VertexDataReaderV2

Index

Constructors

• constructor

Methods

• deflateToRef
• getFaceCount
• getIndexCount
• getVertexCount
• readEdgeIndices
• readHeader

Constructors

publicconstructor

• new VertexDataReaderV2(_buffer: ArrayBuffer): VertexDataReaderV2

• Parameters

  • _buffer: ArrayBuffer

  Returns VertexDataReaderV2

Methods

publicdeflateToRef

• deflateToRef(meshOffset: number, dst: VertexData): VertexData

• Parameters

  • meshOffset: number

  • dst: VertexData

  Returns VertexData

publicgetFaceCount

• getFaceCount(meshOffset: number): number

• Parameters

  • meshOffset: number

  Returns number

publicgetIndexCount

• getIndexCount(meshOffset: number): number

• Parameters

  • meshOffset: number

  Returns number

publicgetVertexCount

• getVertexCount(meshOffset: number): number

• Parameters

  • meshOffset: number

  Returns number

publicreadEdgeIndices

• readEdgeIndices(meshOffset: number): undefined | TypedArray

• Reads edge indices for a mesh, returning a typed array view into the underlying buffer. Returns undefined if the mesh has no edges.

  Validates the on-disk layout against the buffer's byte length — a crafted or truncated t8gd file must not be able to produce an OOB view or a DataView RangeError.

  The returned indices reference positions in the t8gd vertex array (position-deduplicated, one entry per unique XYZ). This is the same index space as deflateToRef writes into dst.positions. Consumers that expand vertices for per-vertex normals must be aware that edge indices do NOT map into the expanded array — use the original positions for lookup.

  ---

  Parameters

  • meshOffset: number

  Returns undefined | TypedArray

publicreadHeader

• readHeader(offset: number): MeshHeader

• Parameters

  • offset: number

  Returns MeshHeader