#16570: Animate example looks broken
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Reporter: gagern | Owner:
Type: defect | Status: needs_work
Priority: minor | Milestone: sage-6.4
Component: graphics | Resolution:
Keywords: | Merged in:
Authors: Martin von Gagern | Reviewers: Jakob Kroeker
Report Upstream: N/A | Work issues:
Branch: | Commit:
u/gagern/ticket/16570 | 050c3b8afb736b20e46feb85f9273fba35336688
Dependencies: | Stopgaps:
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Changes (by jakobkroeker):
* status: needs_review => needs_work
* reviewer: => Jakob Kroeker
Comment:
good, after I updated the ffmpeg 0.6.5 manually on my machine (Scientific
Linux 6.5), the doctests passed!
Otherwise ffmpeg 0.6.5. complains about the 'long' parameter argument.
This might be a different new(?) issue, since several universities have SL
installations. (SL packages are dated)
All fixed examples worked as expected. However, there are two other broken
animate examples;
would you mind to fix them in this ticket? (see below)
What also should be changed (maybe also in this ticket, since it is a
pretty small change),
is storing the name of the temporary directory in variable named 'dir'.
'dir' is a keyword/a method
and should not be overwritten
{{{
############# # problem with the varying axis range #############
#################### line 417
a = animate([plot(x^2 + n) for n in range(4)])
a.show()
#################### line 449
E = EllipticCurve('37a')
v = [E.change_ring(GF(p)).plot(pointsize=30) for p in [97, 101, 103, 107]]
a = animate(v, xmin=0, ymin=0)
a
a.show() # optional -- ImageMagick
}}}
There is also one example with unreadable axis labels:
{{{
############## problem with the axis labels - unreadable #############
############# line 294
a = animate([circle((i,0),1) for i in srange(0,2,0.4)],
xmin=0, ymin=-1, xmax=3, ymax=1, figsize=[2,1])
a.show() # optional -- ImageMagick
b = animate([circle((0,i),1,hue=0) for i in srange(0,2,0.4)],
xmin=0, ymin=-1, xmax=1, ymax=3, figsize=[1,2])
b.show() # optional -- ImageMagick
}}}
and two examples with unfortunate axis range, but that is probably
discussable:
{{{
############# image section not optimal: #############
############# line 326
a = animate([circle((i,0),1,thickness=20*i) for i in srange(0,2,0.4)],
xmin=0, ymin=-1, xmax=3, ymax=1, figsize=[2,1],
axes=False)
a.show() # optional -- ImageMagick
b = animate([circle((0,i),1,hue=0,thickness=20*i) for i in
srange(0,2,0.4)],
xmin=0, ymin=-1, xmax=1, ymax=3, figsize=[1,2],
axes=False)
b.show() # optional -- ImageMagick
p = a*b # indirect doctest
len(a), len(b)
len(p)
(a*b).show() # optional -- ImageMagick
#################### line 352
a = animate([circle((i,0),1,thickness=20*i) for i in srange(0,2,0.4)],
xmin=0, ymin=-1, xmax=3, ymax=1, figsize=[2,1], axes=False)
a.show()
}}}
--
Ticket URL: <http://trac.sagemath.org/ticket/16570#comment:17>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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