【编程学习】matlab实用程序百例

宝宝 · 发表于 2004-6-1 18:02:20

<

>实例37：滑标的使用<

>h0=figure('toolbar','none',...
'position',[200 150 450 250],...
'name','实例37');
[x,y]=meshgrid(-8:0.5:8);
r=sqrt(x.^2+y.^2)+eps;
z=sin(r)./r;
h0=mesh(x,y,z);
h1=axes('position',...
[0.2 0.2 0.5 0.5],...
'visible','off');
htext=uicontrol(gcf,...
'units','points',...
'position',[20 30 45 15],...
'string','brightness',...
'style','text');
hslider=uicontrol(gcf,...
'units','points',...
'position',[10 10 300 15],...
'min',-1,...
'max',1,...
'style','slider',...
'callback',...
'brighten(get(hslider,''value''))');

宝宝 · 发表于 2004-6-1 18:02:47

<

>实例38：多选菜单<

>h0=figure('toolbar','none',...
'position',[200 150 450 250],...
'name','实例38');
[x,y]=meshgrid(-8:0.5:8);
r=sqrt(x.^2+y.^2)+eps;
z=sin(r)./r;
h0=mesh(x,y,z);
hlist=uicontrol(gcf,'style','listbox',...
'string','default|spring|summer|autumn|winter',...
'max',5,...
'min',1,...
'position',[20 20 80 100],...
'callback',[...
 'k=get(hlist,''value'');,',...
 'switch k,',...
 'case 1,',...
 'colormap default,',...
 'case 2,',...
 'colormap spring,',...
 'case 3,',...
 'colormap summer,',...
 'case 4,',...
 'colormap autumn,',...
 'case 5,',...
 'colormap winter,',...
 'end']);

宝宝 · 发表于 2004-6-1 18:03:22

<

>实例39：菜单控制的使用<

>h0=figure('toolbar','none',...
'position',[200 150 450 250],...
'name','实例39');
x=0:0.5:2*pi;
y=cos(x);
h=plot(x,y);
grid on
set(gcf,'toolbar','none')
hm=uimenu('label','example');
huidiao1=[...
 'set(hm_gridon,''checked'',''on''),',...
 'set(hm_gridoff,''checked'',''off''),',...
 'grid on'];
huidiao2=[...
 'set(hm_gridoff,''checked'',''on''),',...
 'set(hm_gridon,''checked'',''off''),',...
 'grid off'];
hm_gridon=uimenu(hm,'label','grid on',...
'checked','on',...
'callback',huidiao1);
hm_gridoff=uimenu(hm,'label','grid off',...
'checked','off',...
'callback',huidiao2);

宝宝 · 发表于 2004-6-1 18:04:01

<

>实例40：UIMENU菜单的应用<

>h0=figure('toolbar','none',...
'position',[200 150 450 250],...
'name','实例40');
h1=uimenu(gcf,'label','函数');
h11=uimenu(h1,'label','轮廓图',...
'callback',[...
 'set(h31,''checked'',''on''),',...
 'set(h32,''checked'',''off''),',...
 '[x,y,z]=peaks;,',...
 'contour3(x,y,z,30)']);
h12=uimenu(h1,'label','高斯分布',...
'callback',[...
 'set(h31,''checked'',''on''),',...
 'set(h32,''checked'',''off''),',...
 'mesh(peaks);,',...
 'axis tight']);
h13=uimenu(h1,'label','Sinc函数',...
'callback',[...
 'set(h31,''checked'',''on''),',...
 'set(h32,''checked'',''off''),',...
 '[x,y]=meshgrid(-8:0.5:8);,',...
 'r=sqrt(x.^2+y.^2)+eps;,',...
 'z=sin(r)./r;,',...
 'mesh(x,y,z)']);
h2=uimenu(gcf,'label','色彩');
hl2(1)=uimenu(h2,'label','Default',...
'checked','on',...
'callback',...
[...
 'set(hl2,''checked'',''off''),',...
 'set(hl2(1),''checked'',''on''),',...
 'colormap(''default'')']);
hl2(2)=uimenu(h2,'label','spring',...
'callback',...
[...
 'set(hl2,''checked'',''off''),',...
 'set(hl2(2),''checked'',''on''),',...
 'colormap(spring)']);
hl2(3)=uimenu(h2,'label','Summer',...
'callback',...
[...
 'set(hl2,''checked'',''off''),',...
 'set(hl2(3),''checked'',''on''),',...
 'colormap(summer)']);
hl2(4)=uimenu(h2,'label','Autumn',...
'callback',...
[...
 'set(hl2,''checked'',''off''),',...
 'set(hl2(4),''checked'',''on''),',...
 'colormap(autumn)']);
hl2(5)=uimenu(h2,'label','Winter',...
'callback',...
[...
 'set(hl2,''checked'',''off''),',...
 'set(hl2(5),''checked'',''on''),',...
 'colormap(winter)']);
h3=uimenu(gcf,'label','坐标选项');
h31=uimenu(h3,'label','Axis on',...
'callback',...
[...
 'axis on,',...
 'set(h31,''checked'',''on''),',...
 'set(h32,''checked'',''off'')']);
h32=uimenu(h3,'label','Axis off',...
'callback',...
[...
 'axis off,',...
 'set(h32,''checked'',''on''),',...
 'set(h31,''checked'',''off'')']);

