private async Task UpdateGeometry(MapPoint point)
{
if (_selectedFeature.Geometry is Polyline line)
{
// Get the nearest point on the selected line.
ProximityResult nearestVertex = GeometryEngine.NearestVertex(line, point);
// Create a new polyline.
PolylineBuilder polylineBuilder = new PolylineBuilder(line);
Part part = polylineBuilder.Parts[nearestVertex.PartIndex];
// Replace the nearest point with the new point.
part.SetPoint(nearestVertex.PointIndex, point);
// Update the geometry of the feature.
_selectedFeature.Geometry = GeometryEngine.Project(polylineBuilder.ToGeometry(), _selectedFeature.Geometry.SpatialReference);
await _selectedFeature.FeatureTable.UpdateFeatureAsync(_selectedFeature);
}
else if (_selectedFeature.Geometry is MapPoint)
{
// Update the geometry of the feature.
_selectedFeature.Geometry = point;
await _selectedFeature.FeatureTable.UpdateFeatureAsync(_selectedFeature);
}
// Clear the selection.
(_selectedFeature.FeatureTable.Layer as FeatureLayer).ClearSelection();
_selectedFeature = null;
}
/// <summary>
/// Called when the OnToolMouseDown event is handled. Allows the opportunity to perform asynchronous operations corresponding to the event.
/// </summary>
protected override Task HandleMouseDownAsync(MapViewMouseButtonEventArgs e)
{
//Get the instance of the ViewModel
var vm = OverlayEmbeddableControl as EmbeddedControlViewModel;
if (vm == null)
{
return(Task.FromResult(0));
}
//Get the map coordinates from the click point and set the property on the ViewModel.
return(QueuedTask.Run(() =>
{
var mapPoint = ActiveMapView.ClientToMap(e.ClientPoint);
var coords = GeometryEngine.Project(mapPoint, SpatialReferences.WGS84) as MapPoint;
if (coords == null)
{
return;
}
var sb = new StringBuilder();
sb.AppendLine($"X: {coords.X:0.000}");
sb.Append($"Y: {coords.Y:0.000}");
if (coords.HasZ)
{
sb.AppendLine();
sb.Append($"Z: {coords.Z:0.000}");
}
vm.Text = sb.ToString();
}));
}
private async void MyMapView_MouseMove(object sender, System.Windows.Input.MouseEventArgs e)
{
if (MyMapView != null)
{
Point screenPoint = e.GetPosition(MyMapView);
MapPoint mapPoint = MyMapView.ScreenToLocation(screenPoint);
if (mapPoint != null)
{
// point = GetDesiredElevationLocation();
double result = await sceneSurface.GetElevationAsync(mapPoint);
if (MyMapView.IsWrapAroundEnabled)
{
mapPoint = GeometryEngine.Project(mapPoint, SpatialReferences.Wgs84) as MapPoint;
textBox.Text = String.Format("x: {0}, y: {1} | Lat:{2},Lon:{3} | Scale:{4} | Elevation : {5} m", screenPoint.X, screenPoint.Y, Math.Round(mapPoint.Y, 6), Math.Round(mapPoint.X, 6), MyMapView.MapScale, result);
}
}
else
{
return;
}
}
}
private List <Graphic> GenerateGraphics(Diamond14EntityLine line, string type, Color color)
{
var result = new List <Graphic>();
var lineBuilder = new PolylineBuilder(SpatialReferences.WebMercator);
foreach (var point in line.Items)
{
if (point.IsValid())
{
var mapPointWgs84 = new MapPoint(point.Longitude, point.Latitude, SpatialReferences.Wgs84);
var mapPoint = GeometryEngine.Project(mapPointWgs84, SpatialReferences.WebMercator) as MapPoint;
lineBuilder.AddPoint(mapPoint);
}
}
var geometry = lineBuilder.ToGeometry();
var resultLine = new Graphic
{
Geometry = geometry,
Symbol = new SimpleLineSymbol
{
Color = color,
Width = line.Width
}
};
resultLine.Attributes[Diamond14Attributes.LineValue] = line.LabelValue?.ToString() ?? string.Empty;
resultLine.Attributes[Diamond14Attributes.LineType] = type;
result.Add(resultLine);
return(result);
}
private void MyMapView_MapViewTapped(object sender, MapViewInputEventArgs e)
{
var normalizedPoint = GeometryEngine.NormalizeCentralMeridian(e.Location);
var projectedCenter = GeometryEngine.Project(normalizedPoint, SpatialReferences.Wgs84) as MapPoint;
_clickOverlay.DataContext = projectedCenter;
}
/// <summary>
/// Called when the OnToolMouseDown event is handled. Allows the opportunity to perform asynchronous operations corresponding to the event.
