Menu
▾
▴
matplotlib-users
|
From: Samuel M. S. <sm...@sa...> - 2006-11-21 19:14:04
|
I recently upgraded matplotlib 87.7 Mac OS X PPC 10.4 python 2.4 from
sourceforge binary
Using backend TkAgg version 8.4
Whenever I save png plots using the toolbar save button or explicitly,
the edgecolor around the outside of the plot is gray. I want it to
be white.
I have the following in my rc file.
savefig.edgecolor : white # figure edgecolor when saving
I also tried this in my plotting program
rc('savefig',edgecolor = 'w')
and I also tried saving from the plotting program with
savefig("paths4test.png",edgecolor= 'w')
Nothing seems to work.
I didn't have this problem with Matplotlib 85.x
**********************************************************************
Samuel M. Smith Ph.D.
2966 Fort Hill Road
Eagle Mountain, Utah 84005-4108
801-768-2768 voice
801-768-2769 fax
**********************************************************************
"The greatest source of failure and unhappiness in the world is
giving up what we want most for what we want at the moment"
**********************************************************************
|
|
From: Samuel M. S. <sm...@sa...> - 2006-11-21 19:21:34
|
It also doesn't work with backend WXAgg version 2.6.3.3
On 21 Nov, 2006, at 12:13, Samuel M. Smith wrote:
> I recently upgraded matplotlib 87.7 Mac OS X PPC 10.4 python 2.4 from
> sourceforge binary
> Using backend TkAgg version 8.4
>
>
> Whenever I save png plots using the toolbar save button or explicitly,
> the edgecolor around the outside of the plot is gray. I want it to
> be white.
>
> I have the following in my rc file.
> savefig.edgecolor : white # figure edgecolor when saving
>
> I also tried this in my plotting program
> rc('savefig',edgecolor = 'w')
>
> and I also tried saving from the plotting program with
> savefig("paths4test.png",edgecolor= 'w')
>
> Nothing seems to work.
>
> I didn't have this problem with Matplotlib 85.x
>
>
>
> **********************************************************************
> Samuel M. Smith Ph.D.
> 2966 Fort Hill Road
> Eagle Mountain, Utah 84005-4108
> 801-768-2768 voice
> 801-768-2769 fax
> **********************************************************************
> "The greatest source of failure and unhappiness in the world is
> giving up what we want most for what we want at the moment"
> **********************************************************************
>
>
>
> ----------------------------------------------------------------------
> ---
> Take Surveys. Earn Cash. Influence the Future of IT
> Join SourceForge.net's Techsay panel and you'll get the chance to
> share your
> opinions on IT & business topics through brief surveys - and earn cash
> http://www.techsay.com/default.php?
> page=join.php&p=sourceforge&CID=DEVDEV
> _______________________________________________
> Matplotlib-users mailing list
> Mat...@li...
> https://lists.sourceforge.net/lists/listinfo/matplotlib-users
**********************************************************************
Samuel M. Smith Ph.D.
2966 Fort Hill Road
Eagle Mountain, Utah 84005-4108
801-768-2768 voice
801-768-2769 fax
**********************************************************************
"The greatest source of failure and unhappiness in the world is
giving up what we want most for what we want at the moment"
**********************************************************************
|
|
From: John H. <jdh...@ac...> - 2006-11-21 19:21:35
|
>>>>> "Samuel" == Samuel M Smith <sm...@sa...> writes:
Samuel> I recently upgraded matplotlib 87.7 Mac OS X PPC 10.4
Samuel> python 2.4 from sourceforge binary Using backend TkAgg
Samuel> version 8.4
Samuel> Whenever I save png plots using the toolbar save button or
Samuel> explicitly, the edgecolor around the outside of the plot
Samuel> is gray. I want it to be white.
Samuel> I have the following in my rc file. savefig.edgecolor :
Samuel> white # figure edgecolor when saving
Samuel> I also tried this in my plotting program
Samuel> rc('savefig',edgecolor = 'w')
Samuel> and I also tried saving from the plotting program with
Samuel> savefig("paths4test.png",edgecolor= 'w')
Strange -- I don't see that. In the example below, the rows of
[1,1,1,1] indicate white. What do you get?
