Pd-list September 2009

pd-list@lists.iem.at

137 participants
191 discussions

Re: [PD] Stochastic rhythms in pd
by Gerard Paresys 21 Sep '09

21 Sep '09

I use a chaotic function in these patches: http://pagesperso-orange.fr/Paresys/ARGOPd/Ex11.html http://pagesperso-orange.fr/Paresys/ARGOPd/Ex13.html Gerard At 19:34 -0700 20/09/09, Jerome Covington wrote: >Has anyone done any work with percussive elements in pd, other than >more traditional drum machine, looping applications? > >Something that generates seemingly random, preferably sparse rhythmic >elements based, or not, on some minimal user input? > >Are there any patches that anyone would like to share? > >-- >Regards, >Jerome Covington > . . . . : . . . . : >"define audio development"

2 1

Blender and pd...for Nick...HEHEHE
by Jose Luis Santorcuato 21 Sep '09

21 Sep '09

Hi friends.... well... i stay working hard in order to connect Blender with Arduino and Pure Data, with Arduino i can... but basically move the plane...i follow the example.... i downloaded the gui for pd and the serial port to connect arduino with pd, but i dont know install the osc... or i need workink with pyduino... pduino... the websites talk about connect pduino and blender...with pyduino... very confuse... I work on ubuntu 8.10...and i like blender... Thanks a lot Best regards from Chile José -- http://www.chilemigra.cl http://arselectronicachile.blogspot.com http://www.myspace.com/santorcuato

1 0

Re: [PD] Mirror video & save picture, how?
by Marco Donnarumma 20 Sep '09

20 Sep '09

Hi Simon, answers below > hi list, > this is my first post... > i try to make a patch which will mirror my webcaminput and then display it. > to be more precise: it should take half of the picture and send it to the > other side, where normally the other half would be, additionally it should > be mirrored horizontally. the effect achieved looks like a photobooth effect > (in osx) don't know the name though. so the patch is fairly easy to setup. i > just did a pix_crop to get half of the webcam and then sent the signal > through two pix_separator's. after i applied on one a pix_flip horizontally. > to display this i used two pix_textures going to two rectangle objects. the > positioning is done via translateXYZ. so far so good. i can see the picture > that i want in the gemwindow. > > however, i see no way to save the picture. the pix_write object just > takes one pix "stream", so the mirroring effect will be lost. is there a way > to combine to streams into one again, like pix_join or merge? or is there > another way? > [pix_write] takes a snapshot of everything is rendered in the GEM window. It doesn't have anything to do with different pix_ streams (different [gemhead] chains). I don't see [pix_write] in your patch anyway try: [gemhead 99] | [pix_write] sending [auto 0( message to [pix_write] makes it take a snapshot everytime you send a bang. [auto 1( message makes it take a snapshot of every rendered frame (so 25fps means you will get 25 snapshot per second). > > also, the positioning of the first rectangle does affect the > positioning of the second, if i move the first (created) rectangle via > translateXYZ the second one get's moved as well. why is that? maybe i do it > all wrong, im not an experienced pd/gem user, just did audio so far. > You could try to substitute [pix_separator] with [separator]. This way here everything is working fine. > > thanks for your time and answers, > > simon > > ps: i attached the patch. > > > -- Marco Donnarumma aka The !S.A.D! Independent New Media Arts Professional, Performer - Roma, IT LAB: http://www.thesaddj.com | http://www.flxer.net EVENT: http://www.liveperformersmeeting.net

1 0

MouseState X-Y Coordinates
by Alex Lucas 20 Sep '09

20 Sep '09

Hi everyone, Is there any way of making MouseState output X-Y coordinates which are relative to the patch window rather than the screen as a whole? Thanks, Alex

5 4

macosx multiple istance
by Lazzaro Nicolò Ciccolella 20 Sep '09

20 Sep '09

Hi, i try to port on osx a pd installation made on linux ubuntu where i run two istance on pd. I am relatively new on macosx, how to launch two istance (1 for audio and 1 for gem) of pd-extended ? many thanks in advance -- Lazzaro