/// </summary>
protected override Task HandleMouseDownAsync(MapViewMouseButtonEventArgs e)
{
//Get the instance of the ViewModel
var symbolDockPaneViewModel = FrameworkApplication.DockPaneManager.Find("ProSymbolEditor_MilitarySymbolDockpane") as MilitarySymbolDockpaneViewModel;
if (symbolDockPaneViewModel == null)
{
return(Task.FromResult(0));
}
//Get the map coordinates from the click point and set the property on the ViewModel.
return(QueuedTask.Run(() =>
{
var tempMapPoint = MapView.Active.ClientToMap(e.ClientPoint);
try
{
// for now we will always project to WGS84
MapPoint projectedMapPoint = GeometryEngine.Project(tempMapPoint, SpatialReferences.WGS84) as MapPoint;
//Create a point with a z value, since the mil spec feature classes have z enabled (TODO: other way to do this?)
symbolDockPaneViewModel.MapGeometry = MapPointBuilder.CreateMapPoint(projectedMapPoint.X, projectedMapPoint.Y, 0, projectedMapPoint.SpatialReference);
symbolDockPaneViewModel.MapPointCoordinatesString = string.Format("{0:0.0####} {1:0.0####}", tempMapPoint.Y, tempMapPoint.X);
}
catch (Exception exception)
{
System.Console.WriteLine(exception.Message);
}
}));
}
private void Initialize()
{
// Create a point geometry in NYC in WGS84.
MapPoint startingPoint = new MapPoint(-73.984513, 40.748469, SpatialReferences.Wgs84);
// Update the UI with the initial coordinates.
_beforeLabel.Text = $"Before - x: {startingPoint.X}, y: {startingPoint.Y}";
// Create a geographic transformation step for transform WKID 108055, WGS_1984_To_MSK_1942.
GeographicTransformationStep geoStep = new GeographicTransformationStep(108055);
// Create the transformation.
GeographicTransformation geoTransform = new GeographicTransformation(geoStep);
// Project to a coordinate system used in New York, NAD_1983_HARN_StatePlane_New_York_Central_FIPS_3102.
MapPoint afterPoint = (MapPoint)GeometryEngine.Project(startingPoint, SpatialReference.Create(2829), geoTransform);
// Update the UI with the projected coordinates.
_afterLabel.Text = $"After (specific) - x: {afterPoint.X}, y: {afterPoint.Y}";
// Perform the same projection without specified transformation.
MapPoint unspecifiedTransformPoint = (MapPoint)GeometryEngine.Project(startingPoint, SpatialReference.Create(2829));
// Update the UI with the projection done without specific transform for comparison purposes.
_nonSpecificLabel.Text = $"After (non-specific) - x: {unspecifiedTransformPoint.X}, y: {unspecifiedTransformPoint.Y}";
}
public override async void MapViewTapped(MapView mapView, MapViewInputEventArgs e, bool drawing)
{
if (!drawing)
{
var graphic = await GraphicsLayer.HitTestAsync(mapView, e.Position);
if (graphic != null)
{
OnItemTapped(int.Parse($"{graphic.Attributes[CURR_GEO]}"));
}
return;
}
MapPoint newPoint = (MapPoint)GeometryEngine.Project(e.Location, SpatialReferences.Wgs84);
if (_drawPointList.Count == 0)
{
AddGraphic(newPoint, DRAFT, MapShapeLayer.GetSymbol(GeoMarkerType.Point, GeoStatus.Hilight));
}
else
{
Polyline line = new Polyline(new MapPoint[] { _drawPointList.Last(), newPoint });
AddGraphic(line, DRAFT, MapShapeLayer.GetSymbol(GeoMarkerType.Line, GeoStatus.Hilight));
}
_drawPointList.Add(newPoint);
}
private void MyMapViewOnGeoViewTapped(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);
ResultsLabel.Text = $"{(int)distance} kilometers";
}
// Intersects feature geometries with a user defined polygon.
