MATLAB 2019a ginput spectrogram issue

Question

Shae Morgan 2019-4-22

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/457848-matlab-2019a-ginput-spectrogram-issue

评论： Shae Morgan 2019-4-22

I recently updated to 2019a from 2018a and my code no longer works. I get the error below from the following code:

y = randn(10^5,1);
fs = 10^4
spectrogram(y,600,450,[],fs,'yaxis','minthreshold',-110);
[x_info,y_info]=ginput(1);

"Unrecognized method, property, or field 'Visible' for class 'matlab.graphics.GraphicsPlaceholder'.

Error in ginput>setupFcn (line 225)

initialState.toolbarVisible{1} = tb.Visible;

Error in ginput (line 62)

initialState = setupFcn(fig);

Error in test (line 3)

[x_info,y_info]=ginput(1);"

This code is simplified; In the actual application, I'm gathering duration data from speech samples (displayed in the spectrogram to see onset/offset).

Any tips?

Thank you

Shae

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

Adam Danz 2019-4-22

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/457848-matlab-2019a-ginput-spectrogram-issue#answer_371727

编辑：Adam Danz 2019-4-22

在 MATLAB Online 中打开

Changes were made to the toolbar starting in R2018b. The ginput() function temporarily disables the toolbar on the figure. To do so, it must find the handle to the tool bar and set its Visible property to 'off'.

In your spectrogram plot, the toolbar handle is empty and the error is thrown because the empty handle doesn't have the 'Visible' property.

This is probably a bug; I'll report it.

I found a way to get around it, though. After creating the spectrogram plot and before calling ginput(), add a toolbar handle to the axes.

y = randn(10^6,1);
spectrogram(y,600,450,[],fs,'yaxis','minthreshold',-110);
axh = gca;                                             %add this
axh.Toolbar = matlab.ui.controls.AxesToolbar();       %add this
[x_info,y_info]=ginput(1);