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== Viking/Husqvarna Pfaff/Singer 3 VP3 ==
== Viking/Husqvarna Pfaff/Singer 3 VP3 ==


The VP3 file format appears to be series of nested sections. Most sections contain tagged records.
The VP3 file format appears to be series of nested tagged sections. The files seen so far, start with a header of signature bytes and "Produced by..." string; followed by a tagged embroidery-summary packet. Like Russian dolls, the embroidery-summary packet contains a tagged hoop-centred packet after some information about stitched area, stitching time, etc. The hoop-centred packet expresses a centred stitch extent and contains several tagged thread packets. Each thread packet has colour and weight information, also containing one stitch-rum packet.


In the style of Backus–Naur Form,  
The file format could logically contain several embroideries, and each embroidery contain more then one hoop, but this has not been seen. Perhaps to contain a library of patterns, or to split a large design over several hoops.


File = File-header Extent
The tags seen, so far, are,
* 0 2 0 - Embroidery-summary packet
* 0 3 0 - Hoop-centred packet
* 0 5 0 - Thread packet
* 0 1 0 - Stitch-run packet


Extent = Extent-header {Hoop}


Hoop = Hoop-header Canvas Threads
In the style of Backus–Naur Form,
 
Threads = Threads-header {Thread}


Thread = Thread-header Colours Thread-text Thread-detail Stitches Thread-end
File = File-header Embroidery-summary


Colours = {Colour-detail}
Embroidery-summary = Summary-details {Hoop-centred}


Stitches = Stitches-header {Stitch}
Hoop-centred = Hoop-details {Thread}


Stitch = Escaped-command | Displacement
Thread = Thread-details Stitch-run


===File-header===
===File-header===
Line 36: Line 37:
| N1
| N1
| N-WStr
| N-WStr
| Producer 16 bit big-endian length in bytes followed by 16 bit characters
| Producer-string 16 bit big-endian length in bytes followed by 16 bit characters
|-
|-
| 6+N1
| 6+N1
Line 44: Line 45:
|}
|}


===Extent-header===
===Embroidery Summary-details===
{| class="wikitable"
{| class="wikitable"
| Offset
| Offset
Line 54: Line 55:
| 3
| 3
| Tag
| Tag
| Extent-tag 00 02 00 three bytes
| embroidery-tag 0 2 0 three bytes
|-
|-
| 3
| 3
| 4
| 4
| Length
| Length
| Extent-len remaining bytes in file
| embroidery-len remaining bytes in this packet
|-
|-
| 3
| 7
| N2
| N2
| N-WStr
| N-WStr
| Settings human readable debugging notes
| settings-string human readable debugging notes
|-
|-
| 7+N2
| 7+N2
| 4
| 4
| MicroM
| MicroM
| Extent-top top edge of stitching in um
| extent-right right edge of stitching in um starting from 0,0
|-
|-
| 11+N2
| 11+N2
| 4
| 4
| MicroM
| MicroM
| Extent-right
| extent-top
|-
|-
| 15+N2
| 15+N2
| 4
| 4
| MicroM
| MicroM
| Extent-bottom
| extent-left
|-
|-
| 19+N2
| 19+N2
| 4
| 4
| MicroM
| MicroM
| Extent-left
| extent-bottom
|-
|-
| 23+N2
| 23+N2
| 4
| 4
| Count
| Count
| Total-stitch-count
| stitch-time-count time estimate in stitches
|-
|-
| 27+N2
| 27+N2
| 2
| 2
| Count
| Count
| Total-thread-count
| thread-change-count
|-
|-
| 29+N2
| 29+N2
Line 107: Line 108:
|}
|}


