Packages

c

geotrellis.raster.mapalgebra.focal.hillshade

SurfacePointCalculation

abstract class SurfacePointCalculation[T] extends FocalCalculation[T]

Calculation used for surface point calculations such as Slope, Aspect, and Hillshade

Uses a specific traversal strategy for performance benefits.

Note

For edge cells, the neighborhood points that lie outside the extent of the raster will be counted as having the same value as the focal point.

Linear Supertypes
FocalCalculation[T], Resulting[T], AnyRef, Any
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Inherited
  1. SurfacePointCalculation
  2. FocalCalculation
  3. Resulting
  4. AnyRef
  5. Any
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Visibility
  1. Public
  2. All

Instance Constructors

  1. new SurfacePointCalculation(r: Tile, n: Neighborhood, analysisArea: Option[GridBounds[Int]], cellSize: CellSize, target: TargetCell = TargetCell.All)

Abstract Value Members

  1. abstract val copyOriginalValue: (Int, Int, Int, Int) ⇒ Unit

    Copies original value to result, (focusCol: Int, focusRow: Int, resultCol: Int, rowRow: Int) => Unit

    Copies original value to result, (focusCol: Int, focusRow: Int, resultCol: Int, rowRow: Int) => Unit

    Definition Classes
    Resulting
  2. abstract def result: T
    Definition Classes
    Resulting
  3. abstract def setValue(x: Int, y: Int, s: SurfacePoint): Unit

    Sets a result at (x, y) from a SurfacePoint

    Sets a result at (x, y) from a SurfacePoint

    Implementors need to provide this function to store the results of the surface point calculation.

Concrete Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##(): Int
    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  4. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  5. var base: Array[Double]
  6. val bounds: GridBounds[Int]
    Definition Classes
    FocalCalculation
  7. def calcSurface(): Unit
    Attributes
    protected
  8. var cellHeight: Double
  9. val cellSize: CellSize
  10. var cellWidth: Double
  11. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()
  12. var east: Array[Double]
  13. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  14. def equals(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  15. def execute(): T

    Executes a specific traversal strategy for SurfacePointCalculation.

    Executes a specific traversal strategy for SurfacePointCalculation. The difference between this and ScanLine for CellwiseCalculation is that for edge cases, the value at the focus is added in place of out-of-border neighborhood values.

    Definition Classes
    SurfacePointCalculation → FocalCalculation
    Note

    Assumes a Square(1) neighborhood.

    ,

    All values in the neighborhood that are outside the raster grid are counted as having the focal value. Note that in the case the cell is outside the analysis area, but still inside the raster, the raster value will still be used.

  16. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  17. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  18. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  19. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  20. var lastY: Int
  21. def moveRight(): Unit
  22. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  23. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  24. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  25. val r: Tile
    Definition Classes
    FocalCalculation
  26. val s: SurfacePoint
  27. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  28. val target: TargetCell
    Definition Classes
    FocalCalculation
  29. def toString(): String
    Definition Classes
    AnyRef → Any
  30. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  31. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  32. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... ) @native()
  33. var west: Array[Double]

Inherited from FocalCalculation[T]

Inherited from Resulting[T]

Inherited from AnyRef

Inherited from Any

Ungrouped