Native

Giro

A native route recorder with local history and a smaller representation for drawing long routes.

Try the mechanism

Compare a recorded route with the smaller copy used to draw it.

Try the example →Read the account →Inspect implementation →

The example uses synthetic inputs to isolate this behavior. It does not operate the underlying app.

The recorder preserves coordinates while RouteSimplifier returns a display copy. It thins points by distance and then applies a point budget, keeping the endpoints.

Inside the implementation

Giro/RouteSimplifier.swift · signature and distance check excerpts

static func displayCoordinates(
    from coordinates: [GeoCoordinate],
    minimumDistance: CLLocationDistance = 4,
    maximumPoints: Int = 1_200
) -> [CLLocationCoordinate2D]

// In the intermediate-point loop:
if location.distance(from: lastLocation) >= minimumDistance {
    thinned.append(coordinate)
    lastLocation = location
}

Read the explanation →

Implementation decisions

Preserve the archived recording.
Bound the number of points sent to the renderer.
Keep navigation handoff separate from recording.

Built with

Swift · SwiftUI · Core Location

See the stack →Repository (access may be required) ↗