geomcache

package

v1.2.0 Latest Latest Go to latest Published: Jun 3, 2025 License: GPL-3.0 Imports: 4 Imported by: 0

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func InterpolateStopTimes(stoptimes []gtfs.StopTime) ([]gtfs.StopTime, error)

InterpolateStopTimes sets missing ArrivalTime, DestinationTime values. StopTimes must be sorted and valid.

type GeomCache struct {
	// contains filtered or unexported fields
}

GeomCache helps speed up StopTime interpolating by caching various results

func NewGeomCache() *GeomCache

NewGeomCache returns an initialized geomCache

func (g *GeomCache) AddShapeGeom(eid string, line []tlxy.Point, dists []float64)

func (g *GeomCache) AddStopGeom(eid string, pt tlxy.Point)

AddStopGeom adds a Stop to the geometry cache.

func (g *GeomCache) GetShape(eid string) []tlxy.Point

GetShape returns the coordinates for the cached shape.

func (g *GeomCache) GetShapeInfo(eid string) ShapeInfo

func (g *GeomCache) GetStop(eid string) tlxy.Point

GetStop returns the coordinates for the cached stop.

func (g *GeomCache) InterpolateStopTimes(trip *gtfs.Trip) ([]gtfs.StopTime, error)

InterpolateStopTimes uses the cached geometries to interpolate StopTimes. TODO: move to somewhere else

func (g *GeomCache) MakeShape(stopids ...string) ([]tlxy.Point, []float64, error)

MakeShape returns geometry for the given stops.

type ShapeInfo struct {
	Line       []tlxy.Point
	DistLength float64
}