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OpenMusic 6 – User ManualOM Objects > OM Basic Objects > Functions Package > BPF and BPC Tools > Coordinates
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Getting Coordinates

Selected Coordinates

Getting Xs from Selected Ys : Transfer

Transfer returns the ordinates for given abscissa.

Transfer has two inputs and one output :

  • "self" : a BPF .
  • "x-val" : a number or a list.
  • Its output returns a number or a list.
Getting Ys from Selected Xs : Y-Transfer

Y-transfer returns the abscissa values corresponding to given ordinates. It applies to BPFs and BPCs as well.

Transfer has three inputs and one output :

  • "self" : a BPF or a BPC.
  • "y-val" : a number or a list.
  • "n" : defines a number of decimals for the values to be returned.
  • Its output returns a number or a list.

Curves and Samples

Paires

Paires takes the whole curve and returns paires of abscissa and ordinates corresponding to each point of the curve.

Paires has one input and one output :

  • "self" : a BPC or BPF.
  • Its output returns a list of x-points and y-points.
Getting Y from a BPF sample : BPF-Sample

Bpf-sample selects a chunk from a curve and samples it n times to return a list of ordinates.

Sampling occurs at a regular frequeny, whose step is equal to "xmax" / "nbsamples".

Bpf-sample has four inputs and one output :

  • "self" : a BPF.
  • "x-min" : a number, the starting point of the sample.
  • "x-max" : a number, the ending point of the sample.
  • "nbsample" : a number of samples.
  • Its output returns a list of ordinates.
Getting Ys from a BPC : BPC-Sample

Bpc-sample selects the whole curve, and returns a list or ordinates. Sampling occurs at a regular frequency.

Bpf-sample has two inputs and one output :

  • "self" : a BPC.
  • "nbsample" : a number of samples.
  • its output returns a list of ordinates.
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