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Created on 2006-07-25 12:52 by naturemage, last changed 2022-04-11 14:56 by admin. This issue is now closed.
| Files | ||||
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| File name | Uploaded | Description | Edit | |
| forward.JPG | naturemage, 2006-07-25 12:52 | forward display | ||
| Messages (4) | |||
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| msg29277 - (view) | Author: NatureMage (naturemage) | Date: 2006-07-25 12:52 | |
Use forward() in the turtle module to draw
horizontally from right to left, if the starting
position's x and y coordinates are different from the
origin, the line may not appear straight. But if the
tk window is redrawn, for example minimized and then
restored, the line will be properly displayed.
The following code will reproduce this issue:
# start
from turtle import *
from Tkinter import *
color("maroon")
up()
goto(30, 30)
down()
left(180)
forward(100)
mainloop()
# end
I checked the source of the turtle module, but failed
to figure out the reason. The attatchment contains a
snapshot of what happens.
My environment:
Python version: 2.4.3
OS: Windows XP sp2
Video Card: Nvidia 6600
CPU: P4 2.66G Hz
Mem: 1G
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| msg84500 - (view) | Author: Daniel Diniz (ajaksu2) *  |
Date: 2009-03-30 04:35 | |
Cannot confirm on Linux/trunk. |
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| msg114808 - (view) | Author: Mark Lawrence (BreamoreBoy) * | Date: 2010-08-24 19:49 | |
I can't reproduce this with 3.1 on Windows Vista so can this be closed? |
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| msg119147 - (view) | Author: Alexander Belopolsky (belopolsky) *  |
Date: 2010-10-19 17:36 | |
I cannot reproduce this on OSX. I have verified that the turtle position is correct (-70.00,30.00) after the steps reported by OP. This must be out of date. |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:56:19 | admin | set | github: 43718 |
| 2010-10-19 17:36:54 | belopolsky | set | status: open -> closed nosy: + belopolsky messages: + msg119147 resolution: out of date stage: test needed -> resolved |
| 2010-08-24 19:49:31 | BreamoreBoy | set | nosy:
+ BreamoreBoy messages: + msg114808 |
| 2009-03-30 04:35:30 | ajaksu2 | set | priority: normal -> low type: behavior versions: + Python 2.6, - Python 2.4 nosy: + ajaksu2 messages: + msg84500 stage: test needed |
| 2006-07-25 12:52:08 | naturemage | create | |