Package org.goplanit.gtfs.util

Class GtfsLinkHelper

java.lang.Object

org.goplanit.gtfs.util.GtfsLinkHelper

public class GtfsLinkHelper
extends Object

Utils class related to GTFS and PLANit link functionality

Author:

markr

Constructor Summary

Constructors

Constructor	Description
GtfsLinkHelper()

Method Summary

Modifier and Type	Method	Description
static void	breakLinksAtPlanitNode(Node planitNode, MacroscopicNetworkLayer networkLayer, MacroscopicLink linkToBreak, Collection<GraphModifierListener> temporaryListeners, GtfsZoningHandlerData data)	break a PLANit link at the PLANit node location while also updating all related tracking indices and/or PLANit network link and link segment references that might be affected by this process: tracking of geo indexed PLANit links connectoid access link segments affected by breaking of link (if any)
static Pair<Node,Boolean>	extractNodeByLinkGeometryLocation(org.locationtech.jts.geom.Point gtfsStopNodeLocation, MacroscopicLink referenceLink, MacroscopicNetworkLayer networkLayer, GtfsZoningHandlerData data)	Extract/create a PLANit node based on the given location.
static Collection<MacroscopicLink>	findNearbyLinks(org.locationtech.jts.geom.Point location, double pointSearchRadiusMeters, GtfsZoningHandlerData data)	Find nearby links based on a given search radius

Methods inherited from class java.lang.Object

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

Constructor Detail

GtfsLinkHelper

public GtfsLinkHelper()

Method Detail

findNearbyLinks

public static Collection<MacroscopicLink> findNearbyLinks(org.locationtech.jts.geom.Point location,
                                                          double pointSearchRadiusMeters,
                                                          GtfsZoningHandlerData data)

Find nearby links based on a given search radius

Parameters:

location - point location to search around (in WGS84 CRS)

pointSearchRadiusMeters - search radius to apply

data - containing state

Returns:

found links around this location (in network CRS)

extractNodeByLinkGeometryLocation

public static Pair<Node,Boolean> extractNodeByLinkGeometryLocation(org.locationtech.jts.geom.Point gtfsStopNodeLocation,
                                                                         MacroscopicLink referenceLink,
                                                                         MacroscopicNetworkLayer networkLayer,
                                                                         GtfsZoningHandlerData data)

Extract/create a PLANit node based on the given location. Either it already exists as a PLANit node, or it is internal to an existing link. In the latter case a new node is created and the existing link is broken. In the former case, we simply collect the PLANit node. When we break the link all relevant GTFS relate state data is also updated to reflect the enw situation appropriately

Parameters:

gtfsStopNodeLocation - to collect/create PLANit node for (can be slightly altered in case of rounding/syncing with reference link geometry)

referenceLink - the location is related to, can be internal can be an extreme node

networkLayer - to extract node on

data - containing state

Returns:

PLANit node collected/created, and flag indicating if this required breaking a link and node is newly created (true), false otherwise

breakLinksAtPlanitNode

public static void breakLinksAtPlanitNode(Node planitNode,
                                          MacroscopicNetworkLayer networkLayer,
                                          MacroscopicLink linkToBreak,
                                          Collection<GraphModifierListener> temporaryListeners,
                                          GtfsZoningHandlerData data)

break a PLANit link at the PLANit node location while also updating all related tracking indices and/or PLANit network link and link segment references that might be affected by this process:

• tracking of geo indexed PLANit links
• connectoid access link segments affected by breaking of link (if any)

Parameters:

planitNode - to break link at (its location, it is assumed node has already been created)

networkLayer - the node and link(s) reside on

linkToBreak - the link to break

temporaryListeners - graph modifier listeners to register and apply when breaking link(s) at PLANit node location, and unregister afterwards

data - containing state