geotrellis.engine.stats.StatsRasterSourceMethods.scala Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of geotrellis-engine_2.10 Show documentation

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

There is a newer version: 0.10.3

Show newest version

/*
 * Copyright (c) 2014 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.engine.stats

import geotrellis.engine._
import geotrellis.raster._
import geotrellis.raster.histogram._
import geotrellis.raster.summary._

@deprecated("geotrellis-engine has been deprecated", "Geotrellis Version 0.10")
trait StatsRasterSourceMethods extends RasterSourceMethods {
  private def convergeHistograms(histograms: Seq[Histogram[Int]]): Histogram[Int] =
    histograms.reduce(_ merge _)

  def tileHistograms(): DataSource[Histogram[Int], Histogram[Int]] =
    rasterSource map (_.histogram) withConverge(convergeHistograms)

  def histogram(): ValueSource[Histogram[Int]] =
    rasterSource map(_.histogram) converge(convergeHistograms)

  def statistics(): ValueSource[Statistics[Int]] =
    histogram map (_.statistics().get)

  def classBreaks(numBreaks: Int): ValueSource[Array[Int]] =
    histogram map (_.quantileBreaks(numBreaks))
}