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geotrellis.vector

RobustPredicates

object RobustPredicates

Provides a set of numerically-sound geometric predicates.

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  1. final def !=(arg0: Any): Boolean
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  2. final def ##(): Int
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  3. final def ==(arg0: Any): Boolean
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  4. final val LEFTOF: Int(-1)
  5. final val ON: Int(0)
  6. final val RIGHTOF: Int(1)
  7. final def asInstanceOf[T0]: T0
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  8. def circleCenter(ax: Double, ay: Double, bx: Double, by: Double, cx: Double, cy: Double): (Double, Coordinate, Boolean)

    Given three points in 2d, represented as the Double pairs (ax, ay), (bx, by), and (cx, cy), this function finds the center of the unique circle that contains the three points on its boundary.

    Given three points in 2d, represented as the Double pairs (ax, ay), (bx, by), and (cx, cy), this function finds the center of the unique circle that contains the three points on its boundary. The return of this function is a triple containing the radius of the circle, the center of the circle, represented as a jts Coordinate, and a Boolean flag indicating if the radius and center are numerically reliable. This last value will be false if the points are too close to being collinear.

  9. def clone(): AnyRef
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    protected[lang]
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    @throws( ... ) @native()
  10. def det2(a11: Double, a12: Double, a21: Double, a22: Double): Double
  11. def det3(a11: Double, a12: Double, a13: Double, a21: Double, a22: Double, a23: Double, a31: Double, a32: Double, a33: Double): Double
  12. final def eq(arg0: AnyRef): Boolean
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  13. def equals(arg0: Any): Boolean
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  14. def finalize(): Unit
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    protected[lang]
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    @throws( classOf[java.lang.Throwable] )
  15. final def getClass(): Class[_]
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    @native()
  16. def hashCode(): Int
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    @native()
  17. def inCircle(a: Coordinate, b: Coordinate, c: Coordinate, d: Coordinate): Boolean

    Given four points in 2d, represented as jts Coordinates, this function determines if the unique circle having points a, b, and c on its boundary (isCCW(a, b, c) must be true) contains point d in its interior.

    Given four points in 2d, represented as jts Coordinates, this function determines if the unique circle having points a, b, and c on its boundary (isCCW(a, b, c) must be true) contains point d in its interior. The z-coordinates of the input points are ignored.

  18. def inCircle(ax: Double, ay: Double, bx: Double, by: Double, cx: Double, cy: Double, dx: Double, dy: Double): Boolean
  19. def isCCW(a: Coordinate, b: Coordinate, c: Coordinate): Boolean

    Given three points in 2d, represented as jts Coordinates, this function returns true if the three points, visted in the order a, b, and then c, have a counterclockwise winding.

    Given three points in 2d, represented as jts Coordinates, this function returns true if the three points, visted in the order a, b, and then c, have a counterclockwise winding. This function returns false if the winding of the points is clockwise, or if the points are collinear. The z-coordinates of the input points are ignored.

  20. def isCCW(ax: Double, ay: Double, bx: Double, by: Double, cx: Double, cy: Double): Boolean

    Given three points in 2d, represented as the Double pairs (ax, ay), (bx, by), and (cx, cy), this function returns true if the three points, in the order a, b, and then c, have a counterclockwise winding.

    Given three points in 2d, represented as the Double pairs (ax, ay), (bx, by), and (cx, cy), this function returns true if the three points, in the order a, b, and then c, have a counterclockwise winding. This function returns false if the winding of the points is clockwise, or if the points are collinear.

  21. def isCollinear(a: Coordinate, b: Coordinate, c: Coordinate): Boolean

    Given three points in 2d, represented as jts Coordinates, this function returns true if all three points lie on a single line, up to the limits of numerical precision.

    Given three points in 2d, represented as jts Coordinates, this function returns true if all three points lie on a single line, up to the limits of numerical precision. The z-coordinates of the input points are ignored.

  22. def isCollinear(ax: Double, ay: Double, bx: Double, by: Double, cx: Double, cy: Double): Boolean

    Given three points in 2d, represented as the Double pairs (ax, ay), (bx, by), and (cx, cy), this function returns true if all three points lie on a single line, up to the limits of numerical precision.

  23. final def isInstanceOf[T0]: Boolean
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  24. final def ne(arg0: AnyRef): Boolean
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  25. final def notify(): Unit
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    @native()
  26. final def notifyAll(): Unit
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    @native()
  27. def relativeTo(e0: Coordinate, e1: Coordinate, p: Coordinate): Int
  28. def relativeTo(e0x: Double, e0y: Double, e1x: Double, e1y: Double, px: Double, py: Double): Int

    Given four points in 2d, represented as the Double pairs (ax, ay), (bx, by), (cx, cy), and (dx, dy), this function determines if the unique circle having points a, b, and c on its boundary (isCCW(a, b, c) must be true) contains point d in its interior.

  29. final def synchronized[T0](arg0: ⇒ T0): T0
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  30. def toString(): String
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  31. final def wait(): Unit
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    @throws( ... )
  32. final def wait(arg0: Long, arg1: Int): Unit
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    @throws( ... )
  33. final def wait(arg0: Long): Unit
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