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[求助]求助用plotyy语句合成下面的例图
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请教各位大侠,一般我们用matlab的plotyy语句把下面图合成一个图,具体要求如下: 它们X轴相同,范围0.6:0.0001:7 左边Y轴代表牵引力,单位是N 右边Y轴代表的是总效率,0-1 两个分程序如下: x=0.6:0.0001:7; G=235000; k=222186.2; f=0.1; fkp=(0.999*k*G+0.1094*f*k*G)./(0.1094*k+G*x)-G*f; plot(x,fkp,'-b*') hold on title('行走系统牵引力理论特性曲线') xlabel('潜孔钻机行走速度(km/h)') ylabel('牵引力(N)') grid on v=0.6:0.0001:7; delta_p=[8000000 15000000 25000000 35000000]; Cs=0.8e-9; Csm=2.0e-9; u=0.051; n=2200; Cv=0.2e+6; Cvm=0.6e+6; Cf=0.01; Cfm=0.015; Tc=5; Vmax=45e-6; nc=0.9; rd=0.3223; for i=1:1:length(delta_p) for j=1:1:length(v) npv(i,j)=1-(1.07882*Cs)*(60*delta_p(i))/((u*n)*v(j)); npt(i,j)=1/(1+(Cv*(u*n)/(60*delta_p(i)+Cf+(2*3.141592*Tc)/(delta_p(i)*Vmax))*(1.07882/v(j)))); np(i,j)=npv(i,j)*npt(i,j); nmv(i,j)=1/(1+(Csm*delta_p(i))/(u*(v(j)/(0.377*rd*0.95)))); nmt(i,j)=1-Cfm-(Cvm*(u*(v(j)/(0.377*rd*0.95))/delta_p(i))); nm(i,j)=nmv(i,j)*nmt(i,j); n1(i,j)=np(i,j)*nm(i,j)*nc; end end figure(1) plot(v,n1(1, ,'-b')hold on plot(v,n1(2, ,':r')plot(v,n1(3, ,'-.b')plot(v,n1(4, ,'--k')title('泵—马达系统的理论效率分析') xlabel('潜孔钻机行走速度(km/h)') ylabel('总效率') legend('8MPa','15MPa','25MPa','35MPa') grid on hold off 如何用plotyy语句把它们连起来,得出例题样子的图形 [ Last edited by xwz118 on 2009-3-31 at 22:03 ] |
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kuhailangyu(金币+1,VIP+0):xiexie 3-30 21:01
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help plotyy PLOTYY Graphs with y tick labels on the left and right. PLOTYY(X1,Y1,X2,Y2) plots Y1 versus X1 with y-axis labeling on the left and plots Y2 versus X2 with y-axis labeling on the right. PLOTYY(X1,Y1,X2,Y2,FUN) uses the plotting function specified by the string FUN instead of PLOT to produce each plot. FUN should be a plotting function like 'plot','semilogx','semilogy', 'loglog','stem', etc. that accepts the syntax H = FUN(X,Y). PLOTYY(X1,Y1,X2,Y2,FUN1,FUN2) uses FUN1(X1,Y1) to plot the data for the left axes and FUN2(X1,Y1) to plot the data for the right axes. [AX,H1,H2] = PLOTYY(...) returns the handles of the two axes created in AX and the handles of the graphics objects from each plot in H1 and H2. AX(1) is the left axes and AX(2) is the right axes. See also PLOT. |

4楼2009-03-30 18:58:43
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