【奠基经典】MATLAB实用程序案例之指定坐标轴范围

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指定坐标轴范围
实例：

h0=figure('toolbar','none',...

'position',[198 56 408 468],...

'name','实例49');

h1=axes('parent',h0,...

'position',[0.15 0.45 0.7 0.5],...

'visible','on');

x=0:0.1:2*pi;

y=sin(x);

plot(x,y);

xlabel('X');

ylabel('Y');

title('坐标轴范围的改变');

h=get(gca,'xlim');

k=get(gca,'ylim');

e1=uicontrol('parent',h0,...

'style','edit',...

'string',eval(num2str(h(1))),...

'horizontalalignment','right',...

'position',[80 120 100 20]);

t1=uicontrol('parent',h0,...

'style','text',...

'string','X轴最小值',...

'position',[100 145 80 20]);

e2=uicontrol('parent',h0,...

'style','edit',...

'string',eval(num2str(h(2))),...

'horizontalalignment','right',...

'position',[80 60 100 20]);

t2=uicontrol('parent',h0,...

'style','text',...

'string','X轴最大值',...

'position',[100 85 80 20]);

e3=uicontrol('parent',h0,...

'style','edit',...

'string',eval(num2str(k(1))),...

'horizontalalignment','right',...

'position',[250 120 100 20]);

t3=uicontrol('parent',h0,...

'style','text',...

'string','Y轴最小值',...

'position',[270 145 80 20]);

e4=uicontrol('parent',h0,...

'style','edit',...

'string',eval(num2str(k(2))),...

'horizontalalignment','right',...

'position',[250 60 100 20]);

t4=uicontrol('parent',h0,...

'style','text',...

'string','X轴最小值',...

'position',[270 85 80 20]);

p1=uicontrol('parent',h0,...

'style','pushbutton',...

'string','设置',...

'position',[105 10 50 30],...

'callback',[...

'a=str2num(get(e1,''string''));,',...

'b=str2num(get(e2,''string''));,',...

'c=str2num(get(e3,''string''));,',...

'd=str2num(get(e4,''string''));,',...

'axis([a b c d]),',...

'drawnow']);

p2=uicontrol('parent',h0,...

'style','pushbutton',...

'string','关闭',...

'position',[275 10 50 30],...

'callback','close');

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