## 一、简介 基于matlab GUI地球自转模拟 ## 二、源代码 ```c function varargout = globegui(varargin) % GLOBEGUI M-file for globegui.fig created with GUIDE % % Creates a GUI for viewing a spinning Earth globe % % GLOBEGUI, by itself, creates a new GLOBEGUI or raises the existing % one. % % H = GLOBEGUI returns the handle to a new GLOBEGUI or the handle to % the existing one. % % GLOBEGUI('CALLBACK',hObject,eventData,handles,...) calls the local % function named CALLBACK in GLOBEGUI.M with the given input arguments. % % GLOBEGUI('Property','Value',...) creates a new GLOBEGUI or raises the % existing one. Starting from the left, property value pairs are % applied to the GUI before globegui_OpeningFcn gets called. An % unrecognized property name or invalid value makes property application % stop. All inputs are passed to globegui_OpeningFcn via varargin. % % See also: GUIDE, GUIDATA, GUIHANDLES % Last Modified by GUIDE v2.5 10-Mar-2021 09:50:13 % % Begin initialization code - DO NOT EDIT gui_Singleton = 1; gui_State = struct('gui_Name', mfilename, ... 'gui_Singleton', gui_Singleton, ... 'gui_OpeningFcn', @globegui_OpeningFcn, ... 'gui_OutputFcn', @globegui_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 globegui is made visible. function globegui_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 globegui (see VARARGIN) % Check whether initialization has been done in case this GUI % is a singleton and has already been opened. % if isfield(handles,'running') % disp('No initialization this time.') % else % handles.running = true; % guidata(hObject,handles) % disp('Initializing...') % end % Choose default command line output for globegui handles.output = hObject; % Update handles structure guidata(hObject, handles); % UIWAIT makes globegui wait for user response (see UIRESUME) % uiwait(handles.figure1); % --- Outputs from this function are returned to the command line. function varargout = globegui_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 spinstopbutton. function spinstopbutton_Callback(hObject, eventdata, handles) % Spins the globe in the axes or stops it, renaming the button % from "Spin" to "Stop" and back again. When its label is "Stop" % this callback is executing an endless loop and is re-entered; % thus it must have properties set as follows (which is the % default behavior of a GUIDE GUI): % Interruptible: 'on', BusyAction: 'queue' % % hObject handle to spinstopbutton (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) str = get(hObject,'String'); % get the current pushbutton string % Determine which string the label matches state = find(strcmp(str,handles.Strings)); % Toggle the button label to other string set(hObject,'String',handles.Strings{3-state}); % If the index when entering was 1, start to spin the object if (state == 1) % globe = struct; filming = handles.movie; az = handles.azimuth; hgrotate = handles.tform; % Spin globe as long as the figure exists or until user % interrupts by pressing the button a second time while ishandle(handles.axes1) % If button label changed since last iteration, stop now if find(strcmp(get(hObject,'String'),... handles.Strings)) == 1 % Save rotation state to restart at this orientation handles.azimuth = az; guidata(hObject,handles); break end az = az + 0.01745329252; % Increment azimuth (in radians) % to rotate east one degree % Modify the hgtransform controling the two surface objects set(hgrotate,'Matrix',makehgtform('zrotate',az)); drawnow % Refresh the screen % If the Make movie button is checked, save frames % but don't store more than one revolution % NOTE: filming slows down the animation % Need to test whether axes exists because user can quit % during filming, destroying axes and figure if ishandle(handles.axes1) && filming > 