private void MyMapView_GeoViewTapped(object sender, GeoViewInputEventArgs geoViewInputEventArgs)
{
// Get the tapped point, projected to WGS84.
MapPoint destination = (MapPoint)GeometryEngine.Project(geoViewInputEventArgs.Location, SpatialReferences.Wgs84);
// Update the destination graphic.
_endLocationGraphic.Geometry = destination;
// Get the points that define the route polyline.
PointCollection polylinePoints = new PointCollection(SpatialReferences.Wgs84)
{
(MapPoint)_startLocationGraphic.Geometry,
destination
};
// Create the polyline for the two points.
Polyline routeLine = new Polyline(polylinePoints);
// Densify the polyline to show the geodesic curve.
Geometry pathGeometry = GeometryEngine.DensifyGeodetic(routeLine, 1, LinearUnits.Kilometers, GeodeticCurveType.Geodesic);
// Apply the curved line to the path graphic.
_pathGraphic.Geometry = pathGeometry;
// Calculate and show the distance.
double distance = GeometryEngine.LengthGeodetic(pathGeometry, LinearUnits.Kilometers, GeodeticCurveType.Geodesic);
_distanceLabel.Text = $"{(int) distance} kilometers";
}
private void MyMapViewOnGeoViewTapped_Line(object sender, GeoViewInputEventArgs geoViewInputEventArgs)
{
// Get the tapped point, projected to WGS84.
MapPoint destination = (MapPoint)GeometryEngine.Project(geoViewInputEventArgs.Location, SpatialReferences.Wgs84);
mapPoints.Add(destination);
int len = mapPoints.Count();
Esri.ArcGISRuntime.Geometry.PointCollection polylinePoints;
Esri.ArcGISRuntime.Geometry.Geometry pathGeometry;
Esri.ArcGISRuntime.Geometry.Polyline routeLine;
if (len > 1)
{
polylinePoints = new Esri.ArcGISRuntime.Geometry.PointCollection(SpatialReferences.Wgs84)
{
mapPoints[len - 2],
destination
};
routeLine = new Esri.ArcGISRuntime.Geometry.Polyline(polylinePoints);
pathGeometry = GeometryEngine.DensifyGeodetic(routeLine, 1, LinearUnits.Kilometers, GeodeticCurveType.Geodesic);
// 这是测地线的长度
//double distance = GeometryEngine.LengthGeodetic(pathGeometry, LinearUnits.Kilometers, GeodeticCurveType.Geodesic);
double distance = GeometryEngine.Length(pathGeometry);
//double distance = GeometryEngine.Length(routeLine);
lengthList.Add(distance);
myMeasureResult.Text += "\n" + distance + " (地图默认长度单位)";
}
}
public FakeLocationProvider(Polyline route)
{
// Densify the route polyline.
Polyline densifiedRoute = (Polyline)GeometryEngine.DensifyGeodetic(route, 25.0, LinearUnits.Meters);
// Get all of the points from the densified polyline.
_gpsPoints = new List <MapPoint>(densifiedRoute.Parts[0].Points);
// Create a timer for updating the location.
