com.vividsolutions.jts.operation.distance

Class GeometryLocation


public class GeometryLocation
extends java.lang.Object

Represents the location of a point on a Geometry. Maintains both the actual point location (which of course may not be exact) as well as information about the component and segment index where the point occurs. Locations inside area Geometrys will not have an associated segment index, so in this case the segment index will have the sentinel value of INSIDE_AREA.
Version:
1.7

Field Summary

static int
INSIDE_AREA
Special value of segment-index for locations inside area geometries.

Constructor Summary

GeometryLocation(Geometry component, Coordinate pt)
Constructs a GeometryLocation specifying a point inside an area geometry.
GeometryLocation(Geometry component, int segIndex, Coordinate pt)
Constructs a GeometryLocation specifying a point on a geometry, as well as the segment that the point is on (or INSIDE_AREA if the point is not on a segment).

Method Summary

Coordinate
getCoordinate()
Returns the location.
Geometry
getGeometryComponent()
Returns the geometry associated with this location.
int
getSegmentIndex()
Returns the segment index for this location.
boolean
isInsideArea()
Returns whether this GeometryLocation represents a point inside an area geometry.

Field Details

INSIDE_AREA

public static final int INSIDE_AREA
Special value of segment-index for locations inside area geometries. These locations do not have an associated segment index.
Field Value:
-1

Constructor Details

GeometryLocation

public GeometryLocation(Geometry component,
                        Coordinate pt)
Constructs a GeometryLocation specifying a point inside an area geometry.

GeometryLocation

public GeometryLocation(Geometry component,
                        int segIndex,
                        Coordinate pt)
Constructs a GeometryLocation specifying a point on a geometry, as well as the segment that the point is on (or INSIDE_AREA if the point is not on a segment).

Method Details

getCoordinate

public Coordinate getCoordinate()
Returns the location.

getGeometryComponent

public Geometry getGeometryComponent()
Returns the geometry associated with this location.

getSegmentIndex

public int getSegmentIndex()
Returns the segment index for this location. If the location is inside an area, the index will have the value INSIDE_AREA;
Returns:
the segment index for the location, or INSIDE_AREA

isInsideArea

public boolean isInsideArea()
Returns whether this GeometryLocation represents a point inside an area geometry.