[MATLAB图像处理] 请高手看一下这个程序，谢谢！ - MATLAB爱好者论坛-LabFans.com

huo951 · 2009-06-07, 14:47

x=0：pi/100:2*pi;
y=2*exp(-0.5*x).*sin(2*pi*x);
hl=plot(x,y);
hc=uicontextmenu;
hls=uimenu(hc,'Label','线型');
hlw=uimenu(hc,'Label','线宽');
uimenu(hls,'Label','虚线','Call','set(hl,"LineStyle",":");');
uimenu(hls,'Label','实线','Call','set(hl,"LineStyle","-");');
uimenu(hlw,'Label','加宽','Call','set(hl,"LineWidth",2);');
uimenu(hlw,'Label','变细','Call','set(hl,"LineWidth",0.5);');
set(hl,'UIContextMenu',hc);
我介绍一下这个程序，就是plot会画出一条线，在那条线上点右键就能选择加宽或者实线虚线，可我在命令窗口运行了以后，出现了一下错误：??? Error: The input character is not valid in MATLAB statements or expressions.

??? Error while evaluating uimenu Callback.
请高手解释一下！

barqcf1986 · 2009-06-07, 15:32

x=0：pi/100:2*pi;
y=2*exp(-0.5*x).*sin(2*pi*x);
hl=plot(x,y);
hc=uicontextmenu;
hls=uimenu(hc,'Label','线型');
hlw=uimenu(hc,'Label','线宽');
uimenu(hls,'Label','虚线','Call','set(hl,''LineStyle'','':'');');
uimenu(hls,'Label','实线','Call','set(hl,''LineStyle'',''-'');');
uimenu(hlw,'Label','加宽','Call','set(hl,''LineWidth'',2);');
uimenu(hlw,'Label','变细','Call','set(hl,''LineWidth'',0.5);');
set(hl,'UIContextMenu',hc);
将所有的双引号都改成两个单引号就可以了。

2009-06-07, 14:47	#1
huo951 初级会员注册日期: 2009-05-31 帖子: 3 声望力: 0	请高手看一下这个程序，谢谢！ x=0：pi/100:2pi; y=2exp(-0.5x).sin(2pix); hl=plot(x,y); hc=uicontextmenu; hls=uimenu(hc,'Label','线型'); hlw=uimenu(hc,'Label','线宽'); uimenu(hls,'Label','虚线','Call','set(hl,"LineStyle",":");'); uimenu(hls,'Label','实线','Call','set(hl,"LineStyle","-");'); uimenu(hlw,'Label','加宽','Call','set(hl,"LineWidth",2);'); uimenu(hlw,'Label','变细','Call','set(hl,"LineWidth",0.5);'); set(hl,'UIContextMenu',hc); 我介绍一下这个程序，就是plot会画出一条线，在那条线上点右键就能选择加宽或者实线虚线，可我在命令窗口运行了以后，出现了一下错误：??? Error: The input character is not valid in MATLAB statements or expressions. ??? Error while evaluating uimenu Callback. 请高手解释一下！

2009-06-07, 15:32	#2
barqcf1986 初级会员注册日期: 2009-03-16 年龄: 38 帖子: 8 声望力: 0	回复: 请高手看一下这个程序，谢谢！ x=0：pi/100:2pi; y=2exp(-0.5x).sin(2pix); hl=plot(x,y); hc=uicontextmenu; hls=uimenu(hc,'Label','线型'); hlw=uimenu(hc,'Label','线宽'); uimenu(hls,'Label','虚线','Call','set(hl,''LineStyle'','':'');'); uimenu(hls,'Label','实线','Call','set(hl,''LineStyle'',''-'');'); uimenu(hlw,'Label','加宽','Call','set(hl,''LineWidth'',2);'); uimenu(hlw,'Label','变细','Call','set(hl,''LineWidth'',0.5);'); set(hl,'UIContextMenu',hc); 将所有的双引号都改成两个单引号就可以了。