Extract and replace raw data
Source:R/02PTCell.r, R/03PTTrack.r, R/04PTPattern.r, and 1 more
as.raw.RdInformation of PTCell, PTTrack and
PTPattern objects are stored as raw values. This
method can be used to extract and replace this raw data. PTModule
objects can also be converted to raw data but not replaced by it.
Usage
# S4 method for PTCell
as.raw(x)
# S4 method for PTCell,raw
as.raw(x) <- value
# S4 method for PTTrack
as.raw(x)
# S4 method for PTTrack,matrix
as.raw(x) <- value
# S4 method for PTPattern
as.raw(x)
# S4 method for PTPattern,matrix
as.raw(x) <- value
# S4 method for PTModule
as.raw(x)Arguments
- x
A
PTCell,PTTrackorPTPatternobject, for which the raw data needs to extracted or replaced. APTModuleobject is also allowed, but this object cannot be replaced.- value
rawdata with which therawdata in objectxneeds to be replaced.If
xis aPTCellobject,valueshould be avectorof fourrawvalues (conform specifications provided at the documentation of thePTCell).If
xis aPTTrackobject,valueshould be a 64 by 4matrixholdingrawvalues (conform specifications provided at the documentation of thePTTrack).If
xis aPTPatternobject,valueshould be a 64 by 16matrixholdingrawvalues (conform specifications provided at the documentation of thePTPattern).
Value
For as.raw, a length 4 vector, 64 by 4 matrix or a 64 by 16
matrix of raw data is returned, when x is of class PTCell,
PTTrack or PTPattern, respectively.
If x is a PTModule object, the raw data returned will
have the same format as the ProTracker file format.
For as.raw<-, a copy of object x is returned in which the
raw data is replaced by value.
Details
A PTCell is an element of a PTTrack which
in turn is an element of a PTPattern. A PTPattern
tells a tracker which sample to play at which frequency on which of the
four audio channels and with which effects. A PTCell in essence
holds all this information as described at the documentation of
the PTCell.
Data in these objects are stored in these objects in a raw form,
to save working memory and to comply to the ProTracker file specifications
(see documentation of each of these classes for more details). This method
can be used to extract and replace raw data.
The PTModule object has a more complex structure but can also be converted
into raw data (the way it would be stored in a ProTracker module file). However,
this object cannot be replaced by raw data.
See also
Other raw.operations:
nybbleToSignedInt(),
nybble(),
rawToCharNull(),
rawToPTModule(),
rawToSignedInt(),
rawToUnsignedInt(),
signedIntToNybble(),
signedIntToRaw(),
unsignedIntToRaw()
Examples
data("mod.intro")
## Get the raw data of the PTCell at
## pattern #1, track #1 and row #1
## of mod.intro:
as.raw(PTCell(mod.intro, 1, 1, 1))
#> [1] 00 d6 1a 08
## idem for PTTrack #1 of pattern #1:
as.raw(PTTrack(mod.intro, 1, 1))
#> [,1] [,2] [,3] [,4]
#> [1,] 00 d6 1a 08
#> [2,] 00 00 1a 08
