private bool AddPoint(List <PointLatLng> mapPoints, Geo.Gps.Fix lastPoint, Geo.Gps.Fix newPoint, double minimimDistance, string tagName)
{
double distance = GetDistance(lastPoint.Coordinate.Latitude, lastPoint.Coordinate.Longitude, newPoint.Coordinate.Latitude, newPoint.Coordinate.Longitude);
if (options.DisconnectGapPoints && distance >= options.DisconnectTrackGapsMultiple * minimimDistance)
{
// start new route if point is too far away
AddRoute(mapPoints, tagName);
mapPoints.Clear();
mapPoints.Add(new PointLatLng(newPoint.Coordinate.Latitude, newPoint.Coordinate.Longitude));
return(true);
}
else if (distance > minimimDistance)
{
mapPoints.Add(new PointLatLng(newPoint.Coordinate.Latitude, newPoint.Coordinate.Longitude));
return(true);
}
return(false);
}
public void Run(GMapControl gMap, List <Geo.Gps.Track> tracks, TracksOptimiserOptions options)
{
if (tracks == null)
{
return;
}
this.gMap = gMap;
this.options = options;
int minPixels = 10;
switch (options.TracksStyles)
{
case TracksStyles.Simple: minPixels = 3; break;
case TracksStyles.With_background: minPixels = 7; break;
default: break;
}
double minimimDistance = minPixels /* at least 3 pixels */ * gMap.ViewArea.WidthLng / gMap.Size.Width;
int oldCount = 0, newCount = 0;
GMapOverlay tracksPolygonsOverlay = FindOverlay(Constants.TracksPolygonsId, gMap);
GMapOverlay tracksPolygons2Overlay = FindOverlay(Constants.TracksPolygons2Id, gMap);
GMapOverlay tracksPolygons3Overlay = FindOverlay(Constants.TracksPolygons3Id, gMap);
if (tracksPolygonsOverlay == null)
{
tracksPolygonsOverlay = new GMapOverlay(Constants.TracksPolygonsId);
tracksPolygons2Overlay = new GMapOverlay(Constants.TracksPolygons2Id);
tracksPolygons3Overlay = new GMapOverlay(Constants.TracksPolygons3Id);
gMap.Overlays.Add(tracksPolygons3Overlay);
gMap.Overlays.Add(tracksPolygons2Overlay);
gMap.Overlays.Add(tracksPolygonsOverlay);
}
tracksPolygonsOverlay.Routes.Clear();
tracksPolygons2Overlay.Routes.Clear();
tracksPolygons3Overlay.Routes.Clear();
foreach (var track in tracks)
{
Geo.Gps.Fix lastPoint = track.GetFirstFix();
string tagName = lastPoint.TimeUtc.ToShortDateString() + " " + lastPoint.TimeUtc.ToShortTimeString();
if (track.Metadata.ContainsKey("name"))
{
tagName += "; " + track.Metadata["name"].ToString();
}
if (track.Metadata.ContainsKey("filename"))
{
tagName += "; " + track.Metadata["filename"].ToString();
}
// add route for each segment, segments may be separate
foreach (var segment in track.Segments)
{
List <PointLatLng> mapPoints = new List <PointLatLng>();
lastPoint = segment.GetFirstFix();
mapPoints.Add(new PointLatLng(lastPoint.Coordinate.Latitude, lastPoint.Coordinate.Longitude));
foreach (var point in segment.Fixes)
{
if (AddPoint(mapPoints, lastPoint, point, minimimDistance, tagName))
{
lastPoint = point;
newCount++;
}
oldCount++;
}
// always add last point, single gpx file may be divided by tracks
if (segment.GetLastFix() != lastPoint)
{
Geo.Gps.Fix newPoint = segment.GetLastFix();
mapPoints.Add(new PointLatLng(newPoint.Coordinate.Latitude, newPoint.Coordinate.Longitude));
}
if (mapPoints.Count > 1)
{
AddRoute(mapPoints, tagName);
}
}
}
double ratio = (double)newCount / oldCount * 100;
Info = "Map points: " + newCount + " (" + ratio.ToString("F0") + "%)";
gMap.Refresh();
}
