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[Octave-bug-tracker] [bug #46529] wrong data when printing to PDF, EPS o
From: |
Andreas Stahel |
Subject: |
[Octave-bug-tracker] [bug #46529] wrong data when printing to PDF, EPS or PS |
Date: |
Wed, 25 Nov 2015 13:51:25 +0000 |
User-agent: |
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:42.0) Gecko/20100101 Firefox/42.0 |
URL:
<http://savannah.gnu.org/bugs/?46529>
Summary: wrong data when printing to PDF, EPS or PS
Project: GNU Octave
Submitted by: sha1
Submitted on: Wed 25 Nov 2015 02:51:23 PM CET
Category: Plotting with OpenGL
Severity: 3 - Normal
Priority: 5 - Normal
Item Group: Inaccurate Result
Status: None
Assigned to: None
Originator Name: Andreas Stahel
Originator Email:
Open/Closed: Open
Discussion Lock: Any
Release: dev
Operating System: GNU/Linux
_______________________________________________________
Details:
Dear developers
When the figure below is shown on screen it is correct, when printing to
*.pdf, *.eps or *.ps the noise level is to high.
Problem only shows when using a large data set.
If there is no initial noise, there is no problem.
Problem does show with graphics_toolkit qt and fltk,
it does not show with gnuplot.
The problems shows on two different Linux hosts, with versions 4.0.0 and the
developer version of Octave.
graphics_toolkit
% test PDF generation, qt and fltk produce wrong result, gnuplot is OK
t = linspace(0,1.2,100); % no problem in PDF
t = linspace(0,1.2,2^13); % problem in PDF
y = min(1,50*exp(-10*t));
noise = 0.001*randn(size(t)); % no noise, no problem
y = y + noise;
MaximalAmplitude = max(y)
plot(t,y)
print -dpdfwrite TestPDF.pdf
print -depsc TestPDF.eps
print -dps TestPDF.ps
_______________________________________________________
Reply to this item at:
<http://savannah.gnu.org/bugs/?46529>
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- [Octave-bug-tracker] [bug #46529] wrong data when printing to PDF, EPS or PS,
Andreas Stahel <=