matplotlib-users Mailing List for matplotlib (Page 9)

On 12/1/11 7:34 AM, Bruce Ford wrote:
> I have a basemap figure where data is placed atop, which can be in any 
> number of differing projections. However, when I plot a line over it 
> using pyplot.plot, the line doesn't show unless I'm using 
> the cylindrical equidistant projection.
>
> From what I gather this is a limitation of the plot command. Can 
> anyone confirm this? Is this a limitation in that the 'cyl' 
> projection is assumed by pyplot.plot?
>
> I saw a post that mentioned that a projection kwarg would not be added 
> to the plot command. Does this mean that the plot command will 
> realize the projection of the gca basemap?
>
> Bruce
>
> ---------------------------------------
> Bruce W. Ford
Bruce: Did you convert the coordinates of the data you're plotting with 
pyplot.plot to map projection coordinates (by passing the lat/lon values 
to the Basemap instance)?
-Jeff

On Thu, Dec 1, 2011 at 10:14 AM, Benjamin Root <ben...@ou...> wrote:
> On Thu, Dec 1, 2011 at 9:29 AM, Neilen Marais <nm...@sk...> wrote:
>
>> https://github.com/matplotlib/matplotlib/commit
>> /98ee4e991ae142622f3814db193b75236eb77cea#src/ft2font.cpp
>
>
> Hmm, strange...
>
> It isn't even in master right now. The last changes to it were by Michael
> Droettboom (commit 6b643862) in June of 2010, but the commit you are
> pointing to was done in March of 2011... this needs more investigating.
>
> Ben Root
>
>
Strange, I could have sworn that I rebased my master branch correctly.
Now, the fix is showing in master. Well, now that that has been resolved,
I guess we can just simply cherry-pick that commit into v1.1.x?
Ben Root

On Thu, Dec 1, 2011 at 9:29 AM, Neilen Marais <nm...@sk...> wrote:
> https://github.com/matplotlib/matplotlib/commit
> /98ee4e991ae142622f3814db193b75236eb77cea#src/ft2font.cpp
Hmm, strange...
It isn't even in master right now. The last changes to it were by Michael
Droettboom (commit 6b643862) in June of 2010, but the commit you are
pointing to was done in March of 2011... this needs more investigating.
Ben Root

Hi,
We are (I think) running into a memory leak that should be resolved by
https://github.com/matplotlib/matplotlib/commit
/98ee4e991ae142622f3814db193b75236eb77cea#src/ft2font.cpp
It was commited in March, but seems not to have made its way to the 1.1.x
branch. Would it be possible for a maintainer to apply it to the release branch?
Thanks
Neilen

I have a basemap figure where data is placed atop, which can be in any
number of differing projections. However, when I plot a line over it using
pyplot.plot, the line doesn't show unless I'm using
the cylindrical equidistant projection.
>From what I gather this is a limitation of the plot command. Can anyone
confirm this? Is this a limitation in that the 'cyl' projection is assumed
by pyplot.plot?
I saw a post that mentioned that a projection kwarg would not be added to
the plot command. Does this mean that the plot command will realize the
projection of the gca basemap?
Bruce
---------------------------------------
Bruce W. Ford

On Wednesday, November 30, 2011, Tony Yu <ts...@gm...> wrote:
>
>
> On Wed, Nov 30, 2011 at 6:31 PM, Grigoris Maravelias <
gr....@gm...> wrote:
>>
>> Well I did tried this but it didn't work out. It actually removes the
black color from the color_cycle but the pie still prints it. Moreover I
noticed that this color_cycle has 7 colors that repeats after the first 7
so it won't do what I want. I will need to find another way to set the
colors or just avoid the pie.
>>
>
> I guess I should atleast read the docstring for plt.pie before giving you
advice on how to use it. It looks like the default colors are hard coded
into the function (instead of using the color_cycle parameter).
>
> The quickest way to create different colors is to pick them out from a
colormap. For example, the following gives decent results:
>
>>>> colors = plt.cm.Set1(np.linspace(0,1,9))
>>>> plt.pie(np.ones(9), colors=colors)
>
> Of course, trying to get more (visually-differentiable) colors out of the
color map will be difficult.
>
> Hope that helps,
> -Tony
>
>
Just making a note to myself. I have bits and pieces of a property cycling
mechanism (originally to cycle line styles). I am finding that cycling is
very inconsistent throughout mpl, and I should probably add pie() to that
list as well.
As an additional note, would it be a desirable feature to be able to cycle
hash styles in the case of producing b&w plots?
Ben Root

On Wed, Nov 30, 2011 at 6:31 PM, Grigoris Maravelias <
gr....@gm...> wrote:
> **
> Well I did tried this but it didn't work out. It actually removes the
> black color from the color_cycle but the pie still prints it. Moreover I
> noticed that this color_cycle has 7 colors that repeats after the first 7
> so it won't do what I want. I will need to find another way to set the
> colors or just avoid the pie.
>
>
I guess I should atleast read the docstring for plt.pie before giving you
advice on how to use it. It looks like the default colors are hard coded
into the function (instead of using the color_cycle parameter).
The quickest way to create different colors is to pick them out from a
colormap. For example, the following gives decent results:
>>> colors = plt.cm.Set1(np.linspace(0,1,9))
>>> plt.pie(np.ones(9), colors=colors)
Of course, trying to get more (visually-differentiable) colors out of the
color map will be difficult.
Hope that helps,
-Tony

On Fri, Nov 25, 2011 at 6:39 PM, Gökhan Sever <gok...@gm...> wrote:
>
> plt.axis('off')
>
> or
>
> ax = plt.gca()
> ax.set_axis_off()
>
> should clear the axis bounds and remove ticks as well.
>
Thank you so much, Gökhan! That's exactly what I was looking for.
Best,
Marianne