public LineString createGeometry(Vertex a, Vertex b) {
GeometryFactory factory = new GeometryFactory();
Coordinate[] cs = new Coordinate[2];
cs[0] = a.getCoordinate();
cs[1] = b.getCoordinate();
return factory.createLineString(cs);
}
public void testNetworkLinker() {
int numVerticesBefore = graph.getVertices().size();
NetworkLinker nl = new NetworkLinker(graph);
nl.createLinkage();
int numVerticesAfter = graph.getVertices().size();
assertEquals(4, numVerticesAfter - numVerticesBefore);
Collection<Edge> outgoing = graph.getOutgoing(station1);
assertTrue(outgoing.size() == 1);
DirectEdge edge = (DirectEdge) outgoing.iterator().next();
Vertex midpoint = edge.getToVertex();
assertTrue(Math.abs(midpoint.getCoordinate().y - 40.01) < 0.00000001);
outgoing = graph.getOutgoing(station2);
assertTrue(outgoing.size() == 1);
edge = (DirectEdge) outgoing.iterator().next();
Vertex station2point = edge.getToVertex();
assertTrue(Math.abs(station2point.getCoordinate().x - -74.002) < 0.00000001);
}