how to call variable from another function in matlab - Reference to non-existent field 'nameoffile'.

Question

Gkhn A 2015-9-11

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/242473-how-to-call-variable-from-another-function-in-matlab-reference-to-non-existent-field-nameoffile

评论： Geoff Hayes 2015-9-12

采纳的回答： Walter Roberson

在 MATLAB Online 中打开

Hello,

I need use veriable from another function,

Undefined function or variable 'nameoffile'.*

i tried fix it, but i didnt.

    function Imageupdate_Callback(hObject, eventdata, handles)
  % hObject    handle to Imageupdate (see GCBO)
  % eventdata  reserved - to be defined in a future version of MATLAB
  % handles    structure with handles and user data (see GUIDATA)
  [FileName, Path] = uigetfile('*.bmp; *.png; *.jpg', 'Resim seçin' );
  nameoffile = fullfile(Path,FileName);
imshow(nameoffile);
% --- Executes on button press in pushbutton2.
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)
     Pname = get(handles.PersonName,'String');
     PSurname = get(handles.PersonSurname,'String');
     Bday = get(handles.PersonBDay,'String');
     Bplace = get(handles.PersonBP,'String');
       Psex=get(handles.PGSex, 'SelectedObject');
       Psex=get(Psex,'Tag');
       PPhone = get(handles.PPhone,'String');
       Padd = get(handles.Padd,'String');
%  if isempty(Pname)
  %  fprintf('Error: Enter Text first\n');
%  else
   % Write code for computation you want to do 
%  end
    connectface = database('facerecognition','root','');
    PersonalID = exec(connectface,'Select max(PID) from person'); 
    PersonalID = fetch(PersonalID) 
    PersonalID = PersonalID.data
    close(connectface);
addaperson(Pname,PSurname,Bday,Bplace,Psex,PPhone,Padd);
addaface(nameoffile,PersonalID);

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

Walter Roberson 2015-9-11

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/242473-how-to-call-variable-from-another-function-in-matlab-reference-to-non-existent-field-nameoffile#answer_192049

http://matlab.wikia.com/wiki/FAQ#How_can_I_share_data_between_callback_functions_in_my_GUI.3F

2 个评论
显示无隐藏无

Gkhn A 2015-9-12

Thank you for your answer. Yeah I looked it , but i didn't make. Can you edit my code?

Geoff Hayes 2015-9-12

在 MATLAB Online 中打开

Gkhn - in your callback that reads the image, save it to the handles structure as

 function Imageupdate_Callback(hObject, eventdata, handles)
 [FileName, Path] = uigetfile('*.bmp; *.png; *.jpg', 'Resim seçin' );
 nameoffile = fullfile(Path,FileName);
 imshow(nameoffile);
 handles.nameoffile = nameoffile;
 guidata(hObject, handles);

Now, nameoffile is a field within the handles structure that other callbacks can access. So in your other callback, do the following

 function pushbutton2_Callback(hObject, eventdata, handles)
 % other stuff
 addaperson(Pname,PSurname,Bday,Bplace,Psex,PPhone,Padd);
 if isfield(handles,'nameoffile')
     addaface(handles.nameoffile,PersonalID);
 end