geotrellis.raster.io.geotiff.UInt32GeoTiffTile.scala Maven / Gradle / Ivy

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

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package geotrellis.raster.io.geotiff

import geotrellis.raster._
import geotrellis.raster.io.geotiff.compression._
import spire.syntax.cfor._

class UInt32GeoTiffTile(
  val compressedBytes: Array[Array[Byte]],
  val decompressor: Decompressor,
  segmentLayout: GeoTiffSegmentLayout,
  compression: Compression,
  val cellType: FloatCells with NoDataHandling
) extends GeoTiffTile(segmentLayout, compression) with UInt32GeoTiffSegmentCollection {
  def mutable: MutableArrayTile = {
    val arr = Array.ofDim[Float](cols * rows)
    cfor(0)(_ < segmentCount, _ + 1) { segmentIndex =>
      val segment =
        getSegment(segmentIndex)
      val segmentTransform = segmentLayout.getSegmentTransform(segmentIndex)
      cfor(0)(_ < segment.size, _ + 1) { i =>
        val col = segmentTransform.indexToCol(i)
        val row = segmentTransform.indexToRow(i)
        if(col < cols && row < rows) {
          arr(row * cols + col) = segment.get(i)
        }
      }
    }
    FloatArrayTile(arr, cols, rows, cellType)
  }
}