MATLAB Object-Oriented Programming

function createLisn(obj)

obj.HLUpdateGraph = addlistener(obj.FcnObject,'UpdateGraph',...

@(src,evnt)listenUpdateGraph(obj,src,evnt));

obj.HLLm = addlistener(obj.FcnObject,'Lm','PostSet',...

@(src,evnt)listenLm(obj,src,evnt));

end

function lims(obj)

lmts = obj.FcnObject.Lm;

set(obj.HAxes,'XLim',lmts);

set(obj.HAxes,'Ylim',lmts);

end

function updateSurfaceData(obj)

data = obj.FcnObject.Data;

set(obj.HSurface,...

'XData',data.X,...

'YData',data.Y,...

'ZData',data.Matrix);

end

function listenUpdateGraph(obj,~,~)

if ishandle(obj.HSurface)

obj.updateSurfaceData

end

end

function listenLm(obj,~,~)

if ishandle(obj.HAxes)

lims(obj);

if ishandle(obj.HSurface)

obj.updateSurfaceData

end

end

end

function delete(obj)

if ishandle(obj.HAxes)

delete(obj.HAxes);

else

return

end

end

11 Events — Sending and Responding to Messages