Package io.github.sebasbaumh.postgis

Class PolygonBase<T extends Curve>

java.lang.Object
io.github.sebasbaumh.postgis.Geometry
io.github.sebasbaumh.postgis.PolygonBase<T>
Type Parameters:
T - type of the ring geometries
All Implemented Interfaces:
LineBasedGeometry, Serializable, Iterable<T>
Direct Known Subclasses:
CurvePolygon, Polygon
@NonNullByDefault public abstract class PolygonBase<T extends Curve> extends Geometry implements Iterable<T>, LineBasedGeometry
Base class for a polygon to allow similar handling of straight and circular polygons.
Author:
Sebastian Baumhekel
See Also:

  • Constructor Details

    • PolygonBase

      protected PolygonBase(int type, Class<U> clazzRing)
      Constructor for subclasses.
      Parameters:
      type - has to be given by all subclasses
      clazzRing - class of the ring

    • PolygonBase

      protected PolygonBase(int type, Class<U> clazzRing, Iterable<V> rings)
      Constructor for subclasses.
      Parameters:
      type - has to be given by all subclasses
      clazzRing - class of the ring
      rings - rings

    • PolygonBase

      protected PolygonBase(int type, U lsOuterRing)
      Constructor for subclasses.
      Parameters:
      type - has to be given by all subclasses
      lsOuterRing - outer ring

  • Method Details

    • addRing

      public void addRing(T ring)
      Adds a ring.
      Parameters:
      ring - ring

    • checkConsistency

      public boolean checkConsistency()
      Description copied from class: Geometry
      Do some internal consistency checks on the geometry. Currently, all Geometries must have a valid dimension (2 or 3) and a valid type. Composed geometries must have all equal SRID, dimensionality and measures, as well as that they do not contain NULL or inconsistent subgeometries. BinaryParser and WKTParser should only generate consistent geometries. BinaryWriter may produce invalid results on inconsistent geometries.
      Overrides:
      checkConsistency in class Geometry
      Returns:
      true if all checks are passed.

    • clearRings

      public void clearRings()
      Clears all rings.

    • equals

      public boolean equals(@Nullable Object other)
      Description copied from class: Geometry
      java.lang.Object equals implementation
      Overrides:
      equals in class Geometry
      Parameters:
      other - geometry to compare
      Returns:
      true if equal, false otherwise

    • getCoordinates

      public Iterable<Point> getCoordinates()
      Description copied from class: Geometry
      Gets the coordinates of this Geometry.
      Specified by:
      getCoordinates in class Geometry
      Returns:
      coordinates

    • getEndPoint

      @Nullable public Point getEndPoint()
      Description copied from interface: LineBasedGeometry
      Gets the end point.
      Specified by:
      getEndPoint in interface LineBasedGeometry
      Returns:
      Point on success, else null

    • getNumberOfCoordinates

      public int getNumberOfCoordinates()
      Description copied from class: Geometry
      Gets the number of coordinates of this Geometry.
      Specified by:
      getNumberOfCoordinates in class Geometry
      Returns:
      number of coordinates

    • getNumberOfRings

      public int getNumberOfRings()
      Gets the number of rings.
      Returns:
      number of rings.

    • getOuterRing

      public T getOuterRing()
      Gets the outer ring/boundary of the polygon.
      Returns:
      outer ring

    • getRings

      public Iterable<T> getRings()
      Gets all inner rings.
      Returns:
      inner rings

    • getStartPoint

      @Nullable public Point getStartPoint()
      Description copied from interface: LineBasedGeometry
      Gets the start point.
      Specified by:
      getStartPoint in interface LineBasedGeometry
      Returns:
      Point on success, else null

    • hashCode

      public int hashCode()
      Overrides:
      hashCode in class Geometry

    • hasMeasure

      public boolean hasMeasure()
      Description copied from class: Geometry
      Returns whether we have a measure (4th dimension)
      Specified by:
      hasMeasure in class Geometry
      Returns:
      true if the geometry has a measure, false otherwise

    • is3d

      public boolean is3d()
      Description copied from class: Geometry
      Checks if this Geometry is 3d.
      Specified by:
      is3d in class Geometry
      Returns:
      true on success, else false

    • isClockwise

      public boolean isClockwise()
      Checks if this polygon is oriented in clockwise direction. Is false for the outer polygon and true for its holes.
      Returns:
      true on success, else false

    • isClosed

      public boolean isClosed()
      Description copied from interface: LineBasedGeometry
      Checks if this line is closed, so the last coordinate is the same as the first coordinate.
      Specified by:
      isClosed in interface LineBasedGeometry
      Returns:
      true on success, else false

    • isEmpty

      public boolean isEmpty()
      Description copied from class: Geometry
      Ist this Geometry empty, so does it contain no coordinates or other geometries?
      Specified by:
      isEmpty in class Geometry
      Returns:
      true on success, else false

    • iterator

      public Iterator<T> iterator()
      Specified by:
      iterator in interface Iterable<T extends Curve>

    • length

      public double length()
      Description copied from interface: LineBasedGeometry
      Gets the length of this line.
      Specified by:
      length in interface LineBasedGeometry
      Returns:
      length

    • setOuterRing

      public void setOuterRing(T ls)
      Sets the outer ring/boundary of the polygon.
      Parameters:
      ls - outer ring

    • toString

      public String toString()
      Overrides:
      toString in class Object