In [5]: plot([1,2,3])
Out[5]: [<matplotlib.lines.Line2D instance at 0xb64dd74c>]
In [6]: savefig('test.png')
In [7]: im = imread('test.png')
In [8]: im.shape
Out[8]: (900, 1200, 4)
In [10]: im[0:5,0:10,:]
Out[10]:
array([[[ 1., 1., 1., 1.],
[ 1., 1., 1., 1.],
[ 1., 1., 1., 1.],
[ 1., 1., 1., 1.],
[ 1., 1., 1., 1.],
[ 1., 1., 1., 1.],
[ 1., 1., 1., 1.],
[ 1., 1., 1., 1.],
[ 1., 1., 1., 1.],
[ 1., 1., 1., 1.]],
[[ 1., 1., 1., 1.],
[ 1., 1., 1., 1.],
[ 1., 1., 1., 1.],
[ 1., 1., 1., 1.],
[ 1., 1., 1., 1.],
[ 1., 1., 1., 1.],
[ 1., 1., 1., 1.],
[ 1., 1., 1., 1.],
[ 1., 1., 1., 1.],
[ 1., 1., 1., 1.]],
[[ 1., 1., 1., 1.],
[ 1., 1., 1., 1.],
[ 1., 1., 1., 1.],
[ 1., 1., 1., 1.],
[ 1., 1., 1., 1.],
[ 1., 1., 1., 1.],
[ 1., 1., 1., 1.],
[ 1., 1., 1., 1.],
[ 1., 1., 1., 1.],
[ 1., 1., 1., 1.]],
[[ 1., 1., 1., 1.],
[ 1., 1., 1., 1.],
[ 1., 1., 1., 1.],
[ 1., 1., 1., 1.],
[ 1., 1., 1., 1.],
[ 1., 1., 1., 1.],
[ 1., 1., 1., 1.],
[ 1., 1., 1., 1.],
[ 1., 1., 1., 1.],
[ 1., 1., 1., 1.]],
[[ 1., 1., 1., 1.],
[ 1., 1., 1., 1.],
[ 1., 1., 1., 1.],
[ 1., 1., 1., 1.],
[ 1., 1., 1., 1.],
[ 1., 1., 1., 1.],
[ 1., 1., 1., 1.],
[ 1., 1., 1., 1.],
[ 1., 1., 1., 1.],
[ 1., 1., 1., 1.]]], dtype=float32)
|
|
From: John H. <jdh...@ac...> - 2006-11-21 19:26:41
|
>>>>> "John" == John Hunter <jdh...@ac...> writes:
John> Strange -- I don't see that. In the example below, the rows
John> of [1,1,1,1] indicate white. What do you get?
And when I ask for red, I get that too:
In [1]: plot([1,2,3])
Out[1]: [<matplotlib.lines.Line2D instance at 0xb64c7f6c>]
In [2]: savefig('test.png', edgecolor='red')
In [3]: im = imread('test.png')
In [4]: im[0:5,0:10,:]
Out[4]:
array([[[ 1. , 0. , 0. , 1. ],
[ 1. , 0. , 0. , 1. ],
[ 1. , 0. , 0. , 1. ],
[ 1. , 0. , 0. , 1. ],
[ 1. , 0. , 0. , 1. ],
[ 1. , 0. , 0. , 1. ],
[ 1. , 0. , 0. , 1. ],
[ 1. , 0. , 0. , 1. ],
[ 1. , 0. , 0. , 1. ],
[ 1. , 0. , 0. , 1. ]],
[[ 1. , 0. , 0. , 1. ],
[ 1. , 0. , 0. , 1. ],
[ 1. , 0.45882353, 0.45882353, 1. ],
[ 1. , 0.45882353, 0.45882353, 1. ],
[ 1. , 0.45882353, 0.45882353, 1. ],
[ 1. , 0.45882353, 0.45882353, 1. ],
[ 1. , 0.45882353, 0.45882353, 1. ],
[ 1. , 0.45882353, 0.45882353, 1. ],
[ 1. , 0.45882353, 0.45882353, 1. ],
[ 1. , 0.45882353, 0.45882353, 1. ]],
[[ 1. , 0. , 0. , 1. ],
[ 1. , 0.45882353, 0.45882353, 1. ],
[ 1. , 1. , 1. , 1. ],
[ 1. , 1. , 1. , 1. ],
[ 1. , 1. , 1. , 1. ],
[ 1. , 1. , 1. , 1. ],
[ 1. , 1. , 1. , 1. ],
[ 1. , 1. , 1. , 1. ],
[ 1. , 1. , 1. , 1. ],
[ 1. , 1. , 1. , 1. ]],
[[ 1. , 0. , 0. , 1. ],
[ 1. , 0.45882353, 0.45882353, 1. ],
[ 1. , 1. , 1. , 1. ],
[ 1. , 1. , 1. , 1. ],
[ 1. , 1. , 1. , 1. ],
[ 1. , 1. , 1. , 1. ],
[ 1. , 1. , 1. , 1. ],
[ 1. , 1. , 1. , 1. ],
[ 1. , 1. , 1. , 1. ],
[ 1. , 1. , 1. , 1. ]],
[[ 1. , 0. , 0. , 1. ],
[ 1. , 0.45882353, 0.45882353, 1. ],
[ 1. , 1. , 1. , 1. ],
[ 1. , 1. , 1. , 1. ],
[ 1. , 1. , 1. , 1. ],
[ 1. , 1. , 1. , 1. ],
[ 1. , 1. , 1. , 1. ],
