[Jprogramming] saving an image as jpg fails

[Raul Miller]

I cannot reproduce this problem.

In jqt (which I think is what you are using here), if you run:

   open 'jzplot'

and then find the definition which begins with qt_jpg=: 3 : 0 -- can
you insert echo statements there which show whether or not that verb
is being used?

If so, and if the data looks good there, this is probably an issue
with qt on your system, rather than an issue with plot. (It's
basically setting up for and calling writeimg_jqtide_ .)

Thanks,


--
Raul

On Tue, Nov 23, 2021 at 2:47 PM R.E. Boss <r.e.boss at outlook.com> wrote:
>
> Here they are both not stored in jpath '~install', but that can be a security issue, neither in '~home'.
> pd 'save png "',(jpath '~user'),'/example.png"' works,
> pd 'save jpg "',(jpath '~user'),'/example.jpg"' does not.
>
>
> R.E. Boss
>
>
> -----Original Message-----
> From: Programming <programming-bounces at forums.jsoftware.com> On Behalf Of Raul Miller
> Sent: dinsdag 23 november 2021 18:44
> To: Programming forum <programming at jsoftware.com>
> Subject: Re: [Jprogramming] saving an image as jpg fails
>
> They are stored in jpath '~install'
>
> But, for example, this creates both image files, also:
>
> load'plot'
> pd 'reset'
> pd  p:i.10
> pd 'show'
> pd 'save png "/tmp/example.png"'
> pd 'save jpg "/tmp/example.jpg"'
>
> And, this also gives me both files:
>
> pd 'save png "',(jpath '~user'),'/example.png"'
> pd 'save jpg "',(jpath '~user'),'/example.jpg"'
>
> FYI,
>
> --
> Raul
>
> On Tue, Nov 23, 2021 at 11:52 AM R.E. Boss <r.e.boss at outlook.com> wrote:
> >
> > If I copy your example, I have no clue where the files are stored, definitely not in my user directory.
> > If I let the name precede by the folder indication, then example.png works, but the .jpg not, while nothing happens.
> > (In the first attempts today, with beta-u, an empty .jpg file with the
> > correct name was created.) I am not succeeding in creating any file(name) with fwrite, but that is probably my inexperience.
> >
> >
> > R.E. Boss
> >
> >
> > -----Original Message-----
> > From: Programming <programming-bounces at forums.jsoftware.com> On Behalf
> > Of Raul Miller
> > Sent: dinsdag 23 november 2021 17:04
> > To: Programming forum <programming at jsoftware.com>
> > Subject: Re: [Jprogramming] saving an image as jpg fails
> >
> > It seems to work for me.
> >
> > I ran:
> >
> > load'plot'
> > pd 'reset'
> > pd  p:i.10
> > pd 'show'
> > pd 'save png "example.png"'
> > pd 'save jpg "example.jpg"'
> >
> > And this created an example.png and an example.jpg file in my j903 directory.
> >
> >    JVERSION
> > Engine: j903/j64avx2/darwin
> > Beta-v: commercial/2021-11-16T22:02:28
> > Library: 9.03.07
> > Qt IDE: 1.9.3/5.15.2(5.15.2)
> > Platform: Darwin 64
> > Installer: J903 install
> > InstallPath: /users/rauldmiller/applications/j903
> > Contact: www.jsoftware.com
> >
> > What happens for you? (Any error messages? Can you create a file with
> > that name using fwrite?)
> >
> > Thanks,
> >
> > --
> > Raul
> >
> > On Tue, Nov 23, 2021 at 10:49 AM R.E. Boss <r.e.boss at outlook.com> wrote:
> > >
> > > Any reason why
> > >   pd 'save jpg "filename.jpg"'
> > > does not work anymore, whereas
> > >   pd 'save png "filename.png"'
> > > still works?
> > >
> > > Engine: j903/j64avx2/windows
> > > Beta-v: commercial/2021-11-16T21:47:12
> > > Library: 9.03.06
> > > Qt IDE: 1.9.2/5.12.10(5.12.10)
> > > Platform: Win 64
> > > Installer: J903 install
> > > InstallPath: c:/program files/j903
> > > Contact: www.jsoftware.com
> > >
> > >
> > > R.E. Boss
> > >
> > > --------------------------------------------------------------------
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