Pd-list April 2006

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136 participants
232 discussions

pd 0.38 crashing in windows
by Julian Peterson 16 Apr '06

16 Apr '06

Please help-- I teach a course in PD and have a student who has run into the problem of frequent persistent crashing of PD on Windows. As I am a linux/unix/osx user, I'm not in a very good position to help him resolve this issue. PD once worked without issue. Now it crashes during normal use of canonical objects within the first five minutes of running. He has tried uninstalling and reinstalling PD but this has not resolved his problem. The symptom is persistent with both PD-extended and Miller's PD. Thanks in advance for your advice... both he and I appreciate it. Julian Peterson

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Re: [PD] resizing a GOP-canvas
by patco 16 Apr '06

16 Apr '06

Hi, did someone has finally found a trick for resizing Graph-On-Parent? Maybe it could be done with some tcl script with [tot]? I've seen in the archive that many pd users are waiting for that trick to be implemented, maybe it has been done yet, if so, what is the magical message that will allow us to change GOP xpix and ypix? I've almost finished a patch that is creating dynamically a sequencer with toggles and number boxes, the only limit of this patch seems to be this missing feature, because for exemple, we can't set the number of steps of the sequencer without the need of resizing the gop*. This patch would certainly be able to create different kinds of other patches with different graphed sizes in a near future if resizing gop would be possible... I am sure that a book could be written on all the features that could be accomplished with this missing trick... *: Obviously i could avoid to use a GOP for doing this, but it's necessary because using the [clear( message in a gop is thousand times more simple than trying to [find( and [cut( and [findagain( and [cut( the objects. Patco. --------------------------------- Faites de Yahoo! votre page d'accueil sur le web pour retrouver directement vos services prÃ©fÃ©rÃ©s : vÃ©rifiez vos nouveaux mails, lancez vos recherches et suivez l'actualitÃ© en temps rÃ©el. Cliquez ici.

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Motion Tracking etc
by Jonathan Goodwin 16 Apr '06

16 Apr '06

Hi, Have tried searching this one, but no results - maybe I'm looking for the wrong things! I'm looking for some pointers on motion tracking preferably in PD, but maybe in another app if it's more suited. Please forgive these broad queries about dev techniques...I'm still new to this game, and although now somewhat capable at picking apart other people's examples and learning that way, I'm not great yet at figuring out ways to start things from scratch! Basically, I'm looking to use a webcam (i-sight f.wire) to capture the actions of people in front of a projector screen, basically simulating shadows/representations. I want these 'shadows' to remain on the screen for longer depending on how long they stand there. Also, when they move, I want a shadow to follow them on the screen like a trail. I.e. A fainter shadow for passing motion that will disappear quickly, but a more intense shadow that stays for longer if the person stands still. I thought a way I could do this would be to constantly capture images of people, say every 5 secs, and overlay these images onto the screen for a set amount of time. Therefore, if a person stood still for longer then more layers of these images would build up, therefore taking longer to disappear. But I would need some kind of tracking system to only image the movement, otherwise I would be constantly photographing the background and/or the empty room! What things/considerations should I be at looking at to achieve something like this if it is possible? Can PD or GEM etc grab stills from a webcam? Apologies for long mail, hope all is understood! Cheers Jonathan P.S. I've been looking at alternative systems using the new Flash 8 and Processing. But I'd prefer a PD based solution if poss, as I'm (currently!) no programmer!

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Re: RRADICAL pb in restore
by Frank Barknecht 16 Apr '06

16 Apr '06

Hallo, Olivier Revollat hat gesagt: // Olivier Revollat wrote: > I have tryed rradical because I think that is very what I need in pure data > ..... so I read the documentation .... > > Evrything seem to work fine : OSC messages (wit OSCx), store preset to a > file, > (with pool external) ... But I have a problem on retore params .... I have > try sevral > patch to under stand what's wrong but I DON'T UNSERSTAND WHAT'S HAPPEN .. I > explain : > > for example, I have try memento_unittest.pd (rradical/memento/exemples) : > > I choose a file to store preset : ex : test.dat. > then I change the value of /radio (for example) a click (SAVE) and then my > test.dat contain : > , , > "test" , , > "test" 0 , "/radio" , 2 > > I change again the value of /radio and click (PRINT) : > > test 0 , /radio , 7 > > Then I click (RESTORE) and (PRINT) > > test 0 , /radio , 2 > > Evrything seems OK because /radio have recall it's previous value : 2 > > But the slider (/radio) have not change his value and still show the old > value : 7 > > I try the test on diffrent kind of configuration with diffrent kind of gui > or not gui controls , numbers .... it's always the same : RESTORE SEEM TO > WORK (PRINT show me the restored value) BUT THE CONTROLS ALWAYS SHOW THE OLD > VALUE... Yes, that's correct and it's intentional. To also set the sliders you need to send a "set" message to every [originator]. This is easy to do if you use the "hidden" receive target: "SET_ALL_RRADICALS", that is mentioned in the help patch for originator. What is happening here is the following: loading a state from disk or from memory is considered a different operation than actually activating this or another state and because of this they are handled by two different messages to [originator]: "substate NUMBER" loads a substate NUMBER and "set" activates the currently loaded substate. Both can be done in one step as well by using the combined message "setsub NUMBER" Now what you load through the "careGUI" actually is a collection of many such substates. "careGUI" cannot know which one to activate, so activation is in your responsibility and you should use a "substate NUM", set" or "setsub NUM" message. You can use the outlet of [careGUI] to start this activation: It will receive a "bang" after a new file was loaded. Ciao -- Frank Barknecht _ ______footils.org_ __goto10.org__

