From 7b6482872ec06317028bacf6cb694a479b942d56 Mon Sep 17 00:00:00 2001 From: Hans-Christoph Steiner Date: Fri, 22 Aug 2003 00:20:54 +0000 Subject: added 0.37 version from pddp_referencesfiles.zip svn path=/trunk/; revision=890 --- doc/pddp/help-spigot.pd | 119 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 119 insertions(+) create mode 100644 doc/pddp/help-spigot.pd (limited to 'doc/pddp/help-spigot.pd') diff --git a/doc/pddp/help-spigot.pd b/doc/pddp/help-spigot.pd new file mode 100644 index 00000000..03629bdf --- /dev/null +++ b/doc/pddp/help-spigot.pd @@ -0,0 +1,119 @@ +#N canvas 94 12 862 647 10; +#X msg 16 96 0.5 1000; +#X floatatom 47 160 1 0 0; +#X obj 16 177 spigot; +#X obj 16 198 print; +#X msg 28 136 walk the cat; +#X msg 22 116 bang; +#X obj 35 11 spigot; +#X text 83 11 - pass or block messages; +#X text 72 160 control: nonzero to pass messages \, zero to stop them +; +#X text 12 294 USING [SPIGOT] TO CREATE A GATE.; +#X text 15 309 Unlike its closest cousin MAX \, PD does not have a +native [gate] object. There are other PD libraries which include gates +for both audio and numerical data \, but similar routines can be built +in PD using [spigot]. The example below shows a two-way gate using +two [spigots] and the [expr] object.; +#X obj 95 505 spigot; +#X floatatom 96 459 1 0 0; +#X text 113 458 controls: open and close the gates.; +#X floatatom 31 527 5 0 0; +#X floatatom 95 527 5 0 0; +#X obj 15 400 tgl 15 0 empty empty empty 0 -6 0 8 -262144 -1 -1 0 1 +; +#X obj 15 418 metro 200; +#X obj 15 439 f; +#X obj 39 439 + 1; +#X obj 126 484 expr 1-$f1; +#X text 32 398 Click to start sending info through the gates.; +#X obj 96 439 loadbang; +#X text 16 38 [spigot] passes messages from its left inlet to its outlet +\, as long as a nonzero number is sent to its right inlet. When its +right inlet gets zero \, incoming messages are "blocked" (i.e. ignored). +; +#X text 14 231 [spigot] works essentially like a doorway. When the +door is open \, messages can pass through. When the door is closed +\, messages are ignored. By default \, the door is always closed!; +#X obj 31 505 spigot; +#X text 13 547 In the example above \, the magic is created by the +[expr] object which performs a simple calculation using the incoming +number (1 or 0). Note that the figure "$f1" is a variable which assumes +the value of the incoming number.; +#X text 402 36 CREATION ARGUMENTS?; +#X obj 416 98 spigot 0; +#X text 404 196 [SPIGOT] FOR AUDIO SIGNALS?; +#X text 417 213 [spigot] does not work with audio signals. The data +types which are accepted by this object are floats \, symbols \, lists +\, bangs \, anythings and pointers. However \, audio signals require +a completely different treatment.; +#X text 414 265 PD does not have a [spigot] for audio signals \, but +the same effect can be created using the following structure:; +#X obj 418 312 osc~ 800; +#X obj 386 15 bng 15 250 50 0 empty empty empty 0 -6 0 8 -262144 -1 +-1; +#X obj 386 596 bng 15 250 50 0 empty empty empty 0 -6 0 8 -262144 -1 +-1; +#X obj 418 369 *~; +#X floatatom 431 352 1 0 0; +#X obj 400 447 env~; +#X floatatom 400 468 5 0 0; +#X msg 628 341 \; pd dsp \$1 \;; +#X obj 628 322 tgl 15 0 empty empty empty 0 -6 0 8 -262144 -1 -1 0 +1; +#X obj 445 466 dac~; +#X obj 445 446 *~ 0.05; +#X text 645 323 Turn on audio computation first.; +#X text 449 357 Here is the [spigot].; +#X text 448 370 When "0" \, audio signal; +#X text 447 386 is effectively blocked.; +#X text 448 400 When "1" \, audio signal is; +#X text 448 415 not effected in any way.; +#X text 406 498 RELATED OBJECTS; +#N canvas 0 0 454 304 related_objects_from_other_libraries 0; +#X obj 40 36 gate; +#X text 18 86 These objects are offered in PD only if you have downloaded +and properly installed the appropriate library. These objects may or +may not exist in a single library.; +#X text 17 135 The best places to find information about PD's libraries +is:; +#X text 14 157 www.pure-data.org and click on "Downloads" then "Software" +; +#X text 15 173 or; +#X text 16 187 iem.kug.ac.at/pdb/; +#X restore 419 519 pd related_objects_from_other_libraries; +#X text 453 574 This document was updated for PD version 0.35 test +26 by Dave Sabine as part of a project called pddp proposed by Krzysztof +Czaja to build comprehensive documentation for PD.; +#X obj 416 170 spigot cat; +#X obj 490 170 spigot dog; +#X text 415 119 It also accepts any symbol \, but all of these are +meaningless and have no effect on the operation of the object.; +#X text 416 54 [spigot] only accepts one numerical creation argument: +a zero. At creation time the [spigot] is "closed". So this creation +argument is not needed and is rather useless.; +#X connect 0 0 2 0; +#X connect 1 0 2 1; +#X connect 2 0 3 0; +#X connect 4 0 2 0; +#X connect 5 0 2 0; +#X connect 11 0 15 0; +#X connect 12 0 20 0; +#X connect 12 0 25 1; +#X connect 16 0 17 0; +#X connect 17 0 18 0; +#X connect 18 0 19 0; +#X connect 18 0 11 0; +#X connect 18 0 25 0; +#X connect 19 0 18 1; +#X connect 20 0 11 1; +#X connect 22 0 12 0; +#X connect 25 0 14 0; +#X connect 32 0 35 0; +#X connect 33 0 34 0; +#X connect 35 0 37 0; +#X connect 35 0 42 0; +#X connect 36 0 35 1; +#X connect 37 0 38 0; +#X connect 40 0 39 0; +#X connect 42 0 41 0; -- cgit v1.2.1