Enum MeshShading 

pub enum MeshShading {
    Triangles(Vec<MeshTriangle>),
    Patches(Vec<MeshPatch>),
}

Evaluated geometry + colour for a Type 4–7 shading (§8.7.4.5.5–8). All four mesh types reduce to either a list of Gouraud-shaded triangles (Types 4 and 5) or a list of colour patches each bounded by four cubic Bézier curves (Types 6 and 7), so this enum carries the two shapes. Every coordinate is in the shading’s target coordinate space (the pre-ctm space the stream’s Decode array maps into); every colour is already reduced to device RGB through the shading’s colour space (and its optional parametric Function).

Variants

Triangles(Vec<MeshTriangle>)

Types 4 (free-form) and 5 (lattice-form) Gouraud-shaded triangle meshes. Each triangle carries three MeshVertexes; the interior colour is the Gouraud (barycentric-linear) interpolation of the three vertex colours.

Patches(Vec<MeshPatch>)

Types 6 (Coons) and 7 (tensor-product) patch meshes. Each patch is a bicubic surface bounded by four cubic Bézier curves with a colour at each of its four corners (bilinearly interpolated over the patch interior).

Trait Implementations

impl Clone for MeshShading

fn clone(&self) -> MeshShading

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MeshShading

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

Formats the value using the given formatter.

impl PartialEq for MeshShading

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for MeshShading