How to limit the movement of a rectangle?

Question

BoSeon Kang 2019-11-14

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/491075-how-to-limit-the-movement-of-a-rectangle

评论： BoSeon Kang 2019-11-15

采纳的回答： Stijn Haenen

在 MATLAB Online 中打开

I use RectangleMovingEvent.

But I want to move the rectangle only vertically.

So I changed the values of PreviousPosition and CurrentPosition, but they are the same.

How do I limit the movement of the rectangle ??

roi = drawrectangle('Position',p ,'Color',[1 0 0]);
addlistener(roi, 'MovingROI', @(a, b)roi_moved(a, b, handles));
function roi_moved(hObject, eventdata, handles)
p = hObject.Position;

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

Stijn Haenen 2019-11-14

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/491075-how-to-limit-the-movement-of-a-rectangle#answer_401511

在 MATLAB Online 中打开

maybe this will work:

roi = drawrectangle('Position',p ,'Color',[1 0 0]);
t=0;
while t<1
    pause(0.15);pos=get(roi,'position');
    set(roi,'position',[p(1) pos(2) p(3) p(4)])
    t=t+0.01;
end