private async Task MovePoint(MemoryLayer highlightLayer, GeoLine baseline, double percentageRatio, int i)
{
GeoPoint point = await Task.Run(() => baseline.GetPoint((float)percentageRatio *i));
highlightLayer.Features.Clear();
highlightLayer.Features.Add(new Feature(point));
Map1.Refresh("HighlightOverlay");
await Task.Run(() => Thread.Sleep(50));
}
private async void PlayButton_Click(object sender, RoutedEventArgs e)
{
Button playButton = (Button)sender;
SettingLayout.IsEnabled = false;
GeoCoordinate position = routeLine.Coordinates.First();
int ellapsedTime = 0;
GeoPoint previousePoint = null;
bool quiteTracking = false;
double targetRotation = 0;
while (true)
{
double divenDistance = ellapsedTime / (1000 * 60 * 60 / ellapsedTimeSpeedUpRatio) * speedKph;
if (divenDistance > routeLength)
{
divenDistance = routeLength;
quiteTracking = true;
}
GeoPoint currentPosition = await Task.Run(() => routeLine.GetPoint(divenDistance, LengthUnit.Kilometer, GeoUnit.Meter));
Marker vehicle = (Marker)Map1.Placements.First();
vehicle.DropShadow = false;
vehicle.Location = new GeoCoordinate(currentPosition);
UpdateLonLat(currentPosition);
MapViewport newViewport = new MapViewport(new GeoPoint(vehicle.Location), Map1.CurrentScale, Map1.Rotation);
if (previousePoint != null)
{
double angle = -Math.Atan2(currentPosition.Y - previousePoint.Y, currentPosition.X - previousePoint.X) * 180 / Math.PI;
angle = Math.Round(angle, 0);
if (keepHeadNorth)
{
targetRotation = -angle - 90;
}
else
{
RotateTransform trans = (RotateTransform)vehicle.RenderTransform;
trans.Angle = angle;
}
}
if (keepHeadNorth)
{
newViewport.Rotation = RotationHelper.GetRotatedAngle(targetRotation, Map1.Rotation, rotationIncrement);
Map1.Viewport = newViewport;
}
if (quiteTracking)
{
break;
}
previousePoint = currentPosition;
await Task.Run(() => Thread.Sleep(refreshInterval));
ellapsedTime += refreshInterval;
}
SettingLayout.IsEnabled = true;
}
