Package com.google.common.geometry

Interface S2LaxPolylineShape

All Superinterfaces:
S2Shape, S2ShapeAspect.ChainAspect, S2ShapeAspect.EdgeAspect, S2ShapeAspect.EdgeAspect.Open, S2ShapeAspect.Mixed, S2ShapeAspect.TopoAspect, S2ShapeAspect.VertexAspect
All Known Implementing Classes:
S2LaxPolylineShape.MultiArray, S2LaxPolylineShape.MultiPacked, S2LaxPolylineShape.MultiSnapped, S2LaxPolylineShape.SimpleArray, S2LaxPolylineShape.SimpleList, S2LaxPolylineShape.SimplePacked, S2LaxPolylineShape.SimpleSnapped
@GwtIncompatible("S2ShapeAspect incompatible") public interface S2LaxPolylineShape extends S2ShapeAspect.EdgeAspect.Open
S2LaxPolylineShape represents a polyline. It is similar to S2Polyline except that duplicate vertices are allowed, and the representation is slightly more compact since this class does not implement S2Region.

Polylines may have any number of vertices, but note that polylines with fewer than 2 vertices do not define any edges. To create a polyline consisting of a single degenerate edge, repeat the same vertex twice.

  • Field Details

  • Method Details

    • create

      static S2LaxPolylineShape create(S2Polyline line)
      Creates a lax polyline from the line by copying its data.

    • create

      static S2LaxPolylineShape create(Iterable<S2Point> vertices)
      Creates a new lax polyline from the given vertices.

    • createPacked

      static S2LaxPolylineShape createPacked(Iterable<S2Point> vertices)
      As create(com.google.common.geometry.S2Polyline), but with coordinates packed into a double[].

    • createSnapped

      static S2LaxPolylineShape createSnapped(Iterable<S2CellId> vertices)
      As create(com.google.common.geometry.S2Polyline), but with vertices at the center of cell IDs, packed into a long[].

    • createMulti

      static S2LaxPolylineShape createMulti(Iterable<? extends Iterable<S2Point>> lines)
      Creates a new lax multipolyline with the given lines.

    • createMultiPacked

      static S2LaxPolylineShape createMultiPacked(Iterable<? extends Iterable<S2Point>> lines)
      As create(com.google.common.geometry.S2Polyline), but with coordinates packed into a double[].

    • createMultiSnapped

      static S2LaxPolylineShape createMultiSnapped(Iterable<? extends Iterable<S2CellId>> lines)
      As create(com.google.common.geometry.S2Polyline), but with vertices at the center of cell IDs, packed into a long[].

    • filterLine

      static <T> Iterable<T> filterLine(Iterable<T> input)
      Returns 'input' or an empty iterable if 'input' has only one vertex.

    • filterLines

      static <T> Iterable<? extends Iterable<T>> filterLines(Iterable<? extends Iterable<T>> input)

    • readResolve

      default Object readResolve()
      Canonicalize exactly empty polylines to EMPTY.

    • dimension

      default int dimension()
      Description copied from interface: S2Shape
      Returns the dimension of the geometry represented by this shape.
      • 0 - Point geometry. Each point is represented as a degenerate edge.
      • 1 - Polyline geometry. Polyline edges may be degenerate. A shape may represent any number of polylines. Polylines edges may intersect.
      • 2 - Polygon geometry. Edges should be oriented such that the polygon interior is always on the left. In theory the edges may be returned in any order, but typically the edges are organized as a collection of edge chains where each chain represents one polygon loop. Polygons may have degeneracies, e.g., degenerate edges or sibling pairs consisting of an edge and its corresponding reversed edge. A polygon loop may also be full (containing all points on the sphere); by convention this is represented as a chain with no edges.

      Note that this method allows degenerate geometry of different dimensions to be distinguished, e.g., it allows a point to be distinguished from a polyline or polygon that has been simplified to a single point.

      Specified by:
      dimension in interface S2Shape
      Specified by:
      dimension in interface S2ShapeAspect.TopoAspect

    • hasInterior

      default boolean hasInterior()
      Description copied from interface: S2Shape
      Returns true if this shape has an interior, i.e. the shape consists of one or more closed non-intersecting loops.
      Specified by:
      hasInterior in interface S2Shape
      Specified by:
      hasInterior in interface S2ShapeAspect.TopoAspect

    • containsOrigin

      default boolean containsOrigin()
      Description copied from interface: S2Shape
      Returns true if this shape contains S2.origin(). Should return false for shapes that do not have an interior.
      Specified by:
      containsOrigin in interface S2Shape
      Specified by:
      containsOrigin in interface S2ShapeAspect.TopoAspect

    • numEdges

      default int numEdges()
      Description copied from interface: S2Shape
      Returns the number of edges in this shape.
      Specified by:
      numEdges in interface S2Shape
      Specified by:
      numEdges in interface S2ShapeAspect.EdgeAspect
      Specified by:
      numEdges in interface S2ShapeAspect.EdgeAspect.Open

    • isEmpty

      default boolean isEmpty()
      Returns true unless there is at least one edge in this line.

    • isFull

      default boolean isFull()
      Returns false in all cases since a polyline may never cover the entire sphere.