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QMapAnalyst QGIS 4 compatibility
QGIS 4 ready Active
Yes — QMapAnalyst supports QGIS 4 (declared max version 4.99.0).
Cartometric analysis of historical maps: Helmert, affine and polynomial transformations with full statistics, outlier detection, distortion grids and isolines, and estimation of the map projection the map was drawn in.
About
Modern QGIS plugin inspired by MapAnalyst, built with Python, NumPy and SciPy (Qt5 and Qt6). Computes Helmert, affine and 2nd-order polynomial transformations between a historical map scan and a reference map with standard errors, cross-validation, Baarda outlier test, model comparison (AICc), spatial autocorrelation of residuals and Tissot-based local distortion analysis. Estimates the most likely map projection (Bonne, Cassini-Soldner, equidistant conic, Sanson-Flamsteed, trapezoidal, Mercator and more) and draws its graticule on the scan.
| Author | Tomasz Nycz |
|---|---|
| Downloads | 192 |
| Latest version | 0.2.1 |
| Last updated | 2026-11-08 (4 days ago) |
| Min QGIS | 3.34.0 |
| Max QGIS | 4.99.0 |
| QGIS 4 ready | Yes |
| Maintenance | Active |
| Categories | Coordinates & projections, Spatial analysis, Georeferencing & CAD |
| Tags | history, mapanalyst, transformation, helmert, affine, rbf, cartometry, georeferencing, historical maps, map projection, accuracy |
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Maintenance: Active = updated within 1 year, Quiet = 1–3 years, Likely abandoned = over 3 years.