I had tried again and might had found a solution. Apparently just
loading qtlib under jconsole failed to locate the qt plugin folder. It
needs to set env QT_PLUGIN_PATH to the path of J bin directory where
contains the Qt dll files. This can be automated by adding a line
into jconsole.cmd
@rem load J console
@rem run from the J install directory
@cd /d %~dp0
@set QT_PLUGIN_PATH=%~dp0bin
@bin\jconsole.exe
then click on jconsole.cmd to launch
2!:5'QT_PLUGIN_PATH'
D:\j805\bin
load'ide/qt/qtlib'
$readimg_jqtide_ jpath '~temp/toucan.png'
144 200
$readimg_jqtide_ jpath '~temp/toucan.jpg'
144 200
On Wed, May 10, 2017 at 3:32 PM, Ric Sherlock <[email protected]> wrote:
> Hi Bill,
> Just to add that I get the same behaviour you describe on win-xp with jqt
> and jconsole on Windows 7.
>
>
> On Wed, May 10, 2017 at 7:02 PM, bill lam <[email protected]> wrote:
>
>> I can duplicate the behavior on win-xp. reading jpg was ok on jqt but
>> failed on jconsole.
>>
>> I think the issue is loading jqt.dll under windows jconsole cannot
>> loading files in imageformats.
>>
>> png does not have such problem since png support is always built-in
>> inside qt core dlls and does not need additional dll.
>>
>> On Wed, May 10, 2017 at 12:22 PM, bill lam <[email protected]> wrote:
>> > Hi Ric,
>> > Does jpg work on windows using jqt instead of jconsole?
>> >
>> > Ср, 10 май 2017, Ric Tikkanz написал(а):
>> >> Hi Bill,
>> >> I have the same versions of all packages as you on both Linux and
>> Windows.
>> >> On Linux I can successfully read and write jpg and png. On Windows I can
>> >> read and write png, but not jpg.
>> >>
>> >> readimg_jqtide_ 'toucan.png' NB. works fine on Windows & Linux
>> >> readimg_jqtide_ 'toucan.jpg' NB. works on Linux but not Windows
>> >> 'writetoucan.png' writeimg_jqtide_~ readimg_jqtide_ 'toucan.png' NB.
>> works
>> >> fine on Windows & Linux
>> >> 'writetoucan.jpg' writeimg_jqtide_~ readimg_jqtide_ 'toucan.png' NB.
>> works
>> >> fine on Linux but not Windows
>> >>
>> >>
>> >> Cheers,
>> >>
>> >> On Wed, May 10, 2017 at 1:43 PM, bill lam <[email protected]> wrote:
>> >>
>> >> > Thanks Ric for the procedure, but I can not reproduce the issue
>> >> > on j805 linux64 with the latest addons. My environment
>> >> > JVERSION
>> >> > Engine: j806/j64avx/linux
>> >> > Beta: commercial/2017-04-30T15:56:43
>> >> > Library: 8.05.14
>> >> > Platform: Linux 64
>> >> > Installer: unknown
>> >> > InstallPath: /usr/share/j/8.05
>> >> > Contact: www.jsoftware.com
>> >> >
>> >> > 1!:0 jpath'~temp/toucan*'
>> >> > +----------+------------------+-----+---+------+----------+
>> >> > |toucan.png|2017 4 12 19 20 18|20278|rw-|------|-rw-r-----|
>> >> > +----------+------------------+-----+---+------+----------+
>> >> > |toucan.jpg|2017 4 12 19 20 18|7497 |rw-|------|-rw-r-----|
>> >> > +----------+------------------+-----+---+------+----------+
>> >> >
>> >> > 3{."1 'search'jpkgv'qt'
>> >> > +------+-------+-------+
>> >> > |ide/qt|1.1.118|1.1.118|
>> >> > +------+-------+-------+
>> >> > 3{."1 'search'jpkgv'graphics'
>> >> > +----------------+-------+-------+
>> >> > |graphics/afm |1.0.14 |1.0.14 |
>> >> > |graphics/bmp |1.0.13 |1.0.13 |
>> >> > |graphics/cairo |1.0.8 |1.0.8 |
