gistools/readers/gtfs/realtime/
position.rs

1use pbf::{ProtoRead, Protobuf};
2
3/// A Position is a point on the Earth's surface.
4#[derive(Debug, Default, Clone, PartialEq)]
5pub struct GTFSRealtimePosition {
6    /// Degrees North, in the WGS-84 coordinate system.
7    pub latitude: f32, // 1 [float]
8    /// Degrees East, in the WGS-84 coordinate system.
9    pub longitude: f32, // 2 [float]
10    /// Bearing, in degrees, clockwise from North, i.e., 0 is North and 90 is East.
11    /// This can be the compass bearing, or the direction towards the next stop
12    /// or intermediate location.
13    /// This should not be direction deduced from the sequence of previous
14    /// positions, which can be computed from previous data.
15    pub bearing: Option<f32>, // 3 [float]
16    /// Odometer value, in meters.
17    pub odometer: Option<f64>, // 4 [double]
18    /// Momentary speed measured by the vehicle, in meters per second.
19    pub speed: Option<f32>, // 5 [float]
20}
21/// Read in the contents of the GTFSRealtimePosition
22impl ProtoRead for GTFSRealtimePosition {
23    fn read(&mut self, tag: u64, pb: &mut Protobuf) {
24        match tag {
25            1 => self.latitude = pb.read_fixed(),
26            2 => self.longitude = pb.read_fixed(),
27            3 => self.bearing = Some(pb.read_fixed()),
28            4 => self.odometer = Some(pb.read_fixed()),
29            5 => self.speed = Some(pb.read_fixed()),
30            _ => panic!("unknown tag {}", tag),
31        }
32    }
33}
gistools/readers/gtfs/realtime/position.rs

gistools/readers/gtfs/realtime/
position.rs