private async void IntersectButton_Click(object sender, RoutedEventArgs e)
{
try
{
_resultsOverlay.Graphics.Clear();
// wait for user to draw a polygon
Polygon userpoly = await MyMapView.Editor.RequestShapeAsync(DrawShape.Polygon) as Polygon;
Polygon poly = GeometryEngine.NormalizeCentralMeridian(userpoly) as Polygon;
// get intersecting features from the feature layer
SpatialQueryFilter filter = new SpatialQueryFilter();
filter.Geometry = GeometryEngine.Project(poly, _statesLayer.FeatureTable.SpatialReference);
filter.SpatialRelationship = SpatialRelationship.Intersects;
filter.MaximumRows = 52;
var stateFeatures = await _statesLayer.FeatureTable.QueryAsync(filter);
// Intersect the feature geometries and add to graphics layer
var states = stateFeatures.Select(feature => feature.Geometry);
var intersectGraphics = states
.Select(state => GeometryEngine.Intersection(state, poly))
.Select(geo => new Graphic(geo, _fillSymbol));
_resultsOverlay.Graphics.AddRange(intersectGraphics);
}
catch (Exception ex)
{
MessageBox.Show("Intersection Error: " + ex.Message, "Intersection Sample");
}
}
private void MyMapViewOnGeoViewTapped_Area(object sender, GeoViewInputEventArgs geoViewInputEventArgs)
{
// Get the tapped point, projected to WGS84.
MapPoint destination = (MapPoint)GeometryEngine.Project(geoViewInputEventArgs.Location, SpatialReferences.Wgs84);
// 点集（mapPoints） ——记得清空
mapPoints.Add(destination);
int len = mapPoints.Count();
Esri.ArcGISRuntime.Geometry.PointCollection polygonPoints;
Esri.ArcGISRuntime.Geometry.Geometry areaGeometry;
Esri.ArcGISRuntime.Geometry.Polygon routeArea;
if (len > 2)
{
polygonPoints = new Esri.ArcGISRuntime.Geometry.PointCollection(SpatialReferences.Wgs84)
{
mapPoints[len - 3],
mapPoints[len - 2],
destination
};
routeArea = new Esri.ArcGISRuntime.Geometry.Polygon(polygonPoints);
//pathGeometry = GeometryEngine.DensifyGeodetic(routeArea, 1, LinearUnits.Kilometers, GeodeticCurveType.Geodesic);
// 这是测地线的长度
//double distance = GeometryEngine.LengthGeodetic(pathGeometry, LinearUnits.Kilometers, GeodeticCurveType.Geodesic);
double area = GeometryEngine.Area(routeArea);
if (areaList.Count() != 0)
{
area += areaList[areaList.Count() - 1];
}
areaList.Add(area);
myMeasureResult.Text += "\n" + area + " (地图默认面积单位)";
}
}
public static async Task <Scene> CreateBerlin(ARSceneView sv)
{
// URL for a scene service of buildings in Brest, France
Uri buildingsService = new Uri("https://tiles.arcgis.com/tiles/P3ePLMYs2RVChkJx/arcgis/rest/services/Buildings_Berlin/SceneServer");
var iml = new ArcGISSceneLayer(buildingsService)
{
Opacity = 1
};
await iml.LoadAsync();
var observerCamera = new Esri.ArcGISRuntime.Mapping.Camera(new MapPoint(-4.49492, 48.3808, 48.2511, SpatialReferences.Wgs84), 344.488, 74.1212, 0.0);
MapPoint center = (MapPoint)GeometryEngine.Project(iml.FullExtent.GetCenter(), SpatialReferences.Wgs84);
observerCamera = new Esri.ArcGISRuntime.Mapping.Camera(center.Y, center.X, 600, 120, 60, 0);
var scene = new Scene(Basemap.CreateImagery());
scene.InitialViewpoint = new Esri.ArcGISRuntime.Mapping.Viewpoint(observerCamera.Location, observerCamera);
scene.OperationalLayers.Add(iml);
scene.BaseSurface = new Surface();
scene.BaseSurface.BackgroundGrid.IsVisible = false;
scene.BaseSurface.ElevationSources.Add(new ArcGISTiledElevationSource(new Uri("https://elevation3d.arcgis.com/arcgis/rest/services/WorldElevation3D/Terrain3D/ImageServer")));
scene.BaseSurface.NavigationConstraint = NavigationConstraint.None;
sv.TranslationFactor = 1000;
return(scene);
}
public FindAnAddress()
{
this.InitializeComponent();
mapView1.Map.InitialExtent = GeometryEngine.Project(new Envelope(-122.554, 37.615, -122.245, 37.884, SpatialReferences.Wgs84),
SpatialReferences.WebMercator) as Envelope;
_candidateGraphicsLayer = mapView1.Map.Layers["CandidateGraphicsLayer"] as GraphicsLayer;
}
private void Initialize()
{
// Create a spatial reference that's suitable for creating planar buffers in north central Texas (State Plane).
SpatialReference statePlaneNorthCentralTexas = new SpatialReference(32038);
// Define a polygon that represents the valid area of use for the spatial reference.
