com.revolsys.gis.jts

Class LineStringUtil

java.lang.Object

com.revolsys.gis.jts.LineStringUtil

public final class LineStringUtil
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
static String	COORDINATE_DISTANCE
static String	COORDINATE_INDEX
static String	SEGMENT_DISTANCE
static String	SEGMENT_INDEX

Constructor Summary

Constructors

Constructor and Description
LineStringUtil()

Method Summary

Methods

Modifier and Type	Method and Description
static LineString	addElevation(LineString original, LineString update)
static void	addLineString(GeometryFactory geometryFactory, LineString points, Point startPoint, int startIndex, int endIndex, Point endPoint, List<LineString> lines)
static double	distance(double aX1, double aY1, double aX2, double aY2, double bX1, double bY1, double bX2, double bY2)
static double	distance(double x, double y, Geometry geometry, double tolerance)
static double	distance(double x, double y, LineString line, double tolerance)
static double	distance(LineString line1, LineString line2, double terminateDistance)
static double	distance(Point point, Geometry geometry, double tolerance)
static double	distance(Point point, LineString line)
static double	distance(Point point, LineString line, double tolerance)
static double	distance(Point point, LineString line, int index, double maxDistance)
static double	distanceFromStart(LineString line, Point point)
static boolean	equalsIgnoreDirection(LineString line1, LineString line2, int dimension) Compare the coordinates of the two lines up to the given dimension to see if they have the same ordinate values in either the forward or reverse direction.
static boolean	equalsIgnoreDirection2d(LineString line1, LineString line2) Compare the 2D coordinates of the two lines to see if they have the same ordinate values in either the forward or reverse direction.
static Map<GeometryComponent,Double>	findClosestGeometryComponent(LineString line, Point point)
static Map<String,Number>	findClosestSegmentAndCoordinate(LineString line, Point point)
static Point	getClosestCoordinateOnLineString(GeometryFactory precisionModel, LineString line, Point point, double tolerance)
static Point	getClosestEndsCoordinates(LineString line, Point coordinates)
static Point	getCrossingIntersection(LineString line1, LineString line2) Get the coordinate where two lines cross, or null if they don't cross.
static double	getElevation(Point point, Point point1, Point point2)
static Point	getEndPoint(LineString line, boolean fromPoint)
static Collection<LineString>	getMergedLines(MultiLineString multiLineString)
static LineString	getMergeLine(MultiLineString multiLineString)
static boolean	hasEndPoint(LineString line, Point point)
static boolean	hasEqualExact2d(List<LineString> lines, LineString newLine)
static boolean	hasLoop(Collection<LineString> lines)
static boolean	intersects(LineString line1, LineString line2)
static boolean	isEndsWithinDistance(LineString line1, LineString line2, double maxDistance)
static boolean	isEndsWithinDistance(LineString line, Point point, double maxDistance)
static boolean	isEndsWithinDistanceOfEnds(LineString line1, LineString line2, double maxDistance)
static boolean	isPointOnLine(LineString line, Point point) Check to see if the point is on any of the segments of the line.
static boolean	isPointOnLine(LineString line, Point point, double maxDistance) Check to see if the point is on any of the segments of the line.
static boolean	isWithinDistance(Point point, LineString line, int index, double maxDistance)
static boolean	isWithinDistanceOfEnds(Point point, LineString line, double maxDistance)
static LineString	merge(List<LineString> lines)
static Point	midPoint(LineString line)
static List<LineString>	split(GeometryFactory geometryFactory, LineString line, LineSegmentIndex index, double tolerance)
static List<LineString>	split(LineString line, int segmentIndex, Point point)

Methods inherited from class java.lang.Object

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

Field Detail

COORDINATE_DISTANCE

public static final String COORDINATE_DISTANCE

See Also:

Constant Field Values

COORDINATE_INDEX

public static final String COORDINATE_INDEX

See Also:

Constant Field Values

SEGMENT_DISTANCE

public static final String SEGMENT_DISTANCE

See Also:

Constant Field Values

SEGMENT_INDEX

public static final String SEGMENT_INDEX

See Also:

Constant Field Values

Constructor Detail

LineStringUtil

public LineStringUtil()

