How to load a structure as a handle?

18 次查看（过去 30 天）
Ibro Tutic
Ibro Tutic 2017-6-1
回答： E Wilder 2018-12-9
I am trying to load a structure to a handle that I can use in a GUI. When I load the structure, I use
handles.data=load('structure.mat')
However, when I want to pull data from it, I have to use a nested structure of sorts. So if the original structure was DLG, when using the data within the GUI, I have to use handles.data.DLG.fieldname. Is there anyway to just use the DLG structure instead of all of the handles stuff? Below is a function that might be relevant to the question.
function pushbutton2_Callback(hObject, eventdata, handles)
% hObject handle to pushbutton2 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
handles.data = load(fullfile(handles.folder, handles.item));
tmp_nam = fieldnames(handles.data.DLG.metadata);
tmp_val = cellfun(@(x)(handles.data.DLG.metadata.(x)),tmp_nam,'UniformOutput',false);
handles.table = [tmp_nam tmp_val];
set(handles.uitable2,'data',handles.table);
guidata(gcbo, handles);
  1 个评论
Jan
Jan 2017-6-1
编辑：Jan 2017-6-1
No, this does not "load data to a handle". The struct is called "handles", but it could have any other name also. A "handle" is something very specific. You load the contents of the file to a field of the struct "handles".
I do not know what "a nested structure of sorts" is. "all of the handles stuff" is not clear also.

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Jan
Jan 2017-6-1
编辑：Jan 2017-6-1
FileData = load('structure.mat');
handles.Dlg = FileData.Dlg;
I'm not sure, but perhaps tmp_val can be obtained easier:
tmp_val = struct2cell(FileData.Dlg);

更多回答（1 个）

E Wilder
E Wilder 2018-12-9
Daniel Shrub provides a good answer to this here:
https://www.mathworks.com/matlabcentral/answers/46884-is-there-something-like-a-struct-pointer-in-matlab

类别

在 Help Center 和 File Exchange 中查找有关 Structures 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by