2 2

Mirror video & save picture, how?
by simoniten＠hispeed.ch 20 Sep '09

20 Sep '09

hi list, this is my first post... i try to make a patch which will mirror my webcaminput and then display it. to be more precise: it should take half of the picture and send it to the other side, where normally the other half would be, additionally it should be mirrored horizontally. the effect achieved looks like a photobooth effect (in osx) don't know the name though. so the patch is fairly easy to setup. i just did a pix_crop to get half of the webcam and then sent the signal through two pix_separator's. after i applied on one a pix_flip horizontally. to display this i used two pix_textures going to two rectangle objects. the positioning is done via translateXYZ. so far so good. i can see the picture that i want in the gemwindow. however, i see no way to save the picture. the pix_write object just takes one pix "stream", so the mirroring effect will be lost. is there a way to combine to streams into one again, like pix_join or merge? or is there another way? also, the positioning of the first rectangle does affect the positioning of the second, if i move the first (created) rectangle via translateXYZ the second one get's moved as well. why is that? maybe i do it all wrong, im not an experienced pd/gem user, just did audio so far. thanks for your time and answers, simon ps: i attached the patch.

2 2

[pd REFERENCE] format [was: Re: Pd META: Author/Help Patch Authors]
by Mathieu Bouchard 20 Sep '09

20 Sep '09

On Sat, 5 Sep 2009, Jonathan Wilkes wrote: > I've been assuming that one of the aims of tags (i.e., keywords) is that > there would be a search window in the browser so you can search for > relevant help patches/tutorial patches/ etc. Or maybe an actual patch, > since Hans has said that the keywords should be "parsable in pd." There > are already some categories from which simple, standard keywords may be > used, but for some terms like "frequency modulation" there's the > aforementioned problem of the space between the words. Given that, > frequency_modulation is certainly one solution, and users can get used > to using underscores when searching, but why not also include "fm" and > "modulation" in case the user happens to type that (which would be > completely reasonable)? Typically, with tags, the user has access to the list of all currently existing tags, so that the user can choose from there. You could have a feature to search by regexp and/or thesaurus on the list of tags, but when you look for a tag in patches, the goal is sort of to have one concept per tag and one tag per concept, no synonyms, no homonyms. > > What's a tag? > A keyword. That's pretty terse. What are the expectations about tags? what about synonyms and homonyms? what do the tags mean, that the whole text of the patch doesn't? Because, what's the advantage of searching in tags vs searching in the whole text? > I saw your nick in the irc discussion of the PDDP, didn't you actually > take part in some of these decisions? What??... what does "take part" mean to you? I don't understand. I don't recall my opinions being represented in PDDP, but then, I don't recall trying to push them. _ _ __ ___ _____ ________ _____________ _____________________ ... | Mathieu Bouchard, Montréal, Québec. téléphone: +1.514.383.3801

2 1

pix_film and pd-0.42.5
by marius schebella 20 Sep '09

20 Sep '09

hi, I have the strange feeling that pix_film (yesterday's gem version) cannot load files under pd-0.42.5 on OSX. can someone confirm this? I keep getting error: [pix_filmQT]: Unable to find file: marius.

2 2

Array Enhancements
by Si Mills 19 Sep '09

19 Sep '09

Hi Hans/DEv Tem I have a couple of ideas for the Array/Table object, mainly visual: Hide Array name - doesn't seem to be working. Would it be possible to limit the array vertically? This would make manually entering values for a sequencer more usable. Allow a step value for each slider, so selecting increments is easier - I guess an Array in Pd is a array of multi-sliders in a sense Expand appearance - the array indexes could be solid bars Event listeners - so onMouseUp over an array could trigger something Colour properties! .... I know this is probably flawed for I know not the inner technical workings of Pd, or for its purposes, there are other more suitable methods for gui interaction, but is any of this possible? cheers

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Re: [PD] Pd META: Author/Help Patch Authors
by Jonathan Wilkes 19 Sep '09