[ 1. , 1. , 1. , 1. ],
[ 1. , 1. , 1. , 1. ],
[ 1. , 1. , 1. , 1. ]]],
dtype=float32)
|
|
From: Samuel M. S. <sm...@sa...> - 2006-11-21 19:27:18
|
I figured it out. It is saving the outside edge as transparent not
gray. I was viewing the images in Apple's preview and it
displays transparent as gray (not checkerboard like photoshop or
graphic converter).
Sorry.
On 21 Nov, 2006, at 12:21, John Hunter wrote:
>>>>>> "Samuel" == Samuel M Smith <sm...@sa...> writes:
>
> Samuel> I recently upgraded matplotlib 87.7 Mac OS X PPC 10.4
> Samuel> python 2.4 from sourceforge binary Using backend TkAgg
> Samuel> version 8.4
>
>
> Samuel> Whenever I save png plots using the toolbar save button or
> Samuel> explicitly, the edgecolor around the outside of the plot
> Samuel> is gray. I want it to be white.
>
> Samuel> I have the following in my rc file. savefig.edgecolor :
> Samuel> white # figure edgecolor when saving
>
> Samuel> I also tried this in my plotting program
> Samuel> rc('savefig',edgecolor = 'w')
>
> Samuel> and I also tried saving from the plotting program with
> Samuel> savefig("paths4test.png",edgecolor= 'w')
>
> Strange -- I don't see that. In the example below, the rows of
> [1,1,1,1] indicate white. What do you get?
>
>
> In [5]: plot([1,2,3])
> Out[5]: [<matplotlib.lines.Line2D instance at 0xb64dd74c>]
>
> In [6]: savefig('test.png')
>
> In [7]: im = imread('test.png')
>
> In [8]: im.shape
> Out[8]: (900, 1200, 4)
>
>
> In [10]: im[0:5,0:10,:]
> Out[10]:
> array([[[ 1., 1., 1., 1.],
> [ 1., 1., 1., 1.],
> [ 1., 1., 1., 1.],
> [ 1., 1., 1., 1.],
> [ 1., 1., 1., 1.],
> [ 1., 1., 1., 1.],
> [ 1., 1., 1., 1.],
> [ 1., 1., 1., 1.],
> [ 1., 1., 1., 1.],
> [ 1., 1., 1., 1.]],
>
> [[ 1., 1., 1., 1.],
> [ 1., 1., 1., 1.],
> [ 1., 1., 1., 1.],
> [ 1., 1., 1., 1.],
> [ 1., 1., 1., 1.],
> [ 1., 1., 1., 1.],
> [ 1., 1., 1., 1.],
> [ 1., 1., 1., 1.],
> [ 1., 1., 1., 1.],
> [ 1., 1., 1., 1.]],
>
> [[ 1., 1., 1., 1.],
> [ 1., 1., 1., 1.],
> [ 1., 1., 1., 1.],
> [ 1., 1., 1., 1.],
> [ 1., 1., 1., 1.],
> [ 1., 1., 1., 1.],
> [ 1., 1., 1., 1.],
> [ 1., 1., 1., 1.],
> [ 1., 1., 1., 1.],
> [ 1., 1., 1., 1.]],
>
> [[ 1., 1., 1., 1.],
> [ 1., 1., 1., 1.],
> [ 1., 1., 1., 1.],
> [ 1., 1., 1., 1.],
> [ 1., 1., 1., 1.],
> [ 1., 1., 1., 1.],
> [ 1., 1., 1., 1.],
> [ 1., 1., 1., 1.],
> [ 1., 1., 1., 1.],
> [ 1., 1., 1., 1.]],
>
> [[ 1., 1., 1., 1.],
> [ 1., 1., 1., 1.],
> [ 1., 1., 1., 1.],
> [ 1., 1., 1., 1.],
> [ 1., 1., 1., 1.],
> [ 1., 1., 1., 1.],
> [ 1., 1., 1., 1.],
> [ 1., 1., 1., 1.],
> [ 1., 1., 1., 1.],
> [ 1., 1., 1., 1.]]], dtype=float32)
>
>
**********************************************************************
Samuel M. Smith Ph.D.
2966 Fort Hill Road
Eagle Mountain, Utah 84005-4108
801-768-2768 voice
801-768-2769 fax
**********************************************************************
"The greatest source of failure and unhappiness in the world is
