merged in relevant changes from the v0-40 pd-extended release branch

svn path=/trunk/externals/creb/; revision=10266

1 files changed, 111 insertions, 0 deletions

diff --git a/doc/scrollgrid1D~-help.pd b/doc/scrollgrid1D~-help.pd
new file mode 100644
index 0000000..16ec412
--- /dev/null
+++ b/doc/scrollgrid1D~-help.pd
@@ -0,0 +1,111 @@
+#N canvas 309 57 748 724 10;
+#X obj 116 116 scrollgrid1D~;
+#X msg 36 92 reset;
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+#X obj 504 206 table t 10000;
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+#X text 103 47 frequency;
+#X text 197 45 T1;
+#X text 249 45 T2;
+#X text 301 46 N;
+#X msg 111 66 350;
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+#X msg 188 65 12;
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+#X text 233 292 parameters:;
+#X text 266 359 N = number of scrolls or unstable rotation centers
+in attractor;
+#X text 233 404 outputs:;
+#X text 230 468 some remarks;
+#X text 266 422 the first output is alongside the scoll centers \,
+the other two are orthogonal to this line.;
+#X text 368 130 X Y Z;
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+#X msg 132 263 500;
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+#X text 265 325 T1 = unstable time constant in ms ("attack" time);
+#X text 265 342 T2 = stable time constant in ms ("release" time);
+#X text 265 660 the entire circuit is clipped \, which means that for
+some parameter values that would normally cause a blowup \, its behaviour
+is limited to that of an oscillator.;
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+#X msg 142 66 5000;
+#X text 264 309 freq = spiral frequency in Hz;
+#X text 45 11 stabilized scroll grid chaotic oscillator with scroll
+centers located on a line.;
+#X msg 204 262 17000;
+#X text 265 493 this chaotic system is a switched unstable linear system.
+it consists of N scrolls (outward spirals). when the amplitude of the
+spiral has reached a certain threshold \, it is switched to be attracted
+by a neighbouring scroll. the freq parameter determines the frequency
+of the outward spiralling motion on a scroll. T1 is the outward spiralling
+time constant. T1 large means slow buildup or mild chaotic motion \,
+T1 small means fast buildup or turbulent chaotic motion. T2 is the
+time constant with which a trajectory is attracted to the plane of
+a scroll. T2 small means fast attraction \, T2 large means slow attraction.
+;
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