Re: [matplotlib-devel] system fonts not found
On Thu, Sep 25, 2008 at 9:31 AM, Darren Dale <[EMAIL PROTECTED]> wrote:
> I noticed this morning that my Times and Palatino system fonts are not being
> found anymore. I removed my fontManager.cache and ran my script with
> verbose=debug, and it looks like creatFontDict found them, but then findfont
> cant:
I recently fixed another bug related to font finding when an explicit
file name was passed -- I wonder if I broke a normal use case. It's a
simple change shown in the diff below. Could you manually revert on
your end and see if it makes a difference. If so, I'll have to find
another solution to the problem I was fixing.
[EMAIL PROTECTED]:mpl> svn diff lib/matplotlib/font_manager.py -r6097:6098
Index: lib/matplotlib/font_manager.py
===
--- lib/matplotlib/font_manager.py (revision 6097)
+++ lib/matplotlib/font_manager.py (revision 6098)
@@ -955,7 +955,7 @@
fname = prop.get_file()
if fname is not None:
verbose.report('findfont returning %s'%fname, 'debug')
-return fname[0]
+return fname
if fontext == 'afm':
fontdict = self.afmdict
-
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Re: [matplotlib-devel] system fonts not found
On Thursday 25 September 2008 11:53:04 am John Hunter wrote:
> On Thu, Sep 25, 2008 at 9:31 AM, Darren Dale <[EMAIL PROTECTED]> wrote:
> > I noticed this morning that my Times and Palatino system fonts are not
> > being found anymore. I removed my fontManager.cache and ran my script
> > with verbose=debug, and it looks like creatFontDict found them, but then
> > findfont cant:
>
> I recently fixed another bug related to font finding when an explicit
> file name was passed -- I wonder if I broke a normal use case. It's a
> simple change shown in the diff below. Could you manually revert on
> your end and see if it makes a difference. If so, I'll have to find
> another solution to the problem I was fixing.
>
>
> [EMAIL PROTECTED]:mpl> svn diff lib/matplotlib/font_manager.py -r6097:6098
> Index: lib/matplotlib/font_manager.py
> ===
> --- lib/matplotlib/font_manager.py (revision 6097)
> +++ lib/matplotlib/font_manager.py (revision 6098)
> @@ -955,7 +955,7 @@
> fname = prop.get_file()
> if fname is not None:
> verbose.report('findfont returning %s'%fname, 'debug')
> -return fname[0]
> +return fname
>
> if fontext == 'afm':
> fontdict = self.afmdict
I tried this, but it didnt change anything. I ended up checking the values of
the keys in the fontdict, and noticed that rather than "Times" I needed to
use "Times New Roman", for example. Maybe this is a change in my font
packages, or maybe my configuration was always out of whack and I hadnt
noticed because I was using usetex up until now, in which case I apologize
for noise.
-
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Re: [matplotlib-devel] spy: ignore zero values in sparse matrix
On Fri, Sep 26, 2008 at 2:36 PM, Tony S Yu <[EMAIL PROTECTED]> wrote: > I guess you could plot sparse all-zero matrices with image mode. My only > hesitation is that sparse arrays tend to be very large and (I imagine) this > would lead to very slow performance. I assumed this was the reason image > mode wasn't adapted to use sparse arrays. > > Actually, now that I think about it: you could plot a trivially small image > and just adjust the coordinates so that they correspond to the original > matrix shape. Is this what you were thinking? This is something I considered, but I was thinking less about the implementation and more about the functionality. I don't want to raise an exception unless the input doesn't make sense. I would rather the user start at a boring image and figure out why it is blank that deal with an exception. > I should note that a dense zero array also fails to plot with spy *if marker > mode is used*. Can you fix this along with spy2? JDH - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ ___ Matplotlib-devel mailing list Matplotlib-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-devel
Re: [matplotlib-devel] spy: ignore zero values in sparse matrix
On Sep 26, 2008, at 5:01 PM, Eric Firing wrote:
> Also, if an image cannot be resolved by the output device, info is
> lost--one might not see anything at a location where there actually
> is a value--whereas with markers, a marker will always show up, and
> the only problem is that one can't necessarily distinguish a single
> point from a cluster.
>
> The real problem with all-zero values is that plot can't handle
> "plot([],[])". One can work around this by putting in bogus values
> to plot a single point, saving the line, and then setting the line
> data to empty; or, better, by not using the high-level plot command,
> but by generating the Line2D object and adding it to the axes. The
> Line2D initializer is happy with empty x and y sequences. I think if
> you use this approach it will kill two bugs (failure on all-zeros
> with sparse and full arrays) with one very simple stone.
>
> Eric
Thanks for the tip Eric. Below is a patch for spy that implements
Eric's suggestion. This patch seems to work for a couple simple tests
on my end: sparse and dense arrays with non-zero and all-zero values.
A couple of notes:
* the call to `add_artist` isn't needed to show the correct plot, but
it may be helpful for debugging.
* the docstring for `spy` suggests that a Line2D instance is returned,
but `spy` currently returns a list with a Line2D instance. I set all-
zero arrays to return a list also, for consistency.