giving up what we want most for what we want at the moment"
**********************************************************************
|
|
From: John H. <jdh...@ac...> - 2006-11-21 19:29:32
|
>>>>> "Samuel" == Samuel M Smith <sm...@sa...> writes:
Samuel> I figured it out. It is saving the outside edge as
Samuel> transparent not gray. I was viewing the images in Apple's
Samuel> preview and it displays transparent as gray (not
Samuel> checkerboard like photoshop or graphic converter).
I still don't understand where the transparency is coming from (unless
you are setting the alpha explicitly somewhere else). In the example
output I posted previously, the 4th entry in the image RGBAs is 1,
indicating that the alpha channel is 1, fully opaque.
JDH
|
|
From: Samuel M. S. <sm...@sa...> - 2006-11-22 18:30:30
|
I don't know where the transparency is coming from either. I don't know where I would set the alpha. Could it be in the .rc file? Could it be the way Macs process png files. If you like I can send a copy of the image On 21 Nov, 2006, at 12:29, John Hunter wrote: >>>>>> "Samuel" == Samuel M Smith <sm...@sa...> writes: > > Samuel> I figured it out. It is saving the outside edge as > Samuel> transparent not gray. I was viewing the images in Apple's > Samuel> preview and it displays transparent as gray (not > Samuel> checkerboard like photoshop or graphic converter). > > I still don't understand where the transparency is coming from (unless > you are setting the alpha explicitly somewhere else). In the example > output I posted previously, the 4th entry in the image RGBAs is 1, > indicating that the alpha channel is 1, fully opaque. > > JDH ********************************************************************** Samuel M. Smith Ph.D. 2966 Fort Hill Road Eagle Mountain, Utah 84005-4108 801-768-2768 voice 801-768-2769 fax ********************************************************************** "The greatest source of failure and unhappiness in the world is giving up what we want most for what we want at the moment" ********************************************************************** |
|
From: John H. <jdh...@ac...> - 2006-11-22 18:36:26
|
>>>>> "Samuel" == Samuel M Smith <sm...@sa...> writes:
Samuel> I don't know where the transparency is coming from
Samuel> either. I don't know where I would set the alpha. Could it
Samuel> be in the .rc file? Could it be the way Macs process png
Samuel> files. If you like I can send a copy of the image
I looked at it and yes the alpha channel is zero. Very bizarre.
Please send a free standing script, the rc file you are using, the
output of the script when you run the file with --verbose-helpful and
the generated image file.
JDH
|
×
Want the latest updates on software, tech news, and AI?
Get latest updates about software, tech news, and AI from SourceForge directly in your inbox once a month.
Thanks for helping keep SourceForge clean.
X