Package org.apache.sedona.common.S2Geography

Class PointGeography

java.lang.Object
org.apache.sedona.common.S2Geography.Geography
org.apache.sedona.common.S2Geography.PointGeography
Direct Known Subclasses:
SinglePointGeography
public class PointGeography extends Geography

  • Field Details

    • points

      public final List<com.google.common.geometry.S2Point> points

  • Constructor Details

    • PointGeography

      public PointGeography()
      Constructs an empty PointGeography.

    • PointGeography

      public PointGeography(com.google.common.geometry.S2Point point)
      Constructs a single-point geography.

    • PointGeography

      public PointGeography(List<com.google.common.geometry.S2Point> pts)
      Constructs from a list of points.

  • Method Details

    • dimension

      public int dimension()
      Specified by:
      dimension in class Geography
      Returns:
      0, 1, or 2 if all Shape()s that are returned will have the same dimension (i.e., they are all points, all lines, or all polygons).

    • numShapes

      public int numShapes()
      Specified by:
      numShapes in class Geography
      Returns:
      The number of S2Shape objects needed to represent this Geography

    • shape

      public com.google.common.geometry.S2Shape shape(int id)
      Description copied from class: Geography
      Returns the given S2Shape (where 0 <= id < num_shapes()). The caller retains ownership of the S2Shape but the data pointed to by the object requires that the underlying Geography outlives the returned object.
      Specified by:
      shape in class Geography
      Parameters:
      id - (where 0 <= id < num_shapes())
      Returns:
      the given S2Shape

    • region

      public com.google.common.geometry.S2Region region()
      Description copied from class: Geography
      Returns an S2Region that represents the object. The caller retains ownership of the S2Region but the data pointed to by the object requires that the underlying Geography outlives the returned object.
      Specified by:
      region in class Geography
      Returns:
      S2Region

    • getCellUnionBound

      public void getCellUnionBound(List<com.google.common.geometry.S2CellId> cellIds)
      Description copied from class: Geography
      Adds an unnormalized set of S2CellIDs to `cell_ids`. This is intended to be faster than using Region().GetCovering() directly and to return a small number of cells that can be used to compute a possible intersection quickly.
      Overrides:
      getCellUnionBound in class Geography

    • getPoints

      public List<com.google.common.geometry.S2Point> getPoints()
      Returns an immutable view of the points.

    • encodeTagged

      public void encodeTagged(OutputStream os, EncodeOptions opts) throws IOException
      Description copied from class: Geography
      Serialize this geography to an encoder. This does not include any encapsulating information (e.g., which geography type or flags). Encode this geography into a stream as: 1) a 5-byte EncodeTag header (see EncodeTag encode / decode) 2) coveringSize × 8-byte cell-ids 3) the raw shape payload (point/polyline/polygon) via the built-in coder
      Overrides:
      encodeTagged in class Geography
      opts - CodingHint.FAST / CodingHint.COMPACT / Include or omit the cell‐union covering prefix
      Throws:
      IOException

    • encode

      public void encode(com.esotericsoftware.kryo.io.UnsafeOutput out, EncodeOptions opts) throws IOException
      Specified by:
      encode in class Geography
      Throws:
      IOException

    • decode

      public static PointGeography decode(com.esotericsoftware.kryo.io.Input in, EncodeTag tag) throws IOException
      This is what decodeTagged() actually calls
      Throws:
      IOException

    • decode

      public static PointGeography decode(com.esotericsoftware.kryo.io.UnsafeInput in, EncodeTag tag) throws IOException
      Throws:
      IOException

    • getCoordinateSequence

      public org.locationtech.jts.geom.CoordinateSequence getCoordinateSequence()