/
Implicits.scala
199 lines (168 loc) · 7.82 KB
/
Implicits.scala
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
package geotrellis.spark.cog
import geotrellis.raster._
import geotrellis.raster.crop._
import geotrellis.raster.io.geotiff._
import geotrellis.spark._
import geotrellis.spark.tiling._
import geotrellis.util._
import spire.syntax.cfor._
object Implicits extends Implicits
// TODO: remove asInstanceOf casts
trait Implicits {
implicit class withSinglebandGeoTiffConstructMethods(val self: Tile) extends GeoTiffConstructMethods[Tile] {
def toGeoTiff[K](
nextLayout: LayoutDefinition,
gb: GridBounds,
md: TileLayerMetadata[K],
options: GeoTiffOptions,
overviews: List[GeoTiff[Tile]] = Nil
): SinglebandGeoTiff = {
SinglebandGeoTiff(
GeoTiffTile(self.crop(nextLayout.mapTransform(gb), md.extent, Crop.Options(clamp = false)), options),
md.extent,
md.crs,
Tags.empty,
options = options,
overviews = overviews.map(_.asInstanceOf[SinglebandGeoTiff])
)
}
}
implicit class withMultibandGeoTiffConstructMethods(val self: MultibandTile) extends GeoTiffConstructMethods[MultibandTile] {
def toGeoTiff[K](
nextLayout: LayoutDefinition,
gb: GridBounds,
md: TileLayerMetadata[K],
options: GeoTiffOptions,
overviews: List[GeoTiff[MultibandTile]] = Nil
): MultibandGeoTiff = {
MultibandGeoTiff(
GeoTiffMultibandTile(self.crop(nextLayout.mapTransform(gb), md.extent, Crop.Options(clamp = false)), options),
md.extent,
md.crs,
Tags.empty,
options = options,
overviews.map(_.asInstanceOf[MultibandGeoTiff])
)
}
}
implicit class withSinglebandGeoTiffSegmentConstructMethods[K](val self: Iterable[(K, Tile)])
(implicit val spatialComponent: SpatialComponent[K]) extends GeoTiffSegmentConstructMethods[K, Tile] {
// TODO: consider moving this code somewhere else, it's in fact a bit modified GeoTiffTile.apply function code
def toGeoTiff(
nextLayout: LayoutDefinition,
md: TileLayerMetadata[K],
options: GeoTiffOptions,
overviews: List[GeoTiff[Tile]] = Nil
): SinglebandGeoTiff = {
val geoTiffTile: GeoTiffTile = {
val (layoutCols, layoutRows) = gb.width * nextLayout.tileCols -> gb.height * nextLayout.tileRows
val segmentLayout = GeoTiffSegmentLayout(layoutCols, layoutRows, options.storageMethod, BandInterleave, BandType.forCellType(md.cellType))
val segmentCount = segmentLayout.tileLayout.layoutCols * segmentLayout.tileLayout.layoutRows
val compressor = options.compression.createCompressor(segmentCount)
val segments: Map[Int, Array[Byte]] =
self
.map { case (key, tile) =>
val spatialKey = key.getComponent[SpatialKey]
val updateCol = (spatialKey.col - gb.colMin) * md.tileLayout.tileCols
val updateRow = (spatialKey.row - gb.rowMin) * md.tileLayout.tileRows
val index = segmentLayout.getSegmentIndex(updateCol, updateRow)
index -> compressor.compress(tile.toBytes, index)
}
.toMap
val segmentBytes = Array.ofDim[Array[Byte]](segmentCount)
cfor(0)(_ < segmentCount, _ + 1) { i =>
segmentBytes(i) = segments.getOrElse(i, compressor.compress(Array[Byte](), i))
}
GeoTiffTile(new ArraySegmentBytes(segmentBytes), compressor.createDecompressor, segmentLayout, options.compression, md.cellType)
}
val re = RasterExtent(nextLayout.mapTransform(gb), geoTiffTile.cols, geoTiffTile.rows)
val gridBounds = re.gridBoundsFor(md.extent, clamp = false)
SinglebandGeoTiff(
geoTiffTile.crop(gridBounds),
md.extent,
md.crs,
Tags.empty,
options = options,
overviews = overviews.map(_.asInstanceOf[SinglebandGeoTiff])
)
}
}
implicit class withMultibandGeoTiffSegmentConstructMethods[K](val self: Iterable[(K, MultibandTile)])
(implicit val spatialComponent: SpatialComponent[K]) extends GeoTiffSegmentConstructMethods[K, MultibandTile] {
// TODO: consider moving this code somewhere else, it's in fact a bit modified GeoTiffMultibandTile.apply function code
def toGeoTiff(
nextLayout: LayoutDefinition,
md: TileLayerMetadata[K],
options: GeoTiffOptions,
overviews: List[GeoTiff[MultibandTile]] = Nil
): MultibandGeoTiff = {
val geoTiffTile: GeoTiffMultibandTile = {
val bandCount = self.head._2.bandCount
// TODO: Handle band interleave construction.
