Coordinate Transform (sheet)
LiveSheet-based affine Cassini-Soldner ↔ UTM using four control points per cadastral sheet. For official local fit.
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Sheet-based affine Cassini-Soldner ↔ UTM using four control points per cadastral sheet. For official local fit.
Default PROJ4 / EPSG reprojection (pyproj) — Cassini ↔ UTM, WGS84, or custom CRS strings. General-purpose; no sheet correction.
Closed and open traverse computation with misclosure checks, Compass (Bowditch) or Transit rule adjustment, and coordinate propagation.
Compute parcel area and boundary perimeter from surveyed coordinates using the shoelace method, with map preview and edge lengths.
Forward (polar) and inverse (join) computations — coordinates from bearing and distance, or bearing and distance between two points.