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• 0.9.2
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• Force.scala

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geotrellis.logic.Force.scala Maven / Gradle / Ivy

package geotrellis.logic

import geotrellis._
import geotrellis._
import geotrellis.process._

/**
 * Ensure that the result of the operation will be evaluated.
 * 
 * Some raster operations are lazily evaluated, which means that the
 * operations will defer their execution until the
 * moment where execution is necessary.  This allows, for example,
 * some raster operations to be combined and executed at the same
 * time instead of in sequence. 
 *
 * Force will evaluate a lazily evaluated operation if it has not 
 * yet been evaluated.
 * 
 */
// case class Force[A](op:Op[A]) extends Op[A] {
//   def _run() = runAsync(op :: Nil)
//   val nextSteps:Steps = {
//     case (r:Raster) :: Nil => Result(r.force.asInstanceOf[A])
//     case a :: Nil => Result(a.asInstanceOf[A])
//   }
// }