On Sun, Nov 16, 2008 at 11:55 AM, Gabor Kalman <[EMAIL PROTECTED]> wrote: > I have a simple Rectangle drawn on Canvas. For example: > > from Tkinter import * > # > class Test(Frame): > #------------------------------------------------------------- > def __init__(self, master=None): > Frame.__init__(self, master) > Pack.config(self) > self.createWidgets() > #------------------------------------------------------------ > def createWidgets(self): > self.draw = Canvas(self, width=600, height=400) > self.draw.create_rectangle(100, 100, 200, 150, fill="blue") > self.draw.pack(side=LEFT) > # > test = Test() > test.mainloop() > > Question: > ======= > > How can I retrieve the color on the Canvas AFTER the Rectangle is drawn, > say, at the coordinate (110,110) ??? >
You will need to think a bit different to solve this. Each thing in your Canvas has an id, and you can query any id to discover things about it, like its fill color. So your problem is how to find the id of the item that is positioned in the point (110, 110). For that you use the method find_overlapping which is part of Canvas. rect_id = self.draw.find_overlapping(110, 110, 110, 110)[0] print self.draw.itemcget(rect_id, 'fill') find_overlapping returns a tuple of all items it found in the specified rectangle (x1, y1, x2, y2) so I'm using just the first one (in your example there will be just one). There are variations of the above sample for different questions, so if it doesn't solve your question entirely reconsider detailing it more. > P.S. > > Of course if the Rectangle would be an Image (!!!) I could do it with: > > from PIL import Image > im = Image.open"Rectangle.jpg") > x=110 > y=110 > pix = im.load() > print pix[x, y] > > But that's NOT what I want. > > > > _______________________________________________ > Tkinter-discuss mailing list > Tkinter-discuss@python.org > http://mail.python.org/mailman/listinfo/tkinter-discuss > > -- -- Guilherme H. Polo Goncalves _______________________________________________ Tkinter-discuss mailing list Tkinter-discuss@python.org http://mail.python.org/mailman/listinfo/tkinter-discuss
