BlockInstance blockInstance, CoordinatePoint location, long timestamp,
double blockDistanceFrom, double blockDistanceTo) {
BlockConfigurationEntry block = blockInstance.getBlock();
ProjectedPoint targetPoint = ProjectedPointFactory.forward(location);
List<AgencyAndId> shapePointIds = MappingLibrary.map(block.getTrips(),
"trip.shapeId");
T2<List<XYPoint>, double[]> tuple = _projectedShapePointService.getProjectedShapePoints(
shapePointIds, targetPoint.getSrid());
if (tuple == null) {
throw new IllegalStateException("block had no shape points: "
+ block.getBlock().getId());
}
List<XYPoint> projectedShapePoints = tuple.getFirst();
double[] distances = tuple.getSecond();
int fromIndex = 0;
int toIndex = distances.length;
if (blockDistanceFrom > 0) {
fromIndex = Arrays.binarySearch(distances, blockDistanceFrom);
if (fromIndex < 0) {
fromIndex = -(fromIndex + 1);
// Include the previous point if we didn't get an exact match
if (fromIndex > 0)
fromIndex--;
}
}
if (blockDistanceTo < distances[distances.length - 1]) {
toIndex = Arrays.binarySearch(distances, blockDistanceTo);
if (toIndex < 0) {
toIndex = -(toIndex + 1);
// Include the previous point if we didn't get an exact match
if (toIndex < distances.length)
toIndex++;
}
}
XYPoint xyPoint = new XYPoint(targetPoint.getX(), targetPoint.getY());
List<PointAndIndex> assignments = _shapePointsLibrary.computePotentialAssignments(
projectedShapePoints, distances, xyPoint, fromIndex, toIndex);
Min<ScheduledBlockLocation> best = new Min<ScheduledBlockLocation>();