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#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.puredata.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;
|