#> [3,] 00 00 1a 08
#> [4,] 00 00 00 00
#> [5,] 00 00 1a 08
#> [6,] 00 00 00 00
#> [7,] 00 00 1a 08
#> [8,] 00 00 00 00
#> [9,] 00 00 1a 08
#> [10,] 00 00 00 00
#> [11,] 00 00 1a 08
#> [12,] 00 00 00 00
#> [13,] 00 8f 10 00
#> [14,] 00 00 0a 08
#> [15,] 00 a0 10 00
#> [16,] 00 00 0a 08
#> [17,] 00 d6 1a 08
#> [18,] 00 00 1a 08
#> [19,] 00 00 1a 08
#> [20,] 00 00 00 00
#> [21,] 00 00 1a 08
#> [22,] 00 00 00 00
#> [23,] 00 00 1a 08
#> [24,] 00 00 00 00
#> [25,] 00 00 1a 08
#> [26,] 00 00 00 00
#> [27,] 00 00 1a 08
#> [28,] 00 00 00 00
#> [29,] 01 1d 10 00
#> [30,] 00 00 0a 08
#> [31,] 00 fe 10 00
#> [32,] 00 00 0a 08
#> [33,] 00 aa 1a 08
#> [34,] 00 00 1a 08
#> [35,] 00 00 1a 08
#> [36,] 00 00 00 00
#> [37,] 00 00 1a 08
#> [38,] 00 00 00 00
#> [39,] 00 00 1a 08
#> [40,] 00 00 00 00
#> [41,] 00 00 1a 08
#> [42,] 00 00 00 00
#> [43,] 00 00 1a 08
#> [44,] 00 00 00 00
#> [45,] 00 71 10 00
#> [46,] 00 00 0a 08
#> [47,] 00 7f 10 00
#> [48,] 00 00 0a 08
#> [49,] 00 be 1a 08
#> [50,] 00 00 1a 08
#> [51,] 00 00 1a 08
#> [52,] 00 00 00 00
#> [53,] 00 00 1a 08
#> [54,] 00 00 00 00
#> [55,] 00 00 1a 08
#> [56,] 00 00 00 00
#> [57,] 00 00 1a 08
#> [58,] 00 00 00 00
#> [59,] 00 00 1a 08
#> [60,] 00 00 00 00
#> [61,] 00 7f 10 00
#> [62,] 00 00 0a 08
#> [63,] 00 8f 10 00
#> [64,] 00 00 0a 08
## idem for PTPattern #1:
as.raw(PTPattern(mod.intro, 1))
#> [,1] [,2] [,3] [,4] [,5] [,6] [,7] [,8] [,9] [,10] [,11] [,12] [,13]
#> [1,] 00 d6 1a 08 00 d6 2c 40 01 e0 3f 06 00
#> [2,] 00 00 1a 08 00 d6 2c 30 00 00 0a 01 00
#> [3,] 00 00 1a 08 00 d6 20 00 00 00 0a 01 00
#> [4,] 00 00 00 00 00 d6 20 00 00 00 0a 02 00
#> [5,] 00 00 1a 08 00 d6 20 00 00 00 01 20 00
#> [6,] 00 00 00 00 00 f0 4c 08 00 00 0a 02 00
#> [7,] 00 00 1a 08 00 d6 20 00 00 00 02 20 00
#> [8,] 00 00 00 00 00 f0 4c 08 00 00 0a 01 00
#> [9,] 00 00 1a 08 00 d6 20 00 00 00 0a 01 00
#> [10,] 00 00 00 00 00 78 4c 08 00 00 0a 01 00
#> [11,] 00 00 1a 08 00 d6 20 00 00 00 0a 01 00
#> [12,] 00 00 00 00 00 8f 4c 08 00 00 0a 01 00
#> [13,] 00 8f 10 00 00 d6 20 00 00 00 0a 01 00
#> [14,] 00 00 0a 08 00 a0 4c 08 00 00 00 00 00
#> [15,] 00 a0 10 00 00 d6 20 00 00 00 00 00 00
#> [16,] 00 00 0a 08 00 f0 4c 08 00 00 00 00 00
#> [17,] 00 d6 1a 08 00 d6 2c 40 01 e0 3f 06 00
#> [18,] 00 00 1a 08 00 d6 2c 30 00 00 0a 01 00
#> [19,] 00 00 1a 08 00 d6 20 00 00 00 0a 01 00
#> [20,] 00 00 00 00 00 d6 20 00 00 00 0a 02 00
#> [21,] 00 00 1a 08 00 d6 20 00 00 00 01 20 01
#> [22,] 00 00 00 00 00 f0 4c 08 00 00 0a 02 00
#> [23,] 00 00 1a 08 00 d6 20 00 00 00 02 20 01
#> [24,] 00 00 00 00 00 f0 4c 08 00 00 0a 01 00
#> [25,] 00 00 1a 08 00 d6 20 00 00 00 0a 01 00
#> [26,] 00 00 00 00 00 78 4c 08 00 00 0a 01 00
#> [27,] 00 00 1a 08 00 d6 20 00 00 00 0a 01 00
#> [28,] 00 00 00 00 00 8f 4c 08 00 00 0a 01 00
#> [29,] 01 1d 10 00 00 d6 20 00 00 00 0a 01 00
#> [30,] 00 00 0a 08 01 40 4c 08 00 00 00 00 00
#> [31,] 00 fe 10 00 00 d6 20 00 00 00 00 00 00
