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[Octave-bug-tracker] [bug #45881] Diagonal lines visible in PNG image cr
From: |
anonymous |
Subject: |
[Octave-bug-tracker] [bug #45881] Diagonal lines visible in PNG image created using pcolor |
Date: |
Sat, 05 Sep 2015 16:58:34 +0000 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:39.0) Gecko/20100101 Firefox/39.0 |
URL:
<http://savannah.gnu.org/bugs/?45881>
Summary: Diagonal lines visible in PNG image created using
pcolor
Project: GNU Octave
Submitted by: None
Submitted on: Sat 05 Sep 2015 04:58:33 PM UTC
Category: Plotting with OpenGL
Severity: 3 - Normal
Priority: 5 - Normal
Item Group: Inaccurate Result
Status: None
Assigned to: None
Originator Name:
Originator Email:
Open/Closed: Open
Discussion Lock: Any
Release: 3.8.1
Operating System: GNU/Linux
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Details:
h=pcolor(rand(16));
set(h,'EdgeColor','none');
colormap(gray(256));
print('test.png','-dpng','-r600');
Actually, you do not need to set colormap, but it makes the issue more
visible.
Since I need to get rid of them quickly I also ask for a different solution. I
use pcolor since I want logarithmic x- and y-axis. I can apply a median filter
afterwards, but that requires horrible amount of RAM since my grid is
fine-grained. Since it appears that Octave does it through gs,
gs --version
gives me 9.10
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File Attachments:
-------------------------------------------------------
Date: Sat 05 Sep 2015 04:58:33 PM UTC Name: test.png Size: 332kB By: None
<http://savannah.gnu.org/bugs/download.php?file_id=34816>
_______________________________________________________
Reply to this item at:
<http://savannah.gnu.org/bugs/?45881>
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- [Octave-bug-tracker] [bug #45881] Diagonal lines visible in PNG image created using pcolor,
anonymous <=