===Hoop-header===
===Hoop-details===
{| class="wikitable"
{| class="wikitable"
| Offset
| Offset
Line 117: Line 118:
| 3
| 3
| Tag
| Tag
| Hoop-tag = 00 03 00
| hoop-tag = 0 3 0
|-
|-
| 3
| 3
| 4
| 4
| Length
| Length
| Hoop-len
| hoop-len
|-
|-
| 7
| 7
| 4
| 4
| MicroM
| MicroM
| Centre-X
| centre-x of summary extent above
|-
|-
| 11
| 11
| 4
| 4
| MicroM
| MicroM
| Centre-Y
| centre-Y
|-
|-
| 15
| 15
| 3
| 3
| Tag
| Bytes
| Canvas-tag = 00 00 00 (or unknown)
| unknown = 00 00 00 may include empty string
|-
|-
| 18
| 18
| 4
| 4
| MicroM
| MicroM
| Hoop-left
| hoop-left
|-
|-
| 22
| 22
| 4
| 4
| MicroM
| MicroM
| Hoop-right
| hoop-right
|-
|-
| 26
| 26
| 4
| 4
| MicroM
| MicroM
| Hoop-bottom
| hoop-bottom
|-
|-
| 30
| 30
| 4
| 4
| MicroM
| MicroM
| Hoop-top
| hoop-top
|-
|-
| 34
| 34
| 4
| 4
| MicroM
| MicroM
| Hoop-width
| hoop-width
|-
|-
| 38
| 38
| 4
| 4
| MicroM
| MicroM
| Hoop-height
| hoop-height
|-
|-
| 42
| 42
| N3
| N3
| N-WStr
| N-WStr
| Settings-2 second copy of Settings
| settings-2 second copy of settings-string
|-
|-
| 42+N3
| 42+N3
Line 203: Line 204:
| int
| int
| unknown = 4096
| unknown = 4096
|}
===Threads-header===
{| class="wikitable"
| Offset
| Length
| Type
| Description
|-
|-
| 0
| 60+N3
| 6
| 1
| Bytes
| Byte
| Threads-sig = 120 120 80 80 1 0
| unknown = 120 or 'x'
|-
| 61+N3
| 1
| Byte
| unknown = 120 or 'x'
|-
| 62+N3
| 1
| Byte
| unknown = 80 or 'P'
|-
| 63+N3
| 1
| Byte
| unknown = 80 or 'P'
|-
| 64+N3
| 1
| Byte
| unknown = 1
|-
| 65+N3
| 1
| Byte
| unknown = 0
|-
|-
| 6
| 66+N3
| N4
| N4
| N-WStr
| N-WStr
| Producer-2 copy of producer text
| producer-2 second copy of producer-string
|-
|-
| 6+N4
| 66+N3+N4
| 2
| 2
| Count
| Count
| Thread-count
| thread-count
|}
|}


===Thread===
===Thread-details===
{| class="wikitable"
{| class="wikitable"
| Offset
| Offset
Line 238: Line 256:
| 3
| 3
| Tag
| Tag
| Thread-tag = 00 05 00
| thread-tag = 0 5 0
|-
|-
| 3
| 3
| 4
| 4
| Length
| Length
| Thread-len bytes to next thread
| thread-len bytes to next thread
|-
|-
| 7
| 7
| 4
| 4
| MicroM
| MicroM
| Start-X
| start-x move needle
|-
|-
| 11
| 11
| 4
| 4
| MicroM
| MicroM
| Start-Y
| start-y
|-
|-
| 15
| 15
| 1
| 1
| Count
| Count
| Colours-per-thread
| colours-per-thread
|-
|-
| 16
| 16
| N5
| Table
| colour-table = {colour-detail}
|-
| 16+N5
| 1
| 1
| Byte
| Byte
| unknown = 0
| unknown = 0 or 10 for multicoloured
|-
| 17
| N5
| Table
| Colours
|-
|-
| 17+N5
| 17+N5
| 1
| 1
| Code
| Code
| Thread-type-tension (5 rayon, 1 metallic)
| thread-type-tension (5 rayon, 1 metallic)
|-
|-
| 18+N5
| 18+N5
| 1
| 1
| Byte
| Byte
| Thread-weight
| thread-weight (km/kg)
|-
|-
| 19+N5
| 19+N5
| N6
| N6
| Record
| Record
| Thread-text human readable thread description
| thread-description human readable thread description
|-
|-
| 19+N5+N6
| 19+N5+N6
| 4
| 4
| MicroM
| MicroM
| unknown-X (appears to be total displacement)
| total-displacement-x sum of stitches and jump stitches
|-
|-
| 23+N5+N6
| 23+N5+N6
| 4
| 4
| MicroM
| MicroM
| unknown-Y (appears to be total displacement)
| total-displacement-y
|-
|-
| 27+N5+N6
| 27+N5+N6
| N7
| N7
| Record
| Record
| Stitches
| stitche-run
|-
|-
| 27+N5+N6+N7
| 27+N5+N6+N7
Line 314: Line 332:
|-
|-
| 0
| 0
| 1
| Byte
| unknown = 0 or 20 for multicoloured
|-
| 1
| 3
| 3
| RRGGBB
| RRGGBB
| Colour-RGB
| colour-RGB
|-
|-
| 3
| 4
| 1
| 1
| Byte
| Byte
| unknown = 0 or 10
| unknown = 0 or 10 for multicoloured
|-
|-
| 4
| 5
| 1
| 1
| Byte
| Byte
| unknown = 0
| unknown = 0
|}
===Thread Tension Code===
{| class="wikitable"
| Code
| Description
|-
|-
| 5
| 5
| Rayon
|-
| 1
| 1
| Byte
| Metallic
| unknown = 0, 20, or 10
|}
|}


