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Hatt2GreekGrid QGIS 4 compatibility
Not QGIS 4 ready Active
Not yet — the latest version declares max QGIS version 3.99.0, so it is not offered to QGIS 4 users.
Georeference scanned Hatt-projection topographic diagrams and maps (small or large sheets) and transform them to the current Greek Grid / GGRS87 (EPSG:2100). Users add control points on an embedded Georeferencer-style UI canvas, define the map sheet by name or geographic coordinate centre (φ, λ), and export a world-file-ready TIFF or JPEG.
About
Hatt2GreekGrid converts topographic diagrams or maps referring to the Hatt azimuthal-equidistant projection (old Bessel datum) to the Greek Grid (EPSG:2100). It supports the small-to-large sheet centre change and former-to-new Bessel Helmert step, then applies the official OKXE per-sheet polynomials (or an analytic PROJ path) with live per-point and total RMS.
| Author | Assist. Professor Sevasti Chalkidou and Assist. Professor Angeliki Tsorlini (School of Rural and Surveying Engineering, Faculty of Engineering, Aristotle University of Thessaloniki,Greece) |
|---|---|
| Downloads | 394 |
| Latest version | 0.1.2 |
| Last updated | 2026-07-20 (87 days ago) |
| Min QGIS | 3.16.0 |
| Max QGIS | 3.99.0 |
| QGIS 4 ready | No |
| Maintenance | Active |
| Categories | Georeferencing & CAD, Coordinates & projections, Cartography & layout |
| Tags | egsa 87, hatt, greek grid, greece, cartography, cadastre, georeference |
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Maintenance: Active = updated within 1 year, Quiet = 1–3 years, Likely abandoned = over 3 years.