Struct Tolerances 

pub struct Tolerances { /* private fields */ }

The threshold constants the kernel decides identity by, for a given model scale.

linear_scale is the length of one model unit in millimetres: 1.0 for a model in millimetres, 1000.0 for metres, 25.4 for inches. Linear tolerances scale with it. Angular and parametric ones do not.

Implementations

impl Tolerances

pub const fn millimetres() -> Self

Tolerances for a model whose unit is one millimetre.

pub const fn metres() -> Self

Tolerances for a model whose unit is one metre.

pub const fn inches() -> Self

Tolerances for a model whose unit is one inch.

pub fn with_scale(mm_per_unit: f64) -> OgeomResult<Self>

Tolerances for a model whose unit is mm_per_unit millimetres.

Every linear tolerance derived from the scale, and its square, must be a normal f64: comparisons are made both on distances and on squared distances, and an infinite, zero or subnormal threshold would decide them by overflow or underflow. That accepts scales from about 7.5e-161 to about 6.7e144 millimetres per unit.

Errors

OgeomError::Construction if the scale is not finite and positive, or is outside that range.

pub const fn scale(self) -> f64

Millimetres per model unit.

pub fn confusion(self) -> f64

Distance below which two points are the same point.

pub const fn angular(self) -> f64

Angle below which two directions are parallel. Independent of scale.

pub fn intersection(self) -> f64

Convergence target for intersection algorithms.

pub fn approximation(self) -> f64

Accuracy target when fitting curves and surfaces.

pub const fn parametric(self) -> f64

Confusion in parametric space. Independent of scale.

pub fn degenerate(self) -> f64

Length below which an entity is degenerate.

pub fn same_length(self, a: f64, b: f64) -> bool

Whether two lengths are indistinguishable.

pub fn same_parameter(self, a: f64, b: f64) -> bool

Whether two parameters are indistinguishable.

Trait Implementations

impl Clone for Tolerances

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Tolerances

impl Debug for Tolerances

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Tolerances

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for Tolerances

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Tolerances