#5812: [with patch, needs work?] option zorder has no effect for point() and
polygon()
----------------------+-----------------------------------------------------
Reporter: whuss | Owner: whuss
Type: defect | Status: new
Priority: minor | Milestone: sage-4.0
Component: graphics | Keywords:
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Comment(by kcrisman):
Seems to work as advertised - a nice addition! One question: if I
manually set zorder, usually what you expect to happen happens. But
doesn't the order in which the objects are created matter otherwise, if
everything has the same zorder? For instance:
{{{
sage: p = polygon([(0,0),(0,1),(1,1)])
sage: p+= polygon([(0,0),(0,2),(2,2)],rgbcolor='red')
sage: p.show()
}}}
gives only a red triangle, while
{{{
sage: p = polygon([(0,0),(0,2),(2,2)],rgbcolor='red')
sage: p+= polygon([(0,0),(0,1),(1,1)])
sage: p.show()
}}}
shows the blue triangle on top of the red one. But
{{{
sage: g = polygon([(0,0), (0,1), (1,1), (1,0)], rgbcolor = 'red', zorder =
0)
sage: g += point((1,1), rgbcolor = 'green', pointsize = 1000)
sage: g.show()
}}}
and
{{{
sage: g = point((1,1), rgbcolor = 'green', pointsize = 1000)
sage: g += polygon([(0,0), (0,1), (1,1), (1,0)], rgbcolor = 'red', zorder
= 0)
sage: g.show()
}}}
give the same thing, even though they should also have the same zorder at
this point, if I understand the code correctly. Or does the polygon
somehow take precedence naturally in matplotlib?
REVIEW
Positive review of fixing the example given. With regards to the comments
above:
If this is a bug or design in matplotlib, positive review.
If it's possible to fix this in one of these files so that the order plots
are added behaves consistently, needs work.
If it's not possible to do that within these files, but it needs to be
done in plot.py or show or something, positive review but please open
another ticket.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/5812#comment:2>
Sage <http://sagemath.org/>
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