MATLAB: How Assign a Plot to a Specific Axes

axesguideplot

I have drawn two Axes in GUIDE.

How can I assign each of my plots to one of them?

when I now run it, MATLAB just put both plots on one another.

Best Answer

Use the handles of the axes objects:

plot(1:10,  rand(1, 10), 'Parent', handles.axes1)
plot(1:10, -rand(1, 10), 'Parent', handles.axes2)

This assumes, that your axes have the names "axes1" and "axes2" (I don't know if this is the standard in GUIDE) and that they are stored in the handles struct, which should be available in your callback.

Related Solutions

MATLAB: GUI handles reference to non-existent field ‘timer’

While your code in the Boid_GUI_OpeningFcn function is adding the timer to the handles structure, you are only modifying the "local" copy of it. If you want to save these changes to this structure, then you need to call guidata so that all other callbacks (from that point on) receive the updated version of handles. So in the Boid_GUI_OpeningFcn just do

% --- Executes just before Boid_GUI is made visible.
function Boid_GUI_OpeningFcn(hObject, eventdata, handles, varargin)
% This function has no output args, see OutputFcn.
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
% varargin   command line arguments to Boid_GUI (see VARARGIN)
% Choose default command line output for Boid_GUI
handles.output = hObject;
% UIWAIT makes Boid_GUI wait for user response (see UIRESUME)
% uiwait(handles.figure1);
handles.N = 20; % define the number of boids
% initialize boids position and velocity
boid.pos = 5000.*rand(handles.N,2);
boid.vel = [150.*rand(handles.N,1) 10.*rand(handles.N,1)];
boid_plotter(boid,handles)	% call the function to plot the boids in the GUI window
% create timer object 
handles.timer = timer;
set(handles.timer,'TimerFcn',{@my_callback_fun,handles},'Period',.1)
set(handles.timer,'ExecutionMode','fixedRate','UserData',boid)
% Update handles structure
guidata(hObject, handles);

I just moved the line guidata(hObject, handles); to the end of the function. Note that whenever you make a change to handles you always need to call guidata in this manner.

MATLAB: How to Assign an Axes Object to a struct

hAxes = axes('NextPlot', 'add', 'XLim', [0, 20], 'YLim', [-1, 10], 'Position', [0 0 0.5 0.5]);
h2Axes = axes('NextPlot', 'add', 'XLim', [0, 20], 'YLim', [-1, 10], 'Position', [0.5 0.5 0.5 0.5]);
W = 4;
Y = 0;
H = 8;
for i = 1 : 3
  X = i.* W;
  R = rectangle('Parent', hAxes);
  % Or:
  % R.Parent = hAxes;
  R.Position = [X Y W H];
  G(i).r = R;
end

Best Answer

Related Solutions

MATLAB: GUI handles reference to non-existent field ‘timer’

MATLAB: How to Assign an Axes Object to a struct

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