宝宝 · 发表于 2004-6-1 18:04:40

<

>实例41：除法计算器<

>h=figure('toolbar','none',...
'position',[200 150 450 250],...
'name','实例41');
h1=uicontrol(gcf,'style','edit',...
'position',[80 200 100 20],...
'HorizontalAlignment','right',...
'callback',['m=get(h1,''string'');,',...
 'a=str2num(m);']);
h2=uicontrol(gcf,'style','edit',...
'HorizontalAlignment','right',...
'position',[80 150 100 20],...
'callback',['n=get(h2,''string'');,',...
 'b=str2num(n);']);
h3=uicontrol(gcf,'style','text',...
'string','被除数',...
'position',[80 230 100 20]);
h4=uicontrol(gcf,'style','edit',...
'position',[80 50 100 20]);
h5=uicontrol(gcf,'style','pushbutton',...
'position',[80 100 100 20],...
'string','=',...
'callback',[...
 'if b==0,',...
 'h7=errordlg(''除数不能为0！'',''error'',''on'');,',...
 'else,',...
 'k=a/b;,',...
 'c=num2str(k);,',...
 'set(h4,''string'',c),',...
 'end']);
h8=uicontrol(gcf,'style','text',...
'string','除数',...
'position',[80 175 100 20]);
h9=uicontrol(gcf,'style','text',...
'string','商',...
'position',[80 75 100 20]);

宝宝 · 发表于 2004-6-1 18:05:28

<

>实例42：单选框的使用<

>h0=figure('toolbar','none',...
'position',[200 150 450 250],...
'name','实例42');
x=0:0.5:2*pi;
y=sin(x);
plot(x,y)
grid on
set(gcf,'toolbar','none')
g=set(gca,'position',[0.2 0.2 0.6 0.6]);
huidiao1=[...
 'grid on,',...
 'set(box_on,''value'',1),',...
 'set(box_off,''value'',0),'];
huidiao2=[...
 'grid off,',...
 'set(box_off,''value'',1),',...
 'set(box_on,''value'',0),'];
box_on=uicontrol(gcf,'style','radio',...
'position',[5 50 50 20],...
'string','grid on',...
'value',1,...
'callback',huidiao1);
box_off=uicontrol(gcf,'style','radio',...
'position',[5 20 50 20],...
'string','grid off',...
'value',0,...
'callback',huidiao2);
title('无线按钮的使用')

