header
header: { 
    average: Float32Array; 
    childFlags: number; 
    debug1: number; 
    eigenVector: [Float32Array, Float32Array, Float32Array]; 
    eigenVectorLength: [number, number, number]; 
    indices: Int32Array; 
}
Type declaration
- 
average: Float32Array
- 
childFlags: number
- 
debug1: number
- 
eigenVector: [Float32Array, Float32Array, Float32Array]
- 
eigenVectorLength: [number, number, number]
- 
indices: Int32Array