MATLAB畫三維圖

1、.MATLAB畫三維函數(shù)圖下面將這幾天所做的圖像及程序小記一下（望大蝦指教）一、螺旋線1.靜態(tài)螺旋線a=0:0.1:20*pi;h=plot3(a.*cos(a),a.*sin(a),2.*a,b,linewidth,2);axis(-50,50,-50,50,0,150);grid onset(h,erasemode,none,markersize,22);xlabel(x軸);ylabel(y軸);zlabel(z軸);title(靜態(tài)螺旋線);2.動(dòng)態(tài)螺旋線t=0:0.1:10*pi;i=1;h=plot3(sin(t(i),cos(t(i),t(i),*,erasemode,none)

2、;grid onaxis(-2 2 -2 2 0 35)for i=2:length(t) set(h,xdata,sin(t(i),ydata,cos(t(i),zdata,t(i); drawnow pause(0.01)endtitle(動(dòng)態(tài)螺旋線);(圖略)3.圓柱螺旋線t=0:0.1:10*pi;x=r.*cos(t);y=r.*sin(t);z=t;plot3(x,y,z,h,linewidth,2);grid onaxis(square)xlabel(x軸);ylabel(y軸);zlabel(z軸);title(圓柱螺旋線)二、旋轉(zhuǎn)拋物面b=0:0.2:2*pi;X,Y=mes

3、hgrid(-6:0.1:6);Z=(X.2+Y.2)./4;meshc(X,Y,Z);axis(square)xlabel(x軸);ylabel(y軸);zlabel(z軸);title(旋轉(zhuǎn)拋物面)或直接用：ezsurfc(X.2+Y.2)./4)三、橢圓柱面load clownezsurf(2*cos(u),4*sin(u),v,0,2*pi,0,2*pi)view(-105,40) %視角處理shading interp%燈光處理colormap(map) %顏色處理grid on %添加網(wǎng)格線axis equal %使x,y軸比例一致xlabel(x軸);ylabel(y軸);zla

4、bel(z軸); %添加坐標(biāo)軸說(shuō)明title(橢圓柱面) %添加標(biāo)題四、橢圓拋物面b=0:0.2:2*pi;X,Y=meshgrid(-6:0.1:6);Z=X.2./9+Y.2./4;meshc(X,Y,Z);axis(square)xlabel(x軸);ylabel(y軸);zlabel(z軸);title(橢圓拋物面)或直接用：ezsurfc(X.2./9+Y.2./4)五、雙葉雙曲面ezsurf(8*tan(u)*cos(v),8.*tan(u)*sin(v),2.*sec(u),-pi./2,3*pi./2,0,2*pi)axis equalgrid onaxis squarexla

5、bel(x軸);ylabel(y軸);zlabel(z軸);title(雙葉雙曲面)六、雙曲柱面load clownezsurf(2*sec(u),2*tan(u),v,-pi/2,pi/2,-3*pi,3*pi)hold on %在原來(lái)的圖上繼續(xù)作圖ezsurf(2*sec(u),2*tan(u),v,pi/2,3*pi/2,-3*pi,3*pi)colormap(map)shading interpview(-15,30)axis equalgrid onaxis equalxlabel(x軸);ylabel(y軸);zlabel(z軸);title(雙曲柱面)七、雙曲拋物面（馬鞍面）X,

6、Y=meshgrid(-7:0.1:7);Z=X.2./8-Y.2./6;meshc(X,Y,Z);view(85,20)axis(square)xlabel(x軸);ylabel(y軸);zlabel(z軸);title(雙曲拋物面)或直接用：ezsurfc(X.2./8-Y.2./6)八、拋物柱面X,Y=meshgrid(-7:0.1:7);Z=Y.2./8;h=mesh(Z);rotate(h,1 0 1,180) %旋轉(zhuǎn)處理%axis(-8,8,-8,8,-2,6);axis(square)xlabel(x軸);ylabel(y軸);zlabel(z軸);title(拋物柱面)或直接用

7、：ezsurfc(Y.2./8)九、環(huán)面ezmesh(5+2*cos(u)*cos(v),(5+2*cos(u)*sin(v),2*sin(u),0,2*pi,0,2*pi)axis equalgrid onxlabel(x軸);ylabel(y軸);zlabel(z軸);title(環(huán)面)十、橢球ezsurfc(5*cos(u)*sin(v),(3*sin(u)*sin(v),4*cos(v),0,2*pi,0,2*pi)axis equalgrid onxlabel(x軸);ylabel(y軸);zlabel(z軸);title(橢球)十一、單葉雙曲面ezsurf(4*sec(u)*cos

8、(v),2.*sec(u)*sin(v),3.*tan(u),-pi./2,pi./2,0,2*pi)axis equalgrid onxlabel(x軸);ylabel(y軸);zlabel(z軸);title(單葉雙曲面)十二、旋轉(zhuǎn)單葉雙曲面load clownezsurf(8*sec(u)*cos(v),8.*sec(u)*sin(v),2.*tan(u),-pi./2,pi./2,0,2*pi)colormap(map)view(-175,30)%alpha(.2) %透明處理axis equalgrid onaxis squarexlabel(x軸);ylabel(y軸);zlabe

9、l(z軸);title(旋轉(zhuǎn)單葉雙曲面)十三、圓柱面subplot(1,2,1)ezsurf(2*cos(u),2*sin(u),v,0,2*pi,0,2*pi)grid onshading interpaxis equalxlabel(x軸);ylabel(y軸);zlabel(z軸);title(圓柱面)subplot(1,2,2)cylinder(30)shading interpaxis squaretitle(調(diào)用cylinder函數(shù)所得圓柱面)下面給出用colormap()改變圖像顏色的例子:(用了燈光效果shading interp)colormap(); %hot/cool/copper/gray/hsv/spring/