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Netcad DNS Koordinat Donusum QGIS 4 compatibility
QGIS 4 ready Active
Yes — Netcad DNS Koordinat Donusum supports QGIS 4 (declared max version 4.99.0).
Coordinate transformation using Netcad DNS files: Helmert, Affine and TIN methods.
About
This plugin reads Netcad .dns transformation files and applies coordinate transformation to selected vector layers. SUPPORTED METHODS: - Helmert (4 parameters): Isotropic scale + rotation + translation. Most common method. Minimum 2 control points required. - Affine (6 parameters): Different scale in E/N direction + shear. More flexible. Minimum 3 control points required. - TIN (Delaunay Triangulation): Local transformation per triangle. Residual = 0 at all control points (exact pass-through). Best accuracy for large areas. Minimum 3 control points required. SUPPORTED DNS FILE TYPES: - Point-Based ($AMAT + $NOK): Parameters computed from control points via LSQ. - Matrix-Based ($AMAT only): Parameters read directly from $AMAT matrix. QUALITY CONTROL: - Data Snooping (Baarda Test): Iteratively detects suspicious control points. - Normalized residuals (w-values) vs critical value comparison. - Error ellipses: sigma_E, sigma_N, sigma_P, semi-major/minor axes. - Residual vector and error ellipse layers can be added to the map. MULTI-LAYER SUPPORT: - Multiple layers can be selected (Ctrl/Shift) and transformed in one step. - Option to transform in-place or create new layers with custom suffix. REPORTING: - HTML report: Opens in browser with full CSS styling. - PDF report: Generated via QGIS WebEngine. Compatible with QGIS 3.16+ and QGIS 4.x (Qt5/Qt6). scipy package required for TIN method.
| Author | DNS Transform Contributors |
|---|---|
| Downloads | 1,011 |
| Latest version | 2.1.0 |
| Last updated | 2026-04-11 (188 days ago) |
| Min QGIS | 3.16.0 |
| Max QGIS | 4.99.0 |
| QGIS 4 ready | Yes |
| Maintenance | Active |
| Categories | Coordinates & projections, Georeferencing & CAD |
| Tags | netcad, tin, helmert, itrf, coordinate transformation, turef, dns, geodesy, delaunay, turkey, coordinate system, cadastre, surveying, affine |
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Maintenance: Active = updated within 1 year, Quiet = 1–3 years, Likely abandoned = over 3 years.