think for John McMonagle only one sentence is wrong ,i revise it :
self.xsqueen=[50+4*i for i in range(0,self.pairs)] it is ok,now ^_^ 在 2011年9月3日 下午5:31,contro opinion <contropin...@gmail.com>写道: > i have written a program in tkinter to draw stock graph,there are two > strange thing i can't understand > the attachment is 'AAU' data file(attachment 1).when you download it > ,please save it in /tmp/AAU > there is a scrolled canvas in it , > > 1.strang long line,please see my attachment. > i have see my data ,my formulation ,no wrong,but the line is so > long!! > 2.there is no motion event reaction in the right of canvas,only > motion event reaction in the left of canvas. > 3.i have round function ,but the output is still more fractions than > 2. > > > > > > ------------------ 原始邮件 ------------------ > *发件人:* "John McMonagle"<jmcmona...@velseis.com>; > *发送时间:* 2011年9月2日(星期五) 中午1:48 > *收件人:* "1248283536"<1248283...@qq.com>; > *抄送:* "Tkinter-discuss"<tkinter-discuss@python.org>; > *主题:* Re: [Tkinter-discuss] tkinter and cursor > > On 02/09/11 13:59, 守株待兔 wrote: > > > > > you can get a figure with the program, when you move mouse on the > canvas (figure),you can see the coordinate on the right corner , i want to > make it in tkinter,there is no "move click in the canvas" event in > tkinter,how to make it in tkinter?? > > > > You can use the "<Motion>" event. You also should be converting the > event.x and event.y to canvas coordinates. This is especially important > when your canvas also includes scrollbars. > > > So, using your code from previous posts, from the myprint function onwards, > > > > def myprint(event): > # convert the event coordinates to canvas coordinates > x = canvas.canvasx(event.x) > y = canvas.canvasy(event.y) > > # find the poistion in the top right corner of your canvas widget > # less a little bit so as to see the displayed text > cx = canvas.winfo_width() - 10 > cy = 10 > > # delete previous displayed text > canvas.delete('coords') > > # display the coordinates > canvas.create_text(cx,cy,anchor=E, text='%d,%d' % (x,y), tags='coords') > > canvas.bind("<Motion>", myprint) > > root.mainloop() > > > This will display the canvas coordinate in the top right corner of the > canvas widget. > > Suggested reading on Canvas: > > http://effbot.org/tkinterbook/canvas.htm > > Suggested reading on events: > > http://effbot.org/tkinterbook/tkinter-events-and-bindings.htm > > Regarsd, > > John > > -- > This message has been scanned for viruses and > dangerous content by MailScanner, and is > believed to be clean.
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