#N struct 1031-centroid float x; #N canvas 0 26 626 572 10; #X floatatom 129 468 5 0 0 0 centroid - -; #X msg 129 363 1 1 1 1; #X msg 245 260 0 0 0 0; #X msg 245 279 -1 1; #X obj 215 469 bng 15 250 50 0 empty empty result_undefined 17 7 1 10 -262144 -1 -1; #X msg 129 245 0 1 0; #X obj 129 439 list-centroid; #X text 63 25 [list-centroid]; #X text 93 90 centroid = sum(mi * i) / sum(mi); #X text 71 49 Calculates the centroid or center of mass of a list of floats according to:; #X text 67 115 where the index i starts from 0; #X msg 247 344 -1 3; #X msg 129 287 1 2 3; #X text 314 270 these two are undefined!; #X msg 129 341 5 5 5; #N canvas 0 0 450 300 randlist 0; #X obj 134 129 until; #X msg 246 151 set; #X msg 134 193 add2 \$1; #X obj 112 101 t b f b; #X obj 135 249 outlet; #X obj 112 31 inlet; #X obj 112 73 + 1; #X obj 112 53 random 10; #X obj 134 151 random 10; #X obj 134 171 - 5; #X connect 0 0 8 0; #X connect 1 0 4 0; #X connect 2 0 4 0; #X connect 3 0 4 0; #X connect 3 1 0 0; #X connect 3 2 1 0; #X connect 5 0 7 0; #X connect 6 0 3 0; #X connect 7 0 6 0; #X connect 8 0 9 0; #X connect 9 0 2 0; #X restore 295 337 pd randlist; #X msg 295 363 4; #X msg 295 315 bang; #X msg 129 306 10 20 30; #X msg 129 267 0 2 0 0 0 1; #X msg 248 325 -1 2; #X msg 248 407 -10 9; #X text 305 406 Note: a centroid can be negative!; #X text 75 520 2007 Frank Barknecht; #X text 67 146 Negative values are possible.; #X text 65 174 If all floats add up to 0 \, the result is undefined. In this case \, no result will be sent to the first outlet \, instead the second outlet will bang and a console warning will be issued.; #N canvas 318 53 641 556 graphical-centroid 0; #N canvas 0 0 450 300 randlist 0; #X obj 134 129 until; #X msg 246 151 set; #X msg 134 193 add2 \$1; #X obj 112 101 t b f b; #X obj 135 249 outlet; #X obj 112 31 inlet; #X obj 134 151 random 100; #X obj 134 171 / 100; #X msg 112 59 10; #X connect 0 0 6 0; #X connect 1 0 4 0; #X connect 2 0 4 0; #X connect 3 0 4 0; #X connect 3 1 0 0; #X connect 3 2 1 0; #X connect 5 0 8 0; #X connect 6 0 7 0; #X connect 7 0 2 0; #X connect 8 0 3 0; #X restore 79 388 pd randlist; #X msg 79 366 bang; #X obj 79 447 list prepend 0; #X obj 79 470 s \$0-tab; #N canvas 0 0 450 300 (subpatch) 0; #X array \$0-tab 10 float 0; #X coords 0 1 9 0 200 140 1; #X restore 79 105 graph; #N canvas 0 0 694 427 \$0-c 0; #X scalar 1031-centroid 0 \;; #X coords 0 0 18 140 200 140 1; #X restore 79 105 pd \$0-c; #X floatatom 339 346 5 0 0 0 - - -; #X obj 339 313 list-centroid; #N canvas 336 319 712 355 \$0-centroid 0; #X obj 19 329 outlet; #X obj 19 86 route change; #X obj 19 62 struct \$0-centroid float x; #X obj 228 62 drawpolygon 900 2 x 0 x 140; #X connect 1 0 0 0; #X connect 2 