Survey network adjustment, rebuilt October 2026 to work like the desktop packages surveyors know — a project, Input ▸ Import Raw Data (any Leica DBX, nothing refused), and every observation as a text data file broken up by setup and application. Adjustment, listing and plot follow step by step.
The nine-step page from September 2026: assemble by vectors, control, edits, adjust, diagnoses, plot, report. Kept whole — the same engine drives the new page.
Shapefile to CAD with a change of coordinate system — ETRS89 / WGS84 (geographic or Earth-centred), OSGB36 National Grid by OSTN02 or OSTN15 with OSGM02 / OSGM15 heights, UTM, Irish TM, site grids by scale factor and shift; DXF out. Nothing uploaded.
Navisworks models to CAD — convert the FBX exported from Navisworks into OBJ and DXF for Leica Cyclone 3DR and AutoCAD, with units, up axis, layers and a local origin set the way you need. Replaces the Autodesk FBX Converter step. Nothing uploaded.
Braced control network — 12 stations, 26 measured legs, 112 observations. Triangles = held control; circles = adjusted stations with error ellipses.
Method
Rigorous least-squares adjustment · a-priori standard errors and centring · σ̂₀ and chi-square test · error ellipses and relative confidences · traverses, resections and free stations · benchmark and datum holds · StarNet-compatible .dat and .lst import · CPOBS observation files · CSV, points and DXF export
🔒 Zero-egress — computation runs entirely in your browser (WebAssembly); nothing is installed and nothing is uploaded. Verified against 150+ real adjustments from existing archives, agreement ≤0.1 mm. Independently validated · access-controlled.