geotrellis.raster.rasterize

Rasterizer

object Rasterizer

An object holding rasterizer functions.

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Type Members

  1. case class Options(includePartial: Boolean, sampleType: PixelSampleType) extends Product with Serializable

    A type encoding rasterizer options.

Value Members

  1. final def !=(arg0: AnyRef): Boolean

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  2. final def !=(arg0: Any): Boolean

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  3. final def ##(): Int

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  4. final def ==(arg0: AnyRef): Boolean

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  5. final def ==(arg0: Any): Boolean

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  6. object Options extends Serializable

    A companion object for the Options type.

  7. final def asInstanceOf[T0]: T0

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  8. def clone(): AnyRef

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  9. final def eq(arg0: AnyRef): Boolean

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  10. def equals(arg0: Any): Boolean

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  11. def finalize(): Unit

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  12. def foreachCellByGeometry(geom: Geometry, re: RasterExtent, options: Options)(f: (Int, Int) ⇒ Unit): Unit

    Perform a zonal summary by invoking a function on each cell under provided features.

    Perform a zonal summary by invoking a function on each cell under provided features.

    This function is a closure that returns Unit; all results are a side effect of this function.

    Note: the function f should modify a mutable variable as a side effect. While not ideal, this avoids the unavoidable boxing that occurs when a Function3 returns a primitive value.

    geom

    Feature for calculation

    re

    RasterExtent to use for iterating through cells

    options

    Options for the (Multi)Polygon and Extent rasterizers

    f

    A function that takes (col: Int, row: Int) and produces nothing

  13. def foreachCellByGeometry(geom: Geometry, re: RasterExtent)(f: (Int, Int) ⇒ Unit): Unit

    Given a Geometry and a RasterExtent, call the function 'f' at each pixel in the raster extent covered by the geometry.

    Given a Geometry and a RasterExtent, call the function 'f' at each pixel in the raster extent covered by the geometry. The two arguments to the function 'f' are the column and row.

  14. def foreachCellByLineString(line: Line, re: RasterExtent)(f: (Int, Int) ⇒ Unit): Unit

    Iterates over the cells determined by the segments of a LineString.

    Iterates over the cells determined by the segments of a LineString. The iteration happens in the direction from the first point to the last point.

  15. def foreachCellByMultiLineString(g: MultiLine, re: RasterExtent)(f: (Int, Int) ⇒ Unit): Unit

    Apply function f to every cell contained within MultiLineString.

    Apply function f to every cell contained within MultiLineString.

    g

    MultiLineString used to define zone

    re

    RasterExtent used to determine cols and rows

    f

    Function to apply: f(cols, row, feature)

  16. def foreachCellByMultiPoint(p: MultiPoint, re: RasterExtent)(f: (Int, Int) ⇒ Unit): Unit

    Given a MultiPoint and a RasterExtent, call the function 'f' at each pixel in the raster extent covered by the geometry.

    Given a MultiPoint and a RasterExtent, call the function 'f' at each pixel in the raster extent covered by the geometry. The two arguments to the function 'f' are the column and row.

  17. def foreachCellByMultiPolygon[D](p: MultiPolygon, re: RasterExtent, options: Options)(f: (Int, Int) ⇒ Unit): Unit

    Apply function f to every cell contained with MultiPolygon.

    Apply function f to every cell contained with MultiPolygon.

    p

    MultiPolygon used to define zone

    re

    RasterExtent used to determine cols and rows

    options

    The options parameter controls whether to treat pixels as points or areas and whether to report partially-intersected areas.

    f

    Function to apply: f(cols, row, feature)

  18. def foreachCellByMultiPolygon[D](p: MultiPolygon, re: RasterExtent)(f: (Int, Int) ⇒ Unit): Unit

    Given a MultiPolygon and a RasterExtent, call the function 'f' at each pixel in the raster extent covered by the geometry.

    Given a MultiPolygon and a RasterExtent, call the function 'f' at each pixel in the raster extent covered by the geometry. The two arguments to the function 'f' are the column and row.

  19. def foreachCellByPoint(geom: Point, re: RasterExtent)(f: (Int, Int) ⇒ Unit): Unit

    Invoke a function on raster cells under a point feature.

    Invoke a function on raster cells under a point feature.

    The function f is a closure that should alter a mutable variable by side effect (to avoid boxing).

  20. def foreachCellByPointSeq(pSet: Seq[Point], re: RasterExtent)(f: (Int, Int) ⇒ Unit): Unit

    Invoke a function on each point in a sequences of Points.

  21. def foreachCellByPolygon(p: Polygon, re: RasterExtent, options: Options)(f: (Int, Int) ⇒ Unit): Unit

    Apply function f(col, row, feature) to every cell contained within polygon.

    Apply function f(col, row, feature) to every cell contained within polygon.

    p

    Polygon used to define zone

    re

    RasterExtent used to determine cols and rows

    options

    The options parameter controls whether to treat pixels as points or areas and whether to report partially-intersected areas.

    f

    Function to apply: f(cols, row, feature)

  22. def foreachCellByPolygon(p: Polygon, re: RasterExtent)(f: (Int, Int) ⇒ Unit): Unit

    Given a Polygon and a RasterExtent, call the function 'f' at each pixel in the raster extent covered by the geometry.

    Given a Polygon and a RasterExtent, call the function 'f' at each pixel in the raster extent covered by the geometry. The two arguments to the function 'f' are the column and row.

  23. def foreachCellInGridLine[D](x0: Int, y0: Int, x1: Int, y1: Int, p: Line, re: RasterExtent, skipLast: Boolean = false)(f: (Int, Int) ⇒ Unit): Unit

    Implementation of the Bresenham line drawing algorithm.

    Implementation of the Bresenham line drawing algorithm. Only calls on cell coordinates within raster extent.

    The parameter 'skipLast' is a flag which is 'true' if the function should skip function calling the last cell (x1, y1) and false otherwise. This is useful for not duplicating end points when calling for multiple line segments.

    p

    LineString used to define zone

    re

    RasterExtent used to determine cols and rows

    skipLast

    Boolean flag

    f

    Function to apply: f(cols, row, feature)

  24. final def getClass(): Class[_]

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  25. def hashCode(): Int

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  26. final def isInstanceOf[T0]: Boolean

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  27. final def ne(arg0: AnyRef): Boolean

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  28. final def notify(): Unit

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  29. final def notifyAll(): Unit

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  30. def rasterize(feature: Geometry, rasterExtent: RasterExtent)(f: (Int, Int) ⇒ Int): IntConstantNoDataArrayTile

    Create a raster from a geometry feature.

    Create a raster from a geometry feature.

    feature

    Feature to rasterize

    rasterExtent

    Definition of raster to create

    f

    Function that takes col, row, feature and returns value to burn

  31. def rasterizeWithValue(geom: Geometry, rasterExtent: RasterExtent, value: Int): Tile

    Create a raster from a geometry feature.

    Create a raster from a geometry feature.

    geom

    Geometry to rasterize

    rasterExtent

    Definition of raster to create

    value

    Single value to burn

  32. final def synchronized[T0](arg0: ⇒ T0): T0

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  33. def toString(): String

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  34. final def wait(): Unit

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  35. final def wait(arg0: Long, arg1: Int): Unit

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  36. final def wait(arg0: Long): Unit

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