com.vividsolutions.jts.operation.distance

Class GeometryLocation


  • public class GeometryLocation
extends Object
    Represents the location of a point on a Geometry. Maintains both the actual point location (which may not be exact, if the point is not a vertex) 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.

    • Field Detail

      • INSIDE_AREA

        public static final int INSIDE_AREA
        A special value of segmentIndex used for locations inside area geometries. These locations are not located on a segment, and thus do not have an associated segment index.
        See Also:
        Constant Field Values

    • Constructor Detail

      • 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).
        Parameters:
        component - the component of the geometry containing the point
        segIndex - the segment index of the location, or INSIDE_AREA
        the - coordinate of the location

      • GeometryLocation

        public GeometryLocation(Geometry component,
                        Coordinate pt)
        Constructs a GeometryLocation specifying a point inside an area geometry.
        Parameters:
        component - the component of the geometry containing the point
        the - coordinate of the location

    • Method Detail

      • getGeometryComponent

        public Geometry getGeometryComponent()
        Returns the geometry component on (or in) which this location occurs.

      • 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()
        Tests whether this location represents a point inside an area geometry.