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compile pd on ubuntu 5.10
by João Miguel Pais 16 Apr '06

16 Apr '06

Hi, I just installed ubuntu on my thinkpad, and was trying to compile pd there. Apt-get and the package administrator only install an earlier version, so I guess it's necessary for now to do it from the tar.gz file. The compilation fails, because the c compiler can't output the right file format (?). Did this already happened to someone? I'm sure it's a basic thing, but for me that's not basic at all. I join the config.log file, if it isn't getting too personal. Greets and thanks, JoÃ£o Miguel Pais -- Lugostr. 14 79100 Freiburg i. Br. Deutschland +49 (0)761 7074997 jmmmpais(a)googlemail.com http://www.puredata.org/Members/jmmmp

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Help with "pack" / lists
by cyborgk＠nocturnalnoize.com 16 Apr '06

16 Apr '06

The attached patch doesn't work... I can do it a different way, but I want to know WHY this doesn't work, and what would be a better approach. I'd like to minimize use of externals as far as possible, but I do have the pd-extended 0.38.4 ... Anyway, based on the help file for pack, I can't see any reason why this patch shouldn't work. The more general question: without using prepend, how would I attach a new message on to the start of a given message, or a list of floats: ie. I want "1 0 0 0 1 0 1 0" to become "setPtn 1 0 0 0 1 0 1 0". Maybe this is stuff I need with the new list: but I can't use the help for "list" because I'm on 0.38.4, and it breaks in this version; and I can't use the newer pd, without breaking all my libraries that are already installed (and nobody could explain how to make pd 0.39+ play nice with my current install on winXP). So I don't really even know what that [list] object is supposed to do... When I send it a list, it just bangs! ~David

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Scrub tool?
by Chuckk Hubbard 16 Apr '06

16 Apr '06

This is just a thought I had while writing with my sequencer. In most commercial sequencing and notation programs, there is a scrub tool, for moving the cursor manually across the notes and hearing them play. It seems at first thought that it would be impossible with a score made from scalars, but maybe it would be possible to convert the score, whenever the scrub tool is selected, into a qlist format or something, and the mouse output would reference that? I can't see converting to an array working, since placement and duration of the notes is what determines whether they are currently sounding. Maybe if the array elements had x and y floats, and perhaps x referenced start time and y referenced duration. Or two arrays, where one would just have ticks for every 8th of a beat, and convert that to check another array containing every combination of notes. The first array would just say at what point to move to the next element of the second. First it could go through the score at every 60th of a beat checking what notes are active, with a [change] object to add a new element with every change and mark its position... Possible? -Chuckk -- "It is not when truth is dirty, but when it is shallow, that the lover of knowledge is reluctant to step into its waters." -Friedrich Nietzsche, "Thus Spoke Zarathustra"

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dynamic gui
by Damian Stewart 16 Apr '06

16 Apr '06

no need to respond - just checked the archives more fully :-) -- f r e y live music with computers http://www.frey.co.nz

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dynamic ui creation
by Damian Stewart 16 Apr '06

16 Apr '06

is there any way to dynamically create ui elements? it'd be awesome, for example, to be able to create a new object, say 'sequencer 12 3', and have a new GOP sequencer appear with 12 vertical sliders, one for each time step, with every 3rd slider marked out as a different colour. -- f r e y live music with computers http://www.frey.co.nz

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Correctly upgrade Pd...
by Olivier Revollat 16 Apr '06

16 Apr '06

HI, I use Pure data on linux fedora with the Planet CCRMA pakages ... My version of Pd is 0.37 and I have download pd-extended (0.38) from (http://pure-data.sourceforge.net/download.php) as a linux binary package... the instruction for installation is : make install but I have some externals that I have compiled and install in /usr/lib/pd/extra and I don't want to erase them but do the "make install" command ... Should I uninstall Pd 0.37 before do the make install of pd-extended-0.38 ? (yum remove pd (on fedora)) In fact, my question is How to updrade my version of pd with the package that i've download without erase the previous installed externals ? and I also want to know how can I use the externals of pd-extended-0.38 without having conflits with the same externals (how could exist in my previous external directory of the previous pd version /usr/lib/pd/extra/) Thanks a lot. _________________________________________________________________ Express yourself instantly with MSN Messenger! Download today it's FREE! http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/

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Pd-list April 2006