Hello all.
Since starting Uni this year I have gotten really into Pd! I'm still reading up and learning the basics but have tried and tried to get my head around the $ parameter (parameter?) but can't
Can someone break it down into a very basic explanation so I can take that with me to the help files for further understanding.
As I see it, $ pretty much denotes storage of a variable, either float or symbol, and works only locally. When added to an object it means: take incoming value and store it under $1 (or $2 e.t.c) for recall later. If there is a series of in incoming values $1 will always refer to the first value and $2 to the second. Sometimes you don't want to recall it, but need to tell the object to store a value in order to process it with the very next action, such as in
OBJECT: openpanel > MESSAGE: read $1 destination > OBJECT: soundfiler
Am I right, somewhat right, or dangerously wrong?
And lastly I get this in the Pd window everytime it starts up (Pd extended on Mac), is that heathly?:
libdir loader $Revision: 1.8 $ written by Hans-Christoph Steiner hans@at.or.at compiled on Jul 29 2008 at 04:03:05 compiled against Pd version 0.40.3.extended /Applications/Pure Data/Pd-extended.app/Contents/Resources/extra/Gem/Gem.pd_darwin: dlopen(/Applications/Pure Data/Pd-extended.app/Contents/Resources/extra/Gem/Gem.pd_darwin, 10): Library not loaded: /usr/X11R6/lib/libfreetype.6.dylib Referenced from: /Applications/Pure Data/Pd-extended.app/Contents/Resources/extra/Gem/Gem.pd_darwin Reason: image not found Gem: can't load library libdir_loader: added 'cyclone' to the global objectclass path libdir_loader: added 'zexy' to the global objectclass path libdir_loader: added 'creb' to the global objectclass path libdir_loader: added 'cxc' to the global objectclass path libdir_loader: added 'iemlib' to the global objectclass path libdir_loader: added 'list-abs' to the global objectclass path libdir_loader: added 'mapping' to the global objectclass path libdir_loader: added 'markex' to the global objectclass path libdir_loader: added 'maxlib' to the global objectclass path libdir_loader: added 'memento' to the global objectclass path libdir_loader: added 'mjlib' to the global objectclass path libdir_loader: added 'motex' to the global objectclass path libdir_loader: added 'oscx' to the global objectclass path libdir_loader: added 'pddp' to the global objectclass path libdir_loader: added 'pdogg' to the global objectclass path libdir_loader: added 'pixeltango' to the global objectclass path libdir_loader: added 'pmpd' to the global objectclass path libdir_loader: added 'rradical' to the global objectclass path libdir_loader: added 'sigpack' to the global objectclass path libdir_loader: added 'smlib' to the global objectclass path libdir_loader: added 'toxy' to the global objectclass path libdir_loader: added 'unauthorized' to the global objectclass path libdir_loader: added 'pan' to the global objectclass path libdir_loader: added 'freeverb' to the global objectclass path libdir_loader: added 'hcs' to the global objectclass path libdir_loader: added 'jmmmp' to the global objectclass path libdir_loader: added 'ext13' to the global objectclass path libdir_loader: added 'ggee' to the global objectclass path libdir_loader: added 'flib' to the global objectclass path libdir_loader: added 'ekext' to the global objectclass path libdir_loader: added 'flatspace' to the global objectclass path /Applications/Pure Data/Pd-extended.app/Contents/Resources/extra/pdp.pd_darwin: dlopen(/Applications/Pure Data/Pd-extended.app/Contents/Resources/extra/pdp.pd_darwin, 10): Library not loaded: /usr/X11R6/lib/libX11.6.dylib Referenced from: /Applications/Pure Data/Pd-extended.app/Contents/Resources/extra/pdp.pd_darwin Reason: image not found pdp: can't load library /Applications/Pure Data/Pd-extended.app/Contents/Resources/extra/pidip.pd_darwin: dlopen(/Applications/Pure Data/Pd-extended.app/Contents/Resources/extra/pidip.pd_darwin, 10): Library not loaded: /usr/X11R6/lib/libX11.6.dylib Referenced from: /Applications/Pure Data/Pd-extended.app/Contents/Resources/extra/pidip.pd_darwin Reason: image not found pidip: can't load library
///////////
Thanks so much everyone.
Hi Afif,
The dollar can have more than one meaning depending on where it is used.
When it is in a message box, like [1 $1 3 $2( it behaves as a substitution operator. The nth element of a list will be substituted in the $n position and the list message is passed on. So, if a two element list 2, 4 was presented to the message box above the result would be a four element list 1, 2, 3, 4
When it is used in other object boxes in the form $1 or $2 etc it becomes the $nth parameter of an abstraction. In other words, if you create an abstraction (separate pd file) called [myabs] and create an instance like [myabs 10 20 30] then inside that instance $1 will have a value of 10, $2 a value of 20 and $3 will equal 30.
A special use is where you declare $0. This always has a unique value per patch (or abstraction instance). It can be used to prefix a variable name so that it is unique. For example, arrays must always have a unique name. You can create an array called $0-a in an abstraction, and if you make several copies of that abstraction the array names will not clash.
