com.vividsolutions.jts.operation.overlay.snap

Class LineStringSnapper

java.lang.Object

com.vividsolutions.jts.operation.overlay.snap.LineStringSnapper

public class LineStringSnapper
extends Object

Snaps the vertices and segments of a LineString to a set of target snap vertices. A snap distance tolerance is used to control where snapping is performed.

The implementation handles empty geometry and empty snap vertex sets.

Version:

1.7

Author:

Martin Davis

Constructor Summary

Constructors

Constructor and Description
LineStringSnapper(Coordinate[] srcPts, double snapTolerance) Creates a new snapper using the given points as source points to be snapped.
LineStringSnapper(LineString srcLine, double snapTolerance) Creates a new snapper using the points in the given LineString as source snap points.

Method Summary

Methods

Modifier and Type	Method and Description
void	setAllowSnappingToSourceVertices(boolean allowSnappingToSourceVertices)
Coordinate[]	snapTo(Coordinate[] snapPts) Snaps the vertices and segments of the source LineString to the given set of snap vertices.

Methods inherited from class java.lang.Object

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

Constructor Detail

LineStringSnapper

public LineStringSnapper(LineString srcLine,
                 double snapTolerance)

Creates a new snapper using the points in the given LineString as source snap points.

Parameters:

srcLine - a LineString to snap (may be empty)

snapTolerance - the snap tolerance to use

LineStringSnapper

public LineStringSnapper(Coordinate[] srcPts,
                 double snapTolerance)

Creates a new snapper using the given points as source points to be snapped.

Parameters:

srcPts - the points to snap

snapTolerance - the snap tolerance to use

Method Detail

setAllowSnappingToSourceVertices

public void setAllowSnappingToSourceVertices(boolean allowSnappingToSourceVertices)

snapTo

public Coordinate[] snapTo(Coordinate[] snapPts)

Snaps the vertices and segments of the source LineString to the given set of snap vertices.

Parameters:

snapPts - the vertices to snap to

Returns:

a list of the snapped points