val (layoutCols, layoutRows) = gb.width * nextLayout.tileCols -> gb.height * nextLayout.tileRows
val segmentLayout = GeoTiffSegmentLayout(layoutCols, layoutRows, options.storageMethod, PixelInterleave, BandType.forCellType(md.cellType))
val segmentCount = segmentLayout.tileLayout.layoutCols * segmentLayout.tileLayout.layoutRows
val compressor = options.compression.createCompressor(segmentCount)
val segmentBytes = Array.ofDim[Array[Byte]](segmentCount)
val segmentTiles = Array.ofDim[Array[Tile]](segmentCount)
segmentLayout.interleaveMethod match {
case PixelInterleave => {
cfor(0)(_ < bandCount, _ + 1) { bandIndex =>
val bandTiles =
self
.map { case (key, tile) =>
val spatialKey = key.getComponent[SpatialKey]
val updateCol = (spatialKey.col - gb.colMin) * md.tileLayout.tileCols
val updateRow = (spatialKey.row - gb.rowMin) * md.tileLayout.tileRows
val index = segmentLayout.getSegmentIndex(updateCol, updateRow)
index -> tile.band(bandIndex)
}.toMap
cfor(0)(_ < segmentCount, _ + 1) { segmentIndex =>
val bandTile = bandTiles.getOrElse(segmentIndex, ArrayTile.empty(md.cellType, md.tileLayout.tileCols, md.tileLayout.tileRows))
if (bandIndex == 0) {
segmentTiles(segmentIndex) = Array.ofDim[Tile](bandCount)
}
segmentTiles(segmentIndex)(bandIndex) = bandTile
}
}
val byteCount = md.cellType.bytes
cfor(0)(_ < segmentCount, _ + 1) { i =>
val tiles = segmentTiles(i)
val cols = tiles(0).cols
val rows = tiles(0).rows
val segBytes = Array.ofDim[Byte](cols * rows * bandCount * byteCount)
val tileBytes = Array.ofDim[Array[Byte]](bandCount)
cfor(0)(_ < bandCount, _ + 1) { b =>
tileBytes(b) = tiles(b).toBytes
}
var segmentIndex = 0
cfor(0)(_ < cols * rows, _ + 1) { cellIndex =>
cfor(0)(_ < bandCount, _ + 1) { bandIndex =>
cfor(0)(_ < byteCount, _ + 1) { b =>
val bytes = tileBytes(bandIndex)
segBytes(segmentIndex) = bytes(cellIndex * byteCount + b)
segmentIndex += 1
}
}
}
segmentBytes(i) = compressor.compress(segBytes, i)
}
}
case BandInterleave =>
throw new Exception("Band interleave construction is not supported yet.")
}
GeoTiffMultibandTile(new ArraySegmentBytes(segmentBytes), compressor.createDecompressor, segmentLayout, options.compression, bandCount, md.cellType)
}
val re = RasterExtent(nextLayout.mapTransform(gb), geoTiffTile.cols, geoTiffTile.rows)
val gridBounds = re.gridBoundsFor(md.extent, clamp = false)
MultibandGeoTiff(
geoTiffTile.crop(gridBounds),
md.extent,
md.crs,
Tags.empty,
options = options,
overviews = overviews.map(_.asInstanceOf[MultibandGeoTiff])
)
}
}
}