geoindex

type Config struct {
	S2Geography *S2GeographyConfig `protobuf:"bytes,1,opt,name=s2_geography,json=s2Geography,proto3" json:"s2_geography,omitempty"`
	S2Geometry  *S2GeometryConfig  `protobuf:"bytes,2,opt,name=s2_geometry,json=s2Geometry,proto3" json:"s2_geometry,omitempty"`
}

type GeographyIndex interface {
	// InvertedIndexKeys returns the keys to store this object under when adding
	// it to the index.
	InvertedIndexKeys(c context.Context, g *geo.Geography) ([]Key, error)

	// Covers returns the index spans to read and union for the relationship
	// ST_Covers(g, x), where x are the indexed geometries.
	Covers(c context.Context, g *geo.Geography) (UnionKeySpans, error)

	// CoveredBy returns the index entries to read and the expression to compute
	// for ST_CoveredBy(g, x), where x are the indexed geometries.
	CoveredBy(c context.Context, g *geo.Geography) (RPKeyExpr, error)

	// Intersects returns the index spans to read and union for the relationship
	// ST_Intersects(g, x), where x are the indexed geometries.
	Intersects(c context.Context, g *geo.Geography) (UnionKeySpans, error)

	// DWithin returns the index spans to read and union for the relationship
	// ST_DWithin(g, x, distanceMeters). That is, there exists a part of
	// geometry g that is within distanceMeters of x, where x is an indexed
	// geometry. This function assumes a sphere.
	DWithin(
		c context.Context, g *geo.Geography, distanceMeters float64,
		useSphereOrSpheroid geogfn.UseSphereOrSpheroid,
	) (UnionKeySpans, error)

	// TestingInnerCovering returns an inner covering of g.
	TestingInnerCovering(g *geo.Geography) s2.CellUnion
}

type GeometryIndex interface {
	// InvertedIndexKeys returns the keys to store this object under when adding
	// it to the index.
	InvertedIndexKeys(c context.Context, g *geo.Geometry) ([]Key, error)

	// Covers returns the index spans to read and union for the relationship
	// ST_Covers(g, x), where x are the indexed geometries.
	Covers(c context.Context, g *geo.Geometry) (UnionKeySpans, error)

	// CoveredBy returns the index entries to read and the expression to compute
	// for ST_CoveredBy(g, x), where x are the indexed geometries.
	CoveredBy(c context.Context, g *geo.Geometry) (RPKeyExpr, error)

	// Intersects returns the index spans to read and union for the relationship
	// ST_Intersects(g, x), where x are the indexed geometries.
	Intersects(c context.Context, g *geo.Geometry) (UnionKeySpans, error)

	// DWithin returns the index spans to read and union for the relationship
	// ST_DWithin(g, x, distance). That is, there exists a part of geometry g
	// that is within distance units of x, where x is an indexed geometry.
	DWithin(c context.Context, g *geo.Geometry, distance float64) (UnionKeySpans, error)

	// DFullyWithin returns the index spans to read and union for the
	// relationship ST_DFullyWithin(g, x, distance). That is, the maximum distance
	// across every pair of points comprising geometries g and x is within distance
	// units, where x is an indexed geometry.
	DFullyWithin(c context.Context, g *geo.Geometry, distance float64) (UnionKeySpans, error)

	// TestingInnerCovering returns an inner covering of g.
	TestingInnerCovering(g *geo.Geometry) s2.CellUnion
}

type Key uint64

type KeySpan struct {
	// Both Start and End are inclusive, i.e., [Start, End].
	Start, End Key
}

type RPExprElement interface {
	// contains filtered or unexported methods
}

type RPKeyExpr []RPExprElement

type RPSetOperator int

type RelationshipType uint8

type S2Config struct {
	// MinLevel is the minimum cell level stored in the index. If left unset, it
	// defaults to 0.
	MinLevel int32 `protobuf:"varint,1,opt,name=min_level,json=minLevel,proto3" json:"min_level,omitempty"`
	// MaxLevel is the maximum cell level stored in the index. If left unset, it
	// defaults to 30.
	MaxLevel int32 `protobuf:"varint,2,opt,name=max_level,json=maxLevel,proto3" json:"max_level,omitempty"`
	// `MaxLevel-MinLevel` must be an exact multiple of LevelMod. If left unset,
	// it defaults to 1.
	LevelMod int32 `protobuf:"varint,3,opt,name=level_mod,json=levelMod,proto3" json:"level_mod,omitempty"`
	// MaxCells is a soft hint for the maximum number of entries used to store a
	// single geospatial object. If left unset, it defaults to 4.
	MaxCells int32 `protobuf:"varint,4,opt,name=max_cells,json=maxCells,proto3" json:"max_cells,omitempty"`
}

type S2GeographyConfig struct {
	S2Config *S2Config `protobuf:"bytes,1,opt,name=s2_config,json=s2Config,proto3" json:"s2_config,omitempty"`
}

type S2GeometryConfig struct {
	// The rectangle bounds of the plane that will be efficiently indexed. Shapes
	// should rarely exceed these bounds.
	MinX     float64   `protobuf:"fixed64,1,opt,name=min_x,json=minX,proto3" json:"min_x,omitempty"`
	MaxX     float64   `protobuf:"fixed64,2,opt,name=max_x,json=maxX,proto3" json:"max_x,omitempty"`
	MinY     float64   `protobuf:"fixed64,3,opt,name=min_y,json=minY,proto3" json:"min_y,omitempty"`
	MaxY     float64   `protobuf:"fixed64,4,opt,name=max_y,json=maxY,proto3" json:"max_y,omitempty"`
	S2Config *S2Config `protobuf:"bytes,5,opt,name=s2_config,json=s2Config,proto3" json:"s2_config,omitempty"`
}

type UnionKeySpans []KeySpan