第五讲 GUI的设计 matlab入门PPT.pptVIP

第五讲 图形用户界面(GUI) 设计;;菜单设计 控件设计 用户界面设计工具;5.1 菜单设计;例5.1 建立“图形演示系统”菜单。菜单条中含有3个菜单项：Plot、Option和Quit。Plot中有Sine Wave和Cosine Wave两个子菜单项，分别控制在本图形窗口画出正弦和余弦曲线。Option菜单项的内容包括：Grid on和Grid off控制给坐标轴加网格线，Box on和Box off控制给坐标轴加边框，而且这4项只有在画有曲线时才是可选的，Figure Color控制图形窗口背景颜色。Quit控制是否退出系统。; ;5.2 控件设计; ;例5.3 建立数制转换对话框。在左边输入一个十进制整数和2～16之间的数，单击“转换”按钮能在右边得到十进制数所对应的2～16进制字符串，单击“退出”按钮退出对话框。 ;hf=figure(Color,[0,1,1],Position,[100,200,400,200],... Name,数制转换,NumberTitle,off,MenuBar,none); uicontrol(hf,Style,Text, Units,normalized,... Position,[0.05,0.8,0.45,0.1],Horizontal,center,... String,输 入 框,Back,[0,1,1]); uicontrol(hf,Style,Text,Position,[0.5,0.8,0.45,0.1],... Units,normalized,Horizontal,center,... String,输 出 框,Back,[0,1,1]); uicontrol(hf,Style,Frame,Position,[0.04,0.33,0.45,0.45],... Units,normalized,Back,[1,1,0]); uicontrol(hf,Style,Text,Position,[0.05,0.6,0.25,0.1],... Units,normalized,Horizontal,center,... String,十进制数,Back,[1,1,0]); uicontrol(hf,Style,Text,Position,[0.05,0.4,0.25,0.1],... Units,normalized,Horizontal,center,... String,2～16进制,Back,[1,1,0]); he1=uicontrol(hf,Style,Edit,Position,[0.25,0.6,0.2,0.1],... Units,normalized,Back,[0,1,0]); he2=uicontrol(hf,Style,Edit,Position,[0.25,0.4,0.2,0.1],... Units,normalized,Back,[0,1,0]); uicontrol(hf,Style,Frame,Position,[0.52,0.33,0.45,0.45],... Units,normalized,Back,[1,1,0]); ht=uicontrol(hf,Style,Text,Position,[0.6,0.5,0.3,0.1],... Units,normalized,Horizontal,center,Back,[0,1,0]); COMM=[n=str2num(get(he1,String));,b=str2num(get(he2,String));,... dec=trdec(n,b);,set(ht,string,dec);]; uicontrol(hf,Style,Push,Position,[0.18,0.1,0.2,0.12],... String,转 换,Units,normalized,Call,COMM); uicontrol(hf,Style,Push,Position,[0.65,0.1,0.2,0.12],... String,退 出,Units,normalized,Call,close(hf));;程序调用了trdec.m函数文件，该函数的作用是将任意十进制整数转换为2~16进制字符串。trdec.m函数文件如下： function dec=trdec(n,b) ch1=