How to use the function quiver in app designer?

Question

Elise Bruas 2021-5-17

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/832288-how-to-use-the-function-quiver-in-app-designer

编辑： Cris LaPierre 2021-5-17

Hello,

I don't know how to use quiver (2D) in app designer?

Imshow does not work and I want to display a figure with the quiver knowing that I have already created an empty figure in the designer view. Can someone help me?

Elise

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

Rik 2021-5-17

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/832288-how-to-use-the-function-quiver-in-app-designer#answer_701713

在 MATLAB Online 中打开

You can specify the Parent property:

%load example data from the doc

load('wind','x','y','u','v')

X = x(11:22,11:22,1);

Y = y(11:22,11:22,1);

U = u(11:22,11:22,1);

V = v(11:22,11:22,1);

ax=uiaxes(uifigure);% create uiaxes handle

quiver(X,Y,U,V,'Parent',ax)

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。

Answer 2

Cris LaPierre 2021-5-17

2
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/832288-how-to-use-the-function-quiver-in-app-designer#answer_701693

编辑：Cris LaPierre 2021-5-17

See this page: Graphics Support in App Designer.

The general adaptation to get it to work in app designer is to explicitly tell the function which axes to plot into. For some functions, like quiver, the target axis is one of the optional inputs.

quiver(ax,___)

For others, like imshow, you use use the 'Parent' name-value pair.

imshow('peppers.png','Parent',app.UIAxes);

In app designer, the default axis name is app.UIAxes.

Another helpful page is Display Graphics in App Designer.