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MATLAB GUI axes(handles.axes1) does not work?

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Tina
Tina 2013-8-18
评论： Walter Roberson 2017-12-21
Hello;
I have this simple code that is supposed to draw the line having its slope and y intercept. But when I use axes(handles.axes1);
nothing happens. What should I do?
  2 个评论
the cyclist
the cyclist 2013-8-18
Can you post a self-contained example that we can run that shows what you mean, in context?
Tina
Tina 2013-8-18
编辑：Image Analyst 2013-8-19
The GUI has a, b, c as edit text. When Solve push button is pressed, it should draw ax+by=c line on axes1.
function solve_Callback(hObject, eventdata, handles)
% hObject handle to solve (see GCBO)
% eventdata reserved - to be defined in atext future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
a=str2num(get(handles.a,'String'));
b=str2num(get(handles.b,'String'));
c=str2num(get(handles.c,'String'));
int=num2str(c/b);
slope=num2str(-a/b);
set(handles.y,'String',int)
set(handles.slope,'String',slope)
x=0:10;
y=c/b-a/b*x;
axes(handles.axes1);
xlabel('x');
ylabel('y');
guidata(hObject,handles);

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回答（1 个）

Image Analyst
Image Analyst 2013-8-19
axes() just switches focus to that particular axes control. It does not actually do any plotting at all. For that you'll need to use the plot() function
plot(x, y, 'bo-', 'LineWidth', 2, 'MarkerSize', 10);
grid on;
axis on;
ylabel('Y', 'FontSize', 30);
xlabel('X', 'FontSize', 30);
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Md Nafiul Islam
Md Nafiul Islam 2017-12-21
Dear, I have used the same code and I draw the line but I need two line of the same graph. Do anyone help me how I update this code to two line. TIA

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