===Thread-text===
===Thread Description===
{| class="wikitable"
{| class="wikitable"
| Offset
| Offset
Line 357: Line 388:
|}
|}


===Stitches-header===
===Stitch-run===
{| class="wikitable"
{| class="wikitable"
| Offset
| Offset
Line 367: Line 398:
| 3
| 3
| Tag
| Tag
| Stitches-tag = 00 01 00
| stitch-tag = 00 01 00
|-
|-
| 3
| 3
| 4
| 4
| Length
| Length
| Stitches-len
| stitches-len
|-
|-
| 7
| 7
| 1
| 1
| Byte
| Byte
| Scale-X = 10
| scale-x = 10
|-
|-
| 8
| 8
| 1
| 1
| Byte
| Byte
| Scale-Y = -10
| scale-y = -10 the y displacement is negative
|-
|-
| 9
| 9
Line 388: Line 419:
| Byte
| Byte
| unknown = 0
| unknown = 0
|-
| 10
| N8
| Table
| stitch-table = {Escaped-command | Displacement | disp-x | disp-y}
|}
|}


===Escaped-command===
===Escaped-command===
Line 407: Line 444:
| Command-code
| Command-code
|}
|}


{| class="wikitable"
{| class="wikitable"
Line 416: Line 454:
|-
|-
| 1
| 1
| Move followed by 16 bit displacement-X and 16 bit displacement-Y
| Move followed by 16 bit displacement-x and 16 bit displacement-y
|-
|-
| 2
| 2
| End-move
| End-move preceded  by 16 bit displacement-y and 16 bit displacement-x for reverse stitching
|-
|-
| 3
| 3
Line 435: Line 473:
| 1
| 1
| Byte
| Byte
| Displacement-X -127 to 127 in 0.1 mm
| displacement-x -127 to 127 in 0.1 mm
|-
|-
| 1
| 1
| 1
| 1
| Byte
| Byte
| Displacement-Y -127 to 127 in -0.1 mm
| displacement-y -127 to 127 in -0.1 mm
|}
|}


Revision as of 01:43, 24 August 2012

Viking/Husqvarna Pfaff/Singer 3 VP3

The VP3 file format appears to be series of nested tagged sections. The files seen so far, start with a header of signature bytes and "Produced by..." string; followed by a tagged embroidery-summary packet. Like Russian dolls, the embroidery-summary packet contains a tagged hoop-centred packet after some information about stitched area, stitching time, etc. The hoop-centred packet expresses a centred stitch extent and contains several tagged thread packets. Each thread packet has colour and weight information, also containing one stitch-rum packet.

The file format could logically contain several embroideries, and each embroidery contain more then one hoop, but this has not been seen. Perhaps to contain a library of patterns, or to split a large design over several hoops.