// This information is available at https://developers.arcgis.com/net/latest/wpf/guide/pdf/projected_coordinate_systems_rt100_3_0.pdf
List <MapPoint> spatialReferenceExtentCoords = new List <MapPoint>
{
new MapPoint(-103.070, 31.720, SpatialReferences.Wgs84),
new MapPoint(-103.070, 34.580, SpatialReferences.Wgs84),
new MapPoint(-94.000, 34.580, SpatialReferences.Wgs84),
new MapPoint(-94.00, 31.720, SpatialReferences.Wgs84)
};
_spatialReferenceArea = new Polygon(spatialReferenceExtentCoords);
_spatialReferenceArea = GeometryEngine.Project(_spatialReferenceArea, statePlaneNorthCentralTexas) as Polygon;
// Create a map that uses the North Central Texas state plane spatial reference.
Map bufferMap = new Map(statePlaneNorthCentralTexas);
// Add some base layers (counties, cities, and highways).
Uri usaLayerSource = new Uri("https://sampleserver6.arcgisonline.com/arcgis/rest/services/USA/MapServer");
ArcGISMapImageLayer usaLayer = new ArcGISMapImageLayer(usaLayerSource);
bufferMap.Basemap.BaseLayers.Add(usaLayer);
// Use a new EnvelopeBuilder to expand the spatial reference extent 120%.
EnvelopeBuilder envBuilder = new EnvelopeBuilder(_spatialReferenceArea.Extent);
envBuilder.Expand(1.2);
// Set the map's initial extent to the expanded envelope.
Envelope startingEnvelope = envBuilder.ToGeometry();
bufferMap.InitialViewpoint = new Viewpoint(startingEnvelope);
// Assign the map to the MapView.
_myMapView.Map = bufferMap;
// Create a graphics overlay to show the buffer polygon graphics.
GraphicsOverlay bufferGraphicsOverlay = new GraphicsOverlay
{
// Give the overlay an ID so it can be found later.
Id = "buffers"
};
// Create a graphic to show the spatial reference's valid extent (envelope) with a dashed red line.
SimpleLineSymbol lineSymbol = new SimpleLineSymbol(SimpleLineSymbolStyle.Dash, Color.Red, 5);
Graphic spatialReferenceExtentGraphic = new Graphic(_spatialReferenceArea, lineSymbol);
// Add the graphic to a new overlay.
GraphicsOverlay spatialReferenceGraphicsOverlay = new GraphicsOverlay();
spatialReferenceGraphicsOverlay.Graphics.Add(spatialReferenceExtentGraphic);
// Add the graphics overlays to the MapView.
_myMapView.GraphicsOverlays.Add(bufferGraphicsOverlay);
_myMapView.GraphicsOverlays.Add(spatialReferenceGraphicsOverlay);
}
private async void Initialize()
{
// Create a new Scene with an imagery basemap.
Scene scene = new Scene(Basemap.CreateImagery());
// Add a base surface with elevation data.
Surface elevationSurface = new Surface();
Uri elevationService = new Uri("https://elevation3d.arcgis.com/arcgis/rest/services/WorldElevation3D/Terrain3D/ImageServer");
elevationSurface.ElevationSources.Add(new ArcGISTiledElevationSource(elevationService));
scene.BaseSurface = elevationSurface;
// Add a scene layer.
Uri buildingsService = new Uri("https://tiles.arcgis.com/tiles/P3ePLMYs2RVChkJx/arcgis/rest/services/Buildings_Berlin/SceneServer");
ArcGISSceneLayer buildingsLayer = new ArcGISSceneLayer(buildingsService);
scene.OperationalLayers.Add(buildingsLayer);
// Assign the Scene to the SceneView.
MySceneView.Scene = scene;
// Create a camera with an interesting view.
await buildingsLayer.LoadAsync();
MapPoint center = (MapPoint)GeometryEngine.Project(buildingsLayer.FullExtent.GetCenter(), SpatialReferences.Wgs84);
Camera viewCamera = new Camera(center.Y, center.X, 600, 120, 60, 0);
// Set the viewpoint with the camera.
