private void buildFlightPath()
{
// Use geometry engine to create a circle around the center of the scene
Geometry circle = GeometryEngine.EllipseGeodesic(new GeodesicEllipseParameters(centerPoint, 1700, 1700));
// Create a path around the perimeter of the circle
routePath = (Polyline)GeometryEngine.Boundary(circle);
// Store the length of the route for use later
routeLength = GeometryEngine.Length(routePath);
}
// Calculates the geometric boundaries for each test graphic
private void CalculateBoundaries()
{
var lineSymbol = (Esri.ArcGISRuntime.Symbology.Symbol) new SimpleLineSymbol()
{
Color = Colors.Blue, Style = SimpleLineStyle.Solid, Width = 2
};
var pointSymbol = (Esri.ArcGISRuntime.Symbology.Symbol) new SimpleMarkerSymbol()
{
Color = Colors.Blue, Style = SimpleMarkerStyle.Circle, Size = 12
};
foreach (var testGraphic in _testGraphics.Graphics)
{
var boundary = GeometryEngine.Boundary(testGraphic.Geometry);
var graphic = new Graphic(boundary, (boundary.GeometryType == GeometryType.Polyline) ? lineSymbol : pointSymbol);
_boundaryGraphics.Graphics.Add(graphic);
}
}
protected override Task <bool> OnSketchCompleteAsync(ArcGIS.Core.Geometry.Geometry geometry)
{
//Check we only have one feature to extend to
if (MapView.Active.Map.SelectionCount != 1)
{
MessageBox.Show("Please select one polyline or polygon feature to extend to", "Extend");
return(Task.FromResult(true));
}
//Run on MCT
return(QueuedTask.Run(() =>
{
//get selected feature geometry
var selectedFeatures = MapView.Active.Map.GetSelection();
var insp = new Inspector();
insp.Load(selectedFeatures.Keys.First(), selectedFeatures.Values.First());
var selGeom = insp.Shape;
if (!(selGeom.GeometryType == GeometryType.Polygon ||
selGeom.GeometryType == GeometryType.Polyline))
{
MessageBox.Show("Please choose as the selected feature either a polyline or polygon feature to extend to");
return false;
}
//find feature at the click
var clickFeatures = MapView.Active.GetFeatures(geometry);
var featuresOids = clickFeatures[clickFeatures.Keys.First()];
insp.Load(clickFeatures.First().Key, featuresOids.First());
var clickGeom = insp.Shape as Polyline;
if (clickGeom == null)
{
MessageBox.Show("Please select a polyline feature to extend");
return false;
}
//extend the line to the poly?
ArcGIS.Core.Geometry.Polyline extPolyline;
extPolyline = GeometryEngine.Extend(clickGeom, (selGeom.GeometryType == GeometryType.Polygon ? GeometryEngine.Boundary(selGeom) as Polyline : selGeom as Polyline), ExtendFlags.Default);
if (extPolyline == null)
{
MessageBox.Show(string.Format("Unable to extend the clicked {0} to the selected {1}",
clickGeom.GeometryType, selGeom.GeometryType));
return false;
}
//set the new geometry back on the feature
insp.Shape = extPolyline;
//create and execute the edit operation
var op = new EditOperation();
op.Name = "Extend";
op.SelectModifiedFeatures = false;
op.SelectNewFeatures = false;
op.Modify(insp);
return op.Execute();
}));
}