bugGNU Octave - Bugs: bug #52749, fltk to qt merge

 
 

bug #52749: fltk to qt merge

Submitted by:  Michael Godfrey <godfrey>
Submitted on:  Wed 27 Dec 2017 02:43:57 PM UTC  
 
Category:  Plotting Severity:  3 - Normal
Priority:  5 - Normal Item Group:  Incorrect Result
Status:  None Assigned to:  None
Originator Name:  Michael Godfrey Open/Closed:  Open
Release:  dev Operating System:  Any

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Wed 27 Dec 2017 02:43:57 PM UTC, original submission:

It is planned to transition fltk to qt. A major problem in doing
this is that, for the same input, the resulting PDF bounding
boxes differ by a large enough amount that their use, for example,
in LaTeX \includegraphics() requires substantial recoding of the
parameters. It would be very useful if both plotting systems
produced the same plot, including Bounding Box values when
processing the same input. Here is an example of the surrent
state with and without -tight:

*************qt vs fltk Bounding Box results w/wo pdfcrop
qt fltk
plot_diff.pdf 17 179 595 702 49 198 536 589
plot_diff-crop.pdf 0 0 578 523 0 0 487 391
plot_orig_norm.pdf 17 179 595 702 64 236 551 564
plot_orig_norm-crop.pdf 0 0 578 523 0 0 487 328

With -tight set:
plot_diff.pdf 17 179 595 702 52 200 551 600
plot_diff-crop.pdf 0 0 578 523 0 0 499 400

It would also be helpful to implement an option to run
pdfcrop before writing the output. -tight appears not to
do the same as pdfcrop. pdfcrop makes the plots easier to
use.

Michael Godfrey <godfrey>
Project Member

 

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