Packages

object SimplePointInAreaLocator

Computes the location of points relative to a {link Polygonal} {link Geometry}, using a simple O(n) algorithm.

The algorithm used reports if a point lies in the interior, exterior, or exactly on the boundary of the Geometry.

Instance methods are provided to implement the interface {link PointInAreaLocator}. However, they provide no performance advantage over the class methods.

This algorithm is suitable for use in cases where only a few points will be tested. If many points will be tested, {link IndexedPointInAreaLocator} may provide better performance.

Version

1.7

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  1. final def !=(arg0: Any): Boolean
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  6. def containsPointInPolygon(p: Coordinate, poly: Polygon): Boolean

    Determines whether a point lies in a {link Polygon}.

    Determines whether a point lies in a {link Polygon}. If the point lies on the polygon boundary it is considered to be inside.

    p

    the point to test

    poly

    the geometry to test return true if the point lies in or on the polygon

  7. final def eq(arg0: AnyRef): Boolean
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  12. def isContained(p: Coordinate, geom: Geometry): Boolean

    Determines whether a point is contained in a {link Geometry}, or lies on its boundary.

    Determines whether a point is contained in a {link Geometry}, or lies on its boundary. This is a convenience method for 

     Location.EXTERIOR != locate(p, geom)

    p

    the point to test

    geom

    the geometry to test return true if the point lies in or on the geometry

  13. final def isInstanceOf[T0]: Boolean
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  14. def locate(p: Coordinate, geom: Geometry): Int

    Determines the {link Location} of a point in an areal {link Geometry}.

    Determines the {link Location} of a point in an areal {link Geometry}. The return value is one of:

    • {link Location.INTERIOR} if the point is in the geometry interior
    • {link Location.BOUNDARY} if the point lies exactly on the boundary
    • {link Location.EXTERIOR} if the point is outside the geometry
    p

    the point to test

    geom

    the areal geometry to test return the Location of the point in the geometry

  15. def locatePointInPolygon(p: Coordinate, poly: Polygon): Int

    Determines the {link Location} of a point in a {link Polygon}.

    Determines the {link Location} of a point in a {link Polygon}. The return value is one of:

    • {link Location.INTERIOR} if the point is in the geometry interior
    • {link Location.BOUNDARY} if the point lies exactly on the boundary
    • {link Location.EXTERIOR} if the point is outside the geometry

    This method is provided for backwards compatibility only. Use {link #locate(Coordinate, Geometry)} instead.

    p

    the point to test

    poly

    the geometry to test return the Location of the point in the polygon

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