Method Detail

addElevation

public static LineString addElevation(LineString original,
                      LineString update)

addLineString

public static void addLineString(GeometryFactory geometryFactory,
                 LineString points,
                 Point startPoint,
                 int startIndex,
                 int endIndex,
                 Point endPoint,
                 List<LineString> lines)

distance

public static double distance(double aX1,
              double aY1,
              double aX2,
              double aY2,
              double bX1,
              double bY1,
              double bX2,
              double bY2)

distance

public static double distance(double x,
              double y,
              Geometry geometry,
              double tolerance)

distance

public static double distance(double x,
              double y,
              LineString line,
              double tolerance)

distance

public static double distance(LineString line1,
              LineString line2,
              double terminateDistance)

distance

public static double distance(Point point,
              Geometry geometry,
              double tolerance)

distance

public static double distance(Point point,
              LineString line)

distance

public static double distance(Point point,
              LineString line,
              double tolerance)

distance

public static double distance(Point point,
              LineString line,
              int index,
              double maxDistance)

distanceFromStart

public static double distanceFromStart(LineString line,
                       Point point)

equalsIgnoreDirection

public static boolean equalsIgnoreDirection(LineString line1,
                            LineString line2,
                            int dimension)

Compare the coordinates of the two lines up to the given dimension to see if they have the same ordinate values in either the forward or reverse direction.

Parameters:

line1 - The first line.

line2 - The second line.

dimension - The dimension.

Returns:

True if the coordinates match.

equalsIgnoreDirection2d

public static boolean equalsIgnoreDirection2d(LineString line1,
                              LineString line2)

Compare the 2D coordinates of the two lines to see if they have the same ordinate values in either the forward or reverse direction.

Parameters:

line1 - The first line.

line2 - The second line.

Returns:

True if the coordinates match.

findClosestGeometryComponent

public static Map<GeometryComponent,Double> findClosestGeometryComponent(LineString line,
                                                         Point point)

findClosestSegmentAndCoordinate

public static Map<String,Number> findClosestSegmentAndCoordinate(LineString line,
                                                 Point point)

getClosestCoordinateOnLineString

public static Point getClosestCoordinateOnLineString(GeometryFactory precisionModel,
                                     LineString line,
                                     Point point,
                                     double tolerance)

getClosestEndsCoordinates

public static Point getClosestEndsCoordinates(LineString line,
                              Point coordinates)

getCrossingIntersection

public static Point getCrossingIntersection(LineString line1,
                            LineString line2)

Get the coordinate where two lines cross, or null if they don't cross.

Parameters:

line1 - The first line.

line2 - The second line

Returns:

The coordinate or null if they don't cross

getElevation

public static double getElevation(Point point,
                  Point point1,
                  Point point2)

getEndPoint

public static Point getEndPoint(LineString line,
                boolean fromPoint)

getMergedLines

public static Collection<LineString> getMergedLines(MultiLineString multiLineString)

getMergeLine

public static LineString getMergeLine(MultiLineString multiLineString)

hasEndPoint

public static boolean hasEndPoint(LineString line,
                  Point point)

hasEqualExact2d

public static boolean hasEqualExact2d(List<LineString> lines,
                      LineString newLine)

hasLoop

public static boolean hasLoop(Collection<LineString> lines)

intersects

public static boolean intersects(LineString line1,
                 LineString line2)

isEndsWithinDistance

public static boolean isEndsWithinDistance(LineString line1,
                           LineString line2,
                           double maxDistance)

isEndsWithinDistance

public static boolean isEndsWithinDistance(LineString line,
                           Point point,
                           double maxDistance)

isEndsWithinDistanceOfEnds

public static boolean isEndsWithinDistanceOfEnds(LineString line1,
                                 LineString line2,
                                 double maxDistance)

isPointOnLine

public static boolean isPointOnLine(LineString line,
                    Point point)

Check to see if the point is on any of the segments of the line.

Parameters:

line - The line.

point - The point.

Returns:

True if the point is on the line, false otherwise.

See Also:

LineSegmentUtil#isPointOnLine(GeometryFactory, Coordinates, Coordinates, Point)

isPointOnLine

public static boolean isPointOnLine(LineString line,
                    Point point,
                    double maxDistance)

Check to see if the point is on any of the segments of the line.

Parameters:

line - The line.

point - The point.

maxDistance - The maximum distance the point can be from the line.

Returns:

True if the point is on the line, false otherwise.

See Also:

LineSegmentUtil#isPointOnLine(Coordinates, Coordinates, Coordinates, double)

isWithinDistance

public static boolean isWithinDistance(Point point,
                       LineString line,
                       int index,
                       double maxDistance)

isWithinDistanceOfEnds

public static boolean isWithinDistanceOfEnds(Point point,
                             LineString line,
                             double maxDistance)

merge

public static LineString merge(List<LineString> lines)

midPoint

public static Point midPoint(LineString line)

split

public static List<LineString> split(GeometryFactory geometryFactory,
                     LineString line,
                     LineSegmentIndex index,
                     double tolerance)

split

public static List<LineString> split(LineString line,
                     int segmentIndex,
                     Point point)