/
CellGridLayoutRDDMethods.scala
38 lines (32 loc) · 1.22 KB
/
CellGridLayoutRDDMethods.scala
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/*
* Copyright 2016 Azavea
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package geotrellis.spark
import geotrellis.raster._
import geotrellis.spark.tiling.LayoutDefinition
import geotrellis.util._
import org.apache.spark.rdd._
import scala.reflect.ClassTag
abstract class CellGridLayoutRDDMethods[K: SpatialComponent: ClassTag, V <: CellGrid, M: GetComponent[?, LayoutDefinition]]
extends MethodExtensions[RDD[(K, V)] with Metadata[M]] {
def asRasters(): RDD[(K, Raster[V])] = {
val layout = self.metadata.getComponent[LayoutDefinition]
self.mapPartitions({ part =>
part.map { case (key, tile) =>
(key, Raster(tile, key.getComponent[SpatialKey].tileExtent(layout)))
}
}, true)
}
}