-Tony
Index: matplotlib/lib/matplotlib/axes.py
===
--- matplotlib/lib/matplotlib/axes.py (revision 6123)
+++ matplotlib/lib/matplotlib/axes.py (working copy)
@@ -6723,9 +6723,9 @@
else:
if hasattr(Z, 'tocoo'):
c = Z.tocoo()
-y = c.row
-x = c.col
-z = c.data
+nonzero = c.data != 0.
+y = c.row[nonzero]
+x = c.col[nonzero]
else:
Z = np.asarray(Z)
if precision is None: mask = Z!=0.
@@ -6733,8 +6733,12 @@
y,x,z = mlab.get_xyz_where(mask, mask)
if marker is None: marker = 's'
if markersize is None: markersize = 10
-lines = self.plot(x, y, linestyle='None',
- marker=marker, markersize=markersize,
**kwargs)
+if len(x) == 0:
+lines = [mlines.Line2D([], [])]
+self.add_artist(lines[0])
+else:
+lines = self.plot(x, y, linestyle='None',
+ marker=marker, markersize=markersize,
**kwargs)
nr, nc = Z.shape
self.set_xlim(xmin=-0.5, xmax=nc-0.5)
self.set_ylim(ymin=nr-0.5, ymax=-0.5)
Index: matplotlib/examples/pylab_examples/masked_demo.py
===
--- matplotlib/examples/pylab_examples/masked_demo.py (revision 6123)
+++ matplotlib/examples/pylab_examples/masked_demo.py (working copy)
@@ -1,4 +1,4 @@
-#!/bin/env python
+#!/usr/bin/env python
'''
Plot lines with points masked out.
Index: matplotlib/examples/misc/rec_groupby_demo.py
===
--- matplotlib/examples/misc/rec_groupby_demo.py(revision 6123)
+++ matplotlib/examples/misc/rec_groupby_demo.py(working copy)
@@ -2,7 +2,7 @@
import matplotlib.mlab as mlab
-r = mlab.csv2rec('data/aapl.csv')
+r = mlab.csv2rec('../data/aapl.csv')
r.sort()
def daily_return(prices):
-
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Re: [matplotlib-devel] spy: ignore zero values in sparse matrix
Tony S Yu wrote: > Hi Eric, > > Sorry for the late reply. > > On Sep 27, 2008, at 8:56 PM, Eric Firing wrote: > >> Actually, I think the most logical thing would be to let the default >> None give the old behavior, and require precision=0 to get the new >> behavior. What do you think? Is it OK if I make this change? It >> is more consistent with the old behavior. > > I'm ambivalent about this change. On one hand, I think it makes a lot > more sense to have None give the old behavior and precision=0 to > ignore zero values in the sparse array (then precision would be > consistent for finite values and for zero). > > On the other hand, I think ignoring zero values should be the default > behavior for sparse arrays (although, I definitely agree there should > be the option to plot all assigned values). > > Would it be possible to make the change you suggest and also change > the default precision value to 0? (see diff below) This change would > also allow you to remove a lot of the special handling for > precision=None, since precision=0 gives the same result (I didn't go > this far in the diff below). Good point. I made that change, but then made precision='present' be the value for sparse arrays to show all filled cells. precision=None is deprecated, but converted to 0. Eric - This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ ___ Matplotlib-devel mailing list Matplotlib-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-devel
Re: [matplotlib-devel] system fonts not found
John,
As you may know, you're reverting the change Michael made sometime
ago. Michael said it is not a bug, but rather intended.
http://sourceforge.net/mailarchive/message.php?msg_id=6e8d907b0809031201p4bb0701eo23b3d294797a8766%40mail.gmail.com
So, I would appreciate if you reiterate this with Micheal before I
change back my scripts again.
Regards,
-JJ
On Thu, Sep 25, 2008 at 11:53 AM, John Hunter <[EMAIL PROTECTED]> wrote:
> On Thu, Sep 25, 2008 at 9:31 AM, Darren Dale <[EMAIL PROTECTED]> wrote:
>> I noticed this morning that my Times and Palatino system fonts are not being
>> found anymore. I removed my fontManager.cache and ran my script with
>> verbose=debug, and it looks like creatFontDict found them, but then findfont
>> cant:
>
> I recently fixed another bug related to font finding when an explicit
> file name was passed -- I wonder if I broke a normal use case. It's a
> simple change shown in the diff below. Could you manually revert on
> your end and see if it makes a difference. If so, I'll have to find
> another solution to the problem I was fixing.
>
>
> [EMAIL PROTECTED]:mpl> svn diff lib/matplotlib/font_manager.py -r6097:6098
> Index: lib/matplotlib/font_manager.py
> ===
> --- lib/matplotlib/font_manager.py (revision 6097)
> +++ lib/matplotlib/font_manager.py (revision 6098)
> @@ -955,7 +955,7 @@
> fname = prop.get_file()
> if fname is not None:
> verbose.report('findfont returning %s'%fname, 'debug')
> -return fname[0]
> +return fname
>
> if fontext == 'afm':
> fontdict = self.afmdict
>
> -
> This SF.Net email is sponsored by the Moblin Your Move Developer's challenge
> Build the coolest Linux based applications with Moblin SDK & win great prizes
> Grand prize is a trip for two to an Open Source event anywhere in the world
> http://moblin-contest.org/redirect.php?banner_id=100&url=/
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-
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