com.conveyal.gtfs.model.Shape Maven / Gradle / Ivy
/*
* Copyright (c) 2015, Conveyal
* All rights reserved.
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package com.conveyal.gtfs.model;
import com.conveyal.gtfs.GTFSFeed;
import org.locationtech.jts.geom.Coordinate;
import org.locationtech.jts.geom.GeometryFactory;
import org.locationtech.jts.geom.LineString;
import org.mapdb.Fun;
import java.util.Map;
/**
* Represents a collection of GTFS shape points. Never saved in MapDB but constructed on the fly.
*/
public class Shape {
public static GeometryFactory geometryFactory = new GeometryFactory();
/** The shape itself */
public LineString geometry;
/** shape_dist_traveled for each point in the geometry. TODO how to handle shape dist traveled not specified, or not specified on all stops? */
public double[] shape_dist_traveled;
public Shape (GTFSFeed feed, String shape_id) {
Map, ShapePoint> points =
feed.shape_points.subMap(new Fun.Tuple2(shape_id, null), new Fun.Tuple2(shape_id, Fun.HI));
Coordinate[] coords = points.values().stream()
.map(point -> new Coordinate(point.shape_pt_lon, point.shape_pt_lat))
.toArray(i -> new Coordinate[i]);
geometry = geometryFactory.createLineString(coords);
shape_dist_traveled = points.values().stream().mapToDouble(point -> point.shape_dist_traveled).toArray();
}
}