geotrellis.raster.io.ascii.IntReadState.scala Maven / Gradle / Ivy

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/*
 * 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.raster.io.ascii

import geotrellis.raster._

trait IntReadState extends ReadState {
  // must override
  def getNoDataValue: Int

  protected[this] override def translate(tile: MutableArrayTile) {
    var i = 0
    val len = tile.size
    val nd = getNoDataValue
    while (i < len) {
      if (tile(i) == nd) tile(i) = NODATA
      i += 1
    }
  }
}