geotrellis.spark.mapalgebra.focal.hillshade.HillshadeTileRDDMethods.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.focal.hillshade

import geotrellis.spark.mapalgebra.focal._
import geotrellis.raster.mapalgebra.focal.hillshade._
import geotrellis.raster.mapalgebra.focal._

trait HillshadeTileLayerRDDMethods[K] extends FocalOperation[K] {
  def hillshade(azimuth: Double = 315, altitude: Double = 45, zFactor: Double = 1) = {
    val n = Square(1)
    focalWithCellSize(n) { (tile, bounds, cellSize) =>
      Hillshade(tile, n, bounds, cellSize, azimuth, altitude, zFactor)
    }
  }
}