share/load data (mat-file) AppDesigner
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Hy everybody, I would share soma variable from mat-file (workspace_invaso.mat) in AppDesigner, but I can't do it. I don't want to load the mat-file in every callback function. Best regard, Dario
% code
classdef Volume_invaso_1 < matlab.apps.AppBase
% Properties that correspond to app components
properties (Access = public)
UIFigure matlab.ui.Figure
UITable matlab.ui.control.Table
VOLUMEUTILEDINVASOLabel matlab.ui.control.Label
CapacitTextAreaLabel matlab.ui.control.Label
CapacityTextArea matlab.ui.control.TextArea
Button_Filo_Teso matlab.ui.control.Button
Button_Rippl matlab.ui.control.Button
Button_Peaks matlab.ui.control.Button
end
properties (Access = private)
load workspace_invaso.mat % Share variables
end
methods (Access = private)
% Code that executes after component creation
function startupFcn(app)
load workspace_invaso.mat;
app.UITable.Data=[Q_serie.annuale,Ve,Qu,Vu,Vc];
app.UITable.RowName={'Gennaio';'Febbraio';'Marzo';'Aprile';'Maggio';...
'Giugno';'Luglio';'Agosto';'Settembre';'Ottobre';'Novembre';'Dicembre'};
end
采纳的回答
Ameer Hamza
2018-5-12
0 个投票
The startupFcn just execute once, at the start of the app, so you are loading the file just once, not at every callback.
4 个评论
dario cecchetti
2018-5-12
Ameer Hamza
2018-5-12
I already said that startupFcn will only execute once. It appears that you are confused about how to share data after loading in startupFcn. You are getting the error because following is not a valid syntax
properties (Access = private)
load workspace_invaso.mat % Share variables
end
you can only declare the name of properties here.
Here is one way how you can share data between functions after loading. Create a private property data (or any other name) like this
properties (Access = private)
data
end
In the startupFcn, call the load() like this
app.data = load('workspace_invaso.mat');
this will return a struct with same fields as your mat file. For example, if your mat file has a variable named X, you can access it like app.data.X and this property is visible to all the function in the app so you can use app.data.(variable name) anywhere and access the required value.
dario cecchetti
2018-5-12
Ameer Hamza
2018-5-13
You are welcome.
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