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object Z2

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  1. final val MAX_BITS: Int(31)
  2. final val MAX_DIM: Int(2)
  3. final val MAX_MASK: Int(2147483647)
  4. def apply(x: Int, y: Int): Z2

    Bits of x and y will be encoded as ....y1x1y0x0

  5. def combine(z: Long): Int

    combine every other bit to form a value.

    combine every other bit to form a value. Maximum value is 31 bits.

  6. def load(target: Long, p: Long, bits: Int, dim: Int): Long

    Loads either 1000...

    Loads either 1000... or 0111... into starting at given bit index of a given dimention

  7. def split(value: Long): Long

    insert 0 between every bit in value.

    insert 0 between every bit in value. Only first 31 bits can be considred.

  8. def unapply(z: Z2): Option[(Int, Int)]
  9. def zdivide(p: Z2, rmin: Z2, rmax: Z2): (Z2, Z2)
  10. def zranges(min: Z2, max: Z2): Seq[(BigInt, BigInt)]

    Recurse down the quad-tree and report all z-ranges which are contained in the rectangle defined by the min and max points