宝宝 · 发表于 2004-6-1 18:05:57

<

>实例43：添加环境效果<

>h0=figure('toolbar','none',...
'position',[198 56 450 468],...
'name','实例43');
h1=axes('parent',h0,...
'position',[0.15 0.45 0.7 0.5],...
'visible','off');
sphere
h=findobj('type','surface');
shading interp
axis equal
l=light('position',[0 -2 1]);
k(1)=get(h,'specularstrength');
k(2)=get(h,'diffusestrength');
k(3)=get(h,'specularexponent');
k(4)=get(h,'specularcolorreflectance');
u1=uimenu('parent',h0,...
'label','灯光效果',...
'tag','u1',...
'backgroundcolor',[0.75 0.75 0.75]);
u11=uimenu('parent',u1,...
'label','gouraud',...
'tag','u11',...
'backgroundcolor',[0.75 0.75 0.75],...
'callback',[...
 'set(u11,''checked'',''on'');,',...
 'set(u12,''checked'',''off'');,',...
 'set(h,''facelighting'',''gouraud'')']);
u12=uimenu('parent',u1,...
'label','phong',...
'tag','u12',...
'backgroundcolor',[0.75 0.75 0.75],...
'callback',[...
 'set(u11,''checked'',''off'');,',...
 'set(u12,''checked'',''on'');,',...
 'set(h,''facelighting'',''gouraud'')']);
u2=uimenu('parent',h0,...
'label','背面灯光',...
'tag','u2',...
'backgroundcolor',[0.75 0.75 0.75]);
u21=uimenu('parent',u2,...
'label','reverselit',...
'tag','u21',...
'checked','on',...
'backgroundcolor',[0.75 0.75 0.75],...
'callback',[...
 'set(u21,''checked'',''on'');,',...
 'set(u22,''checked'',''off'');,',...
 'set(h,''backfacelighting'',''reverselit'')']);
u22=uimenu('parent',u2,...
'label','reverselit',...
'tag','u22',...
'backgroundcolor',[0.75 0.75 0.75],...
'callback',[...
 'set(u21,''checked'',''off'');,',...
 'set(u22,''checked'',''on'');,',...
 'set(h,''backfacelighting'',''reverselit'')']);
s1=uicontrol('parent',h0,...
'units','points',...
'style','slider',...
'tag','s1',...
'min',0,...
'max',1,...
'value',k(1),...
'position',[20 80 100 15],...
'callback',[...
 's1value=get(s1,''value'');,',...
 'set(h,''specularstrength'',s1value)']);
t1=uicontrol('parent',h0,...
'units','points',...
'style','text',...
'tag','t1',...
'string','镜面反射强度',...
'position',[20 97 100 15]);
s2=uicontrol('parent',h0,...
'units','points',...
'style','slider',...
'tag','s2',...
'min',0,...
'max',1,...
'value',k(2),...
'position',[20 30 100 15],...
'callback',[...
 's2value=get(s2,''value'');,',...
 'set(h,''diffusestrength'',s2value)']);
t2=uicontrol('parent',h0,...
'units','points',...
'style','text',...
'tag','t2',...
'string','漫反射强度',...
'position',[20 47 100 15]);
s3=uicontrol('parent',h0,...
'units','points',...
'style','slider',...
'tag','s3',...
'min',0.1,...
'max',1,...
'value',k(3)/20,...
'position',[220 80 100 15],...
'callback',[...
 's3value=get(s3,''value'')+eps;,',...
 'set(h,''specularexponent'',20*s3value)']);
t3=uicontrol('parent',h0,...
'units','points',...
'style','text',...
'tag','t3',...
'string','镜面指数',...
'position',[220 97 100 15]);
s4=uicontrol('parent',h0,...
'units','points',...
'style','slider',...
'tag','s4',...
'min',0,...
'max',1,...
'value',k(4),...
'position',[220 30 100 15],...
'callback',[...
 's4value=get(s4,''value'');,',...
 'set(h,''specularcolorreflectance'',s4value)']);
t4=uicontrol('parent',h0,...
'units','points',...
'style','text',...
'tag','t1',...
'string','镜面颜色反射比',...
'position',[220 47 100 15]);
b1=uicontrol('parent',h0,...
'units','points',...
'style','pushbutton',...
'tag','b1',...
'string','关闭',...
'position',[145 45 50 30],...
'callback','close');

宝宝 · 发表于 2004-6-1 18:06:40

<

>实例44：改变坐标轴范围<

>h0=figure('toolbar','none',...
'position',[198 56 408 468],...
'name','实例44');
h1=axes('parent',h0,...
'position',[0.15 0.45 0.7 0.5],...
'visible','on');
e1=uicontrol('parent',h0,...
'style','edit',...
'string',1,...
'position',[50 120 50 20]);
t1=uicontrol('parent',h0,...
'style','text',...
'string','X轴最小值',...
'position',[35 150 80 20]);
e2=uicontrol('parent',h0,...
'style','edit',...
'string',5,...
'position',[50 60 50 20]);
t2=uicontrol('parent',h0,...
'style','text',...
'string','X轴最大值',...
'position',[35 90 80 20]);
e3=uicontrol('parent',h0,...
'style','edit',...
'string',1,...
'position',[150 120 50 20]);
t3=uicontrol('parent',h0,...
'style','text',...
'string','Y轴最小值',...
'position',[135 150 80 20]);
e4=uicontrol('parent',h0,...
'style','edit',...
'string',5,...
'position',[150 60 50 20]);
t4=uicontrol('parent',h0,...
'style','text',...
'string','Y轴最大值',...
'position',[135 90 80 20]);
e5=uicontrol('parent',h0,...
'style','edit',...
'string',20,...
'position',[250 120 50 20]);
t5=uicontrol('parent',h0,...
'style','text',...
'horizontalalignment','left',...
'string','点数',...
'position',[250 150 30 20]);
b1=uicontrol('parent',h0,...
'style','pushbutton',...
'string','绘图',...
'position',[250 60 60 40],...
'callback',[...
 'a=str2num(get(e1,''string''));,',...
 'b=str2num(get(e2,''string''));,',...
 'c=str2num(get(e3,''string''));,',...
 'd=str2num(get(e4,''string''));,',...
 'n=str2num(get(e5,''string''));,',...
 'xgrid=linspace(-abs(a),abs(a),n);,',...
 'ygrid=linspace(-abs(b),abs(b),n);,',...
 '[x,y]=meshgrid(xgrid,ygrid);,',...
 'z=c*sqrt(d-y.*y/b/b-x.*x/a/a);,',...
 'u=1;,',...
 'z1=real(z);,',...
 'for k=2:n-1,',...
 'for j=2:n-1,',...
 'if imag(z(k,j))~=0,',...
 'z1(k,j)=0;,',...
 'end,',...
 'if all(imag(z([k-1:k+1],[j-1:j+1])))~=0,',...
 'z1(k,j)=nan;,',...
 'end,',...
 'end,',...
 'end,',...
 'surf(x,y,z1),',...
 'hold on,',...
 'if u==1,',...
 'z2=-z1;,',...
 'surf(x,y,z2),',...
 'axis([-abs(a),abs(a),-abs(b),abs(b),-abs(c),abs(c)]);,',...
 'end,',...
 'xlabel(''x'');,',...
 'ylabel(''y'');,',...
 'zlabel(''z'');,',...
 'hold off']);
b2=uicontrol('parent',h0,...
'style','pushbutton',...
'string','关闭',...
'position',[150 10 60 20],...
'callback','close');

