On 07/29/2013 07:50 AM, András Murányi wrote:
On Thu, Nov 25, 2010 at 10:19 AM, Frank Barknecht <[email protected]
<mailto:[email protected]>> wrote:
Hi,
On Thu, Nov 25, 2010 at 03:28:01AM +0100, András Murányi wrote:
> Cool, i was wandering around in the rj lib but i couldn't find
how this thing
> works. Can you just tell me in a nutshell please?
yeah, it's a bit convoluted, to make it play nice in the
background without a
user ever having to see a single sssad object ...
Anyway the real interesting feature you will like is not so much
the "saveonly"
message but local saving which is enabled by adding something like
"$0" as
second argument to your [sssad] objects. Such local sssad objects
cannot be controlled
via sending to "SSSAD_ADMIN" anymore! Instead you have to send to
"$0-SSSAD_ADMIN".
In rj, the [u_sssad] objects are copies of sssad.pd and they are
hidden
in [u_dispatch] objects. These objects are in almost every rj
abstraction and
handle two things: Dispatching of "tagged messages" from an inlet
to local
receivers and saving the sssad-parameters.
For example a [u_dispatch $0 freq] will turn messages like "freq
440" into a
"440" sent to [s $0-freq] and it will also save "440" into a local(!)
sssad-parameter called "freq" that is local to the value of $0.
Now a second utility abstraction, [u_loader] will build a bridge
between these
local sssads with their $0-SSSAD_ADMIN receivers and two global
receivers
called RJ_SCENE_LOAD and RJ_SCENE_SAVE. Actually these are
seldomly used in
rjdj scenes.
A typical idiom to get the state of all sssads in one abstraction
is to send
"save" to the $0-SSSAD_ADMIN in ony abstraction, then collect all
the responses
into messages and save these into message boxes. This is handled
inside of
[u_loader] and can be seen all over the rj library, expecially in
Andy's synths
like s_ejun or s_cwc.
If this sounds too complicated and you want to just have a presettable
abstraction, you just need to do this:
1) add a [u_loader abstractionname-$1 $0] object
2) add a [u_dispatch $0 parametername] object for every parameter
3) daisychain all [u_dispatch] with connections and connect the
first one to an inlet.
3.1) Optionally: Connect [u_loader]'s outlet to an outlet and
route incoming
"save" messages to its inlet to save settings in the parent
patch, e.g. with [u_cocollect]
4) Call you abstractions with unique tags as first argument
Now try sending stuff to RJ_SCENE_SAVE and RJ_SCENE_LOAD and to
the inlets of
your abstractions.
Ciao
--
Frank Barknecht Do You RjDj.me? _
______footils.org__
Huh, I'm trying to pick this up (after 3 years...)
Honestly, currently my IQ seems to be less than satisfactory to
understand and utilize the advice. (It's also almost 40 degrees C here
so I'll have to think out loud...)
- is the SSSAD in s-abstractions recent enough for these tricks?
(http://code.google.com/p/s-abstractions/source/browse/#svn%2Ftrunk%2Fsssad)
- is there an example patch of SSSAD local saving available? i just
wish to see/understand how to save and load presets exclusive for an
abstraction instance.
- or, please, is it possible to list the steps of creating SSSAD local
saving for an abstraction? (eventually using [presetstore]... which I
have attached because it's not hosted anywhere any more)?
- is at viable at all to avoid using rjlib for this (and to use 'pure'
SSSAD), or I couldn't get away without all that patching that is in
u_loader, u_dispatch, u_cocollect etc?
...sorry for the dependent mental state in which I am! :-o
I don't think it's your mental state. Those tools are clunky.
Have you looked at Ivica's [preset_hub] in Pd-l2ork? You simply name
the [preset_hub],
and all the [preset_node] objects with the same name on that canvas or a
child of it
(including abstractions) work together. No need to use dollarsign
arguments at all.
All state is saved with the patch and adding/removing nodes works
seamlessly, even with
infinite undo.
His preset system even makes an automatic, hidden connection back into
the [preset_node]
so you don't get crossed wires.
-Jonathan
András
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