Package org.opentrafficsim.base.geometry

Class DirectionalPolyLine

java.lang.Object

org.djutils.draw.line.PolyLine2d

org.opentrafficsim.base.geometry.OtsLine2d

org.opentrafficsim.base.geometry.DirectionalPolyLine

All Implemented Interfaces:

Iterable<Point2d>, Locatable, Drawable<Point2d>, Drawable2d, PolyLine<PolyLine2d,Point2d,Ray2d,DirectedPoint2d,LineSegment2d>, Project<Point2d>

public class DirectionalPolyLine
extends OtsLine2d

Adds a direction at the start and end point relative to its super class OtsLine2d, as the first and last segment may not have the same direction as a theoretical line the segments are a numerical approach of. These directions are used in a few methods which alter the result from the super class. The most notable addition of this class is directionalOffsetLine.

Nested Class Summary

Nested classes/interfaces inherited from class org.opentrafficsim.base.geometry.OtsLine2d

OtsLine2d.FractionalFallback

Nested classes/interfaces inherited from interface org.djutils.draw.line.PolyLine

PolyLine.TransitionFunction

Field Summary

Fields inherited from interface org.djutils.draw.line.PolyLine

DEFAULT_CIRCLE_PRECISION, DEFAULT_OFFSET_FILTER_RATIO, DEFAULT_OFFSET_MAXIMUM_FILTER_VALUE, DEFAULT_OFFSET_MINIMUM_FILTER_VALUE, DEFAULT_OFFSET_PRECISION, NO_FILTER

Constructor Summary

Constructors

Constructor	Description
DirectionalPolyLine(PolyLine2d line, Direction startDirection, Direction endDirection)	Constructor.

Method Summary

Modifier and Type	Method	Description
DirectionalPolyLine	directionalOffsetLine(double offset)	Returns line at a fixed offset, adhering to end-point directions.
DirectionalPolyLine	directionalOffsetLine(double startOffset, double endOffset)	Returns line at a fixed offset, adhering to end-point directions.
DirectionalPolyLine	extractFractional(double start, double end)	Construct a new OtsLine2d covering the indicated fraction of this OtsLine2d.
Direction	getEndDirection()	Returns the end direction.
Ray2d	getLocationFraction(double fraction)
Direction	getStartDirection()	Returns the start direction.
double	projectFractional(double x, double y, OtsLine2d.FractionalFallback fallback)	Fractional projection applied with the internal start and end direction.

Methods inherited from class org.opentrafficsim.base.geometry.OtsLine2d

concatenate, concatenate, concatenate, extract, extract, getCentroid, getLocation, getLocation, getLocationExtended, getLocationExtendedSI, getLocationPointFraction, getLocationPointFraction, getLocationPointFractionExtended, getLocationSI, getProjectedRadius, getProjectedVertexRadius, getRelativeBounds, getTypedLength, getVertexFraction, offsetLine, offsetLine, offsetLine, projectFractional, projectOrthogonalSnap, reverse, truncate

Methods inherited from class org.djutils.draw.line.PolyLine2d

closestPointOnPolyLine, concatenate, concatenate, concatenate, equals, get, getAbsoluteBounds, getLength, getLocation, getLocationExtended, getSegment, getX, getY, hashCode, instantiate, iterator, iteratorToList, lengthAtIndex, makeArray, noiseFilteredLine, offsetLine, offsetLine, offsetLine, projectOrthogonal, projectOrthogonalExtended, projectOrthogonalFractional, projectOrthogonalFractionalExtended, projectRay, size, toPath2D, toString, toString, transitionLine

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.djutils.draw.Drawable

getPointList, toString, toString

Methods inherited from interface org.djutils.draw.Drawable2d

getDimensions

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Methods inherited from interface nl.tudelft.simulation.dsol.animation.Locatable

getDirZ, getZ

Methods inherited from interface org.djutils.draw.line.PolyLine

filterNearDuplicates, find, getFirst, getLast, getLocationFraction, getLocationFractionExtended, instantiate

Constructor Details

DirectionalPolyLine

public DirectionalPolyLine(PolyLine2d line,
 Direction startDirection,
 Direction endDirection)

Constructor.

Parameters:

line - base line

startDirection - start direction

endDirection - end direction

Method Details

directionalOffsetLine

public DirectionalPolyLine directionalOffsetLine(double offset)

Returns line at a fixed offset, adhering to end-point directions.

Parameters:

offset - offset

Returns:

offset line

directionalOffsetLine

public DirectionalPolyLine directionalOffsetLine(double startOffset,
 double endOffset)

Returns line at a fixed offset, adhering to end-point directions.

Parameters:

startOffset - offset at start

endOffset - offset at end

Returns:

offset line

extractFractional

public DirectionalPolyLine extractFractional(double start,
 double end)

Description copied from class: OtsLine2d

Construct a new OtsLine2d covering the indicated fraction of this OtsLine2d.

Specified by:

extractFractional in interface PolyLine<PolyLine2d,Point2d,Ray2d,DirectedPoint2d,LineSegment2d>

Overrides:

extractFractional in class OtsLine2d

Parameters:

start - starting point, valid range [0..end)

end - ending point, valid range (start..1]

Returns:

the new OtsLine2d

getLocationFraction

public Ray2d getLocationFraction(double fraction)

projectFractional

public double projectFractional(double x,
 double y,
 OtsLine2d.FractionalFallback fallback)

Fractional projection applied with the internal start and end direction.

Parameters:

x - x-coordinate

y - y-coordinate

fallback - fallback method

Returns:

fraction along line which it the projection of the given coordinate

getStartDirection

public Direction getStartDirection()

Returns the start direction.

Returns:

start direction

getEndDirection

public Direction getEndDirection()

Returns the end direction.

Returns:

end direction