# guideでワークス​ペースの変数を使用す​る方法について

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Ryosuke Takahashi on 20 Oct 2018
Answered: Ryosuke Takahashi on 23 Oct 2018

よろしくお願いいたします。
function buttonPlot
% Create a UI figure window
fig = uifigure('Name','checking cutout start time');
% Create a EMG axses1
ax1 = uiaxes('Parent',fig,... 'Units','pixels',... 'Position',[50, 220, 400, 200]);
% Create a UI axses2
ax2 = uiaxes('Parent',fig,... 'Units','pixels',... 'Position',[50, 20, 400, 200]);
% Create a push button
btn = uibutton(fig,'push',... 'Text','update',... 'Position',[460, 120, 100, 20],... 'ButtonPushedFcn',@(btn,event) plotButtonPushed(btn,ax2));
% Create a wave
x = linspace(0,2*pi,100); y = sin(x)*rand; plot(ax1, x, y,'k'); end
%Create the function for the ButtonPushedFcn callback
function plotButtonPushed(btn,ax2) x = linspace(0,2*pi,100); y = sin(x)*rand; plot(ax2, x, y,'k');
end
Stephan on 20 Oct 2018
Edited: Stephan on 20 Oct 2018
Try of translation:
About how to use workspace variables in Guide
Currently I would like to create a program so that I can update data read by workspace with button push. Although it was possible to display the original waveform in the upper figure above and the updated waveform in the lower figure with the sin wave, I did not know how to use workspace data with gide.
Although it may be an elementary question, I would be pleased if you could teach.
Thank you.
function buttonPlot
% Create a UI figure window
fig = uifigure('Name','checking cutout start time');
% Create a EMG axses1
ax1 = uiaxes('Parent',fig,... 'Units','pixels',... 'Position',[50, 220, 400, 200]);
% Create a UI axses2
ax2 = uiaxes('Parent',fig,... 'Units','pixels',... 'Position',[50, 20, 400, 200]);
% Create a push button
btn = uibutton(fig,'push',... 'Text','update',... 'Position',[460, 120, 100, 20],... 'ButtonPushedFcn',@(btn,event)
plotButtonPushed(btn,ax2));
% Create a wave
x = linspace(0,2*pi,100);
y = sin(x)*rand;
plot(ax1, x, y,'k');
end
%Create the function for the ButtonPushedFcn callback
function plotButtonPushed(btn,ax2)
x = linspace(0,2*pi,100);
y = sin(x)*rand;
plot(ax2, x, y,'k');
end

Naoya on 23 Oct 2018
ご質問の主旨としては コールバック関数 plotButtonPushed() から、ベースワークスペース変数 x,y を使用して、 ax2 上にプロット表示されたいということになりますでしょうか？
evalin() と呼ばれるコマンドで、指定したワークスペース上でMATLAB 式を実行することができますので、こちらを利用されてはいかがでしょうか？
function plotButtonPushed(btn,ax2)
%x = linspace(0,2*pi,100);
%y = sin(x)*rand;
x = evalin('base','x'); % ベースワークスペースの x を読み込む
y = evalin('base','y'); % ベースワークスペースの y を読み込む
plot(ax2, x, y,'k');
end

Ryosuke Takahashi on 23 Oct 2018

おかげさまで無事に解決しました。
ご教示頂きありがとうございました。

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