await MySceneView.SetViewpointCameraAsync(viewCamera);
}
public static AnimationHandle AnimatePointTo(Graphic graphic, MapPoint newLocation, TimeSpan duration, GraphicsOverlay animationLayer = null)
{
if (!(graphic.Geometry is MapPoint))
{
throw new ArgumentException("Graphic must have a point geometry");
}
var start = graphic.Geometry as MapPoint;
if (start.SpatialReference != null && newLocation.SpatialReference != null && !start.SpatialReference.IsEqual(newLocation.SpatialReference))
{
start = GeometryEngine.Project(start, newLocation.SpatialReference) as MapPoint;
}
return(AnimationHandle.StartAnimation(
duration: duration,
onPulse: (normalizedTime) =>
{
double x = (newLocation.X - start.X) * normalizedTime + start.X;
double y = (newLocation.Y - start.Y) * normalizedTime + start.Y;
double z = double.NaN;
bool animateZ = newLocation.HasZ && start.HasZ;
if (animateZ)
{
z = (newLocation.Z - start.Z) * normalizedTime + start.Z;
}
graphic.Geometry = animateZ ? new MapPoint(x, y, z, start.SpatialReference) : new MapPoint(x, y, start.SpatialReference);
},
onStart: null,
onEnd: () => graphic.Geometry = newLocation,
repeat: false,
easing: null // new QuadraticEase() { EasingMode = EasingMode.EaseInOut }
));
}
static Constants()
{
MapPoint minLonLat = new MapPoint(Constants.LonMin, Constants.LatMin, SpatialReferences.Wgs84);
MapPoint maxLonLat = new MapPoint(Constants.LonMax, Constants.LatMax, SpatialReferences.Wgs84);
MapPoint minXY = GeometryEngine.Project(minLonLat, SpatialReferences.WebMercator) as MapPoint;
MapPoint maxXY = GeometryEngine.Project(maxLonLat, SpatialReferences.WebMercator) as MapPoint;
XMin = minXY.X;
YMin = minXY.Y;
XMax = maxXY.X;
YMax = maxXY.Y;
// make sure the snapshot can be ImageWidth / ImageHeight
if ((maxXY.X - minXY.X) / (maxXY.Y - minXY.Y) > ImageWidth / ImageHeight)
{
double height = (maxXY.X - minXY.X) * ImageHeight / ImageWidth;
YMin -= (height - (maxXY.Y - minXY.Y)) / 2;
YMax += (height - (maxXY.Y - minXY.Y)) / 2;
}
else
{
double width = (maxXY.Y - minXY.Y) * ImageWidth / ImageHeight;
XMin -= (width - (maxXY.X - minXY.X)) / 2;
XMax += (width - (maxXY.X - minXY.X)) / 2;
}
}
// Unions feature geometries with a user defined polygon.
private async void UnionButton_Click(object sender, RoutedEventArgs e)
{
try
{
_resultGraphics.Graphics.Clear();
// wait for user to draw a polygon
var poly = await MyMapView.Editor.RequestShapeAsync(DrawShape.Polygon);
// Take account of WrapAround
var normalizedPoly = GeometryEngine.NormalizeCentralMeridian(poly) as Polygon;
// get intersecting features from the feature layer
SpatialQueryFilter filter = new SpatialQueryFilter();
filter.Geometry = GeometryEngine.Project(normalizedPoly, _statesLayer.FeatureTable.SpatialReference);
filter.SpatialRelationship = SpatialRelationship.Intersects;
filter.MaximumRows = 52;
var stateFeatures = await _statesLayer.FeatureTable.QueryAsync(filter);
// Union the geometries and add to graphics layer
var states = stateFeatures.Select(feature => feature.Geometry);
var unionPolys = states.ToList();
var unionPoly = GeometryEngine.Union(unionPolys);
var unionGraphic = new Graphic(unionPoly, _fillSymbol);
_resultGraphics.Graphics.Add(unionGraphic);
}
catch (Exception ex)
{
MessageBox.Show("Union Error: " + ex.Message, "Union Sample");
}
}
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)";
}
}
private void FindTagByPosition(Android.Graphics.PointF position)
{
try
{
if (null != listGraphicsOverlay && listGraphicsOverlay.Count > 0)
{
foreach (var item in listGraphicsOverlay)
{
var pointFind = new MapPoint(position.X, position.Y, mapView.LocationDisplay.Location.Position.SpatialReference);
var simpleMarkerSymbolFind = new SimpleMarkerSymbol(SimpleMarkerSymbolStyle.Circle, Color.Red, 10);
var graphicFind = new Graphic(pointFind, simpleMarkerSymbolFind);
