RE: Help with saveas and fltk

[Rick M. Cox]

 

 

From: address@hidden [mailto:address@hidden On Behalf Of Nicholas Jankowski
Sent: Thursday, June 06, 2013 8:21 PM
To: Rick M. Cox
Cc: Ben Abbott; help-octave Octave
Subject: Re: Help with saveas and fltk

 

On Thu, Jun 6, 2013 at 6:25 PM, Rick M. Cox <address@hidden> wrote:

Rick, would help if I could try to reproduce what you're doing. I'm not running XP, but Win7, so things might be different. The "D:/Programs" problem pops up A LOT due to microsoft's infinite wisdom of making core folders with spaces in the filename's. Not just with Octave, either. Previously conversations I've seen with that problem were with configuring editors, though.

If you could upload some simple m-files recreating your problem, I'd be curious to see if it occurs here. Or maybe someone else with an XP box can try recreating the issue.

nickj

 

 

 

Nick:

 

Thanks for the help offer.  I have attached the short Octave program that is an example of my problem.

 

My system:

·       Pentium 4, 3.2 GHz

·       Windows XP Pro SP3

·       Visual C++ 2010 Redistributable Package

·       Octave 3.6.4

·       Latest version of GhostScript

 

Both Octave and GhostScript are installed in paths that have no white spaces.

 

Octave commands:

>scdraw

>print “test.png”

 

With ‘gnuplot’ everything works as expected.  It takes 60 seconds for ‘scdraw’ to generate the Smith Chart and another 50 seconds for the print command to save the file.  I can save any file format without problems.

 

With ‘fltk’ the ‘scdraw’ program generates the Smith Chart in about 10 seconds.  The print command causes the figure window to become scrambled and unresponsive.  Octave is also unresponsive and I have to close it.  Any file format that I try produces the same result.

 

I hope you can help me out!

 

Rick

 

 

 

Will check it out when I'm back at work. But FYI i'm running the MinGW version on Win7, so who knows what will happen :)

 

regarding load time, I do notice when I do other simple things in Octave it takes a long time for the first figure to load (i usually have things set to fltk). so something as simple as:

plot([1 2 3])

will take a long time to run once, but a 'close all' followed by plot([1 2 3]) again will pop right up (same with any other figures after the first). so i assume that the first figure has some program loading or initialization occurring. perhaps something similar here? or is it just as slow every time?

 

 

Nick:

 

I tried my test plot and print with the MinGW version of Octave and it fails in the same way.

 

I tried your experiment of plotting my figure followed by a ‘close all’ followed by another plot.  I notice no difference in the time to plot the second instance compared to the first.

 

This may be of interest.  When I use ‘fltk’ with the following sequence everything works just fine:

 

>sombrero

>print “test.png”

 

The figure window is scrambled for a moment but then it recovers and the file is saved.  The same with:

 

>plot (rand (3))

>print “test.png”

 

When I switch back to:

 

>scdraw

>print “test.png”

 

everything fails as before.  I don’t know how complex the sombrero figure is compared to my Smith Chart and when I raised the complexity issue with Ben he didn’t seem to think it was relevant.  Something must be different with my Smith Chart plot or the method I’m using to generate it.

 

Rick