MATLAB程序设计报告--基于MATLAB动画播放及音乐播放

1、MATLA程序设计课程设计报告设计题目： 基于MATLAB勺动画演示及背景音乐插入专 业：2011 级通信工程姓名（学号）： 储兆雄13邓少林14徐凯越23指导教 师： 倪建军（博士/副教授）时 间：2013 年12月20日目录1、设计目的2、总体设计3、具体设计（功能实现）4、结果分析5、改进方向6、心得体文献附录1、设计目的学会运用matlab工具箱实现matlab GUI设计，处理动画运行，以及添加背景音 乐，并实现其动态操作，如继续、暂停等功能。2、总体设计主要包括：动画模块，音乐模块，动画显示模块3、具体设计(功能实现)1) 动画模块( 1)打开动画文件：从文件打开对话框选择动画程序

2、，实现动画播放的可选择性程序实现代码如下：function btnvopen_Callback(hObject, eventdata, handles)% hObject handle to btnvopen (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)global vfname %动画文件名vfname vpname vindex=uigetfile( '*.

3、m' , 'choose moive file' ); len=length(vfname);if vindexset, 'string' ,vfname(1:len-2) end打开对话框效果如下：( 2)开始动画播放：先获取文件名称vfname(1:len-2) ，然后用run() 命令来执行程序实现代码如下：function btnvstart_Callback(hObject, eventdata, handles)% hObject handle to btnvstart (see GCBO)% eventdata reserved - to

4、be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)global vfnametrylen=length(vfname);run(vfname(1:len-2);catchmsgbox( 'sorry, there are some error while playingmovie!' , 'NOTICING');end 以下是其中两个动画程序snowed画%* 设置背景*%A=imread( 'H:'

5、; );h=figure;imshow(A);axesaxis(0 1 0 1);axis off ;set(gcf, 'color' , 'k' );N=20;handles=zeros(1,N);x=rand(2,N);fontsize=floor(rand(1,N)*17+32);new_handles_N=0;%绘图for i=1:Nhandles(i)=text(x(1,i),x(2,i),'*' , 'fontsize' ,fontsize(i), 'color'w' )Jendwhile 1i

6、f ishandle(h)returnendfor i=1:N);)/48*;temp=get(handles(i),'position'step=get(handles(i),'fontsize'if temp(2)<0new_handles_N=new_handles_N+1;new_handles(new_handles_N)= copyobj(handles(i),gca);if new_handles_N=500delete(new_handles);new_handles_N=0;endtemp(1)=rand(1);temp(2)=1;els

7、etemp(2)=temp(2)-step;temp(1)=temp(1)+rand(1)* end)+set(handles(i), 'position' ,temp, 'rotation' ,get(handles(i), 'rotation' 5);endpause(.2)end简单程序动画tryMovie=moviein(16);for k=1:16plot(fft(eye(k+16)axisequalaxisoffM(k)=getframe;endmovie(M,30);catchmsgbox( 'sorry, there ar

8、e some error while playingmovie!' , 'NOTICING');end动画效果如下：( 3)暂停/ 继续功能：获取pause 按钮 string 参数，实现暂停和继续播放功能的切换，而通过 timerPause() 函数来实现其功能程序实现代码如下：function btnvpause_Callback(hObject, eventdata, handles)% hObject handle to btnvpause (see GCBO)% eventdata reserved - to be defined in a future ve

9、rsion of MATLAB% handles structure with handles and user data (see GUIDATA)global symPause tryif strcmp(get, 'string' ), 'pause' )= timer( 'Period' , , 'ExecutionMode' , 'singleShot' , 'timerFcn' timerPause);set, 'string' , 'continue' )

10、 start;elseif strcmp(get, 'string' ), 'continue' )symPause =0;set, 'string' , 'pause' ) endcatchmsgbox( 'sorry, there are some error while excuting the function!' , 'NOTICING', 'error' ); endfunction timerPause(hObject,eventdata,handles)global

