org.tinfour.common

Class NearestEdgeResult

java.lang.Object

org.tinfour.common.NearestEdgeResult

public class NearestEdgeResult
extends Object

Provides a minimal set of data elements for the result of a nearest-edge location operation.

Constructor Summary

Constructors

Constructor and Description
NearestEdgeResult(IQuadEdge edge, double edgeD, double queryX, double queryY, boolean interior) Standard constructor.

Method Summary

Modifier and Type	Method and Description
double	getDistanceToEdge() Gets the distance from the query point to the nearest edge.
double	getDistanceToNearestVertex() Gets the distance from the query point to the nearest vertex.
IQuadEdge	getEdge() Gets the edge that is nearest to the query point.
Vertex	getNearestVertex() Gets the vertex nearest the query point.
double	getX() Get the X coordinate of the query point
double	getY() Get the Y coordinate of the query point
boolean	isInterior() Indicates whether the query point was inside the convex polygon boundary of the TIN.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

NearestEdgeResult

public NearestEdgeResult(IQuadEdge edge,
                         double edgeD,
                         double queryX,
                         double queryY,
                         boolean interior)

Standard constructor.

Parameters:

edge - the edge that starts with the vertex nearest (x,y)

edgeD - the distance of the query point to the edge

queryX - the X coordinate for the query point

queryY - the Y coordinate for the query point

interior - indicates that the query point is inside the TIN boundary,

Method Detail

getEdge

public IQuadEdge getEdge()

Gets the edge that is nearest to the query point. The nearest point on that edge may be either of the endpoints of the edge or some point in between. The nearest vertex may not necessarily lie on the edge.

If the query point is in the interior of the TIN, it will lie either on the edge or inside the triangle to the left of the edge.

Returns:

a valid edge.

getDistanceToEdge

public double getDistanceToEdge()

Gets the distance from the query point to the nearest edge. This distance is measured in a perpendicular direction from the edge.

Returns:

a positive, potentially zero, floating point value.

getNearestVertex

public Vertex getNearestVertex()

Gets the vertex nearest the query point.

Returns:

A valid vertex (never null).

getDistanceToNearestVertex

public double getDistanceToNearestVertex()

Gets the distance from the query point to the nearest vertex.

Returns:

a positive floating point value, potentially zero.

getX

public double getX()

Get the X coordinate of the query point

Returns:

a valid coordinate

getY

public double getY()

Get the Y coordinate of the query point

Returns:

a valid coordinate

isInterior

public boolean isInterior()

Indicates whether the query point was inside the convex polygon boundary of the TIN.

Returns:

true if the query point was inside the TIN; false otherwise