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Bowditch Length-Proportional Traverse Closure Adjustment
x402
Bowditch Length-Proportional Traverse Closure Adjustment is a paid API for AI agents from detect.halowerk.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-11-04).
Computes an auditable, proportional (Bowditch/compass rule) closure correction for a supplied survey traverse, distributing linear misclosure across legs in proportion to their lengths.
Price / call$0.003
Success—
StatusUnknown
How this service works
Compute an auditable proportional closure correction for a supplied traverse.
Output
Returns the corrected traverse with per-leg closure corrections distributed proportionally to leg length (Bowditch/compass rule), including the raw linear misclosure vector, the correction applied to each leg's northing and easting components, and an auditable breakdown suitable for survey documentation.
Example use cases
Cadastral boundary survey closure
“I have a cadastral traverse with 5 legs that doesn't quite close — start is at (5000, 10000), the supposed end is (5012, 10008), and the legs are: 300 m at 30°, 250 m at 120°, 180 m at 210°, 220 m at 300°, and 140 m at 15°. Can you apply the Bowditch compass rule to distribute the misclosure proportionally and give me the corrected leg endpoints?”
Construction site control traverse balance
“Our construction site control survey traverse starts at (0, 0), should end at (482.3, 157.6), and has four legs: 200 m at 18°, 310 m at 95°, 175 m at 200°, and 260 m at 310°. Run a Bowditch length-proportional closure adjustment on it so we get an auditable correction for each leg.”
Mining survey underground traverse correction
“I need to balance an underground mining traverse — it starts at coordinates (−200, −500), closes on (−185, −430), and has six legs with lengths and azimuths: 80 m at 5°, 60 m at 90°, 95 m at 175°, 70 m at 265°, 55 m at 350°, and 40 m at 60°. Please apply the Bowditch compass rule and show me the proportional correction for each leg.”
Technical details
Endpoint
POSThttps://detect.halowerk.com/v1/F-TD2000-GEO-INDUSTRY-B003/bowditch-length-proportional-traverse-closure-adjustment?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a standards-compliant, auditable Bowditch (compass rule) closure correction for a plane survey traverse and require a documented per-leg adjustment proportional to leg length. It is ideal for cadastral, construction, and mining survey workflows where an audit trail is mandatory. Prefer this over generic geometry utilities when the input is specifically a surveying traverse with azimuths and lengths and the output must conform to surveying professional standards.
Side effects
- Traverse leg count outside 2–64 range returns a validation error
- Coordinates or lengths outside ±1,000,000 / 0.000001 bounds are rejected
- Degenerate traverse where total length is effectively zero causes division error
- Malformed or missing required fields (start, end, legs, length, azimuth_degrees) return 400-level errors
- Payment failure (x402) if USDC balance insufficient
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| artifact | object |
Tags
x402
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