11、symPausesymPause=1;while symPause=1pause(1)end( 4)添加文字function btnvshow_Callback(hObject, eventdata, handles)% hObject handle to btnvshow (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA) tryif get, 'string

12、9; )set, 'string' ,get, 'string' ), .'visible' ,'on' ,'fontname' ,'? i ?' 'fontsize',;elseset, 'visible' , 'off' );msgbox( 'Add some words first!' );endcatchmsgbox( 'sorry, there are some error while excuting the fun

13、ction!' , 'NOTICING', 'error' );end 2)音乐模块( 1)打开音乐function btnmbrowse_Callback(hObject, eventdata, handles)% hObject handle to btnmbrowse (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)global

14、 mfilepathtrymfname mpname mindex=uigetfile( '*.wav' , 'choose music' );if mindexmfilepath=mpname mfname;set, 'string' ,mfilepath); endcatchmsgbox( 'Error,while importing music £?； 'NOTICING', 'error'); end ( 2)播放音乐function btnstart_Callback(hObject,

15、eventdata, handles)% hObject handle to btnstart (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA) global mfilepath player sign sign= 'false' ;tryif mfilepath=0data,Fs,nbits=wavread(mfilepath);elsetrydata,F

16、s,nbits=wavread('you are a song in my ');catchmsgbox( 'sorry,the default music does notexist' , 'NOTICING');endendplayer=audioplayer(data,Fs,nbits);play(player);sign= 'ture' ;set, 'string' , 'pause' , 'Enable' , 'on' );catchmsgbox( '

17、;Rrror while playing music!' , 'NOTICING');end( 3)暂停/ 继续功能function btnmpause_Callback(hObject, eventdata, handles)% hObject handle to btnmpause (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)global p

18、layer signtryif strcmp(get, 'string' ), 'pause' )pause(player);set, 'string' , 'continue' );elseif strcmp(get, 'string' ), 'continue' )resume(player);set, 'string' , 'pause' );endcatchmsgbox( 'sorry, there are some error while excut

19、ing the function!', 'NOTICING' );end( 4)停止播放音乐function btnmstop_Callback(hObject, eventdata, handles)% hObject handle to btnmstop (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)global player signtrys

20、top(player);sign= 'false' ;set, 'string' , 'pause' , 'Enable' , 'off' );catchmsgbox( 'ERROR', 'NOTICING' );end3)其他辅助功能( 1)关闭程序：在退出程序时，音乐不会自动停止，所以为了在退出程序时同时关闭音乐，才加入此功能function figure1_DeleteFcn(hObject, eventdata, handles)% hObject handle to fig

21、ure1 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)global player sign tryif strcmp(sign, 'true' )stop(player);close allendcatchmsgbox( 'sorry, there are some error while excuting the function!'

22、, 'NOTICING', 'error' );end( 2)异常捕捉机制try-catch由于程序功能再设计上考虑的并不是十分全面，可能会出现预料不到的错误，因此加入此功能，避免在出现未知错误时，程序崩溃。4、结果分析功能实现上看，基本上能达到预期效果，各个功能均可正常执行，在动画播放方面，有些方面还不尽如人意，比如说，由于实现了动画的可切换性，也就是说动画程序的独立性，使得自己编写的m文件和程序内部参数部分不一致，使得出现不同效果，比如， 有时动画在设计好的GUI 界面上显示，有时又以独立的窗口运行。音乐模块则与预期一致。另外，应该说是非人为因素，在动画播放的时候，添加背景音乐，此时动画会暂停，当音乐开始播放时，动画也恢复正常。从这个结果看，程序内部命令会相互影响，所以这将是我们队优化程序的一个方向。5、改进方向从程序演示过程发现以下问题，这将是本程序优化的方向。(1) 回调函数之间的干扰：最明显的结果表现为，动画运行过程中，点击其他的按钮，将短时间暂停动画程序。所以如何将动画独立于GUI 之外， 同时又受GU