Passing a value from a slider (guide) to a related function

3 次查看（过去 30 天）
Frédéric Vanden Eynden
回答： Adam 2016-12-19
I've designed a Gui with Guide. Basically I want to use a slider to define the part of a recorded curve that will be used as a template for a fitting function. The gui is in one .m file and the funciton in another .m file The gui is working fine , the slider adopts correct values. When I want to use this value in the function file I get the message "Not enough input argument". The function start with an (handle) declaration I tried with t=get(handle.slider2,'value') , not wotking , I tried with a combination -setappdat and getappdata-, empty matrix, I tried with findobj(0,'Tag',slider2), empty matrix. I'm kind of stuck here. Any suggestions would be appreciated.
% --- Executes on slider movement.
function slider2_Callback(hObject, eventdata, handles)
% hObject handle to slider2 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
slidervalue2=get(hObject,'Value');
set(handles.text4,'String',num2str(slidervalue2))
%setappdata(hObject,'Valueslider2',slidervalue2);
% Hints: get(hObject,'Value') returns position of slider
% get(hObject,'Min') and get(hObject,'Max') to determine range of slider
% --- Executes during object creation, after setting all properties.
function slider2_CreateFcn(hObject, eventdata, handles)
% hObject handle to slider2 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles empty - handles not created until after all CreateFcns called
% Hint: slider controls usually have a light gray background.
if isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
set(hObject,'BackgroundColor',[.9 .9 .9]);
function fitsinglebeat (handles)
pressure=getappdata(0,'pressure')
T=numel(pressure)
tsyst0=0
%sl1=findobj(0,'Tag','slider2')
tsyst1=get(handles.slider2,'value')
%tsyst1=getappdata(0,'valueslider2')

请先登录，再回答此问题。

回答（1 个）

Adam
Adam 2016-12-19
You aren't calling your fitsinglebeat function anywhere, but don't pass handles to it. If you want a single value from your slider then just pass this to it, not a whole structure full of things you don't want.
function fitsinglebeat ( value ) pressure=getappdata(0,'pressure') T=numel(pressure) tsyst0=0 tsyst1=value;
and just call it from your slider callback as
fitsinglebeat ( hObject.Value )
or
fitsinglebeat ( get( hObject, 'Value' ) ) % Pre R2014b

类别

在 Help Center 和 File Exchange 中查找有关 Creating, Deleting, and Querying Graphics Objects 的更多信息

标签

产品

Community Treasure Hunt

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

Start Hunting!

Translated by