Embroidery format JEF
JEF Format
JEF Header
| Type | Bytes | Value | Description |
|---|---|---|---|
| `u32` | 4 | 0x74 +8 * Color_Changes | Offset into file where stitches begin. |
| `u32` | 4 | 0x14 | Unknown. |
| `char` | 14 | "20180712082429" (example) | Date |
| `char` | 1 | 'm', 'n', 'o','p','q','r','s',t' | Version letter. 12000: m, 11000: n, 10000v3: o, 10000 v2.2 p, 9000 q, mc350, r, mc200 s, mb4 t. Janome's software leaves this as 00 00 at times. |
| `u8` | 1 | 0x20 | Unknown |
| `u32` | 4 | Color Count | Color Count |
| `u32` | 4 | Points Length / 2 | Points Length /2. So 80 01 00 00 is 2 not 1. |
| `u32` | 4 | Hoop Used | Hoop |
| `u32` | 16 | Extends | Distances from center of hoop. |
| `u32` | 16 | Edge amount for hoop | Distance from default 110 x 110 Hoop, or -1,-1,-1,-1 if does not fit. |
| `u32` | 16 | Edge amount for hoop | Distance from default 50 x 50 Hoop, or -1,-1,-1,-1 if does not fit. |
| `u32` | 16 | Edge amount for hoop | Distance from default 140 x 200 Hoop, or -1,-1,-1,-1 if does not fit. |
| `u32` | 16 | Edge amount for hoop | Distance from custom hoop, or -1,-1,-1,-1 if does not fit. |
| `u32` | 4 * Color_Changes | Magic Number Color Lookup | List of colors changes. |
| `u32` | 4 * Color_Changes | 0x0D | The values 0x0D, 0x0D, 0x0D, 0x0D repeated as many times as there are color changes. |
Hoop
| Width | Height | Value |
|---|---|---|
| 110 | 110 | 0 |
| 50 | 50 | 1 |
| 140 | 200 | 2 |
| 126 | 110 | 3 |
| 200 | 200 | 4 |
JEF Body
Stitch
A stitch is two bytes of X, Y coords in 2s complement between (-127,127)
Commands
If the X value is 0x80 (-128) then the issued value is a command, the command is predicated on the value of Y. Each command is 4 bytes long: 0x80, 0x??, dx, dy (except END which simply ends at 0x80, 0x10).
| Command | B0 | B1 |
|---|---|---|
| END | 0x80 | 0x10 |
| COLOR_CHANGE | 0x80 | 0x01 |
| STOP | 0x80 | 0x01 |
| JUMP | 0x80 | 0x02 |
| TRIM | 0x80 | 0x02 |
The trim command is a JUMP with 0 distance x or y.
The actual Janome machines often have a few settings here. "Off" which performs no trimming. "Auto" or "Easy" that performs a trim at the color changes, end, or any jump longer than 3mm. And manual which lets you configure the jump length of the jump thread cutting, the cutting at the color change/end, or at a "cutting command".
Some programs provide trims by color changes. Since the machine can be set to trim at a color change. It performs a color change to the same color, which forces the machine to trim. The zero distance jump 0x80 0x02 0x00 0x00 appears to work as trim in the settings of Janome machines with that option.