19 Sep '09

--- On Tue, 9/1/09, Hans-Christoph Steiner <hans(a)at.or.at> wrote: > From: Hans-Christoph Steiner <hans(a)at.or.at> > Subject: Re: [PD] Pd META: Author/Help Patch Authors > To: "Jonathan Wilkes" <jancsika(a)yahoo.com> > Cc: pd-list(a)iem.at > Date: Tuesday, September 1, 2009, 7:15 PM > > On Sep 1, 2009, at 1:08 PM, Jonathan Wilkes wrote: > > > --- On Tue, 9/1/09, Jonathan Wilkes <jancsika(a)yahoo.com> > wrote: > > > >> From: Jonathan Wilkes <jancsika(a)yahoo.com> > >> Subject: Re: [PD] Pd META: Author/Help Patch > Authors > >> To: "Hans-Christoph Steiner" <hans(a)at.or.at> > >> Cc: pd-list(a)iem.at > >> Date: Tuesday, September 1, 2009, 5:47 PM > >> > >> > >> --- On Tue, 9/1/09, Hans-Christoph Steiner <hans(a)at.or.at> > >> wrote: > >> > >>> From: Hans-Christoph Steiner <hans(a)at.or.at> > >>> Subject: Re: [PD] Pd META: Author/Help Patch > Authors > >>> To: "Jonathan Wilkes" <jancsika(a)yahoo.com> > >>> Cc: pd-list(a)iem.at > >>> Date: Tuesday, September 1, 2009, 4:05 PM > >>> > >>> On Sep 1, 2009, at 12:41 AM, Jonathan Wilkes > wrote: > >>> > >>>> > >>>> > >>>> --- On Tue, 9/1/09, Hans-Christoph Steiner > <hans(a)at.or.at> > >>> wrote: > >>>> > >>>>> From: Hans-Christoph Steiner <hans(a)at.or.at> > >>>>> Subject: Re: [PD] Pd META: Author/Help > Patch > >>> Authors > >>>>> To: "Jonathan Wilkes" <jancsika(a)yahoo.com> > >>>>> Cc: pd-list(a)iem.at > >>>>> Date: Tuesday, September 1, 2009, 5:00 > AM > >>>>> > >>>>> It is Pd, so I think we should at > least make > >> an > >>> effort to > >>>>> make things easy to parse in Pd. > I tried > >>> your parser > >>>>> using data that is probably closer to > what > >> we > >>> might use, and > >>>>> it didn't work at > all. If someone > >>> can get a > >>>>> Pd parser working that can handle the > commas > >> well, > >>> then I > >>>>> would be OK using commas in the meta > data > >> format. > >>>>> > >>>>> Here's my data: > >>>>> tags - pure data, frequency > modulation, > >> synthesis > >>>> > >>>> Hi Hans, > >>>> I wouldn't expect my > example > >>> to work as a general solution. If you > >>>> want a general solution, I'd be happy to > take a > >> stab > >>> at it, but you > >>>> haven't said what you want Pd to do with > the > >> data > >>> example you've provided > >>>> above. > >>> > >>> Ah, sorry, I thought you'd followed the > object_db.tcl > >>> plugin discussion and the [pd META] discussion > with > >>> Frank. Basically, the object_db.tcl > plugin builds a > >>> multilevel menu for finding objects based on > tags. > >> I'm > >>> am sure people will think of other uses for > the > >> tags. > >>> Frank suggested using comma separated tags in > his [pd > >>> REFERENCE] format, the PDDP group came to the > >> conclusion > >>> that the meta data should be easily parsable > by Pd, > >> and I > >>> still think that's a good idea. > >>> > >>> So the idea is to have every help patch have a > [pd > >> META] > >>> subpatch, and in it, have a comment with > tags. > >>> > >>> .hc > >> > >> Oh, ok. I'll have a look at that > discussion. > >> > >> -Jonathan > > > > Yes, I have seen this discussion. But I'm still > confused: are commas > > a problem in tcl? If not, I still don't > understand the problem (see > > attached). > > > > > > <file.pd><parser.pd> > > > Tcl's not the problem, its Pd's parser. It interprets > commas as a > separator between messages. Since there isn't an > escape mechanism, it > means handling commas, semi-colons, etc. is difficult > unless you are > wanting the behavior of Pd's parser. > > If we use commas as the delimiter for individual tags, then > just > removing the commas means you don't know if you have > multi-word tags > or just single word tags. So if you have: > > tags - frequency modulation, synth > > and its parsed as: > > tags frequency modulation synth > > then key information is lost. Ok. (see attached) -Jonathan > > .hc > > > ---------------------------------------------------------------------------- > > Programs should be written for people to read, and only > incidentally > for machines to execute. > - from Structure and Interpretation of Computer > Programs > >

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Pd-list September 2009