geotrellis.server.ogc.style.RGBStyle.scala Maven / Gradle / Ivy

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GeoTrellis Server is a set of components designed to simplify viewing, processing, and serving raster data from arbitrary sources with an emphasis on doing so in a functional style.

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/*
 * Copyright 2020 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.server.ogc.style

import geotrellis.proj4.CRS
import geotrellis.raster.{MultibandTile, Raster}
import geotrellis.raster.histogram.Histogram
import geotrellis.raster.io.geotiff.tags.codes.ColorSpace
import geotrellis.raster.io.geotiff.{GeoTiffOptions, MultibandGeoTiff}
import geotrellis.server.ogc.OutputFormat

case class RGBStyle(name: String, title: String, legends: List[LegendModel] = Nil) extends OgcStyle {
  def renderRaster(raster: Raster[MultibandTile], crs: CRS, format: OutputFormat, hists: List[Histogram[Double]]): Array[Byte] =
    format match {
      case _: OutputFormat.Png  => raster.tile.renderPng()
      case OutputFormat.Jpg     => raster.tile.renderJpg()
      case OutputFormat.GeoTiff => MultibandGeoTiff(raster, crs, GeoTiffOptions(colorSpace = ColorSpace.RGB)).toCloudOptimizedByteArray
    }
}