在MATLAB环境下插值拟合曲线

function varargout = My0703(varargin) gui_Singleton = 1; gui_State = struct('gui_Name', mfilename, ... 'gui_Singleton', gui_Singleton, ... 'gui_OpeningFcn', @My0703_OpeningFcn, ... 'gui_OutputFcn', @My0703_OutputFcn, ... 'gui_LayoutFcn', [], ... 'gui_Callback', []); if nargin && ischar(varargin{1}) gui_State.gui_Callback = str2func(varargin{1}); end if nargout [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:}); else gui_mainfcn(gui_State, varargin{:}); end function My0703_OpeningFcn(hObject, eventdata, handles, varargin) handles.peaks=peaks(35); handles.membrane=membrane; [x,y]=meshgrid(-8:0.5:8); r=sqrt(x.^2+y.^2)+eps; sinc=sin(r)./r; handles.sinc=sinc; handles.current_data=handles.peaks; surf(handles.current_data); handles.output = hObject; guidata(hObject, handles); function varargout = My0703_OutputFcn(hObject, eventdata, handles) varargout{1} = handles.output; function Surf_pushbutton_Callback(hObject, eventdata, handles) surf(handles.current_data); function Mesh_pushbutton_Callback(hObject, eventdata, handles) mesh(handles.current_data); function Contour_pushbutton_Callback(hObject, eventdata, handles) contour(handles.current_data); function data_popup_Callback(hObject, eventdata, handles) val=get(hObject,'Value'); str=get(hObject,'String'); switch str{val} case 'peaks' handles.current_data=handles.peaks; case 'membrane' handles.current_data=handles.membrane; case 'sinc' handles.current_data=handles.sinc; end guidata(hObject,handles);