#N canvas 566 0 632 662 10;
#X obj 255 129 #outer + (0 9000);
#X text 333 91 make regular triangle;
#X obj 255 227 #rotate;
#X obj 209 53 tgl 15 0 empty empty empty 0 -6 0 8 -262144 -1 -1 0 1
;
#X obj 308 227 * 100;
#X floatatom 308 211 5 0 0 0 - - -;
#X obj 268 72 t b b;
#X obj 255 246 #polygon_comparator;
#X obj 209 72 bng 15 250 50 0 empty empty empty 0 -6 0 8 -262144 -1
-1;
#X obj 255 186 #t;
#X obj 228 53 metro 1000;
#X text 30 254 BUG: first try doesn't work;
#X text 67 265 please bang twice;
#X msg 381 149 4 2 # 1 1 1 -1 -1 -1 -1 1;
#X obj 391 195 display;
#X obj 255 110 # * 12000;
#X obj 255 91 #for 0 3;
#X obj 381 169 # * (100 100);
#X obj 255 167 # + (0 0);
#X obj 255 148 # cos* (100 100);
#X obj 215 278 #fold min;
#X obj 295 278 #fold max;
#X obj 215 297 #to_float;
#X obj 295 297 #to_float;
#X obj 381 129 loadbang;
#X obj 215 316 nbx 8 14 -1e+37 1e+37 0 0 empty empty empty 0 -6 0 9
-262144 -1 -1 0.971223 256;
#X obj 295 316 nbx 8 14 -1e+37 1e+37 0 0 empty empty empty 0 -6 0 9
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#X text 232 453 or method "precision" for setting the size of the output
grid.;
#X text 232 510 in which the peak represents the amount of similarity
between the two polygons \, and the position of the peak represents
the optimal rotation for maximum overlapping of the polygons. The rotation
origin is assumed to be the centroid (#moment 1);
#X text 24 239 NOTE: requires [#fft];
#X text 33 150 translations \, e.g. [# +];
#X text 33 168 rotations \, e.g. [#rotate];
#X obj 0 0 doc_h;
#X obj 3 361 doc_c;
#X obj 3 401 doc_i 2;
#X obj 3 594 doc_o 1;
#X text 232 488 a 2-D polygon as N by 2 grid;
#X text 232 431 a 2-D polygon as N by 2 grid;
#X obj 14 431 doc_ii 0;
#X obj 14 488 doc_ii 1;
#X obj 14 624 doc_oo 0;
#X obj 0 689 doc_f;
#X obj 97 431 doc_m i0 grid;
#X text 8 114 Comparisons are meant to be invariant;
#X text 8 126 to the following transformations:;
#X text 33 186 scalar scalings \, e.g. [# *] with;
#X text 33 198 only one value.;
#X obj 97 624 doc_m o0 grid;
#X obj 3 669 doc_also;
#X obj 97 488 doc_m i1 grid;
#X text 232 624 a float grid of size 256 showing the cross-correlation
between polygons in polar form relative to their centroid.;
#X obj 103 669 #polygon_moment;
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#X connect 2 0 7 0;
#X connect 3 0 10 0;
#X connect 4 0 2 1;
#X connect 5 0 4 0;
#X connect 6 1 16 0;
#X connect 7 0 20 0;
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#X connect 9 0 2 0;
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