Geometry geometryData = GeometryEngine.Project(item.Value, mapView.LocationDisplay.Location.Position.SpatialReference);
Boolean result = GeometryEngine.Contains(geometryData, graphicFind.Geometry);
Boolean resultIntersect = GeometryEngine.Intersects(geometryData, graphicFind.Geometry);
if (result && resultIntersect)
{
var intent = new Intent(this, typeof(ConsultarTap));
intent.PutExtra("codigoTag", item.Key);
StartActivity(intent);
SetContentView(Resource.Layout.Fragment_ConsultarTap);
}
}
}
}
catch (Exception ex)
{
Log.Info("Error", ex.Message);
throw new System.Exception(ex.Message);
}
}
private async void Initialize()
{
// Add an imagery basemap
MyMapView.Map = new Map(Basemap.CreateImagery());
// Get the file name
String filepath = GetRasterPath();
// Load the raster file
Raster myRasterFile = new Raster(filepath);
// Create the layer
RasterLayer myRasterLayer = new RasterLayer(myRasterFile);
// Load the layer
await myRasterLayer.LoadAsync();
// Convert the layer's extent to the correct spatial reference
Geometry convertedExtent = GeometryEngine.Project(myRasterLayer.FullExtent, SpatialReferences.WebMercator);
// Get the raster's extent in a viewpoint
Viewpoint myFullRasterExtent = new Viewpoint(convertedExtent);
// Set the viewpoint
MyMapView.SetViewpoint(myFullRasterExtent);
// Add the layer to the map
MyMapView.Map.OperationalLayers.Add(myRasterLayer);
}
// Calculates a geometric difference between features and user defined geometry
private async void DifferenceButton_Click(object sender, RoutedEventArgs e)
{
try
{
differenceGraphics.Graphics.Clear();
// wait for user to draw difference polygon
var poly = await mapView.Editor.RequestShapeAsync(DrawShape.Polygon);
// Adjust user polygon for backward digitization
poly = GeometryEngine.Simplify(poly);
// get intersecting features from the feature layer
SpatialQueryFilter filter = new SpatialQueryFilter();
filter.Geometry = GeometryEngine.Project(poly, _statesLayer.FeatureTable.SpatialReference);
filter.SpatialRelationship = SpatialRelationship.Intersects;
filter.MaximumRows = 52;
var stateFeatures = await _statesLayer.FeatureTable.QueryAsync(filter);
// Calc difference between feature geometries and user polygon and add results to graphics layer
var states = stateFeatures.Select(feature => feature.Geometry);
var diffGraphics = states
.Select(state => ((bool)useSymmetricDifference.IsChecked)
? GeometryEngine.SymmetricDifference(state, poly)
: GeometryEngine.Difference(state, poly))
.Select(geo => new Graphic(geo, _fillSymbol));
differenceGraphics.Graphics.AddRange(diffGraphics);
}
catch (Exception ex)
{
MessageBox.Show("Difference Error: " + ex.Message, "Geometry Difference Sample");
}
}
// Cuts feature geometries with a user defined cut polyline.
private async void CutButton_Click(object sender, RoutedEventArgs e)
{
try
{
_resultGraphics.Graphics.Clear();
// wait for user to draw cut line
var cutLine = await mapView.Editor.RequestShapeAsync(DrawShape.Polyline, _cutLineSymbol) as Polyline;
// get intersecting features from the feature layer
SpatialQueryFilter filter = new SpatialQueryFilter();
filter.Geometry = GeometryEngine.Project(cutLine, _statesLayer.FeatureTable.SpatialReference);
filter.SpatialRelationship = SpatialRelationship.Crosses;
filter.MaximumRows = 52;
var stateFeatures = await _statesLayer.FeatureTable.QueryAsync(filter);
// Cut the feature geometries and add to graphics layer
var states = stateFeatures.Select(feature => feature.Geometry);
var cutGraphics = states
.Where(geo => !GeometryEngine.Within(cutLine, geo))
.SelectMany(state => GeometryEngine.Cut(state, cutLine))
.Select(geo => new Graphic(geo, _cutFillSymbol));
_resultGraphics.Graphics.AddRange(cutGraphics);
}
catch (TaskCanceledException)
{
}
catch (Exception ex)
{
var _ = new MessageDialog("Cut Error: " + ex.Message, "Sample Error").ShowAsync();
}
}
// Clips feature geometries with a user defined clipping rectangle.
