Java Code Examples for org.matsim.api.core.v01.network.Network#addLink()

/**
 * Creates a node and dummy/loop link on the coordinate of the stop facility and
 * adds both to the network. The stop facility is NOT referenced.
 *
 * @return the new link or the existing link if it's already present in the network
 */
public static Link createArtificialStopFacilityLink(TransitStopFacility stopFacility, Network network, String prefix, double freespeed, Set<String> transportModes) {
	Id<Link> dummyLinkId = createArtificialLinkId(stopFacility);

	Link dummyLink = network.getLinks().get(dummyLinkId);
	if(dummyLink != null) {
		return dummyLink;
	} else {
		Node dummyNode = NetworkUtils.createNode(Id.createNodeId(prefix + stopFacility.getId()), stopFacility.getCoord());
		network.addNode(dummyNode);
		dummyLink = NetworkUtils.createLink(dummyLinkId, dummyNode, dummyNode, network, 10, freespeed, 9999, 1);
		dummyLink.setAllowedModes(transportModes);
		network.addLink(dummyLink);

		return dummyLink;
	}
}
 

/**
 * Adds the artificial links to the network.
 *
 * Not thread safe.
 */
@Override
public void addArtificialLinks(Network network) {
	for(ArtificialLink a : necessaryArtificialLinks) {
		if(!network.getLinks().containsKey(a.getId())) {
			network.addLink(a);
		}
	}
}
 

private static void makeMultimodal(Scenario scenario) {
    // Add pt-links to the network to test a multimodal network as it appears in standard MATSim use cases

    Network network = scenario.getNetwork();
    NetworkFactory factory = network.getFactory();

    // Let's build a fast track through the scenario
    for (int i = 0; i < 9; i++) {
        Id<Link> ptFowardLinkId = Id.createLinkId(String.format("pt_fwd_%d:%d", i, i));
        Id<Link> ptBackwardLinkId = Id.createLinkId(String.format("pt_bck_%d:%d", i, i));
        Id<Node> fromNodeId = Id.createNodeId(String.format("%d:%d", i, i));
        Id<Node> toNodeId = Id.createNodeId(String.format("%d:%d", i + 1, i + 1));

        Link ptFowardLink = factory.createLink(ptFowardLinkId, network.getNodes().get(fromNodeId), network.getNodes().get(toNodeId));
        ptFowardLink.setFreespeed(100.0 * 1000.0 / 3600.0);
        ptFowardLink.setLength(1000.0);
        ptFowardLink.setAllowedModes(Collections.singleton("pt"));
        network.addLink(ptFowardLink);

        Link ptBackwardLink = factory.createLink(ptBackwardLinkId, network.getNodes().get(toNodeId), network.getNodes().get(fromNodeId));
        ptBackwardLink.setFreespeed(100.0 * 1000.0 / 3600.0);
        ptBackwardLink.setLength(1000.0);
        ptBackwardLink.setAllowedModes(Collections.singleton("pt"));
        network.addLink(ptBackwardLink);
    }

    // Also, a routed population may have "pt interaction" activities, which take place at links that are not part of the road network. Amodeus must be able
    // to
    // handle these cases.

    /* for (Person person : scenario.getPopulation().getPersons().values())
     * for (Plan plan : person.getPlans()) {
     * Activity trickyActivity = PopulationUtils.createActivityFromCoordAndLinkId("pt interaction", new Coord(5500.0, 5500.0), Id.createLinkId("pt_fwd_5:5"));
     * 
     * plan.getPlanElements().add(PopulationUtils.createLeg("walk"));
     * plan.getPlanElements().add(trickyActivity);
     * } */

    // TODO @sebhoerl Difficult to keep this in as handling of "interaction" activities become much smarter in MATSim now. We would need to
    // set up a much more realistic test scenario. There is one in the AV package, so we can use that one!

    for (Link link : network.getLinks().values()) {
        if (link.getAllowedModes().contains("car")) {
            link.setAllowedModes(new HashSet<>(Arrays.asList("car", AmodeusModeConfig.DEFAULT_MODE)));
        }
    }
}
 

static private void generateNetwork(Network network) {
    NetworkFactory networkFactory = network.getFactory();

    for (int i = 0; i < networkSize; i++) {
        for (int j = 0; j < networkSize; j++) {
            network.addNode(networkFactory.createNode(Id.createNodeId(String.format("%d:%d", i, j)), new Coord(i * networkScale, j * networkScale)));
        }
    }

