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.
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Nested Class Summary
Nested ClassesModifier and TypeInterfaceDescriptionstatic class
An encoder/decoder ofS2LaxPolylineShape
s.static class
A multi polyline storing references to previously allocated S2Point instances.static class
A multi polyline storing xyz coordinates in a single packed 'double' array.static class
A multi polyline storing cell IDs in a single 'long' array.static class
A polyline storing references to previously allocated S2Point instances.static class
static class
A polyline storing xyz coordinates in a single packed 'double' array.static class
A polyline storing cell IDs in a single 'long' array.Nested classes/interfaces inherited from interface com.google.common.geometry.S2Shape
S2Shape.MutableEdge, S2Shape.ReferencePoint
Nested classes/interfaces inherited from interface com.google.common.geometry.S2ShapeAspect.ChainAspect
S2ShapeAspect.ChainAspect.Multi, S2ShapeAspect.ChainAspect.Simple
Nested classes/interfaces inherited from interface com.google.common.geometry.S2ShapeAspect.EdgeAspect
S2ShapeAspect.EdgeAspect.Closed, S2ShapeAspect.EdgeAspect.Open
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Field Summary
Fields -
Method Summary
Modifier and TypeMethodDescriptiondefault boolean
Returns true if this shape containsS2.origin()
.static S2LaxPolylineShape
create
(S2Polyline line) Creates a lax polyline from theline
by copying its data.static S2LaxPolylineShape
Creates a new lax polyline from the given vertices.static S2LaxPolylineShape
createMulti
(Iterable<? extends Iterable<S2Point>> lines) Creates a new lax multipolyline with the given lines.static S2LaxPolylineShape
createMultiPacked
(Iterable<? extends Iterable<S2Point>> lines) Ascreate(com.google.common.geometry.S2Polyline)
, but with coordinates packed into a double[].static S2LaxPolylineShape
createMultiSnapped
(Iterable<? extends Iterable<S2CellId>> lines) Ascreate(com.google.common.geometry.S2Polyline)
, but with vertices at the center of cell IDs, packed into a long[].static S2LaxPolylineShape
createPacked
(Iterable<S2Point> vertices) Ascreate(com.google.common.geometry.S2Polyline)
, but with coordinates packed into a double[].static S2LaxPolylineShape
createSnapped
(Iterable<S2CellId> vertices) Ascreate(com.google.common.geometry.S2Polyline)
, but with vertices at the center of cell IDs, packed into a long[].default int
Returns the dimension of the geometry represented by this shape.static <T> Iterable
<T> filterLine
(Iterable<T> input) Returns 'input' or an empty iterable if 'input' has only one vertex.filterLines
(Iterable<? extends Iterable<T>> input) default boolean
Returns true if this shape has an interior, i.e.default boolean
isEmpty()
Returns true unless there is at least one edge in this line.default boolean
isFull()
Returns false in all cases since a polyline may never cover the entire sphere.default int
numEdges()
Returns the number of edges in this shape.default Object
Canonicalize exactly empty polylines to EMPTY.Methods inherited from interface com.google.common.geometry.S2Shape
chain, chains, getChainLength, getChainStart, getReferencePoint, numChains
Methods inherited from interface com.google.common.geometry.S2ShapeAspect.ChainAspect
chainId, edgeId, getChainLength, getChainStart, numChains
Methods inherited from interface com.google.common.geometry.S2ShapeAspect.EdgeAspect.Open
adjustChains, getChainEdge, getChainVertex, getEdge, vertexId
Methods inherited from interface com.google.common.geometry.S2ShapeAspect.VertexAspect
numVertices, vertex, vertices
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Field Details
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EMPTY
A polyline with no edges.
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Method Details
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create
Creates a lax polyline from theline
by copying its data. -
create
Creates a new lax polyline from the given vertices. -
createPacked
Ascreate(com.google.common.geometry.S2Polyline)
, but with coordinates packed into a double[]. -
createSnapped
Ascreate(com.google.common.geometry.S2Polyline)
, but with vertices at the center of cell IDs, packed into a long[]. -
createMulti
Creates a new lax multipolyline with the given lines. -
createMultiPacked
Ascreate(com.google.common.geometry.S2Polyline)
, but with coordinates packed into a double[]. -
createMultiSnapped
Ascreate(com.google.common.geometry.S2Polyline)
, but with vertices at the center of cell IDs, packed into a long[]. -
filterLine
Returns 'input' or an empty iterable if 'input' has only one vertex. -
filterLines
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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 interfaceS2Shape
- Specified by:
dimension
in interfaceS2ShapeAspect.TopoAspect
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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 interfaceS2Shape
- Specified by:
hasInterior
in interfaceS2ShapeAspect.TopoAspect
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containsOrigin
default boolean containsOrigin()Description copied from interface:S2Shape
Returns true if this shape containsS2.origin()
. Should return false for shapes that do not have an interior.- Specified by:
containsOrigin
in interfaceS2Shape
- Specified by:
containsOrigin
in interfaceS2ShapeAspect.TopoAspect
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numEdges
default int numEdges()Description copied from interface:S2Shape
Returns the number of edges in this shape.- Specified by:
numEdges
in interfaceS2Shape
- Specified by:
numEdges
in interfaceS2ShapeAspect.EdgeAspect
- Specified by:
numEdges
in interfaceS2ShapeAspect.EdgeAspect.Open
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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.
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