package hydrology
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Type Members
- class CursorFillCalc extends CursorCalculation[Tile] with IntArrayTileResult
- class CursorFillCalcDouble extends CursorCalculation[Tile] with DoubleArrayTileResult
- case class FillOptions(threshold: Double) extends Product with Serializable
- trait HydrologyMethods extends MethodExtensions[Tile]
- trait Implicits extends AnyRef
Value Members
-
object
Accumulation
An object which houses functions related to hydrological accumulation.
-
object
Fill
Fills sink values in a raster.
Fills sink values in a raster. Returns a raster of DoubleConstantNoDataCellType
- Note
The threshold in the options will be used to determine whether or not something is a sink, so if you find that this operation is incorrectly classifying your data, make sure you have set the threshold appropriately.
- object FillOptions extends Serializable
-
object
FlowDirection
Operation to compute a flow direction raster from an elevation raster
Operation to compute a flow direction raster from an elevation raster
The directional encoding is from: Greenlee,D. D. 1987. "Tile and Vector Processing for Scanned Linework." Photogrammetric Engineering and Remote Sensing (ISSN 0099-1112),vol. 53,Oct. 1987,p. 1383-1387.
The direction of flow is towards the neighboring cell with the largest drop in elevation. If two or more cells have the same drop in elevation,their directional values are added together. The 8-bit encoding of the direction preserves the multi-directional property.
Sinks, cells which have no drop in elevation towards any neighbor, have no direction of flow.
- object Implicits extends Implicits