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

Go to download

Show more of this group Show more artifacts with this name
Show all versions of geotrellis-spark_2.10 Show documentation

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

The newest version!

package geotrellis.spark.mapalgebra.local

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

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

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

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

  /** Max the values of each cell in each raster.  */
  def localMax(others: Seq[RDD[(K, Tile)]]): RDD[(K, Tile)] = localMax(others, None)
  def localMax(others: Seq[RDD[(K, Tile)]], partitioner: Option[Partitioner]): RDD[(K, Tile)] =
    self.combineValues(others, partitioner)(Max.apply)
}