org.apache.lucene.spatial3d.geom

Interface GeoShape

All Superinterfaces:

Membership

All Known Subinterfaces:

GeoBBox, GeoCircle, GeoDistanceShape, GeoMembershipShape, GeoPath, GeoPolygon

All Known Implementing Classes:

GeoBaseDistanceShape, GeoBaseMembershipShape, GeoBaseShape, GeoCompositeMembershipShape, GeoCompositePolygon, GeoDegenerateVerticalLine

public interface GeoShape
extends Membership

Generic shape. This describes methods that help GeoAreas figure out how they interact with a shape, for the purposes of coming up with a set of geo hash values.

WARNING: This API is experimental and might change in incompatible ways in the next release.

Method Summary

Modifier and Type	Method and Description
void	getBounds(Bounds bounds) Compute bounds for the shape.
GeoPoint[]	getEdgePoints() Return a sample point that is on the outside edge/boundary of the shape.
boolean	intersects(Plane plane, GeoPoint[] notablePoints, Membership... bounds) Assess whether a plane, within the provided bounds, intersects with the shape.

Methods inherited from interface org.apache.lucene.spatial3d.geom.Membership

isWithin, isWithin

Method Detail

getEdgePoints

GeoPoint[] getEdgePoints()

Return a sample point that is on the outside edge/boundary of the shape.

Returns:

samples of all edge points from distinct edge sections. Typically one point is returned, but zero or two are also possible.

intersects

boolean intersects(Plane plane,
                   GeoPoint[] notablePoints,
                   Membership... bounds)

Assess whether a plane, within the provided bounds, intersects with the shape. Note well that this method is allowed to return "true" if there are internal edges of a composite shape which intersect the plane. Doing this can cause getRelationship() for most GeoBBox shapes to return OVERLAPS rather than the more correct CONTAINS, but that cannot be helped for some complex shapes that are built out of overlapping parts.

Parameters:

plane - is the plane to assess for intersection with the shape's edges or bounding curves.

notablePoints - represents the intersections of the plane with the supplied bounds. These are used to disambiguate when two planes are identical and it needs to be determined whether any points exist that fulfill all the bounds.

bounds - are a set of bounds that define an area that an intersection must be within in order to qualify (provided by a GeoArea).

Returns:

true if there's such an intersection, false if not.

getBounds

void getBounds(Bounds bounds)

Compute bounds for the shape.

Parameters:

bounds - is the input bounds object. The input object will be modified.