#> [32,] 00 00 0a 08 01 1d 4c 08 00 00 00 00 00
#> [33,] 00 aa 1a 08 00 d6 2c 40 01 7d 30 00 00
#> [34,] 00 00 1a 08 00 d6 2c 30 00 00 0a 01 00
#> [35,] 00 00 1a 08 00 d6 20 00 00 00 0a 01 00
#> [36,] 00 00 00 00 00 d6 20 00 00 00 0a 02 00
#> [37,] 00 00 1a 08 00 d6 20 00 00 00 01 26 00
#> [38,] 00 00 00 00 00 be 4c 08 00 00 0a 02 00
#> [39,] 00 00 1a 08 00 d6 20 00 00 00 02 26 00
#> [40,] 00 00 00 00 00 aa 4c 08 00 00 0a 01 00
#> [41,] 00 00 1a 08 00 d6 20 00 00 00 0a 01 00
#> [42,] 00 00 00 00 00 be 4c 08 00 00 0a 01 00
#> [43,] 00 00 1a 08 00 d6 20 00 00 00 0a 01 00
#> [44,] 00 00 00 00 00 be 4c 08 00 00 0a 01 00
#> [45,] 00 71 10 00 00 d6 20 00 00 00 0a 01 00
#> [46,] 00 00 0a 08 00 be 4c 08 00 00 00 00 00
#> [47,] 00 7f 10 00 00 d6 20 00 00 00 00 00 00
#> [48,] 00 00 0a 08 01 53 4c 08 00 00 00 00 00
#> [49,] 00 be 1a 08 00 d6 2c 40 01 ac 30 00 00
#> [50,] 00 00 1a 08 00 d6 2c 30 00 00 0a 01 00
#> [51,] 00 00 1a 08 00 d6 20 00 00 00 0a 01 00
#> [52,] 00 00 00 00 00 d6 20 00 00 00 0a 02 00
#> [53,] 00 00 1a 08 00 d6 20 00 00 00 01 2b 00
#> [54,] 00 00 00 00 00 8f 4c 08 00 00 0a 02 00
#> [55,] 00 00 1a 08 00 d6 20 00 00 00 02 2b 00
#> [56,] 00 00 00 00 00 8f 4c 08 00 00 0a 01 00
#> [57,] 00 00 1a 08 00 d6 20 00 00 00 0a 01 00
#> [58,] 00 00 00 00 00 aa 4c 08 00 00 0a 01 00
#> [59,] 00 00 1a 08 00 d6 20 00 00 00 0a 01 00
#> [60,] 00 00 00 00 00 d6 4c 08 00 00 0a 01 00
#> [61,] 00 7f 10 00 00 d6 20 00 00 00 0a 01 00
#> [62,] 00 00 0a 08 00 8f 4c 08 00 00 00 00 00
#> [63,] 00 8f 10 00 00 a0 4c 08 00 00 00 00 00
#> [64,] 00 00 0a 08 00 d6 4c 08 00 00 00 00 00
#> [,14] [,15] [,16]
#> [1,] f0 40 00
#> [2,] 00 0a 02
#> [3,] d6 40 00
#> [4,] 00 0a 02
#> [5,] be 40 00
#> [6,] 00 0a 02
#> [7,] b4 40 00
#> [8,] 00 0a 02
#> [9,] a0 40 00
#> [10,] 00 0a 02
#> [11,] b4 40 00
#> [12,] 00 0a 02
#> [13,] be 40 00
#> [14,] 00 0a 02
#> [15,] d6 40 00
#> [16,] 00 0a 02
#> [17,] f0 40 00
#> [18,] 00 0a 02
#> [19,] be 40 00
#> [20,] 00 0a 02
#> [21,] 40 40 00
#> [22,] 00 0a 02
#> [23,] 1d 40 00
#> [24,] 00 0a 02
#> [25,] f0 40 00
#> [26,] 00 0a 01
#> [27,] 00 00 00
#> [28,] 00 0a 01
#> [29,] 00 00 00
#> [30,] 00 0a 01
#> [31,] 00 00 00
#> [32,] 00 0a 01
#> [33,] be 40 00
#> [34,] 00 0a 02
#> [35,] aa 40 00
#> [36,] 00 0a 02
#> [37,] 97 40 00
#> [38,] 00 0a 02
#> [39,] 8f 40 00
#> [40,] 00 0a 02
#> [41,] 7f 40 00
#> [42,] 00 0a 02
#> [43,] 8f 40 00
#> [44,] 00 0a 02
#> [45,] 97 40 00
#> [46,] 00 0a 02
#> [47,] aa 40 00
#> [48,] 00 0a 02
#> [49,] d6 40 00
#> [50,] 00 0a 02
#> [51,] be 40 00
#> [52,] 00 0a 02
#> [53,] aa 40 00
#> [54,] 00 0a 02
#> [55,] a0 40 00
#> [56,] 00 0a 02
#> [57,] 8f 40 00
#> [58,] 00 0a 02
#> [59,] a0 40 00
#> [60,] 00 0a 02
#> [61,] aa 40 00
#> [62,] 00 0a 02
#> [63,] be 40 00
#> [64,] 00 0a 02
## replace raw data of PTCell 1, 1, 1
## with that of PTCell 2, 1, 1:
as.raw(PTCell(mod.intro, 1, 1, 1)) <-
as.raw(PTCell(mod.intro, 2, 1, 1))