Bugs item #1492588, was opened at 2006-05-21 21:07
Message generated for change (Comment added) made by wobsta
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Category: None
Group: None
>Status: Closed
>Resolution: Invalid
Priority: 5
Submitted By: Dominic Ford (dcf21)
Assigned to: Nobody/Anonymous (nobody)
Summary: graph.pos method seems broken
Initial Comment:
The attached code snippet works fine with PyX 0.7.1,
but fails with PyX 0.8.1:
------
Traceback (most recent call last):
File "pyx_pos.py", line 19, in ?
x,y = g.pos(x=0,y=0)
File
"/usr/local/lib/python2.4/site-packages/pyx/graph/graph.py",
line 169, in pos
return self.xpos + xaxis.convert(x)*self.width,
self.ypos + yaxis.convert(y)*self.height
File
"/usr/local/lib/python2.4/site-packages/pyx/graph/axis/axis.py",
line 472, in convert
assert self.canvas is not None, self.errorname
AssertionError: x
------
I believe the cause of this is that the syntax of the
method "convert" has changed in the file
graph/axis/axis.py, but the pos method in the file
graph/graph.py has not been updated to reflect this change.
----------------------------------------------------------------------
>Comment By: André Wobst (wobsta)
Date: 2006-05-22 11:46
Message:
Logged In: YES
user_id=405853
Sorry, that's not a bug but a problem due to the anchored axes as introduced
in PyX 0.8 internally. You need to access the axes by g.axes["x"] and
g.axes["y"], since only by that they have access to the graphs internal data
(like the axes ranges ... you can use the original axis instances multiple
times
now). Adjusted the manual in changeset:2769.
----------------------------------------------------------------------
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