Survey tools

Public calculators for Kenyan cadastral and engineering survey work — coordinate transforms, traverse adjustment, area, and polar/join.

Coordinate Transform

Affine Cassini-Soldner ↔ UTM: cadastral sheet mode (database controls) or custom control-point mode with fitted parameters and residuals.

CRS Transform (PROJ)

PROJ4 / EPSG reprojection via pyproj, plus NLIMS log-table Cassini with configurable central meridian. General-purpose; no sheet correction.

Traverse Adjustment

Closed and open traverse computation with misclosure checks, Compass (Bowditch) or Transit rule adjustment, and coordinate propagation.

Area & Perimeter

Compute parcel area and boundary perimeter from surveyed coordinates using the shoelace method, with map preview and edge lengths.

Bearing & Distance

Forward (polar) and inverse (join) computations — coordinates from bearing and distance, or bearing and distance between two points.