Class HiddenLineClassifier

Index

Constructors

Methods

applyVisibility buildDepthBuffer classifyLines

Constructors

constructor

new HiddenLineClassifier(
options?: Partial<HiddenLineOptions>,
): HiddenLineClassifier
Parameters
- Optionaloptions: Partial<HiddenLineOptions>
Returns HiddenLineClassifier

Methods

applyVisibility

applyVisibility(lines: DrawingLine[]): DrawingLine[]
Update lines with visibility classification Returns new array with visibility set
Parameters
- lines: DrawingLine[]
Returns DrawingLine[]

buildDepthBuffer

buildDepthBuffer(
    meshes: MeshData[],
    plane: SectionPlaneConfig,
    occluderDepth: number,
    bounds?: Bounds2D,
): void
Build the occluder depth buffer for the KEPT half of the section (flip-adjusted depth in [-occluderDepth, 0]), storing view depths.

Takes the FULL plane config (issue #2639): a custom (face-picked) plane is honoured via the same signedDepth / projectPointForPlane helpers the line producers use, so buffer and lines agree by construction. For cardinal planes the projection is numerically identical to the old axis/position/flipped path (same axis mapping, same flipped ? -u : u).
Parameters
- meshes: MeshData[]
  Source meshes (world = per-mesh origin + local positions)
- plane: SectionPlaneConfig
  Section plane (cardinal fields, plus optional customPlane)
- occluderDepth: number
  How far into the kept half occluders rasterize
- Optionalbounds: Bounds2D
  Optional pre-computed 2D bounds
Returns void

classifyLines

classifyLines(lines: DrawingLine[]): VisibilityResult[]
Classify lines as visible or hidden based on depth buffer
Parameters
- lines: DrawingLine[]
Returns VisibilityResult[]