On Sat, 25 Oct 2008 15:15:28 +0100 "Arif Driessen" arifd86@gmail.com wrote:
Hello all.
Since starting Uni this year I have gotten really into Pd! I'm still reading up and learning the basics but have tried and tried to get my head around the $ parameter (parameter?) but can't
Can someone break it down into a very basic explanation so I can take that with me to the help files for further understanding.
As I see it, $ pretty much denotes storage of a variable, either float or symbol, and works only locally. When added to an object it means: take incoming value and store it under $1 (or $2 e.t.c) for recall later. If there is a series of in incoming values $1 will always refer to the first value and $2 to the second. Sometimes you don't want to recall it, but need to tell the object to store a value in order to process it with the very next action, such as in
OBJECT: openpanel > MESSAGE: read $1 destination > OBJECT: soundfiler
Am I right, somewhat right, or dangerously wrong?
And lastly I get this in the Pd window everytime it starts up (Pd extended on Mac), is that heathly?:
libdir loader $Revision: 1.8 $ written by Hans-Christoph Steiner hans@at.or.at compiled on Jul 29 2008 at 04:03:05 compiled against Pd version 0.40.3.extended /Applications/Pure Data/Pd-extended.app/Contents/Resources/extra/Gem/Gem.pd_darwin: dlopen(/Applications/Pure Data/Pd-extended.app/Contents/Resources/extra/Gem/Gem.pd_darwin, 10): Library not loaded: /usr/X11R6/lib/libfreetype.6.dylib Referenced from: /Applications/Pure Data/Pd-extended.app/Contents/Resources/extra/Gem/Gem.pd_darwin Reason: image not found Gem: can't load library libdir_loader: added 'cyclone' to the global objectclass path libdir_loader: added 'zexy' to the global objectclass path libdir_loader: added 'creb' to the global objectclass path libdir_loader: added 'cxc' to the global objectclass path libdir_loader: added 'iemlib' to the global objectclass path libdir_loader: added 'list-abs' to the global objectclass path libdir_loader: added 'mapping' to the global objectclass path libdir_loader: added 'markex' to the global objectclass path libdir_loader: added 'maxlib' to the global objectclass path libdir_loader: added 'memento' to the global objectclass path libdir_loader: added 'mjlib' to the global objectclass path libdir_loader: added 'motex' to the global objectclass path libdir_loader: added 'oscx' to the global objectclass path libdir_loader: added 'pddp' to the global objectclass path libdir_loader: added 'pdogg' to the global objectclass path libdir_loader: added 'pixeltango' to the global objectclass path libdir_loader: added 'pmpd' to the global objectclass path libdir_loader: added 'rradical' to the global objectclass path libdir_loader: added 'sigpack' to the global objectclass path libdir_loader: added 'smlib' to the global objectclass path libdir_loader: added 'toxy' to the global objectclass path libdir_loader: added 'unauthorized' to the global objectclass path libdir_loader: added 'pan' to the global objectclass path libdir_loader: added 'freeverb' to the global objectclass path libdir_loader: added 'hcs' to the global objectclass path libdir_loader: added 'jmmmp' to the global objectclass path libdir_loader: added 'ext13' to the global objectclass path libdir_loader: added 'ggee' to the global objectclass path libdir_loader: added 'flib' to the global objectclass path libdir_loader: added 'ekext' to the global objectclass path libdir_loader: added 'flatspace' to the global objectclass path /Applications/Pure Data/Pd-extended.app/Contents/Resources/extra/pdp.pd_darwin: dlopen(/Applications/Pure Data/Pd-extended.app/Contents/Resources/extra/pdp.pd_darwin, 10): Library not loaded: /usr/X11R6/lib/libX11.6.dylib Referenced from: /Applications/Pure Data/Pd-extended.app/Contents/Resources/extra/pdp.pd_darwin Reason: image not found pdp: can't load library /Applications/Pure Data/Pd-extended.app/Contents/Resources/extra/pidip.pd_darwin: dlopen(/Applications/Pure Data/Pd-extended.app/Contents/Resources/extra/pidip.pd_darwin, 10): Library not loaded: /usr/X11R6/lib/libX11.6.dylib Referenced from: /Applications/Pure Data/Pd-extended.app/Contents/Resources/extra/pidip.pd_darwin Reason: image not found pidip: can't load library
///////////
Thanks so much everyone.
Thanks Andy,
Took me a few reads to get my head around but I think I've got it now. Thank you. :)
(Unfortunately, abstraction was the other word that plagued me, I forgot to mention)
On Sat, Oct 25, 2008 at 3:43 PM, Andy Farnell padawan12@obiwannabe.co.ukwrote:
Hi Afif,
The dollar can have more than one meaning depending on where it is used.
