Struct ParseOptions 

pub struct ParseOptions {
    pub curve_tessellation_samples: u32,
}

Parser configuration knobs.

The default leaves free-form geometry as captured-only extras (back-compatible with rounds 1-6). Set ParseOptions::curve_tessellation_samples to a non-zero value to enable evaluation of cstype bezier / cstype bspline (rational + non-rational) curves into real LineStrip primitives (see crate::ObjDecoder::with_curve_tessellation).

Fields

curve_tessellation_samples: u32

When > 0, every curv directive under an active cstype bezier / cstype rat bezier / cstype bspline / cstype rat bspline header is evaluated at curve_tessellation_samples + 1 uniformly-spaced parameter values. The resulting polyline lands on a synthetic mesh named "obj:curves" whose primitives carry Topology::LineStrip. The directive itself is still preserved in Scene3D::extras["obj:freeform_directives"] so a round-trip re-emit produces the same free-form section — downstream consumers can opt out of the synthetic mesh by filtering on Primitive::extras["obj:tessellated_curve"] == true.

B-spline curves additionally require a valid parm u knot vector (length must equal control-point count + degree + 1 per spec §“B-spline” condition 6); curves with an incomplete knot vector are skipped silently.

0 disables tessellation (the default; back-compat with r1-r6).

Trait Implementations

impl Clone for ParseOptions

fn clone(&self) -> ParseOptions

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ParseOptions

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

Formats the value using the given formatter.

impl Default for ParseOptions

fn default() -> ParseOptions

Returns the “default value” for a type.