宝宝 · 发表于 2004-6-1 18:07:10

<

>实例45：简单运算器<

>h1=uicontrol(gcf,'style','radio',...
'string','加',...
'value',1,...
'position',[20 150 40 20],...
'callback',[...
 'k=1;,',...
 'set(h1,''value'',1),',...
 'set(h2,''value'',0),',...
 'set(h3,''value'',0)']);
h2=uicontrol(gcf,'style','radio',...
'string','减',...
'position',[20 110 40 20],...
'callback',[...
 'k=2;,',...
 'set(h2,''value'',1),',...
 'set(h1,''value'',0),',...
 'set(h3,''value'',0)']);
h3=uicontrol(gcf,'style','radio',...
'string','乘',...
'position',[20 70 40 20],...
'callback',[...
 'k=3;,',...
 'set(h3,''value'',1),',...
 'set(h2,''value'',0),',...
 'set(h1,''value'',0)']);
e1=uicontrol(gcf,'style','edit',...
'position',[80 150 100 20]);
e2=uicontrol(gcf,'style','edit',...
'position',[80 110 100 20]);
e3=uicontrol(gcf,'style','edit',...
'position',[80 70 100 20]);
b1=uicontrol(gcf,'style','pushbutton',...
'string','运算',...
'position',[200 150 80 30],...
'callback',[...
 'x=str2num(get(e1,''string''));,',...
 'y=str2num(get(e2,''string''));,',...
 'switch k,',...
 'case 1,',...
 'z=x+y;,',...
 'case 2,',...
 'z=x-y;,',...
 'case 3,',...
 'z=x*y;,',...
 'end,',...
 'set(e3,''string'',num2str(z))']);
b2=uicontrol(gcf,'style','pushbutton',...
'string','退出',...
'position',[200 100 80 30],...
'callback','close');

宝宝 · 发表于 2004-6-1 18:07:40

<

>实例46：曲线色彩的修改<

>h0=figure('toolbar','none',...
'position',[198 56 408 468],...
'name','my second gui');
h1=axes('parent',h0,...
'position',[0.15 0.45 0.7 0.5],...
'visible','on');
x=0:0.1:2*pi;
k=plot(x,sin(x));
xlabel('自变量X');
ylabel('函数值Y');
title('图形色彩改变');
p1=uicontrol('parent',h0,...
'style','pushbutton',...
'backgroundcolor','r',...
'position',[60 100 50 30],...
'callback','set(k,''color'',''r'')');
p2=uicontrol('parent',h0,...
'style','pushbutton',...
'backgroundcolor','g',...
'position',[170 100 50 30],...
'callback','set(k,''color'',''g'')');
p3=uicontrol('parent',h0,...
'style','pushbutton',...
'backgroundcolor','b',...
'position',[280 100 50 30],...
'callback','set(k,''color'',''b'')');
p4=uicontrol('parent',h0,...
'style','pushbutton',...
'backgroundcolor',[1 1 1],...
'fontsize',20,...
'fontweight','demi',...
'string','关闭',...
'position',[150 30 80 60],...
'callback','close');
t1=uicontrol('parent',h0,...
'style','text',...
'string','红色',...
'fontsize',12,...
'fontweight','demi',...
'position',[60 120 50 20]);
t2=uicontrol('parent',h0,...
'style','text',...
'string','绿色',...
'fontsize',12,...
'fontweight','demi',...
'position',[170 120 50 20]);
t3=uicontrol('parent',h0,...
'style','text',...
'string','蓝色',...
'fontsize',12,...
'fontweight','demi',...
'position',[280 120 50 20]);

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