>> >> > |graphics/color |1.0.17 |1.0.17 |
>> >> > |graphics/d3 |0.0.7 |0.0.7 |
>> >> > |graphics/fvj4 |1.0.16 |1.0.16 |
>> >> > |graphics/gl2 |1.0.93 |1.0.93 |
>> >> > |graphics/gnuplot|1.0.6 |1.0.6 |
>> >> > |graphics/graph |1.0.21 |1.0.21 |
>> >> > |graphics/jpeg |1.0.17 |1.0.17 |
>> >> > |graphics/pdfdraw|1.0.5 |1.0.5 |
>> >> > |graphics/plot |1.0.182|1.0.182|
>> >> > |graphics/png |1.0.25 |1.0.25 |
>> >> > |graphics/print |1.0.16 |1.0.16 |
>> >> > |graphics/treemap|1.0.15 |1.0.15 |
>> >> > |graphics/viewmat|1.0.82 |1.0.82 |
>> >> > +----------------+-------+-------+
>> >> >
>> >> >
>> >> > Ср, 10 май 2017, Ric Tikkanz написал(а):
>> >> > > When I start a j805 jconsole on Windows 7, then load 'ide/qt/qtlib'
>> >> > > I can successfully read and write png files using readimg_jqtide_
>> and
>> >> > > writeimg_jqtide_,
>> >> > > but if I try and read a jpeg image file, I also get an empty matrix
>> of
>> >> > > shape 0 0 that Devon reports above.
>> >> > >
>> >> > > load 'ide/qt/qtlib'
>> >> > > $readimg_jqtide_ jpath '~temp/toucan.png'
>> >> > > 144 200
>> >> > > $readimg_jqtide_ jpath '~temp/toucan.jpg'
>> >> > > 0 0
>> >> > >
>> >> > >
>> >> > > JVERSION
>> >> > > Engine: j805/j64/windows
>> >> > > Release: commercial/2016-12-11T08:02:16
>> >> > > Library: 8.05.14
>> >> > > Platform: Win 64
>> >> > > Installer: J805 install
>> >> > > InstallPath: c:/program files/j64-805
>> >> > > Contact: www.jsoftware.com
>> >> > >
>> >> > > On Wed, May 10, 2017 at 8:17 AM, Devon McCormick <
>> [email protected]>
>> >> > wrote:
>> >> > >
>> >> > > > Now the mystery deepens: despairing of figuring out what I'd done
>> >> > > > previously to "fix" J (allow it to load the JQt image libraries
>> even
>> >> > when
>> >> > > > running from jconsole), I installed J 8.04 on my new machine in
>> >> > preparation
>> >> > > > of diff'ing it against my customized version but, to my surprise,
>> the
>> >> > image
>> >> > > > library works fine under jconsole in 8.04 without me changing
>> >> > anything. It
>> >> > > > still fails under J 8.05.
>> >> > > >
>> >> > > > This was a fresh install, downloaded from Jsoftware.com, so the
>> only
>> >> > > > customization remaining would be in my own startup scripts, the
>> same
>> >> > ones
>> >> > > > that run under J 8.05.
>> >> > > >
>> >> > > > In any case, I can continue my work under J 8.04.
>> >> > > >
>> >> > > > On Mon, Mar 13, 2017 at 2:31 AM, Devon McCormick <
>> [email protected]>
>> >> > > > wrote:
>> >> > > >
>> >> > > > > OK - I'm using Windows 7 on AMD on this new machine - it may be
>> >> > something
>> >> > > > > to do with this configuration.
>> >> > > > >
>> >> > > > > On Sun, Mar 12, 2017 at 10:37 PM, bill lam <[email protected]
>> >
>> >> > wrote:
>> >> > > > >
>> >> > > > >> There is no recent changes in wdreadimg or jqt binaries.
>> >> > > > >> I tested readimg under jconsole worked ok on linux64.
>> >> > > > >>
>> >> > > > >> Вс, 12 мар 2017, Devon McCormick написал(а):
>> >> > > > >> > OK - but now I find that the underlying DLL call to
>> "wdreadimg"
>> >> > gives
>> >> > > > >> me a
>> >> > > > >> > 0 0 matrix result. However, this is a new PC, so I'm not
>> sure
>> >> > there
>> >> > > > >> isn't
>> >> > > > >> > something else funny going on.
