透明绘图 [英] Plotting with transparency

问题描述

我必须绘制以下两条相互重叠的曲线.如何使重叠区域透明，以使下部曲线可见?在重叠区域中，我目前只能看到顶部曲线.

I have to plot two curves as below that overlap each other. How I can make the overlapping area transparent, in order that the lower curve is visible? In the overlapping area, I can currently only see the top curve.

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

推荐答案

将上一个命令fill(X,Y,'b');替换为:

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

获取其创建的补丁对象的句柄.然后输入:

to get a handle to the patch object it creates. Then type:

set(h, 'FaceAlpha', 0.5)

那是您需要的吗?

这篇关于透明绘图的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！