matlab繪製論文插圖——雙座標圖

• %畫出雙座標圖並對屬性進行處理
  len=numel(ut);
  Xs=0;
  Xl=len;%設置X軸的範圍
  Ys=3;
  Yl=4.3;%設置Y軸的範圍
  Y2s=-1; 
  Y2l=2;%設置第二個Y軸的範圍
  h_ap=axes('Position',[0.1,0.1,0.8,0.8]);%控制圖片佔比
  set(h_ap,'Xcolor','k','Ycolor','k','Xlim',[Xs,Xl],'Ylim',[Ys,Yl]);
  nx=5;%x軸的刻度間隔5等分
  ny=5; 
  pxtick=(Xs:((Xl-Xs)/nx):Xl);
  pytick=Ys:((Yl-Ys)/ny):Yl; 
  set(h_ap,'Xtick',pxtick,'Ytick',pytick,'Xgrid','off','Ygrid','off')
  %set(h_ap,'Xticklabel',{'0','6000','12000','18000','24000','30000'}); %設置刻度的顯示內容
  h_linet=line(1:len,ut,'Color','b'); 
  set(get(h_ap,'Xlabel'),'String','Time(s)','FontName','Times New Roman','FontSize',10,...
  'FontWeight','bold','FontAngle','normal');%設置座標軸刻度字體名稱，大小
  set(get(h_ap,'Ylabel'),'String','Ut(V)','FontName','Times New Roman','FontSize',10,...
  'FontWeight','bold','FontAngle','normal');
  h_at=axes('Position',get(h_ap,'Position')); %在相同位置新建一個軸
  set(h_at,'Color','none','Xcolor','k','Ycolor','k'); %軸的顏色是黑色
  set(h_at,'Xaxislocation','bottom');
  set(h_at,'Yaxislocation','right','Ydir','normal') %
  set(h_at,'Xtick',pxtick);%設爲相同的X刻度間隔
  %set(h_at,'Xticklabel',{'0','6000','12000','18000','24000','30000'}); %設置刻度的顯示內容
  %set(get(h_at,'Ylabel'),'String','It(A)','FontName','Times New Roman','FontSize',10,...
  %'FontWeight','bold','FontAngle','normal');
  set(h_at,'Ylim',[Y2s,Y2l]) %
  set(h_at,'Xlim',[Xs,Xl]) %
  hlineI=line(1:len,it,'Color','r','Parent',h_at);%畫線
  %hlegend= legend(h_ap, [h_linet hlineI], 'Ut', 'It', 0); %爲兩條曲線創建圖例
  %set(hlegend,'Box','off');