>> >> > > > >> >
>> >> > > > >> > On Sun, Mar 12, 2017 at 5:49 AM, bill lam <
>> [email protected]>
>> >> > > > wrote:
>> >> > > > >> >
>> >> > > > >> > > If you are not running jqt, loading all jqt definitions can
>> >> > > > >> > > cause conflicts and be harmful. If you know what you are
>> doing,
>> >> > > > >> > > you can run
>> >> > > > >> > > load 'ide/qt/qtlib'
>> >> > > > >> > > which enable some qt facilities for non-Qt platforms.
>> >> > > > >> > >
>> >> > > > >> > > Sorry for inconvenience, the changes should have happened
>> in
>> >> > > > >> > > j806 beta.
>> >> > > > >> > >
>> >> > > > >> > > Вс, 12 мар 2017, Devon McCormick написал(а):
>> >> > > > >> > > > It looks like the problem is that I work under emacs
>> using
>> >> > > > >> jconsole, and
>> >> > > > >> > > > there's a switch using "IFQT" that avoids load qtlib for
>> me.
>> >> > > > >> > > >
>> >> > > > >> > > > On Sun, Mar 12, 2017 at 5:20 AM, bill lam <
>> >> > [email protected]>
>> >> > > > >> wrote:
>> >> > > > >> > > >
>> >> > > > >> > > > > Yes there was some refactorization on the image and
>> hash
>> >> > cover
>> >> > > > >> > > > > verbs, but they should work as now. What is your
>> version of
>> >> > > > qtide
>> >> > > > >> > > > > addon? The verb should be in jqtide locale in the file
>> >> > > > >> > > > > ~addons/ide/qt/qtlib.ijs which should be loaded
>> >> > automatically
>> >> > > > >> > > > > while loading qtide addons. Please provide more
>> >> > information so
>> >> > > > >> > > > > that I can check. Thanks.
>> >> > > > >> > > > >
>> >> > > > >> > > > >
>> >> > > > >> > > > > Вс, 12 мар 2017, Devon McCormick написал(а):
>> >> > > > >> > > > > > I used to find code to read and write .JPGs in the
>> jqtide
>> >> > > > >> namespace
>> >> > > > >> > > but
>> >> > > > >> > > > > > this seems to have disappeared in recent versions of
>> J -
>> >> > I'm
>> >> > > > on
>> >> > > > >> J
>> >> > > > >> > > 8.05.
>> >> > > > >> > > > > >
>> >> > > > >> > > > > > Did this migrate somewhere? Is here another image
>> >> > > > >> reader/writer that
>> >> > > > >> > > > > > people use? It seems I have to re-ask this question
>> every
>> >> > > > >> couple of
>> >> > > > >> > > > > years
>> >> > > > >> > > > > > because this keeps changing.
>> >> > > > >> > > > > >
>> >> > > > >> > > > > > Regards,
>> >> > > > >> > > > > >
>> >> > > > >> > > > > > Devon
>> >> > > > >> > > > > > --
>> >> > > > >> > > > > >
>> >> > > > >> > > > > > Devon McCormick, CFA
>> >> > > > >> > > > > >
>> >> > > > >> > > > > > Quantitative Consultant
>> >> > > > >> > > > > > ------------------------------
>> >> > ------------------------------
>> >> > > > >> > > ----------
>> >> > > > >> > > > > > For information about J forums see
>> >> > http://www.jsoftware.com/
>> >> > > > >> > > forums.htm
>> >> > > > >> > > > >
>> >> > > > >> > > > > --
>> >> > > > >> > > > > regards,
>> >> > > > >> > > > > ====================================================
>> >> > > > >> > > > > GPG key 1024D/4434BAB3 2008-08-24
>> >> > > > >> > > > > gpg --keyserver subkeys.pgp.net --recv-keys 4434BAB3
>> >> > > > >> > > > > gpg --keyserver subkeys.pgp.net --armor --export
>> 4434BAB3
>> >> > > > >> > > > > ------------------------------
>> >> > ------------------------------
>> >> > > > >> ----------
>> >> > > > >> > > > > For information about J forums see
>> >> > > > http://www.jsoftware.com/forum
>> >> > > > >> s.htm
>> >> > > > >> > > >
>> >> > > > >> > > >
>> >> > > > >> > > >
>> >> > > > >> > > >
>> >> > > > >> > > > --
>> >> > > > >> > > >
>> >> > > > >> > > > Devon McCormick, CFA
>> >> > > > >> > > >
