1 files changed, 238 insertions, 0 deletions

diff --git a/packages/noncvs/windows/extra/pix_drum/pix_drum-help.pd b/packages/noncvs/windows/extra/pix_drum/pix_drum-help.pd
new file mode 100644
index 00000000..1ea6a59e
--- /dev/null
+++ b/packages/noncvs/windows/extra/pix_drum/pix_drum-help.pd
@@ -0,0 +1,238 @@
+#N canvas 496 25 656 859 10;
+#X obj 7 360 pix_drum;
+#X obj 7 424 pix_texture;
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+#X text 79 190 thresh;
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+#X obj 232 223 t b f;
+#X obj 138 219 t b f;
+#X text 127 190 pix_dist;
+#X text 187 190 minpeak;
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+#X obj 280 221 t b f;
+#X obj 160 278 pack f f f f f f;
+#X obj 160 298 outlet;
+#X text 41 190 mode;
+#X text 169 14 first inlet takes the threshold value (0-1);
+#X text 240 190 min_wid;
+#X text 290 190 dist_ctr;
+#X msg 144 106 12;
+#X msg 222 108 0.12;
+#X msg 307 108 10;
+#X msg 390 109 12;
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+#X obj 18 265 outlet;
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+-1;
+#X obj 124 94 r refresh;
+#X text 18 160 bottom;
+#X text 66 160 head;
+#X text 112 160 left;
+#X text 156 160 right;
+#X obj 18 54 r i-bottom;
+#X obj 96 55 r i-head;
+#X obj 157 53 r i-left;
+#X obj 222 54 r i-right;
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+#X obj 7 297 gemhead 1;
+#X obj 7 318 pix_video;
+#X obj 7 339 pix_grey;
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+#X obj 21 54 r refresh;
+#X msg 21 73 \; ver-dim 240 \; hor-dim 320 \; dimen 320 240 \;;
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+302 \;;
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+#X text 292 269 bottom \, top \, right \, left;
+#X text 57 83 mode: selescts mode of operation (0 \, 1 or 2);
+#X text 56 121 thresh: threshold for contrast (0-1);
+#X text 6 494 pix_drum looks for black pixels incoming from the top
+a video frame.;
+#X text 6 522 The algorithm makes a histogram of how many black pixels
+there are per column.;
+#X text 7 631 the convexity test takes the form of:;
+#X text 62 645 y = hist[i] - (hist[i-x]*.05 + hist[i+x]);
+#X text 6 551 It then finds the highet point in the histogram \, that
+is \, the highest peak \, called the primary peak.;
+#X text 56 131 pix_dist: number of pixels around a center \, x in function
+below;
+#X text 98 97 mode 2 is the current regular function (others used for
+debugging);
+#X text 56 155 tip scalar: scalar of maximum height in concavity test
+graph \, values higher than this scaled height are part of a peak;
+#X text 57 189 min_width: minimum number of contiguous values higher
+than scaled height to report a peak;
+#X text 57 213 dist_ctr: minimum distance from primary peak to report
+a secondary peak.;
+#X text 265 257 INLET 2: defines the bounds of the anrea of analysis
+;
+#X text 56 68 INLET 1: Analysis Parameters;
+#X text 6 471 INFORMATION;
+#X text 6 579 It then finds the area of black pixels on either side
+of the primary peak. (Left Area and Right Area);
+#X text 7 605 It then performs a convexity test \, on both sides of
+the primary peak.;
+#X text 9 660 where (x) is a deviation from the center (i). If the
+line is straight y=0 \, if it is concave or convex \, hey are negative
+or positive.;
+#X text 11 699 The results of this test are recroded in a graph. secondary
+peaks are the point where two concave curves meet \, which therefore
+has a higher value for y in the concavity text.;
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+#X obj 131 36 inlet;
+#X obj 131 57 spigot;
+#X obj 131 78 print;
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+#X text 103 105 print?;
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+#X restore 99 386 pd print;
+#X text 189 302 OUTLETS;
+#X text 188 323 outlet 0: the analyzed video image;
+#X text 188 337 outlet 1: primary peak information;
+#X text 211 368 Areas are normalized;
+#X text 189 383 outlet 2: secondary peak information;
+#X text 212 415 side: At which side of the 1ry preak is the secondary
+peak.;
+#X text 246 427 Left = 0 \, Right = 1;
+#X text 220 353 [x coord. \, y coord. \, Left Area \, Right Area];
+#X text 222 399 [side \, index \, x coord. \, y coord.];
+#X text 213 440 index: index 0 - n of each secondary peak.;
+#X obj 7 448 rectangle 5.33 4;
+#X text 115 808 support information in www.jaimeoliver.pe;
+#X text 229 822 jaime.oliver@gmail.com;
+#X text 249 837 joliverl-2010 v0.01;
+#X text 193 454 outlets 3 and 4 are currently not supported;
+#X text 12 756 This object was programmed as part of the Silent Percussion
+Proect \, for use in the Silent Drum Controller. For more infomation:
+http://www.jaimeoliver.pe/drum;
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