geotrellis.spark.mapalgebra.local.AddTileRDDMethods.scala Maven / Gradle / Ivy

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GeoTrellis is an open source geographic data processing engine for high performance applications.

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package geotrellis.spark.mapalgebra.local

import geotrellis.spark._
import geotrellis.spark.mapalgebra._
import geotrellis.raster._
import geotrellis.raster.mapalgebra.local.Add
import org.apache.spark.Partitioner
import org.apache.spark.rdd.RDD

trait AddTileRDDMethods[K] extends TileRDDMethods[K] {
  /** Add a constant Int value to each cell. */
  def localAdd(i: Int) =
    self.mapValues { r => Add(r, i) }

  /** Add a constant Int value to each cell. */
  def +(i: Int) = localAdd(i)

  /** Add a constant Int value to each cell. */
  def +:(i: Int) = localAdd(i)

  /** Add a constant Double value to each cell. */
  def localAdd(d: Double) =
    self.mapValues { r => Add(r, d) }

  /** Add a constant Double value to each cell. */
  def +(d: Double) = localAdd(d)

  /** Add a constant Double value to each cell. */
  def +:(d: Double) = localAdd(d)

  /** Add the values of each cell in each raster.  */
  def localAdd(other: RDD[(K, Tile)]): RDD[(K, Tile)] = localAdd(other, None)
  def localAdd(other: RDD[(K, Tile)], partitioner: Option[Partitioner]): RDD[(K, Tile)] =
    self.combineValues(other, partitioner) { Add.apply }

  /** Add the values of each cell in each raster. */
  def +(other: RDD[(K, Tile)]): RDD[(K, Tile)] = localAdd(other, None)

  def localAdd(others: Traversable[RDD[(K, Tile)]]): RDD[(K, Tile)] = localAdd(others, None)
  def localAdd(others: Traversable[RDD[(K, Tile)]], partitioner: Option[Partitioner]): RDD[(K, Tile)] =
    self.combineValues(others, partitioner) { Add.apply }

  def +(others: Traversable[RDD[(K, Tile)]]): RDD[(K, Tile)] = localAdd(others, None)
}