#9740: matrix plot is upside down and should wrap more matplotlib options
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Reporter: jason | Owner: jason, was
Type: enhancement | Status: needs_review
Priority: major | Milestone: sage-4.5.3
Component: graphics | Keywords:
Author: Jason Grout | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Comment(by kcrisman):
> matrix_plot(identity_matrix(100))
Looks fine, diagonal is from upper left to lower right, like the matrix. 0
(lowest input) is black, 1 (highest input) is white, I think this is as
usual. With cmap='jet' I get something I like :) What do *you* get for
this one?
> matrix_plot(identity_matrix(100, sparse=True))
Yikes! Two issues. First, it is definitely flipped. Second, what's up
with the colors? I get white for the off-diagonal zeros and blue for the
diagonal. My diagnosis: something going on with all that special code for
sparse matrices.
And now I see what you mean about the axes showing up. I thought that was
just part of the frame because my matrices tend to have blue or black
around the edges, since the values are one! Good catch with making
axes=False in the future.
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/9740#comment:8>
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