matlab gui多条线分别显示，高亮

最新推荐文章于 2025-07-05 09:04:51 发布

原创最新推荐文章于 2025-07-05 09:04:51 发布 · 3.6k 阅读

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本文介绍了一个使用Matlab进行绘图的例子，通过linspace生成数据并绘制四条不同类型的曲线，同时实现了图例点击交互功能：点击图例项可以切换对应曲线的可见性，双击则使该曲线闪烁。

x = linspace(0,10);
y1 = sin(x);
y2 = cos(x);
y3 = sin(x) + cos(x);
y4 = sin(x) .* cos(x);
plot(x,y1,x,y2,x,y3,x,y4)
hLeg = legend('Line 1','Line 2','Line 3','Line 4');
hLeg.ItemHitFcn = @tmp;

function tmp(src,event)
% This callback toggles the visibility of the line

if strcmp(event.Peer.Visible,'on')   % If current line is visible
    event.Peer.Visible = 'off';      %   Set the visibility to 'off'
else                                 % Else
    event.Peer.Visible = 'on';       %   Set the visibility to 'on'
end
end

function tmp(src,event)
% This callback causes the line to "blink"

for id = 1:3                        % Repeat 3 times
    event.Peer.LineWidth = 3;       % Set line width to 3
    pause(0.2)                      % Pause 0.2 seconds
    event.Peer.LineWidth = 0.5;     % Set line width to 0.5
    pause(0.2)                      % Pause 0.2 seconds
end