RE: Help with saveas and fltk

[Tatsuro MATSUOKA]

--- On Sat, 2013/6/15, Rick M. Cox  wrote:
> -----Original Message-----
> From: Ben Abbott [mailto:address@hidden 
> Sent: Friday, June 14, 2013 9:13 PM
> To: Rick M. Cox
> Cc: 'Nicholas Jankowski'; 'help-octave Octave'; 'Tatsuro MATSUOKA'
> Subject: Re: Help with saveas and fltk
> 
> On Jun 15, 2013, at 9:52 AM, Rick M. Cox wrote:
> 
> >  From: address@hidden [mailto:address@hidden On Behalf Of
> Nicholas Jankowski
> > Sent: Friday, June 14, 2013 6:48 PM
> > To: Ben Abbott
> > Cc: Rick M. Cox; help-octave Octave; Tatsuro MATSUOKA
> > Subject: Re: Help with saveas and fltk
> >  
> > i have an xp machine i could throw 3.64 on... will try it when i get a
> chance.
> >  
> > On Fri, Jun 14, 2013 at 9:32 PM, Ben Abbott <address@hidden> wrote:
> >> On Jun 15, 2013, at 3:44 AM, Rick M. Cox wrote:
> >> 
> >> >  From: Benjamin Abbott [mailto:address@hidden
> >> > Sent: Friday, June 14, 2013 3:36 AM
> >> > To: Nicholas Jankowski
> >> > Cc: Rick M. Cox; help-octave Octave
> >> > Subject: Re: Help with saveas and fltk
> >> >
> >> >> On Jun 14, 2013, at 6:25 PM, Nicholas Jankowski <address@hidden>
> wrote:
> >> >>
> >> >>> On Thu, Jun 13, 2013 at 10:55 PM, Ben Abbott <address@hidden>
> wrote:
> >> >>>
> >> >>>> On Jun 13, 2013, at 10:25 PM, "Rick M. Cox" <address@hidden>
> wrote:
> >> >>>>
> >> >>>>  From: address@hidden [mailto:address@hidden On Behalf Of
> Nicholas Jankowski
> >> >>>> Sent: Thursday, June 13, 2013 6:57 PM
> >> >>>> To: Rick M. Cox
> >> >>>> Cc: Ben Abbott; help-octave Octave
> >> >>>> Subject: Re: Help with saveas and fltk
> >> >>>>
> >> >>>>> On Thu, Jun 13, 2013 at 9:44 PM, Rick M. Cox <address@hidden>
> wrote:
> >> >>>>>
> >> >>>>>> From: Ben Abbott [mailto:address@hidden
> >> >>>>>> Sent: Thursday, June 13, 2013 5:58 PM
> >> >>>>>> To: Rick M. Cox
> >> >>>>>> Cc: 'Nicholas Jankowski'; 'help-octave Octave'
> >> >>>>>>
> >> >>>>>> Subject: Re: Help with saveas and fltk
> >> >>>>>>
> >> >>>>>>> On Jun 13, 2013, at 03:12 PM, "Rick M. Cox"
> <address@hidden> wrote:
> >> >>>>>>>
> >> >>>>>>>> Nick and Ben:
> >> >>>>>>>>
> >> >>>>>>>> I hope some of this helps:
> >> >>>>>>>>
> >> >>>>>>>> 1.      I haven't seen the "D:\Program" error in a long time.
> >> >>>>>>>>
> >> >>>>>>>> 2.      I installed Octave 3.7.2+ and Ghostscript v9.07 in paths
> with no white spaces.  Even though I don't use it anymore, I never deleted
> Octave 3.6.4.  It still resides in a path with white spaces.  I certainly
> could delete it if you thought it was a problem.
> >> >>>>>>>>
> >> >>>>>>>> 3.      I thought I correctly added Ghostscript to the system
> path/environment variables per the setup instructions.
> >> >>>>>>>>
> >> >>>>>>>> 4.      When I type system ("gswin32c.exe") I get a Ghostscript
> 9.07 header.
> >> >>>>>>>>
> >> >>>>>>>>
> >> >>>>>>>> I'm cheered that my routines work on your systems.  I'd like it
> to work on mine.  J
> >> >>>>>>>>
> >> >>>>>>>> Thanks again,
> >> >>>>>>>>
> >> >>>>>>>> Rick
> >> >>>>>>>
> >> >>>>>>> I'm not sure it will help resolve the problem, but please type
> EXEC_PATH at Octave's prompt and copy-n-paste the text it returns into you
> reply.
> >> >>>>>>>
> >> >>>>>>> Also tell us if you've installed more than one version of
> Ghostscript and where they are.
> >> >>>>>>>
> >> >>>>>>>  Ben
> >> >>>>>>
> >> >>>>>>
> >> >>>>>> Ben:
> >> >>>>>>
> >> >>>>>> I am sorry but I don't know how to copy something from the Octave
> 3.7.2+ Command Window.  I can see the results of the EXEC_PATH command but I
> can't copy them.  I have looked for help on the web but haven't found the
> right thing yet.
> >> >>>>>>
> >> >>>>>> As to your second question there is only one copy of Ghostscript
> installed on my machine.  When I tried to install it to a path with no white
> spaces, I had to uninstall the previous version first.  The path to