When it is in a message box, like [1 $1 3 $2( it behaves as a substitution operator. The nth element of a list will be substituted in the $n position and the list message is passed on. So, if a two element list 2, 4 was presented to the message box above the result would be a four element list 1, 2, 3, 4
When it is used in other object boxes in the form $1 or $2 etc it becomes the $nth parameter of an abstraction. In other words, if you create an abstraction (separate pd file) called [myabs] and create an instance like [myabs 10 20 30] then inside that instance $1 will have a value of 10, $2 a value of 20 and $3 will equal 30.
A special use is where you declare $0. This always has a unique value per patch (or abstraction instance). It can be used to prefix a variable name so that it is unique. For example, arrays must always have a unique name. You can create an array called $0-a in an abstraction, and if you make several copies of that abstraction the array names will not clash.
On Sat, 25 Oct 2008 15:15:28 +0100 "Arif Driessen" arifd86@gmail.com wrote:
Hello all.
Since starting Uni this year I have gotten really into Pd! I'm still
reading
up and learning the basics but have tried and tried to get my head around the $ parameter (parameter?) but can't
Can someone break it down into a very basic explanation so I can take
that
with me to the help files for further understanding.
As I see it, $ pretty much denotes storage of a variable, either float or symbol, and works only locally. When added to an object it means: take incoming value and store it under $1 (or $2 e.t.c) for recall later. If there is a series of in incoming values $1 will always refer to the first value and $2 to the second. Sometimes you don't want to recall it, but
need
to tell the object to store a value in order to process it with the very next action, such as in
OBJECT: openpanel > MESSAGE: read $1 destination > OBJECT: soundfiler
Am I right, somewhat right, or dangerously wrong?
And lastly I get this in the Pd window everytime it starts up (Pd
extended
on Mac), is that heathly?:
libdir loader $Revision: 1.8 $ written by Hans-Christoph Steiner hans@at.or.at compiled on Jul 29 2008 at 04:03:05 compiled against Pd version 0.40.3.extended /Applications/Pure Data/Pd-extended.app/Contents/Resources/extra/Gem/Gem.pd_darwin: dlopen(/Applications/Pure Data/Pd-extended.app/Contents/Resources/extra/Gem/Gem.pd_darwin, 10): Library not loaded: /usr/X11R6/lib/libfreetype.6.dylib Referenced from: /Applications/Pure Data/Pd-extended.app/Contents/Resources/extra/Gem/Gem.pd_darwin Reason: image not found Gem: can't load library libdir_loader: added 'cyclone' to the global objectclass path libdir_loader: added 'zexy' to the global objectclass path libdir_loader: added 'creb' to the global objectclass path libdir_loader: added 'cxc' to the global objectclass path libdir_loader: added 'iemlib' to the global objectclass path libdir_loader: added 'list-abs' to the global objectclass path libdir_loader: added 'mapping' to the global objectclass path libdir_loader: added 'markex' to the global objectclass path libdir_loader: added 'maxlib' to the global objectclass path libdir_loader: added 'memento' to the global objectclass path libdir_loader: added 'mjlib' to the global objectclass path libdir_loader: added 'motex' to the global objectclass path libdir_loader: added 'oscx' to the global objectclass path libdir_loader: added 'pddp' to the global objectclass path libdir_loader: added 'pdogg' to the global objectclass path libdir_loader: added 'pixeltango' to the global objectclass path libdir_loader: added 'pmpd' to the global objectclass path libdir_loader: added 'rradical' to the global objectclass path libdir_loader: added 'sigpack' to the global objectclass path libdir_loader: added 'smlib' to the global objectclass path libdir_loader: added 'toxy' to the global objectclass path libdir_loader: added 'unauthorized' to the global objectclass path libdir_loader: added 'pan' to the global objectclass path libdir_loader: added 'freeverb' to the global objectclass path libdir_loader: added 'hcs' to the global objectclass path libdir_loader: added 'jmmmp' to the global objectclass path libdir_loader: added 'ext13' to the global objectclass path libdir_loader: added 'ggee' to the global objectclass path libdir_loader: added 'flib' to the global objectclass path libdir_loader: added 'ekext' to the global objectclass path libdir_loader: added 'flatspace' to the global objectclass path /Applications/Pure Data/Pd-extended.app/Contents/Resources/extra/pdp.pd_darwin: dlopen(/Applications/Pure Data/Pd-extended.app/Contents/Resources/extra/pdp.pd_darwin, 10): Library not loaded: /usr/X11R6/lib/libX11.6.dylib Referenced from: /Applications/Pure Data/Pd-extended.app/Contents/Resources/extra/pdp.pd_darwin Reason: image not found pdp: can't load library /Applications/Pure Data/Pd-extended.app/Contents/Resources/extra/pidip.pd_darwin: dlopen(/Applications/Pure Data/Pd-extended.app/Contents/Resources/extra/pidip.pd_darwin, 10):
Library
not loaded: /usr/X11R6/lib/libX11.6.dylib Referenced from: /Applications/Pure Data/Pd-extended.app/Contents/Resources/extra/pidip.pd_darwin Reason: image not found pidip: can't load library
///////////
Thanks so much everyone.
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