JEF is the native file format of Janome embroidery machines: a binary file with a 116-byte header (hoop size, thread colors, design bounds) followed by stitch data. On osm2cdr.ru a map turns into embroidery line by line — roads, water outlines, greenery and building contours are traced with a running stitch along the geometry. This is not satin fill but a running-stitch baseline — an honest starting point for a Janome machine or for refinement in an editor. Thread color is assigned per layer using Janome standard palette indices.
Najważniejsze funkcje

Jaki program otwiera pliki JEF
Następujące programy i aplikacje mogą otwierać, edytować i pracować z plikami JEF — Janome Embroidery File (.jef) wyeksportowanymi z OSM2CDR:
Format specifications
- Proprietary format
- 2D only
- Lossless (no quality loss)
- No attributes
- Output: 1 file
- A Janome JEF embroidery file: a 116-byte header plus running-stitch data tracing map lines and outlines, per-layer Janome palette colors, segments split at 12.1 mm.
Kto korzysta z map JEF
Jak wyeksportować JEF
Popularne mapy w formacie JEF
Uzyskaj eksporty map w formacie JEF — Janome Embroidery File
Pobieraj profesjonalne mapy JEF z OpenStreetMap. Natychmiastowe generowanie, dowolny obszar.