matlab 鼠标点击,MATLAB如何让鼠标点击坐标

获取鼠标点击位置让我们假设你已经绘制的图像与手柄imageHandle即：

imageHandle = imshow(imageObj);

您应该将ButtonDownFcn指定为t他的图像处理不是轴搞定：

set(imageHandle,'ButtonDownFcn',@ImageClickCallback);

，让鼠标从这个函数坐标如下：

function ImageClickCallback (objectHandle , eventData)

axesHandle = get(objectHandle,'Parent');

coordinates = get(axesHandle,'CurrentPoint');

coordinates = coordinates(1,1:2);

%// then here you can use coordinates as you want ...

end

你可以试试这个小演示来检查我的回答：

function demoOnImageClick

clc;clear;

imObj = rand(500,500);

figure;

hAxes = axes();

imageHandle = imshow(imObj);

set(imageHandle,'ButtonDownFcn',@ImageClickCallback);

function ImageClickCallback (objectHandle , eventData)

axesHandle = get(objectHandle,'Parent');

coordinates = get(axesHandle,'CurrentPoint');

coordinates = coordinates(1,1:2);

message = sprintf('x: %.1f , y: %.1f',coordinates (1) ,coordinates (2));

helpdlg(message);

end

end