1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146

use abstutil::Timer;
use geom::{Distance, FindClosest, GPSBounds, LonLat, Pt2D, Ring};
use map_model::raw::RawMap;
use map_model::{osm, MapConfig, NamePerLanguage};

mod clip;
mod extract;
mod parking;
mod reader;
mod snappy;
mod split_ways;
mod srtm;
mod transit;

pub struct Options {
    pub osm_input: String,
    pub city_name: String,
    pub name: String,

    // The path to an osmosis boundary polygon. Highly recommended.
    pub clip: Option<String>,
    pub map_config: MapConfig,

    pub onstreet_parking: OnstreetParking,
    pub public_offstreet_parking: PublicOffstreetParking,
    pub private_offstreet_parking: PrivateOffstreetParking,
    // If provided, pull elevation data from this SRTM file. The SRTM parser is incorrect, so the
    // results will be nonsense.
    pub elevation: Option<String>,
    // OSM railway=rail will be included as light rail if so. Cosmetic only.
    pub include_railroads: bool,
}

// What roads will have on-street parking lanes? Data from
// https://wiki.openstreetmap.org/wiki/Key:parking:lane is always used if available.
pub enum OnstreetParking {
    // If not tagged, there won't be parking.
    JustOSM,
    // If OSM data is missing, then try to match data from
    // http://data-seattlecitygis.opendata.arcgis.com/datasets/blockface. This is Seattle specific.
    Blockface(String),
    // If OSM data is missing, then infer parking lanes on some percentage of
    // "highway=residential" roads.
    SomeAdditionalWhereNoData {
        // [0, 100]
        pct: usize,
    },
}

// How many spots are available in public parking garages?
pub enum PublicOffstreetParking {
    None,
    // Pull data from
    // https://data-seattlecitygis.opendata.arcgis.com/datasets/public-garages-or-parking-lots, a
    // Seattle-specific data source.
    GIS(String),
}

// If a building doesn't have anything from public_offstreet_parking and isn't tagged as a garage
// in OSM, how many private spots should it have?
pub enum PrivateOffstreetParking {
    FixedPerBldg(usize),
    // TODO Based on the number of residents?
}

pub fn convert(opts: Options, timer: &mut abstutil::Timer) -> RawMap {
    let mut map = RawMap::blank(&opts.city_name, &opts.name);
    if let Some(ref path) = opts.clip {
        let pts = LonLat::read_osmosis_polygon(path.to_string()).unwrap();
        let gps_bounds = GPSBounds::from(pts.clone());
        map.boundary_polygon = Ring::must_new(gps_bounds.convert(&pts)).to_polygon();
        map.gps_bounds = gps_bounds;
    }

    let extract = extract::extract_osm(&mut map, &opts, timer);
    let (amenities, pt_to_road) = split_ways::split_up_roads(&mut map, extract, timer);
    clip::clip_map(&mut map, timer);

    // Need to do a first pass of removing cul-de-sacs here, or we wind up with loop PolyLines when
    // doing the parking hint matching.
    abstutil::retain_btreemap(&mut map.roads, |r, _| r.i1 != r.i2);

    let all_routes = map.bus_routes.drain(..).collect::<Vec<_>>();
    let mut routes = Vec::new();
    for route in all_routes {
        let name = format!("{} ({})", route.osm_rel_id, route.full_name);
        match transit::snap_bus_stops(route, &mut map, &pt_to_road, timer) {
            Ok(r) => {
                routes.push(r);
            }
            Err(err) => {
                timer.error(format!("Skipping {}: {}", name, err));
            }
        }
    }
    map.bus_routes = routes;

    use_amenities(&mut map, amenities, timer);

    parking::apply_parking(&mut map, &opts, timer);

    if let Some(ref path) = opts.elevation {
        use_elevation(&mut map, path, timer);
    }

    snappy::snap_cycleways(&mut map, timer);

    map.config = opts.map_config;
    map
}

fn use_amenities(
    map: &mut RawMap,
    amenities: Vec<(Pt2D, NamePerLanguage, String)>,
    timer: &mut Timer,
) {
    let mut closest: FindClosest<osm::OsmID> = FindClosest::new(&map.gps_bounds.to_bounds());
    for (id, b) in &map.buildings {
        closest.add(*id, b.polygon.points());
    }

    timer.start_iter("match building amenities", amenities.len());
    for (pt, names, amenity) in amenities {
        timer.next();
        if let Some((id, _)) = closest.closest_pt(pt, Distance::meters(50.0)) {
            let b = map.buildings.get_mut(&id).unwrap();
            if b.polygon.contains_pt(pt) {
                b.amenities.insert((names, amenity));
            }
        }
    }
}

fn use_elevation(map: &mut RawMap, path: &str, timer: &mut Timer) {
    timer.start("apply elevation data to intersections");
    let elevation = srtm::Elevation::load(path).unwrap();
    for i in map.intersections.values_mut() {
        // TODO Not sure why, but I've seen nodes from South Carolina wind up in the updated
        // Seattle extract. And I think there's a bug with clipping, because they survive to this
        // point. O_O
        if map.boundary_polygon.contains_pt(i.point) {
            i.elevation = elevation.get(i.point.to_gps(&map.gps_bounds));
        }
    }
    timer.stop("apply elevation data to intersections");
}