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本帖最后由 baqiao 于 2020-4-21 13:35 编辑
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%功能:多重xy轴曲线的绘制 %输入:向量x1,y1,x2,y2 %输出:在同一个曲线图中,有两套x坐标轴(可以的话可以做两套y轴)
) x3 } p; n0 }4 @%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% x1=1:10; y1=1:10; x2=1:10; y2=5:14;
& z4 g! i7 q+ ]8 G1 mhl1 = line(x1,y1,'Color','r');%第一条曲线的绘制,以默认的主xy轴为坐标
! u' a3 g- i b2 W4 u1 q1 Uax1 = gca;%设置主坐标轴的颜色,用默认的位置,设定颜色 set(ax1,'XColor','r','YColor','r')
m# n8 ?+ z) J, V6 B%创建第二套坐标轴,设定颜色及位置 ax2=axes('Position',get(ax1,'Position'),... 'XAxisLocation','top',... 'YAxisLocation','right',... 'Color','none',... 'XColor','k','YColor','k'); * [, U* \, l7 `( R- Q( a
hl2 = line(x2,sin(x2),'Color','k','Parent',ax2);%第二条曲线的绘制,以ax2为坐标系 , `" x8 f) i! e {/ p3 j
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$ `' t7 {5 u7 A, X6 F A注意:
( M$ `0 B V/ d(1)改变x1y1x2y2就可以实现plotyy()和plotxx()的功能;
: w* i3 n9 J% ]5 ]/ f3 r(2)因为line()axes()为low_level函数,因此都是在主窗口句柄中绘制,不会产生子窗口,所以当想多增添一条曲线时,直接再用line()函数即可,不用像plot()那样还得用hold on语句。
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