0 && filming < 361 globeframes(filming) = getframe(handles.axes1); filming = filming + 1; end end % Write captured frames to MAT-file if in movie mode if (filming) filename = sprintf('globe%i.mat',filming-1); disp(['Writing movie to file ' filename]); save (filename, 'globeframes') end end % --- Executes on button press in quitbutton. function quitbutton_Callback(hObject, eventdata, handles) % hObject handle to quitbutton (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) %handles = guidata(hObject); % Get the figure's handle, then destroy it fig = handles.figure1; close(fig) % --- Executes during object creation, after setting all properties. function spinstopbutton_CreateFcn(hObject, eventdata, handles) % hObject handle to spinstopbutton (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles empty - not created until after all CreateFcns called % Creates the handles structure and places into it label strings % to test button's current name against handles.Strings = {'Spin';'Stop'}; % Commit the new struct element to appdata guidata(hObject, handles); % --- Executes during object creation, after setting all properties. function axes1_CreateFcn(hObject, eventdata, handles) % hObject handle to axes1 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles empty - not created until after all CreateFcns called % Hint: place code in OpeningFcn to populate axes1 % Generate a colormap appropriate for terrain display cmap = [0 0 0.2000; 0 0 0.2471;... 0 0 0.2941; 0 0 0.3412;... 0 0 0.3882; 0 0 0.4353;... 0 0 0.4824; 0 0 0.5294;... 0 0 0.5765; 0 0 0.6235;... 0 0 0.6706; 0 0 0.7176;... 0 0 0.7647; 0 0 0.8118;... 0 0 0.8588; 0 0 0.9059;... 0 0 0.9529; 0 0 1.0000;... 0 0.0556 1.0000; 0 0.1111 1.0000;... 0 0.1667 1.0000; 0 0.2222 1.0000;... 0 0.2778 1.0000; 0 0.3333 1.0000;... 0 0.3889 1.0000; 0 0.4444 1.0000;... 0 0.5000 1.0000; 0 0.5556 1.0000;... 0 0.6111 1.0000; 0 0.6667 1.0000;... 0 0.7222 1.0000; 0 0.7778 1.0000;... 0 0.8333 1.0000; 0 0.8889 1.0000;... 0 0.9444 1.0000; 0 1.0000 1.0000;... 0 0.4000 0.2000; 0.0253 0.4429 0.2043;... 0.0555 0.4857 0.2092; 0.0906 0.5286 0.2157;... 0.1306 0.5714 0.2251; 0.1755 0.6143 0.2382;... 0.2253 0.6571 0.2562; 0.2800 0.7000 0.2800;... 0.3684 0.7429 0.3396; 0.4586 0.7857 0.4041;... 0.5496 0.8286 0.4735; 0.6402 0.8714 0.5478;... 0.7296 0.9143 0.6269; 0.8165 0.9571 0.7110;... 0.9000 1.0000 0.8000; 0.8499 0.9538 0.7044;... 0.8099 0.9077 0.6144; 0.7787 0.8615 0.5302;... 0.7548 0.8154 0.4516; 0.7367 0.7692 0.3787;... 0.7231 0.7231 0.3115; 0.6769 0.6413 0.2499;... 0.6308 0.5580 0.1941; 0.5846 0.4744 0.1439;... 0.5385 0.3921 0.0994; 0.4923 0.3124 0.0606;... 0.4462 0.2368 0.0275; 0.4000 0.1667 0]; load topo % Get 1x1 degree terrain grid % Make axes a slightly oversized unit box centered on 0,0,0 set(hObject,'xlim',[-1.02 1.02],... 'ylim',[-1.02 1.02],... 'zlim',[-1.02 1.02]); % Create a spherical structure [x,y,z] = sphere(50); hgttilt = hgtransform; hgrotate = hgtransform('parent',hgttilt); % Set display properties props.FaceColor= 'texture'; props.EdgeColor = 'none'; props.FaceLighting = 'gouraud'; props.Cdata = topo; % Use topo grid as a texturemap props.Parent = hgrotate; % Make hgtransform surface parent hsurf = surface(x,y,z,props); % Draw 3-D view colormap(cmap) % Use special terrain colormap defined above % Rotate the surface by 23.44 deg (0.4091 radians) around x-axis; % this is the earth's tilt from normal to the ecliptic. % To learn about geometric operations, type "doc hgtransform". set(hgttilt,'Matrix',makehgtform('xrotate',0.4091)); % Create another mesh to be the graticule [gx,gy,gz] = sphere(15); % Decimate every other row to make mesh elements square for j = 2:9 gx(j,:) = []; gy(j,:) = []; gz(j,:) = []; end ``` ## 三、运行结果  ## 四、备注 版本：2014a