0 1 0; #X restore 453 315 pd \$0-centroid; #X obj 339 367 set \$0-centroid x; #N canvas 0 0 503 429 create 0; #X msg 242 258 traverse pd-\$1 \, bang; #X obj 242 238 symbol \$0-c; #X msg 107 79 0; #X obj 242 278 pointer; #X msg 243 178 clear; #X obj 243 205 s pd-\$0-c; #X obj 107 302 append \$0-centroid x; #X obj 107 114 t a b b; #X obj 107 50 loadbang; #X obj 107 326 outlet; #X connect 0 0 3 0; #X connect 1 0 0 0; #X connect 2 0 7 0; #X connect 3 0 6 1; #X connect 4 0 5 0; #X connect 6 0 9 0; #X connect 7 0 6 0; #X connect 7 1 1 0; #X connect 7 2 4 0; #X connect 8 0 2 0; #X restore 468 339 pd create; #X obj 339 127 metro 50; #X obj 339 102 tgl 15 0 empty empty show-centroid 17 7 1 10 -258699 -262144 -1 0 1; #N canvas 473 338 450 300 countto 0; #X obj 131 154 f 0; #X obj 156 153 + 1; #X msg 174 113 0; #X obj 131 183 outlet; #X obj 131 59 inlet; #X obj 131 116 until; #X obj 131 96 t a b; #X connect 0 0 1 0; #X connect 0 0 3 0; #X connect 1 0 0 1; #X connect 2 0 0 1; #X connect 4 0 6 0; #X connect 5 0 0 0; #X connect 6 0 5 0; #X connect 6 1 2 0; #X restore 362 195 pd countto; #X obj 362 219 tabread \$0-tab; #X obj 362 249 list prepend; #X obj 452 249 t a; #X msg 362 175 10; #X obj 339 148 t b b b; #X obj 339 274 list; #X text 77 30 Switch on the "show-centroid"-metro and play with the values in the array.; #X obj 79 344 loadbang; #X msg 79 414 0.56 0.59 0.8 0.98 0.3 0.64 0.96 0.57 0.55 0.08; #X connect 0 0 22 0; #X connect 1 0 0 0; #X connect 2 0 3 0; #X connect 6 0 9 0; #X connect 7 0 6 0; #X connect 8 0 9 1; #X connect 10 0 9 1; #X connect 11 0 18 0; #X connect 12 0 11 0; #X connect 13 0 14 0; #X connect 14 0 15 0; #X connect 15 0 16 0; #X connect 15 0 19 1; #X connect 16 0 15 1; #X connect 17 0 13 0; #X connect 18 0 19 0; #X connect 18 1 17 0; #X connect 18 2 15 1; #X connect 19 0 7 0; #X connect 21 0 1 0; #X connect 22 0 2 0; #X restore 392 510 pd graphical-centroid; #X text 321 510 Also see:; #N canvas 520 35 494 396 META 0; #X text 12 5 KEYWORDS control list_op; #X text 12 25 LICENSE SIBSD; #X text 12 135 AUTHOR Frank Barknecht; #X text 12 155 HELP_PATCH_AUTHORS Frank Barknecht. "pd meta" information added by Jonathan Wilkes for Pd version 0.42.; #X text 12 75 INLET_0 list; #X text 12 95 OUTLET_0 float; #X text 12 115 OUTLET_1 bang; #X text 12 45 DESCRIPTION calculate the centroid or center of mass of a list of floats; #X restore 544 540 pd META; #X connect 1 0 6 0; #X connect 2 0 6 0; #X connect 3 0 6 0; #X connect 5 0 6 0; #X connect 6 0 0 0; #X connect 6 1 4 0; #X connect 11 0 6 0; #X connect 12 0 6 0; #X connect 14 0 6 0; #X connect 15 0 16 0; #X connect 16 0 6 0; #X connect 17 0 15 0; #X connect 18 0 6 0; #X connect 19 0 6 0; #X connect 20 0 6 0; #X connect 21 0 6 0;