math.geom2d.polygon
Class Polyline2DUtils

java.lang.Object
  math.geom2d.polygon.Polyline2DUtils

public abstract class Polyline2DUtils
extends Object

Some utility functions for manipulating Polyline2D.

Since:

0.6.3

Author:

dlegland

Constructor Summary

Polyline2DUtils()

Method Summary

static BoundaryPolyCurve2D<SmoothOrientedCurve2D>	createClosedParallel(LinearRing2D polyline, double d) Creates a curve parallel to the given polyline, at a distance d.
static PolyOrientedCurve2D<SmoothOrientedCurve2D>	createParallel(Polyline2D polyline, double d) Creates a curve parallel to the given polyline, at a distance d.
static Collection<Point2D>	intersect(Polyline2D poly1, Polyline2D poly2) Return all intersection points between the 2 polylines.

Methods inherited from class java.lang.Object

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

Constructor Detail

Polyline2DUtils

public Polyline2DUtils()

Method Detail

createParallel

public static final PolyOrientedCurve2D<SmoothOrientedCurve2D> createParallel(Polyline2D polyline,
                                                                              double d)

Creates a curve parallel to the given polyline, at a distance d. The resulting curve is continuous, but can self-intersect. It is composed of line segments, and circle arcs.

Parameters:

polyline - the source curve

d - the signed distance between the original curve and its parallel

Returns:

the curve parallel to the original curve at a distance d

createClosedParallel

public static final BoundaryPolyCurve2D<SmoothOrientedCurve2D> createClosedParallel(LinearRing2D polyline,
                                                                                    double d)

Creates a curve parallel to the given polyline, at a distance d. The resulting curve is continuous, but can self-intersect. It is composed of line segments, and circle arcs.

Parameters:

polyline - the source curve

d - the signed distance between the original curve and its parallel

Returns:

the curve parallel to the original curve at a distance d

intersect

public static final Collection<Point2D> intersect(Polyline2D poly1,
                                                  Polyline2D poly2)

Return all intersection points between the 2 polylines.

Parameters:

poly1 - a polyline

poly2 - a polyline

Returns:

the set of intersection points