public void CalculateTourMetrics()
{
var distanceMeters = 0.0;
var elevationUpMeters = 0.0;
var elevationDownMeters = 0.0;
var segmentCount = 0;
var waypointCount = 0;
foreach (var actSegment in this.Segments)
{
if (actSegment.Points.Count <= 1)
{
continue;
}
segmentCount++;
var lastPoint = actSegment.Points[0];
foreach (var actPoint in actSegment.Points.GetRange(1, actSegment.Points.Count - 1))
{
waypointCount++;
distanceMeters += GeoCalculator.CalculateDistanceMeters(
lastPoint, actPoint);
if (lastPoint.ElevationSpecified && actPoint.ElevationSpecified)
{
var elevationLast = (double)lastPoint.Elevation !;
var elevationAct = (double)actPoint.Elevation !;
if (elevationLast.Equals3DigitPrecision(elevationAct))
{
}
if (elevationAct > elevationLast)
{
elevationUpMeters += (elevationAct - elevationLast);
}
else
{
elevationDownMeters += (elevationLast - elevationAct);
}
}
lastPoint = actPoint;
}
}
this.DistanceKm = distanceMeters / 1000.0;
this.ElevationUpMeters = elevationUpMeters;
this.ElevationDownMeters = elevationDownMeters;
this.CountSegments = segmentCount;
this.CountWaypointsWithinSegments = waypointCount;
}
public void Check_CalculateDistance()
{
var point1 = new GpxWaypoint();
point1.Latitude = 49.638005001470447;
point1.Longitude = 12.266169972717762;
var point2 = new GpxWaypoint();
point2.Latitude = 49.6377810370177;
point2.Longitude = 12.265615006908774;
var distance = GeoCalculator.CalculateDistanceMeters(point1, point2);
Assert.AreEqual(47.0, Math.Round(distance, 0));
}
private void RecreateChartValues(ILoadedGpxFileTourInfo?singleSelectedTour)
{
_lineSeries.Values = null;
if (singleSelectedTour != null)
{
// Build a list of ObservablePoints before adding them to ChartValues<ObservablePoint> collection because of better performance
// see https://lvcharts.net/App/examples/v1/Wpf/Performance%20Tips
var actDistanceM = 0.0;
var generatedChartValues = new List <ObservablePoint>();
foreach (var actSegment in singleSelectedTour.Segments)
{
GpxWaypoint?lastPoint = null;
foreach (var actPoint in actSegment.Points)
{
if (lastPoint == null)
{
lastPoint = actPoint;
generatedChartValues.Add(new ObservablePoint(
actDistanceM / 1000.0,
actPoint.Elevation ?? 0.0));
continue;
}
actDistanceM += GeoCalculator.CalculateDistanceMeters(lastPoint, actPoint);
generatedChartValues.Add(new ObservablePoint(
actDistanceM / 1000.0,
actPoint.Elevation ?? 0.0));
lastPoint = actPoint;
}
}
var chartValues = new ChartValues <ObservablePoint>();
chartValues.AddRange(generatedChartValues);
_lineSeries.Values = chartValues;
}
this.RaisePropertyChanged(nameof(this.ElevationProfileVisibility));
}
