On Saturday, March 9, 2013 4:46:40 PM UTC-6, olsr....@gmail.com wrote:
> how to get id of a line from his coordonée in tkinter python?
Each time you create a "canvas item", be it a rectangle, line, circle, or
whatever..., the id of that object is returned as an integer. All you have to
do is save the id into a variable.
rectID = canvas.create_rectangle(...)
Now you can pass that unique id into many of the methods that exist for "canvas
items".
canvas.delete(rectID)
canvas.coords(rectID)
canvas.bbox(rectID)
*Sarcastic Sam quipped*: """Rick, not everybody can be as smart as you! What if
we forgot to save the return value into a variable? Besides, you cannot expect
us to create a variable to hold *every single* id of *every single* canvas
object; that would be ridiculous!"""
Indeed it would Sam. Besides, integer tags are not easy to remember, and they
are created by the canvas object (which is out of your control).
But before you throw the computer out the window, be aware that the canvas
allows you to tag each "canvas item" by passing one or more strings, using the
"tags=..." argument, into the "canvas.create_X(args)" methods.
py> canvas.create_rectangle(0,0,10,10, fill='red', tags='red_rect')
py> canvas.coords('red_rect')
(0,0,10,10)
PS: Hopefully you solved that other issue.
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