private async void ClipButton_Click(object sender, RoutedEventArgs e)
{
try
{
_clippedGraphicsOverlay.Graphics.Clear();
// wait for user to draw clip rect
var rect = await MyMapView.Editor.RequestShapeAsync(DrawShape.Rectangle);
Polygon polygon = GeometryEngine.NormalizeCentralMeridian(rect) as Polygon;
// get intersecting features from the feature layer
SpatialQueryFilter filter = new SpatialQueryFilter();
filter.Geometry = GeometryEngine.Project(polygon, _statesLayer.FeatureTable.SpatialReference);
filter.SpatialRelationship = SpatialRelationship.Intersects;
filter.MaximumRows = 52;
var stateFeatures = await _statesLayer.FeatureTable.QueryAsync(filter);
// Clip the feature geometries and add to graphics layer
var states = stateFeatures.Select(feature => feature.Geometry);
var clipGraphics = states
.Select(state => GeometryEngine.Clip(state, polygon.Extent))
.Select(geo => new Graphic(geo, _clipSymbol));
_clippedGraphicsOverlay.Graphics.AddRange(clipGraphics);
}
catch (TaskCanceledException) { }
catch (Exception ex)
{
MessageBox.Show("Clip Error: " + ex.Message, "Clip Geometry");
}
}
private void OnView_Tapped(object sender, Esri.ArcGISRuntime.UI.GeoViewInputEventArgs e)
{
MapPoint geoPoint = getGeoPoint(e);
geoPoint = (MapPoint)GeometryEngine.Project(geoPoint, SpatialReference.Create(3857));
Polygon buffer = (Polygon)GeometryEngine.Buffer(geoPoint, 1000.0);
GraphicCollection graphics = (threeD ? bufferAndQuerySceneGraphics : bufferAndQueryMapGraphics).Graphics;
graphics.Clear();
graphics.Add(new Graphic(buffer, BUFFER_SYMBOL));
graphics.Add(new Graphic(geoPoint, CLICK_SYMBOL));
Esri.ArcGISRuntime.Data.QueryParameters query = new Esri.ArcGISRuntime.Data.QueryParameters();
query.Geometry = buffer;
LayerCollection operationalLayers;
if (threeD)
{
operationalLayers = sceneView.Scene.OperationalLayers;
}
else
{
operationalLayers = mapView.Map.OperationalLayers;
}
foreach (Layer layer in operationalLayers)
{
((FeatureLayer)layer).SelectFeaturesAsync(query, SelectionMode.New);
}
}
private async void Initialize()
{
// Create new Scene.
Scene myScene = new Scene {
Basemap = Basemap.CreateImagery()
};
// Create and add an elevation source for the Scene.
ArcGISTiledElevationSource elevationSrc = new ArcGISTiledElevationSource(_elevationSourceUrl);
myScene.BaseSurface.ElevationSources.Add(elevationSrc);
// Create new scene layer from the URL.
ArcGISSceneLayer sceneLayer = new ArcGISSceneLayer(_serviceUri);
// Add created layer to the operational layers collection.
myScene.OperationalLayers.Add(sceneLayer);
// Load the layer.
await sceneLayer.LoadAsync();
// Get the center of the scene layer.
MapPoint center = (MapPoint)GeometryEngine.Project(sceneLayer.FullExtent.GetCenter(), SpatialReferences.Wgs84);
// Create a camera with coordinates showing layer data.
Camera camera = new Camera(center.Y, center.X, 225, 220, 80, 0);
// Assign the Scene to the SceneView.
MySceneView.Scene = myScene;
// Set view point of scene view using camera.
await MySceneView.SetViewpointCameraAsync(camera);
}
//private void GraphicsLayer_PointerEntered_1(object sender, GraphicPointerRoutedEventArgs e)
//{
// _mapTipGraphic = e.Graphic;
// RenderMapTip();
//}
private void RenderMapTip()
{
MapPoint anchor = _mapTipGraphic.Geometry as MapPoint;
if (mapView1.SpatialReference != null)
{
if (_mapTipGraphic != null)
{
mapView1tip.DataContext = _mapTipGraphic.Attributes;
}
//Convert anchor point to the spatial reference of the map
var mp = GeometryEngine.Project(anchor, mapView1.SpatialReference) as MapPoint;
//Convert anchor point to screen coordinate
var screen = mapView1.LocationToScreen(mp);
if (screen.X >= 0 && screen.Y >= 0 &&
screen.X < mapView1.ActualWidth && screen.Y < mapView1.ActualHeight)
{
//Update location of map
MapTipTranslate.X = screen.X;
MapTipTranslate.Y = screen.Y - mapView1tip.ActualHeight;
mapView1tip.Visibility = Windows.UI.Xaml.Visibility.Visible;
}
else //Anchor is outside the display so close mapView1tip
{
mapView1tip.Visibility = Windows.UI.Xaml.Visibility.Collapsed;
}
}
}
public async void SearchByMeterID(string searchString)
{
SimpleLineSymbol sls = new SimpleLineSymbol()
{
Color = System.Windows.Media.Colors.Red,
Style = SimpleLineStyle.Solid,
Width = 2
};
// get the layer and table
FeatureLayer featureLayer = this.mapView.Map.Layers[1] as FeatureLayer;
GeodatabaseFeatureTable table = featureLayer.FeatureTable as GeodatabaseFeatureTable;
// Define an attribute query
var filter = new Esri.ArcGISRuntime.Data.QueryFilter();
filter.WhereClause = "POST_ID = '" + searchString + "'"; // 666-13080
// Execute the query and await results
IEnumerable <Feature> features = await table.QueryAsync(filter);
// iterate the feature. Should be one in this case.