>> >> > > > >> > > > Quantitative Consultant
>> >> > > > >> > > > ------------------------------
>> ------------------------------
>> >> > > > >> ----------
>> >> > > > >> > > > For information about J forums see
>> >> > http://www.jsoftware.com/forum
>> >> > > > >> s.htm
>> >> > > > >> > >
>> >> > > > >> > > --
>> >> > > > >> > > regards,
>> >> > > > >> > > ====================================================
>> >> > > > >> > > GPG key 1024D/4434BAB3 2008-08-24
>> >> > > > >> > > gpg --keyserver subkeys.pgp.net --recv-keys 4434BAB3
>> >> > > > >> > > gpg --keyserver subkeys.pgp.net --armor --export 4434BAB3
>> >> > > > >> > > ------------------------------
>> ------------------------------
>> >> > > > >> ----------
>> >> > > > >> > > For information about J forums see
>> >> > http://www.jsoftware.com/forum
>> >> > > > >> s.htm
>> >> > > > >> > >
>> >> > > > >> >
>> >> > > > >> >
>> >> > > > >> >
>> >> > > > >> > --
>> >> > > > >> >
>> >> > > > >> > Devon McCormick, CFA
>> >> > > > >> >
>> >> > > > >> > Quantitative Consultant
>> >> > > > >> > ------------------------------------------------------------
>> >> > > > ----------
>> >> > > > >> > For information about J forums see http://www.jsoftware.com/
>> >> > > > forums.htm
>> >> > > > >>
>> >> > > > >> --
>> >> > > > >> regards,
>> >> > > > >> ====================================================
>> >> > > > >> GPG key 1024D/4434BAB3 2008-08-24
>> >> > > > >> gpg --keyserver subkeys.pgp.net --recv-keys 4434BAB3
>> >> > > > >> gpg --keyserver subkeys.pgp.net --armor --export 4434BAB3
>> >> > > > >> ------------------------------------------------------------
>> >> > ----------
>> >> > > > >> For information about J forums see http://www.jsoftware.com/
>> >> > forums.htm
>> >> > > > >>
>> >> > > > >
>> >> > > > >
>> >> > > > >
>> >> > > > > --
>> >> > > > >
>> >> > > > > Devon McCormick, CFA
>> >> > > > >
>> >> > > > > Quantitative Consultant
>> >> > > > >
>> >> > > > >
>> >> > > >
>> >> > > >
>> >> > > > --
>> >> > > >
>> >> > > > Devon McCormick, CFA
>> >> > > >
>> >> > > > Quantitative Consultant
>> >> > > > ------------------------------------------------------------
>> ----------
>> >> > > > For information about J forums see http://www.jsoftware.com/
>> forums.htm
>> >> > > >
>> >> > > ------------------------------------------------------------
>> ----------
>> >> > > For information about J forums see http://www.jsoftware.com/
>> forums.htm
>> >> >
>> >> > --
>> >> > regards,
>> >> > ====================================================
>> >> > GPG key 1024D/4434BAB3 2008-08-24
>> >> > gpg --keyserver subkeys.pgp.net --recv-keys 4434BAB3
>> >> > gpg --keyserver subkeys.pgp.net --armor --export 4434BAB3
>> >> > ------------------------------------------------------------
>> ----------
>> >> > For information about J forums see http://www.jsoftware.com/
>> forums.htm
>> >> >
>> >> ----------------------------------------------------------------------
>> >> For information about J forums see http://www.jsoftware.com/forums.htm
>> >
>> > --
>> > regards,
>> > ====================================================
>> > GPG key 1024D/4434BAB3 2008-08-24
>> > gpg --keyserver subkeys.pgp.net --recv-keys 4434BAB3
>> > gpg --keyserver subkeys.pgp.net --armor --export 4434BAB3
>> ----------------------------------------------------------------------
>> For information about J forums see http://www.jsoftware.com/forums.htm
>>
> ----------------------------------------------------------------------
> For information about J forums see http://www.jsoftware.com/forums.htm
----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm
