Matlab 透明打印

我必须绘制两条相互重叠的曲线，如下所示。如何使重叠区域透明，以使较低的曲线可见？在重叠区域中，我当前只能看到顶部曲线

x=0:0.01:2*pi;                  %#initialize x array
y1=sin(x);                      %#create first curve
y2=sin(x)+.5;                   %#create second curve
X=[x,fliplr(x)];                %#create continuous x value array for plotting
Y=[y1,fliplr(y2)];              %#create y values for out and then back
fill(X,Y,'b');                  %#plot filled area
%*****************
hold on
x=0:0.01:2*pi;                  %#initialize x array
y1=sin(2.*x);                   %#create first curve
y2=sin(2.*x)+.5;                %#create second curve
X=[x,fliplr(x)];                %#create continuous x value array for plotting
Y=[y1,fliplr(y2)];              %#create y values for out and then back
fill(X,Y,'b');                  %#plot filled area

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替换上一个命令

fill（X，Y，'b'）带有：

h = fill(X,Y,'b');

获取其创建的面片对象的控制柄。然后键入：

set(h, 'FaceAlpha', 0.5)


这能满足你的需要吗