使用MATLAB实现windows自带的画图板功能

function varargout = net1(varargin) % NET1 M-file for net1.fig % NET1, by itself, creates a new NET1 or raises the existing % singleton*. % % H = NET1 returns the handle to a new NET1 or the handle to % the existing singleton*. % % NET1('CALLBACK',hObject,eventData,handles,...) calls the local % function named CALLBACK in NET1.M with the given input arguments. % % NET1('Property','Value',...) creates a new NET1 or raises the % existing singleton*. Starting from the left, property value pairs are % applied to the GUI before net1_OpeningFunction gets called. An % unrecognized property name or invalid value makes property application % stop. All inputs are passed to net1_OpeningFcn via varargin. % % *See GUI Options on GUIDE's Tools menu. Choose "GUI allows only one % instance to run (singleton)". % % See also: GUIDE, GUIDATA, GUIHANDLES % Last Modified by GUIDE v2.5 02-Aug-2009 23:24:02 % Begin initialization code - DO NOT EDIT gui_Singleton = 1; gui_State = struct('gui_Name', mfilename, ... 'gui_Singleton', gui_Singleton, ... 'gui_OpeningFcn', @net1_OpeningFcn, ... 'gui_OutputFcn', @net1_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 % End initialization code - DO NOT EDIT % --- Executes just before net1 is made visible. function net1_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 net1 (see VARARGIN) % Choose default command line output for net1 handles.output = hObject; movegui(gcf,'center'); % Update handles structure guidata(hObject, handles); % UIWAIT makes net1 wait for user response (see UIRESUME) % uiwait(handles.figure1); % --- Outputs from this function are returned to the command line. function varargout = net1_OutputFcn(hObject, eventdata, handles) % varargout cell array for returning output args (see VARARGOUT); % hObject handle to figure % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % Get default command line output from handles structure varargout{1} = handles.output; % --- Executes on button press in pushbutton1. % --- Executes on mouse press over figure background, over a disabled or % --- inactive control, or over an axes background. % --- Executes during object creation, after setting all properties. function figure1_CreateFcn(hObject, eventdata, handles) % hObject handle to figure1 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles empty - handles not created until after all CreateFcns called global flg mark rgb graph; flg=0; %f初始鼠标没有按下 graph='点线'; mark='.'; rgb=[1,0,0]; function figure1_WindowButtonDownFcn(hObject, eventdata, handles) % hObject handle to figure1 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) global flg mark rgb x0 y0 x y rect graph; flg=1; set(handles.pushbutton2,'enable','on'); set(handles.pushbutton3,'enable','on'); currPt = get(gca, 'CurrentPoint'); x = currPt(1,1); y = currPt(1,2); switch(graph) case '点线' line(x,y, 'marker', mark,'color',rgb); otherwise line(x,y,'LineStyle',mark,'color',rgb); end x0=x;y0=y; set(handles.edit1,'string',num2str(x)); set(handles.edit2,'string',num2str(y)); set(handles.text3,'string','Mouse down!'); % --- Executes on mouse motion over figure - except title and menu. function figure1_WindowButtonMotionFcn(hObject, eventdata, handles) % hObject handle to figure1 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) global flg mark rgb x0 y0 x y rect graph h; if flg switch(graph) case '点线' currPt=get(gca, 'CurrentPoint'); x=currPt(1,1); y=currPt(1,2); line(x,y, 'marker', mark,'color',rgb); case '线形' x0=x;y0=y; currPt=get(gca, 'CurrentPoint'); x=currPt(1,1); y=currPt(1,2); line([x0 x], [y0,y],'LineStyle',mark,'color',rgb); case '矩形' currPt=get(gca, 'CurrentPoint'); x=currPt(1,1); y=currPt(1,2); if x~=x0 if ~isempty(h) set(h,'Visible','off') end rect=[min([x0,x]),min([y0,y]),abs(x-x0),abs(y-y0)]; if rect(3)*rect(4)~=0 h=rectangle('Position',rect,'LineStyle',':'); end end case '椭圆' currPt=get(gca, 'CurrentPoint'); x=currPt(1,1); y=currPt(1,2); if x~=x0 if ~isempty(h) set(h,'Visible','off') end rect=[min([x0,x]),min([y0,y]),abs(x-x0),abs(y-y0)]; if rect(3)*rect(4)~=0 h=rectangle('Position',rect,'Curvature',[1,1],'LineStyle',':'); end end end set(handles.edit1,'string',num2str(x)); set(handles.edit2,'string',num2str(y)); set(handles.text3,'string','Mouse is moving!'); end function figure1_WindowButtonUpFcn(hObject, eventdata, handles) % hObject handle to figure1 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) global flg rgb mark h graph rect; flg=0; switch(graph) case '矩形' set(h,'Visible','off');h=[]; if rect(3)*rect(4)~=0 rectangle('Position',rect,'edgecolor',rgb,'LineStyle',mark) end case '椭圆' set(h,'Visible','off');h=[]; if rect(3)*rect(4)~=0 rectangle('Position',rect,'Curvature',[1,1],'edgecolor',rgb,'LineStyle',mark) end end set(handles.text3,'string','Mouse up!'); function edit1_Callback(hObject, eventdata, handles) % hObject handle to edit1 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % Hints: get(hObject,'String') returns contents of edit1 as text % str2double(get(hObject,'String')) returns contents of edit1 as a double % --- Executes during object creation, after setting all properties. function edit1_CreateFcn(hObject, eventdata, handles) % hObject handle to edit1 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles empty - handles not created until after all CreateFcns called % Hint: edit controls usually have a white background on Windows. % See ISPC and COMPUTER. if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor')) set(hObject,'BackgroundColor','white'); end function edit2_Callback(hObject, eventdata, handles) % hObject handle to edit2 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % Hints: get(hObject,'String') returns contents of edit2 as text % str2double(get(hObject,'String')) returns contents of edit2 as a double % --- Execute