bugGNU Octave - Bugs: bug #46274, "print" pdf/png of...

 
 

bug #46274: "print" pdf/png of "contourf" plot renders underlying surface triangulation

Submitter:  None
Submitted:  Thu 22 Oct 2015 05:32:14 PM UTC
   
 
Category:  Plotting with OpenGL Severity:  3 - Normal
Priority:  5 - Normal Item Group:  Incorrect Result
Status:  Duplicate Assigned to:  None
Originator Name:  Wolfgang F. Originator Email:  -email is unavailable-
Open/Closed:  * Closed Release:  * 4.0.0
Operating System:  * GNU/Linux Fixed Release:  None
Planned Release:  None
* Mandatory Fields

Add a New Comment Rich Markup
   

Fri 23 Oct 2015 05:26:11 PM UTC, comment #2: 

Thanks for the answer. I can see the problem, the solution is, however, a bit unsatisfying. Seems to be a problem of many viewers..

Best,
WF

Anonymous
Fri 23 Oct 2015 04:11:11 PM UTC, comment #1: 

This is a duplicate of bug #44181 and possibly bug #45881.  The problem is actually in the ghostscript viewer which is applying anti-aliasing to the lines of each triangle making up the surface.  See bug #44181 for ways to turn off anti-aliasing in the PDF viewer.

Rik <rik5>
Group administrator
Thu 22 Oct 2015 05:32:14 PM UTC, original submission:  

For graphics toolkits qt/fltk when printing a contourf plot to a file (pdf/png), the file will show the lines of the patches of the underlying surface fill/triangulation.


close all;
clear;

graphics_toolkit qt
[xx yy zz]=peaks();
contourf(xx,yy,zz);
colormap summer

print contourf.pdf


Result is attached. Unfortunately I have no possibility for testing with the current dev version.

gnuplot toolkit does not show this issue.

W.F.

Anonymous

 

(Note: upload size limit is set to 16384 kB, after insertion of the required escape characters.)

Attach Files:
   
   
Comment:
   

Attached Files
file #35265:  contourf.pdf added by None (14KiB - application/pdf)

 

Depends on the following items: None found

Items that depend on this one: None found

 

Carbon-Copy List
  • -email is unavailable- added by rik5 (Posted a comment)
  • -email is unavailable- added by None (Submitted the item)
  •  

    There are 0 votes so far. Votes easily highlight which items people would like to see resolved in priority, independently of the priority of the item set by tracker managers.

    Only group members can vote.

     

    Follow 3 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2015-10-23 rik5 StatusNone Duplicate
        Open/ClosedOpen Closed
    2015-10-22 None Attached File- Added contourf.pdf, #35265

    Back to the top

    Powered by Savane 3.13-caa5.
    Corresponding source code