Basics of MATLAB and Beyond

The two inner frames are labeled by placing text style uicontrols with thestrings Personal Details and Tax Details at appropriate positions.Too many frames clutter the GUI. It is often better to use space betweengroups of controls to divide them into logical groups.SliderSliders are designed to allow input of a value between two limits. Youinput a value by clicking on the central bar and dragging it; by clickinganywhere between the central bar and the end of the slider, resultingin a big jump; or by clicking on the arrows at the ends of the slider,resulting in a little jump. Fiddle with the following slider to see how itbehaves:h = uicontrol(’style’,’slider’);set(h,’pos’,[50 200 450 40])set(h,’callback’,’disp(get(h,’’value’’))’)This slider has its callback property set so as to display the value of theslider in the command window. The callback is executed when (1) yourelease the central bar, (2) you click on the blank area, or (3) you clickon the arrow.You may want to display the value of a slider in an edit box, or to usethe value typed into an edit box to alter the position of the slider. Todo this you have to get an edit box and a slider to talk to each other toreveal their properties. The edit box must have a callback that tells theslider its string property, and the slider must have a callback that tellsthe edit box its value property. The following piece of code achievesthis effect:clfhsl = uicontrol(’Position’,[200 260 200 20], ...’Style’,’slider’,’Value’,0.5,...’CallBack’,...’set(hed,’’String’’,num2str(get(hsl,’’value’’),2))’);hed = uicontrol(’BackgroundColor’,[1 1 1], ...’Position’,[200 240 70 20], ...c○ 2000 by CRC Press LLC