cadSet/SimpleCADAPI/docs/api/analyze_tolerance.md

analyze_tolerance

API Definition

def analyze_tolerance(value: ScalarLike, *, method: ToleranceMethod = 'worst_case') -> ToleranceAnalysis

Source: tolerance.py

Import Surface

• top-level: from simplecadapi import analyze_tolerance

Description

Propagate source manufacturing tolerances through a scalar expression.

worst_case returns guaranteed interval bounds. Affine chains are dependency-aware, so repeated variables such as x - x cancel exactly; nonlinear chains use conservative interval arithmetic. rss performs a first-order root-sum-square calculation using analytic sensitivities.

Unit-aware variables are converted to canonical CAD units before propagation. The returned analysis reports the inferred physical dimension and canonical result unit. Every variable in the expression must declare a source tolerance.