_driveTimer = new Timer(_timerValue)
{
Enabled = false
};
_driveTimer.Elapsed += TimerElapsed;
}
public void PlotButton_Click(object sender, RoutedEventArgs e)
{
azimuthPoint = double.Parse(textAzimuth.Text);
distancePoint = double.Parse(textDistance.Text);
//distanceList.Add(distancePoint);
if (azimuthPoint <= 360)
{
if (azimuthPoint <= 180)
{
var result = azimuthPoint;
//azimuthList.Add(result);
//TraverseData.AzimuthList.Add(result);
//azimuthList.Add(result);
}
if (azimuthPoint > 180)
{
var result = 180 - (azimuthPoint);
//azimuthList.Add(result);
//TraverseData.AzimuthList.Add(result);
//azimuthList.Add(result);
}
textAzimuth.Text = "";
textDistance.Text = "";
}
double result1;
double result2;
//GeodeticDistanceResult distance = GeometryEngine.DistanceGeodetic(start, destination, LinearUnits.Meters, AngularUnits.Degrees, GeodeticCurveType.NormalSection);
IReadOnlyList <MapPoint> coordinateList = GeometryEngine.MoveGeodetic(mapPoints, distancePoint, LinearUnits.Meters, azimuthPoint, AngularUnits.Degrees, GeodeticCurveType.NormalSection);
GeodeticDistanceResult travel = GeometryEngine.DistanceGeodetic(start, coordinateList[0], LinearUnits.Meters, AngularUnits.Degrees, GeodeticCurveType.NormalSection);
graphic1.Geometry = coordinateList[0];
if (travel.Azimuth1 >= 0)
{
result1 = travel.Azimuth1;
}
else
{
result1 = travel.Azimuth1 + 360;
}
if (travel.Azimuth2 >= 0)
{
result2 = travel.Azimuth2;
}
else
{
result2 = travel.Azimuth2 + 360;
}
textBox.Text = string.Format($"Distance:{travel.Distance} | Azimuth1:{result1} | Azimuth2:{result2} |Initial Point :410175.775805, 552181.881083");
//textBox.Text = string.Format("{0} kilometers", (int)distance);
// Get the points that define the route polyline.
Esri.ArcGISRuntime.Geometry.PointCollection polylinePoints = new Esri.ArcGISRuntime.Geometry.PointCollection(new SpatialReference(3168))
{
(MapPoint)_startLocationGraphic.Geometry,
coordinateList[0]
};
// Create the polyline for the two points.
Polyline routeLine = new Polyline(polylinePoints);
// Densify the polyline to show the geodesic curve.
Esri.ArcGISRuntime.Geometry.Geometry pathGeometry = GeometryEngine.DensifyGeodetic(routeLine, 1, LinearUnits.Kilometers, GeodeticCurveType.Geodesic);
// Apply the curved line to the path graphic.
_pathGraphic.Geometry = pathGeometry;
}
/// <summary>
/// Checks the distance.
/// </summary>
private void CheckDistance()
{
SimpleMarkerSceneSymbol sphereSymbol = new SimpleMarkerSceneSymbol
{
Style = SimpleMarkerSceneSymbolStyle.Sphere,
Color = Color.Red,
Height = 1000,
Width = 100,
Depth = 100,
AnchorPosition = SceneSymbolAnchorPosition.Center
};
MapPoint p1 = new MapPoint(9.386941, 47.666557, SpatialReferences.Wgs84);
MapPoint p2 = new MapPoint(9.172648, 47.666100, SpatialReferences.Wgs84);
GraphicsOverlay symbolsOverlay = new GraphicsOverlay
{
Opacity = 0.5
};
symbolsOverlay.SceneProperties.SurfacePlacement = SurfacePlacement.Draped;
symbolsOverlay.Graphics.Add(new Graphic(p1, sphereSymbol));
symbolsOverlay.Graphics.Add(new Graphic(p2, sphereSymbol));
Polyline p = new Polyline(new[] { p1, p2 });
symbolsOverlay.Graphics.Add(new Graphic(p, new SimpleLineSymbol
{
AntiAlias = true,
Style = SimpleLineSymbolStyle.DashDot,
Width = 4,
Color = Color.Red
}));
//double dDistance = GeometryEngine.Distance( p1, p2 );
var result = GeometryEngine.DistanceGeodetic(p1, p2, LinearUnits.Meters, AngularUnits.Degrees, GeodeticCurveType.Geodesic);
uint iPositionDistanceMeter = 500;
Geometry g = GeometryEngine.DensifyGeodetic(p, iPositionDistanceMeter, LinearUnits.Meters);
SimpleMarkerSymbol marker = new SimpleMarkerSymbol
{
Style = SimpleMarkerSymbolStyle.Circle,
Color = Color.Yellow,
Size = 20
};
foreach (LineSegment x in (g as Polyline).Parts[0])
{
symbolsOverlay.Graphics.Add(new Graphic(x.StartPoint, marker));
}
this.SceneView.GraphicsOverlays.Add(symbolsOverlay);
//-----------------------------------------------------------------
//this.SceneView.SetViewpointAsync( new Viewpoint( p1, 100000 ) );
}