中财网2016晋江高积分金牌榜:matlab用plotyyA函和plotxxB生成双xy轴曲线_matlab
来源：百度文库 编辑：中财网 时间：2024/05/03 04:58:51
matlab用plotyyA函和plotxxB生成双xy轴曲线
该文章讲述了matlab用plotyyA函和plotxxB生成双xy轴曲线.
matlab用plotyy(A)函和plotxx(B)生成双x/y轴曲线,具体程序如下：
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%功能：多重x\y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）
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
x1=1:10;
y1=1:10;
x2=1:10;
y2=5:14;
hl1 = line(x1,y1,'Color','r');%第一条曲线的绘制，以默认的主x\y轴为坐标
ax1 = 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')
%创建第二套坐标轴，设定颜色及位置
ax2=axes('Position',get(ax1,'Position'),...
hl2 = line(x2,sin(x2),'Color','k','Parent',ax2);%第二条曲线的绘制，以ax2为坐标系
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
注意：
（1）改变x1\y1\x2\y2就可以实现plotyy()和plotxx()的功能；
（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。