Enum MeshFrame 

pub enum MeshFrame {
    SiteLocal {
        translation: (f64, f64, f64),
    },
    ModelRtc {
        anchor: (f64, f64, f64),
    },
    RawIfc,
}

The frame a pipeline meshes into, with the translation it subtracts.

Both pipelines build it with MeshFrame::select. The offset, the needs-shift bit and the wire tag are read off the one value, so they cannot disagree with each other.

Variants

SiteLocal

IfcSite has a non-identity translation: subtract it. Vertices land relative to the site origin, small floats in a relatable frame. The native pipeline also removes the site rotation (convert_mesh_to_site_local) for this tier.

Fields

translation: (f64, f64, f64)

ModelRtc

IfcSite is identity or missing but the sampled geometry lives at large world coordinates: subtract the detected anchor so f32 keeps its precision. No rotation is removed.

Fields

anchor: (f64, f64, f64)

RawIfc

Neither anchor applies: subtract nothing.

Implementations

impl MeshFrame

pub fn select( site_translation: Option<(f64, f64, f64)>, detected: Option<RtcVerdict>, ) -> Self

The three-tier selection.

• site_translation: the IfcSite placement’s translation (metres), None when the pipeline has no site tier (the browser pre-pass and the appearance authoring path mesh in world axes and pass None deliberately: see stream_meta::resolve_stream_meta).
• detected: the RTC detector’s verdict (see GeometryRouter::detect_rtc_offset_with_fallback). A Large verdict is honoured whatever its anchor’s own magnitude: the placement-bounds fallback decides on the bbox corners and anchors on the centre, which can be inside 10 km while the coordinates are not. Only an anchor at the origin (nothing to subtract) falls through to RawIfc.

pub fn for_overlay( router: &GeometryRouter, content: &[u8], decoder: &mut EntityDecoder<'_>, ) -> Self

The frame for a consumer that parses the file itself and has no job list: the symbolic, grid and alignment overlays (#4665). It runs the browser pre-pass selection (the bounds-fallback ladder, no site tier) with every geometry entity of the file as the jobs. The pre-passes sample a narrower job window, so a model with widely spread elements can still get a different median anchor (#4611), and the native site tier is not applied (#4706).

pub fn rtc_offset(self) -> (f64, f64, f64)

The translation the router subtracts from every world vertex before the f32 cast; (0,0,0) for MeshFrame::RawIfc.

pub fn needs_shift(self) -> bool

True when the frame subtracts anything at all.

pub fn coordinate_space(self) -> MeshCoordinateSpace

The wire tag for this frame.

Trait Implementations

impl Clone for MeshFrame

fn clone(&self) -> MeshFrame

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for MeshFrame

impl Debug for MeshFrame

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

Formats the value using the given formatter.

impl PartialEq for MeshFrame

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for MeshFrame