Class SubdivisionModifier

The SubdivisionModifier subdivides triangle mesh geometries.

Hierarchy

SubdivisionModifier
- EdgeLengthGeometrySubdivisionModifier
- SphericalGeometrySubdivisionModifier

Index

Constructors

constructor

Methods

Constructors

constructor

new SubdivisionModifier(): SubdivisionModifier

- Defined in @here/harp-geometry/lib/SubdivisionModifier.ts:16
Constructs a new SubdivisionModifier.

Returns SubdivisionModifier

Methods

modify

modify(geometry: BufferGeometry): BufferGeometry

- Defined in @here/harp-geometry/lib/SubdivisionModifier.ts:33
Subdivides the faces of the given [[THREE.BufferGeometry]].

This method modifies (in-place) the vertices and the faces of the geometry. Please note that only the vertex position and their UV coordinates are subdivided. Normals, vertex colors and other attributes are left unmodified.

Parameters
- geometry: BufferGeometry
  
  The [[THREE.BufferGeometry]] to subdivide.
Returns BufferGeometry

Protected Abstract shouldSplitTriangle

shouldSplitTriangle(a: Vector3, b: Vector3, c: Vector3): number | undefined

- Defined in @here/harp-geometry/lib/SubdivisionModifier.ts:191
Returns if the given triangle should be subdivide.

Implementations of this function should return the index of the edge of the triangle to split (0, 1, or 2) or undefined if the triangle doesn't need to be subdivided.

Parameters
- a: Vector3
  
  The position of the first vertex of the triangle.
- b: Vector3
  
  The position of the second vertex of the triangle.
- c: Vector3
  
  The position of the third vertex of the triangle.
Returns number | undefined

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