foreach (Feature feature in features)
{
// Get the MapPoint, Project to Mercator so that we are working in meters
MapPoint mapPoint = feature.Geometry as MapPoint;
MapPoint pointMercator = GeometryEngine.Project(mapPoint, SpatialReferences.WebMercator) as MapPoint;
Geometry polygon = GeometryEngine.Buffer(pointMercator, 200);
// Re-project the polygon to WGS84 so that we can query against the layer which is in WGS84
Polygon polygonWgs84 = GeometryEngine.Project(polygon, SpatialReferences.Wgs84) as Polygon;
// add the circle (buffer)
Graphic graphic = new Graphic();
graphic.Symbol = sls;
graphic.Geometry = polygonWgs84;
this.graphicsLayer.Graphics.Add(graphic);
// Make sure the table supports querying
if (table.SupportsQuery)
{
// setup the query to use the polygon that's in WGS84
var query = new Esri.ArcGISRuntime.Data.SpatialQueryFilter();
query.Geometry = polygonWgs84 as Geometry;
query.SpatialRelationship = SpatialRelationship.Intersects;
var result = await table.QueryAsync(query);
int i = 1;
// Loop through query results
foreach (Esri.ArcGISRuntime.Data.Feature f in result)
{
// do something with results
System.Diagnostics.Debug.WriteLine(i.ToString());
i++;
}
}
}
}
private MapPoint GetLocation(Envelope viewpointExtent)
{
double x = viewpointExtent.XMin + (_random.NextDouble() * viewpointExtent.Width);
double y = viewpointExtent.YMin + (_random.NextDouble() * viewpointExtent.Height);
var point = new MapPoint(x, y, viewpointExtent.SpatialReference);
return((MapPoint)GeometryEngine.Project(point, SpatialReferences.Wgs84));
}
public async void Initialize()
{
// Create a new scene with basemap
var myScene = new Scene(Basemap.CreateImageryWithLabels());
// create an elevation source
ArcGISTiledElevationSource elevationSrc = new ArcGISTiledElevationSource(_elevationSourceUrl);
myScene.BaseSurface.ElevationSources.Add(elevationSrc);
// create additional layer
ArcGISSceneLayer sceneLayer = new ArcGISSceneLayer(_serviceUri);
myScene.OperationalLayers.Add(sceneLayer);
// Set the surface placement mode for the overlay.
graphicsOverlay.SceneProperties.SurfacePlacement = SurfacePlacement.Relative;
// create a red "X" marker symbol
SimpleMarkerSceneSymbol car = new SimpleMarkerSceneSymbol(SimpleMarkerSceneSymbolStyle.Cube, Color.Red, 20, 20, 20, SceneSymbolAnchorPosition.Bottom);
// create a new graphic; assign the point and the symbol in the constructor
try
{
// Load the layer.
await sceneLayer.LoadAsync();
// Get the center of the scene layer.
MapPoint center = (MapPoint)GeometryEngine.Project(sceneLayer.FullExtent.GetCenter(), SpatialReferences.Wgs84);
Console.WriteLine(center.ToString());
var newPoint = new MapPoint(_positionPublisher.getX(), _positionPublisher.getY(), 0, SpatialReferences.Wgs84);
graphic.Geometry = newPoint;
graphic.Symbol = car;
graphicsOverlay.Graphics.Add(graphic);
MainWindow.View.Map3D.GraphicsOverlays.Add(graphicsOverlay);
// Assign the Scene to the SceneView.
MainWindow.View.Map3D.Scene = myScene;
//// CAMERA ANGLE ////
// Create a camera with coordinates showing layer data.
// Camera camera = new Camera(center.Y, center.X, 225, 220, 80, 0);
// Set view point of scene view using camera.
//await Map3D.SetViewpointCameraAsync(camera);
// create an OrbitGeoElementCameraController, pass in the target graphic and initial camera distance
var orbitGraphicController = new OrbitGeoElementCameraController(graphic, 1000);
MainWindow.View.Map3D.CameraController = orbitGraphicController;
}
catch (Exception e)
{
MessageBox.Show(e.ToString(), "Error");
}
}