    Node fromNode;
    Node toNode;

    for (int i = 0; i < networkSize; i++) {
        for (int j = 1; j < networkSize; j++) {
            fromNode = network.getNodes().get(Id.createNodeId(String.format("%d:%d", i, j - 1)));
            toNode = network.getNodes().get(Id.createNodeId(String.format("%d:%d", i, j)));
            network.addLink(networkFactory.createLink(Id.createLinkId(String.format("%s_%s", fromNode.getId(), toNode.getId())), fromNode, toNode));

            fromNode = network.getNodes().get(Id.createNodeId(String.format("%d:%d", i, j)));
            toNode = network.getNodes().get(Id.createNodeId(String.format("%d:%d", i, j - 1)));
            network.addLink(networkFactory.createLink(Id.createLinkId(String.format("%s_%s", fromNode.getId(), toNode.getId())), fromNode, toNode));
        }
    }

    for (int j = 0; j < networkSize; j++) {
        for (int i = 1; i < networkSize; i++) {
            fromNode = network.getNodes().get(Id.createNodeId(String.format("%d:%d", i - 1, j)));
            toNode = network.getNodes().get(Id.createNodeId(String.format("%d:%d", i, j)));
            network.addLink(networkFactory.createLink(Id.createLinkId(String.format("%s_%s", fromNode.getId(), toNode.getId())), fromNode, toNode));

            fromNode = network.getNodes().get(Id.createNodeId(String.format("%d:%d", i, j)));
            toNode = network.getNodes().get(Id.createNodeId(String.format("%d:%d", i - 1, j)));
            network.addLink(networkFactory.createLink(Id.createLinkId(String.format("%s_%s", fromNode.getId(), toNode.getId())), fromNode, toNode));
        }
    }

    for (Link link : network.getLinks().values()) {
        link.setFreespeed(freespeed);
        link.setLength(networkScale);
    }
}
 

/**
 * Integrates <tt>network B</tt> into <tt>network A</tt>. Network
 * A contains all links and nodes of both networks
 * after integration.
 */
public static void integrateNetwork(final Network networkA, final Network networkB, boolean mergeModes) {
	final NetworkFactory factory = networkA.getFactory();

	// Nodes
	for(Node node : networkB.getNodes().values()) {
		Id<Node> nodeId = Id.create(node.getId().toString(), Node.class);
		if(!networkA.getNodes().containsKey(nodeId)) {
			Node newNode = factory.createNode(nodeId, node.getCoord());
			networkA.addNode(newNode);
		}
	}

	// Links
	double capacityFactor = networkA.getCapacityPeriod() / networkB.getCapacityPeriod();
	for(Link link : networkB.getLinks().values()) {
		Id<Link> linkId = Id.create(link.getId().toString(), Link.class);
		if(!networkA.getLinks().containsKey(linkId)) {
			Id<Node> fromNodeId = Id.create(link.getFromNode().getId().toString(), Node.class);
			Id<Node> toNodeId = Id.create(link.getToNode().getId().toString(), Node.class);
			Link newLink = factory.createLink(linkId, networkA.getNodes().get(fromNodeId), networkA.getNodes().get(toNodeId));
			newLink.setAllowedModes(link.getAllowedModes());
			newLink.setCapacity(link.getCapacity() * capacityFactor);
			newLink.setFreespeed(link.getFreespeed());
			newLink.setLength(link.getLength());
			newLink.setNumberOfLanes(link.getNumberOfLanes());
			networkA.addLink(newLink);
		} else if (mergeModes) {
			Link existingLink = networkA.getLinks().get(linkId);
			
			Set<String> allowedModes = new HashSet<>();
			allowedModes.addAll(existingLink.getAllowedModes());
			allowedModes.addAll(link.getAllowedModes());
			
			existingLink.setAllowedModes(allowedModes);
			
			if (link.getCapacity() * capacityFactor != existingLink.getCapacity()) {
				throw new IllegalStateException("Capacity must be equal for integration");
			}
			
			if (link.getFreespeed() != existingLink.getFreespeed()) {
				throw new IllegalStateException("Freespeed must be equal for integration");
			}
			
			if (link.getLength() != existingLink.getLength()) {
				throw new IllegalStateException("Length must be equal for integration");
			}
			
			if (link.getNumberOfLanes() != existingLink.getNumberOfLanes()) {
				throw new IllegalStateException("Number of lanes must be equal for integration");
			}
		}
	}
}