// Distance measure
public static float DistanceTo(XmlTimeline.Coordinates wp1, XmlTimeline.Coordinates wp2, char unit = 'K')
{
// Copied from
// https://stackoverflow.com/questions/6366408/calculating-distance-between-two-latitude-and-longitude-geocoordinates
double rlat1 = Math.PI * wp1.lat / 180;
double rlat2 = Math.PI * wp2.lat / 180;
double theta = wp1.lon - wp2.lon;
double rtheta = Math.PI * theta / 180;
double dist =
Math.Sin(rlat1) * Math.Sin(rlat2) + Math.Cos(rlat1) *
Math.Cos(rlat2) * Math.Cos(rtheta);
dist = Math.Acos(dist);
dist = dist * 180 / Math.PI;
dist = dist * 60 * 1.1515;
float distF = (float)dist;
switch (unit)
{
case 'K': //Kilometers -> default
return(distF * 1.609344f);
case 'N': //Nautical Miles
return(distF * 0.8684f);
case 'M': //Miles
return(distF);
}
return(distF);
}
void GetPlace(GpxTools.Gpx.GpxWayPoint waypoint)
{
// location
XmlTimeline.Coordinates location = new XmlTimeline.Coordinates(waypoint.Latitude, waypoint.Longitude);
// time
DateTime?startTime = waypoint.Time;
// ele
double?ele = waypoint.Elevation;
// name (if exist)
string name = waypoint.Name;
string link = "";
if (waypoint.Links.Count > 0)
{
link = waypoint.Links[0].Href;
}
// If previous is place
if (timelineItems.Count >= 1 && timelineItems.Last().type == XmlTimeline.TimelineItemType.place)
{
if (!timelineItems.Last().place.endTime.HasValue&& startTime.HasValue)
{
timelineItems.Last().place.endTime = startTime;
}
else
{
startTime = timelineItems.Last().place.startTime;
}
}
else if (timelineItems.Count >= 1 && timelineItems.Last().type == XmlTimeline.TimelineItemType.activity && !startTime.HasValue)
{
startTime = timelineItems.Last().activity.endTime;
}
timelineItems.Add(new XmlTimeline.TimelineItem(new XmlTimeline.Place(location, name, startTime, ele, link)));
}
public static float DistanceTo(JsonMoves.Day.Segment.Place.Location jwp1, JsonMoves.Day.Segment.Place.Location jwp2, char unit = 'K')
{
XmlTimeline.Coordinates wp1 = new XmlTimeline.Coordinates(jwp1.lat, jwp1.lon);
XmlTimeline.Coordinates wp2 = new XmlTimeline.Coordinates(jwp2.lat, jwp2.lon);
return(DistanceTo(wp1, wp2, unit));
}
