How to Execute Something When a Graphics Object is Left-Clicked?

Question

Rightia Rollmann 2017-2-27

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/327112-how-to-execute-something-when-a-graphics-object-is-left-clicked

编辑： Jan 2017-2-27

I want the red rectangle to turn green when I only “left-click” (not right-click or middle click) on it. What is the easiest solution?

hax = axes('XLim', [0 4], 'YLim', [0 4]);
r = rectangle('Position', [1 1 1 1], 'FaceColor', 'r');

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Jan 2017-2-27

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/327112-how-to-execute-something-when-a-graphics-object-is-left-clicked#answer_256479

编辑：Jan 2017-2-27

在 MATLAB Online 中打开

function test
FigH = figure;
hax = axes('XLim', [0 4], 'YLim', [0 4]);
r = rectangle('Position', [1 1 1 1], 'FaceColor', 'r', ...
              'ButtonDownFcn', {@RectClickCB, FigH});
function RectClickCB(RectH, EventData, FigH)
switch get(FigH, 'SelectionType')
case 'normal'  % Left click
  set(RectH, 'FaceColor', 'g');
case 'alt'     % Right click
case 'extend'  % Middle click
otherwise
  ...
end