Euclidean coordinate arithmetic — not GD&T acceptance
2D Coordinate-Deviation Geometry Check
Calculate signed X/Y offsets,radial offset,twice-radial diametral geometry and direction from documented two-dimensional coordinates. The result does not generate or interpret a feature-control frame.
2D geometry result
Implemented arithmetic
Δy=yизмерено−ybasic
r=√(Δx²+Δy²)=hypot(Δx,Δy)
D=2r
θ=atan2(Δy,Δx),normalized to0°≤θ<360°
OpenStax University Physics,Volume1 §2.2 gives vector magnitude √(x²+y²) and the direction-angle relationship. Unit conversions are exact:1in=25.4mm and1µm=0.001mm. D is simply twice the Euclidean radius; no standards-based meaning is inferred.
ISO GPS scope checked
ISO1101:2017,edition4,current/confirmed2022 defines the symbol language and interpretation rules for geometrical specification. ISO5459:2024,edition3 covers datums and datum systems and explicitly excludes verification operators. ISO2692:2021,edition4 defines MMR/LMR/RPR and limits their application to specified linear features of size;it is under systematic review in2026.
Do not mix standards
ASME Y14.5-2018(R2024) separately establishes ASME symbols,rules,definitions,requirements and defaults. ISO GPS and ASME callouts are not interchangeable. Their full texts are licensed;the former generic FCF generator,symbol table,modifier choices and inspection prescriptions were removed rather than reconstructed by guesswork.
No conformance decision
A valid geometrical conformance assessment can require datum establishment,feature association,zone modifiers,material requirements,filters,measurement strategy and uncertainty. Compare this arithmetic with a drawing only after those operations are defined and executed under the exact governing edition and contract.