> Ghostscript on my machine is:
> >> >>>>>>
> >> >>>>>> D:\Ghostscript\gs9.07
> >> >>>>>>
> >> >>>>>> I added this path to the Environment Variables on my system.
> >> >>>>>>
> >> >>>>>> Rick
> >> >>>>>
> >> >>>>>
> >> >>>>> Rick, also check to see if there's one in the Octave folder. The
> windows builds might have them included assuming most windows users wouldn't
> know what ghostscript is. It would be located here:
> >> >>>>>
> >> >>>>> for my copy of version 3.6.4, its located at:
> >> >>>>>
> >> >>>>> C:\Octave\Octave3.6.4_gcc4.6.2\gs
> >> >>>>>
> >> >>>>> with the main executable as
> C:\Octave\Octave3.6.4_gcc4.6.2\gs\bin\gswin32.exe
> >> >>>>
> >> >>>> Nick,
> >> >>>>
> >> >>>> Since Rick is running the mingw version of Octave, is there a
> problem using gswin32.exe instead of the mingw gs.exe?
> >> >>>
> >> >>> Ben
> >> >>>
> >> >>> I believe on mine the executable included in octave is gswin32.exe,
> there is no gs.exe
> >> >>>
> >> >>> and threadhopping to your other question, the MinGW version includes
> a shortcut that starts Octave in what I believe is the msys shell.  It
> doesn't add things to the system path such that runnign commands from the
> dos shell will automatically do anything.
> >> >>
> >> >> On win7, I have an msys octave-3.6.2 that is able to print using
> gswin32.exe.  Which version of windows are you running?
> >> >>
> >> >> Ben
> >> >
> >> > Ben:
> >> >
> >> > I am running Windows XP Pro SP3.  I use Octave 3.7.2+ with the GUI.  I
> had the same problem though with Octave 3.6.4.
> >> >
> >> > Rick
> >> 
> >> Except that the problem appears to be related to WinXP, I have no other
> insight at the moment.  Is anyone else following the discussion running XP?
> >> 
> >> Ben
> > 
> > Nick and Ben:
> >  
> > I appreciate Nick's offer and look forward to what he finds out.
> >  
> > To add to the mystery every other plot that I have tried so far has saved
> just fine.  There seems to be something about these semicircles and arcs.
> >  
> > Rick
> 
> Perhaps you can experiment with removing different curves to see if you can
> isolate the problem.
> 
> (1) No constant resistance circles
> (2) No constant reactance arcs
> (3) No text
> (4) etc ...
> 
> Also, your arcs don't aren't constructed  using equal length lines.  Try the
> attached version.
> 
> Ben
> 
> Ben:
> 
> Here is one last message for tonight.  I tried plotting a simple cubic
> equation.
> 
> x = linspace (-10, 10, 201);
> y = x.^3;
> plot (x,y)
> print "testcubic.eps"
> 
> The result is attached.  In all of these plots it looks like some origin is
> selected and a first subset of the whole data set is plotted.  The second,
> third and so forth subsets are plotted.  In the on-screen versions it always
> looks just fine.  In the saved file versions it looks like the first point
> in each subset resets to the origin which results in the 'rays' going out to
> each subset.  Your version of scdraw does the same thing as mine but with a
> different origin.  The cubic plot sets an origin in the lower left corner.
> 
> I don't know which program is responsible for what but it looks like the
> data generated when fltk is the graphics tool includes some character or
> command that the on-screen renderer has no problem with but the program that
> generates the saved file gets confused by.
> 
> I'm revealing my age here but in the old days of mechanical plotters one had
> to remember "pen up" and "pen down" commands to keep from getting output
> that looks like what happens on my system.
> 
> Rick

Hello Rick

On my system( Win 7 Home Premium 64 bit, octave-3.7.2+(VS ), 
the  commands

graphics_toolkit fltk
x = linspace (-10, 10, 201);
y = x.^3;
plot (x,y)
print "testcubic.eps"

gives attached files.

I do not know why you have gotten incorrect results.

Regards

Tatsuro

testcubic.eps
Description: PostScript document