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ptable3

Accesses table values by direct indexing with cubic interpolation.

Syntax

ares ptable3 andx, ifn [, ixmode] [, ixoff] [, iwrap]
ires ptable3 indx, ifn [, ixmode] [, ixoff] [, iwrap]
kres ptable3 kndx, ifn [, ixmode] [, ixoff] [, iwrap]

Initialization

ifn -- function table number.

ixmode (optional) -- index data mode. The default value is 0.

  • 0 = raw index
  • 1 = normalized (0 to 1)

ixoff (optional) -- amount by which index is to be offset. For a table with origin at center, use tablesize/2 (raw) or 0.5 (normalized). The default value is 0.

iwrap (optional) -- wraparound index flag. The default value is 0.

  • 0 = nowrap (index < 0 treated as index=0; index > tablesize sticks at index=size)
  • 1 = wraparound.

Performance

ptable3 is identical to table3, except that it uses does not require the table to have a power of two size.

See Also

table, tablei, table3, ptable, ptablei, oscil1, oscil1i, osciln

Credits

Author: John ffitch
Jan 2012

New in Csound version 5.16