[PD] problem with array?

[david golightly]

Of course, you know about

|;                                           /
|tab sinesum tab-len p1 p2 p3 ...\

where tab is your table, p[n]=partial strength (0-1) for n*fundamental, and 
tab-len is a power of 2.  This is much faster and saves a lot of time from 
computing the sine wave to a table directly.

Hope that helps.


-  ---=---^---   -^-  -=- - - ^------ - -^---^-  -- --^^  --===

homepage:
http://www.davidgolightly.net





>From: Rory Walsh <rorytheroar at yahoo.com>
>To: PD-list at iem.at
>Subject: [PD] problem with array?
>Date: Wed, 19 Oct 2005 11:39:57 +0100 (BST)
>
>Hi list, I am having this rather silly problem trying
>to graph a sin function on an array? I have attached
>the patch, it uses counter from the GEM library. It
>won't seem to plot the points of the sin wave.
>Actually I didn't have much time to go over it and I
>want to use it later in a demo but haven't time to
>spend figuring out the problem, I know it's cheeky but
>can anyone help?
>Rory.
>
>
>
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>#N canvas 63 32 663 602 16;
>#N canvas 0 0 450 300 graph1 0;
>#X array array1 100 float 0;
>#X coords 0 5 99 -5 300 140 1;
>#X restore 153 410 graph;
>#X obj 149 324 tabwrite array1;
>#X floatatom 149 238 5 0 0 0 - - -;
>#X floatatom 149 294 5 0 0 0 - - -;
>#X obj 149 178 tgl 15 0 empty empty empty 0 -6 0 8 -262144 -1 -1 0
>1;
>#N canvas 421 54 464 314 count 0;
>#X msg 139 97 bang;
>#X obj 139 68 metro 300;
>#X floatatom 222 39 5 0 0 0 - - -;
>#X obj 140 127 counter 0 1000;
>#X obj 139 39 inlet;
>#X obj 223 9 inlet;
>#X obj 140 197 outlet;
>#X obj 140 157 * 0.1;
>#X connect 0 0 3 0;
>#X connect 1 0 0 0;
>#X connect 2 0 1 1;
>#X connect 3 0 7 0;
>#X connect 4 0 1 0;
>#X connect 5 0 2 0;
>#X connect 7 0 6 0;
>#X restore 149 202 pd count;
>#X floatatom 223 177 5 0 0 0 - - -;
>#X text 220 154 Count Speed;
>#X text 257 232 f(x) = sin(2PIt);
>#X obj 149 269 expr sin($f1*6.2831);
>#X connect 2 0 1 1;
>#X connect 2 0 9 0;
>#X connect 3 0 1 0;
>#X connect 4 0 5 0;
>#X connect 5 0 2 0;
>#X connect 6 0 5 1;
>#X connect 9 0 3 0;


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