[Gwyddion-users] connect pygwy to existing gwyddion instance

[niv levy]

Hi,
I'd like to open files through a minimal pygwy script with some applied
filtering and datafield / layer selection, and then continue playing with
the files interactively in gwyddion after the script closes. .
I would have thought gwy.gwy_app_file_load(filename) would open the file in
an existing instance, but it seems not to - i get an open window, and can
open the data browser, but i can't seem to open the main / toolbox window,
and it is not connected to a running instance of gwyddion (and of course
closes when i quit python). Am i missing something obvious here? Is there a
different way to open the file that would do this?
niv

[David Nečas (Yeti)]

Post by niv levy
I'd like to open files through a minimal pygwy script with some applied
filtering and datafield / layer selection, and then continue playing with
the files interactively in gwyddion after the script closes. .
I would have thought gwy.gwy_app_file_load(filename) would open the file in
an existing instance, but it seems not to - i get an open window, and can
open the data browser, but i can't seem to open the main / toolbox window,
and it is not connected to a running instance of gwyddion (and of course
closes when i quit python). Am i missing something obvious here?

Not sure how obvious, but Gwyddion does not have a server-client
architecture. Every running instance of Gwyddion and every standalone
Pygwy script is simply an independent program. So the ‘app’ in your
script is the script itself and any data management functions apply to
data loaded/created by the script.

Post by niv levy
Is there a
different way to open the file that would do this?

You can write the file to disk and run

gwyddion --remote-FOO file.gwy

where FOO is ‘new’ or ‘existing’ (or possibly ‘query’) depending on what
you need, see the manual page. Note --remote-new does not terminate if
Gwyddion is not running because it runs the new instance.

Regards,

Yeti

[niv levy]

thanks - that solved my confusion.
niv

Post by niv levy

Post by niv levy
I'd like to open files through a minimal pygwy script with some applied
filtering and datafield / layer selection, and then continue playing with
the files interactively in gwyddion after the script closes. .
I would have thought gwy.gwy_app_file_load(filename) would open the file

in

Post by niv levy
an existing instance, but it seems not to - i get an open window, and can
open the data browser, but i can't seem to open the main / toolbox

window,

Post by niv levy
and it is not connected to a running instance of gwyddion (and of course
closes when i quit python). Am i missing something obvious here?

Not sure how obvious, but Gwyddion does not have a server-client
architecture. Every running instance of Gwyddion and every standalone
Pygwy script is simply an independent program. So the ‘app’ in your
script is the script itself and any data management functions apply to
data loaded/created by the script.

Post by niv levy
Is there a
different way to open the file that would do this?

You can write the file to disk and run
gwyddion --remote-FOO file.gwy
where FOO is ‘new’ or ‘existing’ (or possibly ‘query’) depending on what
you need, see the manual page. Note --remote-new does not terminate if
Gwyddion is not running because it runs the new instance.
Regards,
Yeti
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