[PD] up-down saw-wave

Frank Barknecht fbar at footils.org
Mon Nov 20 13:18:48 CET 2006


Hallo,
Frank Barknecht hat gesagt: // Frank Barknecht wrote:

> Attached patch illustrates his approach with a "message based" phasor
> and compares it to your clipping method.

Actually the message-phasor wasn't a "phasor" in the previous patch,
it already was a triangle! Attached is the fixed version which should
show that I wasn't trying to cheat with that error.

Ciao
-- 
 Frank Barknecht                 _ ______footils.org_ __goto10.org__
-------------- next part --------------
#N canvas 254 96 747 724 10;
#N canvas 0 0 450 300 (subpatch) 0;
#X array \$0-min 882 float 0;
#X coords 0 1 881 -1 200 130 1;
#X restore 463 276 graph;
#X text 462 414 ---- 0.02 seconds ----;
#X obj 295 55 tgl 15 0 empty empty empty 0 -6 0 8 -262144 -1 -1 0 1
;
#X obj 295 77 metro 193;
#X floatatom 94 61 5 0 0 0 - - -;
#X text 86 38 frequency;
#X obj 118 135 *~ -1;
#X obj 118 160 +~ 1;
#X obj 94 221 min~;
#N canvas 0 0 450 300 (subpatch) 0;
#X array \$0-phas 882 float 0;
#X coords 0 1 881 -1 200 130 1;
#X restore 463 16 graph;
#N canvas 0 0 450 300 (subpatch) 0;
#X array \$0-1-phas 882 float 0;
#X coords 0 1 881 -1 200 130 1;
#X restore 463 146 graph;
#X obj 295 131 tabwrite~ \$0-phas;
#X obj 295 239 tabwrite~ \$0-1-phas;
#X text 419 394 -1;
#X text 422 275 1;
#X text 137 244 rescale;
#X text 160 163 1-phasor;
#X obj 94 82 phasor~ 192;
#X obj 68 472 / 100;
#X floatatom 68 449 5 0 0 0 - - -;
#X obj 98 526 * -1;
#X obj 68 572 min;
#X obj 68 497 t a a;
#X obj 168 489 hsl 128 15 0 1 0 0 empty empty phasor -2 -8 1 10 -262144
-1 -1 12700 1;
#X obj 168 566 hsl 128 15 0 1 0 0 empty empty 1-phasor -2 -8 1 10 -262144
-1 -1 0 1;
#X obj 168 616 hsl 128 15 0 1 0 0 empty empty triangle -2 -8 1 10 -262144
-1 -1 0 1;
#X obj 98 549 + 1;
#N canvas 0 0 395 371 auto 0;
#X obj 118 85 inlet;
#X obj 118 254 outlet;
#X msg 118 174 0 \, 100 1000;
#X obj 118 227 line 0 20;
#X obj 118 111 metro 1000;
#X connect 0 0 4 0;
#X connect 2 0 3 0;
#X connect 3 0 1 0;
#X connect 4 0 2 0;
#X restore 68 428 pd auto;
#X obj 295 343 tabwrite~ \$0-min;
#X text 59 380 triangle ramp for messages:;
#X msg 134 221 1;
#X msg 164 221 2;
#X obj 94 244 *~ 1;
#X msg 101 577 1;
#X msg 131 577 2;
#X obj 68 599 * 1;
#N canvas 0 0 471 591 clipped-version 0;
#X obj 98 147 / 100;
#X floatatom 98 124 5 0 0 0 - - -;
#X obj 128 201 * -1;
#X obj 98 172 t a a;
#X obj 198 283 hsl 128 15 0 1 0 0 empty empty phasor -2 -8 1 10 -262144
-1 -1 0 1;
#X obj 198 351 hsl 128 15 0 1 0 0 empty empty 1-phasor -2 -8 1 10 -262144
-1 -1 6350 1;
#X obj 198 501 hsl 128 15 0 1 0 0 empty empty triangle -2 -8 1 10 -262144
-1 -1 0 1;
#X obj 128 224 + 1;
#N canvas 0 0 395 371 auto 0;
#X obj 118 85 inlet;
#X obj 118 254 outlet;
#X msg 118 174 0 \, 100 1000;
#X obj 118 227 line 0 20;
#X obj 118 111 metro 1000;
#X connect 0 0 4 0;
#X connect 2 0 3 0;
#X connect 3 0 1 0;
#X connect 4 0 2 0;
#X restore 98 103 pd auto;
#X obj 128 308 clip 0 0.5;
#X obj 98 256 clip 0 0.5;
#X obj 98 357 +;
#X text 89 55 triangle ramp for messages using clipped "phasors";
#X obj 98 384 - 0.5;
#X msg 114 422 1;
#X msg 144 422 2;
#X obj 98 454 * 1;
#X obj 98 84 tgl 15 0 empty empty empty 17 7 0 10 -262144 -1 -1 0 1
;
#X connect 0 0 3 0;
#X connect 1 0 0 0;
#X connect 2 0 7 0;
#X connect 3 0 10 0;
#X connect 3 1 2 0;
#X connect 7 0 9 0;
#X connect 8 0 1 0;
#X connect 9 0 11 1;
#X connect 9 0 5 0;
#X connect 10 0 4 0;
#X connect 10 0 11 0;
#X connect 11 0 13 0;
#X connect 13 0 16 0;
#X connect 14 0 16 1;
#X connect 15 0 16 1;
#X connect 16 0 6 0;
#X connect 17 0 8 0;
#X restore 461 526 pd clipped-version;
#X obj 68 409 tgl 15 0 empty empty empty 17 7 0 10 -262144 -1 -1 0
1;
#X text 312 614 the triangle "wave" is built by always using the smaller
value ("min") of the two "phasors";
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#X connect 30 0 32 1;
#X connect 31 0 32 1;
#X connect 32 0 28 0;
#X connect 33 0 35 1;
#X connect 34 0 35 1;
#X connect 35 0 25 0;
#X connect 37 0 27 0;


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