The tags seen, so far, are,

  • 0 2 0 - Embroidery-summary packet
  • 0 3 0 - Hoop-centred packet
  • 0 5 0 - Thread packet
  • 0 1 0 - Stitch-run packet


In the style of Backus–Naur Form,

File = File-header Embroidery-summary

Embroidery-summary = Summary-details {Hoop-centred}

Hoop-centred = Hoop-details {Thread}

Thread = Thread-details Stitch-run

File-header

Offset Length Type Description
0 6 ASCIIZ Signature = "%vsm%"
6 N1 N-WStr Producer-string 16 bit big-endian length in bytes followed by 16 bit characters
6+N1

Embroidery Summary-details

Offset Length Type Description
0 3 Tag embroidery-tag 0 2 0 three bytes
3 4 Length embroidery-len remaining bytes in this packet
7 N2 N-WStr settings-string human readable debugging notes
7+N2 4 MicroM extent-right right edge of stitching in um starting from 0,0
11+N2 4 MicroM extent-top
15+N2 4 MicroM extent-left
19+N2 4 MicroM extent-bottom
23+N2 4 Count stitch-time-count time estimate in stitches
27+N2 2 Count thread-change-count
29+N2 1 Byte unknown = 12
30+N2 2 Count unknown = 1 may be hoop-count

Hoop-details

Offset Length Type Description
0 3 Tag hoop-tag = 0 3 0
3 4 Length hoop-len
7 4 MicroM centre-x of summary extent above
11 4 MicroM centre-Y
15 3 Bytes unknown = 00 00 00 may include empty string
18 4 MicroM hoop-left
22 4 MicroM hoop-right
26 4 MicroM hoop-bottom
30 4 MicroM hoop-top
34 4 MicroM hoop-width
38 4 MicroM hoop-height
42 N3 N-WStr settings-2 second copy of settings-string
42+N3 1 Byte unknown = 100
43+N3 1 Byte unknown = 100
44+N3 4 int unknown = 4096
48+N3 4 int unknown = 0
52+N3 4 int unknown = 0
56+N3 4 int unknown = 4096
60+N3 1 Byte unknown = 120 or 'x'
61+N3 1 Byte unknown = 120 or 'x'
62+N3 1 Byte unknown = 80 or 'P'
63+N3 1 Byte unknown = 80 or 'P'
64+N3 1 Byte unknown = 1
65+N3 1 Byte unknown = 0
66+N3 N4 N-WStr producer-2 second copy of producer-string
66+N3+N4 2 Count thread-count

Thread-details

Offset Length Type Description
0 3 Tag thread-tag = 0 5 0
3 4 Length thread-len bytes to next thread
7 4 MicroM start-x move needle
11 4 MicroM start-y
15 1 Count colours-per-thread
16 N5 Table colour-table = {colour-detail}
16+N5 1 Byte unknown = 0 or 10 for multicoloured
17+N5 1 Code thread-type-tension (5 rayon, 1 metallic)
18+N5 1 Byte thread-weight (km/kg)
19+N5 N6 Record thread-description human readable thread description
19+N5+N6 4 MicroM total-displacement-x sum of stitches and jump stitches
23+N5+N6 4 MicroM total-displacement-y
27+N5+N6 N7 Record stitche-run
27+N5+N6+N7 1 Byte unknown = 0

Colour-detail

Offset Length Type Description
0 1 Byte unknown = 0 or 20 for multicoloured
1 3 RRGGBB colour-RGB
4 1 Byte unknown = 0 or 10 for multicoloured
5 1 Byte unknown = 0


Thread Tension Code

Code Description
5 Rayon
1 Metallic

Thread Description

Offset Length Type Description
0 N6a N-Str Thread-code 16 bit length followed by ASCII characters part-number
0+N6a N6b N-Str Thread-name human readable name of thread
0+N6a+N6b N6c N-Str Thread-manu maker, material and weight

Stitch-run

Offset Length Type Description
0 3 Tag stitch-tag = 00 01 00
3 4 Length stitches-len
7 1 Byte scale-x = 10
8 1 Byte scale-y = -10 the y displacement is negative
9 1 Byte unknown = 0
10 N8 Table Displacement | disp-x | disp-y}


Escaped-command

Offset Length Type Description
0 1 Byte Escape = -128 or 0x80
1 1 Byte Command-code


Command-code Description
0 Deleted or null stitch
1 Move followed by 16 bit displacement-x and 16 bit displacement-y
2 End-move preceded by 16 bit displacement-y and 16 bit displacement-x for reverse stitching
3 Deleted or null stitch

Displacement

Offset Length Type Description
0 1 Byte displacement-x -127 to 127 in 0.1 mm
1 1 Byte displacement-y -127 to 127 in -0.1 mm


Other References

The VP3 File Format external page contains an overview of this format.

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