turtle.setworldcoordinates()

turtle.setworldcoordinates(llx, lly, urx, ury)

Parameters:	llx – a number, x-coordinate of lower left corner of canvas lly – a number, y-coordinate of lower left corner of canvas urx – a number, x-coordinate of upper right corner of canvas ury – a number, y-coordinate of upper right corner of canvas

Set up user-defined coordinate system and switch to mode “world” if necessary. This performs a screen.reset(). If mode “world” is already active, all drawings are redrawn according to the new coordinates.

ATTENTION: in user-defined coordinate systems angles may appear distorted.

>>> screen.reset()
>>> screen.setworldcoordinates(-50,-7.5,50,7.5)
>>> for _ in range(72):
...     left(10)
...
>>> for _ in range(8):
...     left(45); fd(2)   # a regular octagon

Links:

https://docs.python.org/3.5/library/turtle.html#turtle.setworldcoordinates

doc_python

2016-10-07 17:45:41

Comments