 468],... 'name','实例32'); h1=axes('parent',h0,... 'position',[0.15 0.45 0.7 0.5],... 'visible','on'); t=0:pi/24:4*pi; y=sin(t); plot(t,y,'b') n=length(t); h=line('color',[0 0.5 0.5],... 'linestyle','.',... 'markersize',25,... 'erasemode','xor'); k1=uicontrol('parent',h0,... 'style','pushbutton',... 'position',[80 100 50 30],... 'string','开始',... 'callback',[... 'i=1;',... 'k=1;,',... 'm=0;,',... 'while 1,',... 'if k==0,',... 'break,',... 'end,',... 'if k~=0,',... 'set(h,''xdata'',t(i),''ydata'',y(i)),',... 'drawnow;,',... 'i=i+1;,',... 'if i>n,',... 'm=m+1;,',... 'i=1;,',... 'end,',... 'end,',... 'end']); k2=uicontrol('parent',h0,... 'style','pushbutton',... 'position',[180 100 50 30],... 'string','停止',... 'callback',[... 'k=0;,',... 'set(e1,''string'',m),',... 'p=get(h,''xdata'');,',... 'q=get(h,''ydata'');,',... 'set(e2,''string'',p);,',... 'set(e3,''string'',q)']); k3=uicontrol('parent',h0,... 'style','pushbutton',... 'position',[280 100 50 30],... 'string','关闭',... 'callback','close'); e1=uicontrol('parent',h0,... 'style','edit',... 'position',[60 30 60 20]); t1=uicontrol('parent',h0,... 'style','text',... 'string','循环次数',... 'position',[60 50 60 20]); e2=uicontrol('parent',h0,... 'style','edit',... 'position',[180 30 50 20]); t2=uicontrol('parent',h0,... 'style','text',... 'string','终点的X坐标值',... 'position',[155 50 100 20]); e3=uicontrol('parent',h0,... 'style','edit',... 'position',[300 30 50 20]); t3=uicontrol('parent',h0,... 'style','text',... 'string','终点的Y坐标值',... 'position',[275 50 100 20]); 实例33:曲线转换按钮
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