【电场分布】基于matlab电偶极子电场分布【含Matlab源码 3555期】.zip

function varargout = gui_eped(varargin) % GUI_EPED MATLAB code for gui_eped.fig % GUI_EPED, by itself, creates a new GUI_EPED or raises the existing % singleton*. % % H = GUI_EPED returns the handle to a new GUI_EPED or the handle to % the existing singleton*. % % GUI_EPED('CALLBACK',hObject,eventData,handles,...) calls the local % function named CALLBACK in GUI_EPED.M with the given input arguments. % % GUI_EPED('Property','Value',...) creates a new GUI_EPED or raises the % existing singleton*. Starting from the left, property value pairs are % applied to the GUI before gui_eped_OpeningFcn gets called. An % unrecognized property name or invalid value makes property application % stop. All inputs are passed to gui_eped_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 % Edit the above text to modify the response to help gui_eped % Last Modified by GUIDE v2.5 12-Sep-2023 20:26:05 % Begin initialization code - DO NOT EDIT gui_Singleton = 1; gui_State = struct('gui_Name', mfilename, ... 'gui_Singleton', gui_Singleton, ... 'gui_OpeningFcn', @gui_eped_OpeningFcn, ... 'gui_OutputFcn', @gui_eped_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 gui_eped is made visible. function gui_eped_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 gui_eped (see VARARGIN) set(handles.a_edit,'string','2'); set(handles.b_edit,'string','2'); % Choose default command line output for gui_eped handles.output = hObject; % Update handles structure guidata(hObject, handles); % UIWAIT makes gui_eped wait for user response (see UIRESUME) % uiwait(handles.figure1); % --- Outputs from this function are returned to the command line. function varargout = gui_eped_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; function a_edit_Callback(hObject, eventdata, handles) % hObject handle to a_edit (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 a_edit as text % str2double(get(hObject,'String')) returns contents of a_edit as a double % --- Executes during object creation, after setting all properties. function a_edit_CreateFcn(hObject, eventdata, handles) % hObject handle to a_edit (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 b_edit_Callback(hObject, eventdata, handles) % hObject handle to b_edit (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 b_edit as text % str2double(get(hObject,'String')) returns contents of b_edit as a double % --- Executes during object creation, after setting all properties. function b_edit_CreateFcn(hObject, eventdata, handles) % hObject handle to b_edit (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 % --- Executes on button press in eped_button. function eped_button_Callback(hObject, eventdata, handles) % hObject handle to eped_button (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) a=str2num(get(handles.a_edit,'string')); b=str2num(get(handles.b_edit,'string')); x=-6:0.6:6; y=x; q=2e-6; k=9e9; [X,Y]=meshgrid(x,y); rp=sqrt((X-a).^2+(Y-b).^2); rm=sqrt((X+a).^2+(Y+b).^2); V=q*k*(1./rp-1./rm); [Ex,Ey]=gradient(-V); AE=sqrt(Ex.^2+Ey.^2); Ex=Ex./AE;Ey=Ey./AE; cv=linspace(min(min(V)),max(max(V)),49); contourf(X,Y,V,cv,'k-'); title('偶极子的电势和电场强度','fontsize',14); hold on quiver(X,Y,Ex,Ey,0.7); plot(a,b,'wo',a,b,'w+'); plot(-a,-b,'wo',-a,-b,'w-'); xlabel('x');ylabel('y'); hold off % --- Executes on button press in close_button. function close_button_Callback(hObject, eventdata, handles) % hObject handle to close_button (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) close