Paste survey stations as MD inclination azimuth (one per line,
depth in your chosen unit, angles in degrees) and get TVD, northing/easting, closure and
dogleg severity per station.
Minimum curvature, the industry-standard survey calculation: dogleg cos β = cos I₁ cos I₂ + sin I₁ sin I₂ cos(A₂−A₁); ratio factor RF = (2/β)·tan(β/2); ΔTVD = (ΔMD/2)(cos I₁+cos I₂)·RF, and likewise for northing (sin I cos A) and easting (sin I sin A). Dogleg severity is β normalised per 30 m or 100 ft. As published in Sawaryn & Thorogood, SPE 84246.
Planning and QC aid; definitive trajectories come from your directional survey provider's corrected data.