JEF Colors
| Red | Green | Blue | Description | Index# |
|---|---|---|---|---|
| 0 | 0 | 0 | Unknown | 0 |
| 0 | 0 | 0 | Black | 1 |
| 255 | 255 | 255 | White | 2 |
| 255 | 255 | 23 | Sunflower | 3 |
| 250 | 160 | 96 | Hazel | 4 |
| 92 | 118 | 73 | Olive Green | 5 |
| 64 | 192 | 48 | Green | 6 |
| 101 | 194 | 200 | Sky | 7 |
| 172 | 128 | 190 | Purple | 8 |
| 245 | 188 | 203 | Pink | 9 |
| 255 | 0 | 0 | Red | 10 |
| 192 | 128 | 0 | Brown | 11 |
| 0 | 0 | 240 | Blue | 12 |
| 228 | 195 | 93 | Gold | 13 |
| 165 | 42 | 42 | Dark Brown | 14 |
| 213 | 176 | 212 | Pale Violet | 15 |
| 252 | 242 | 148 | Pale Yellow | 16 |
| 240 | 208 | 192 | Pale Pink | 17 |
| 255 | 192 | 0 | Peach | 18 |
| 201 | 164 | 128 | Beige | 19 |
| 155 | 61 | 75 | Wine Red | 20 |
| 160 | 184 | 204 | Pale Sky | 21 |
| 127 | 194 | 28 | Yellow Green | 22 |
| 185 | 185 | 185 | Silver Grey | 23 |
| 160 | 160 | 160 | Grey | 24 |
| 152 | 214 | 189 | Pale Aqua | 25 |
| 184 | 240 | 240 | Baby Blue | 26 |
| 54 | 139 | 160 | Powder Blue | 27 |
| 79 | 131 | 171 | Bright Blue | 28 |
| 56 | 106 | 145 | Slate Blue | 29 |
| 0 | 32 | 107 | Nave Blue | 30 |
| 229 | 197 | 202 | Salmon Pink | 31 |
| 249 | 103 | 107 | Coral | 32 |
| 227 | 49 | 31 | Burnt Orange | 33 |
| 226 | 161 | 136 | Cinnamon | 34 |
| 181 | 148 | 116 | Umber | 35 |
| 228 | 207 | 153 | Blonde | 36 |
| 225 | 203 | 0 | Sunflower | 37 |
| 225 | 173 | 212 | Orchid Pink | 38 |
| 195 | 0 | 126 | Peony Purple | 39 |
| 128 | 0 | 75 | Burgundy | 40 |
| 160 | 96 | 176 | Royal Purple | 41 |
| 192 | 64 | 32 | Cardinal Red | 42 |
| 202 | 224 | 192 | Opal Green | 43 |
| 137 | 152 | 86 | Moss Green | 44 |
| 0 | 170 | 0 | Meadow Green | 45 |
| 33 | 138 | 33 | Dark Green | 46 |
| 93 | 174 | 148 | Aquamarine | 47 |
| 76 | 191 | 143 | Emerald Green | 48 |
| 0 | 119 | 114 | Peacock Green | 49 |
| 112 | 112 | 112 | Dark Grey | 50 |
| 242 | 255 | 255 | Ivory White | 51 |
| 177 | 88 | 24 | Hazel | 52 |
| 203 | 138 | 7 | Toast | 53 |
| 247 | 146 | 123 | Salmon | 54 |
| 152 | 105 | 45 | Cocoa Brown | 55 |
| 162 | 113 | 72 | Sienna | 56 |
| 123 | 85 | 74 | Sepia | 57 |
| 79 | 57 | 70 | Dark Sepia | 58 |
| 82 | 58 | 151 | Violet Blue | 59 |
| 0 | 0 | 160 | Blue Ink | 60 |
| 0 | 150 | 222 | Solar Blue | 61 |
| 178 | 221 | 83 | Green Dust | 62 |
| 250 | 143 | 187 | Crimson | 63 |
| 222 | 100 | 158 | Floral Pink | 64 |
| 181 | 80 | 102 | Wine | 65 |
| 94 | 87 | 71 | Olive Drab | 66 |
| 76 | 136 | 31 | Meadow | 67 |
| 228 | 220 | 121 | Canary Yellow | 68 |
| 203 | 138 | 26 | Toast | 69 |
| 198 | 170 | 66 | Beige | 70 |
| 236 | 176 | 44 | Honey Dew | 71 |
| 248 | 128 | 64 | Tangerine | 72 |
| 255 | 229 | 5 | Ocean Blue | 73 |
| 250 | 122 | 122 | Sepia | 74 |
| 107 | 224 | 0 | Royal Purple | 75 |
| 56 | 108 | 174 | Yellow Ocher | 76 |
| 208 | 186 | 176 | Beige Grey | 77 |
| 227 | 190 | 129 | Bamboo | 78 |