private Geometry CreatePolyline()
{
if (Point1 == null || Point2 == null)
{
return(null);
}
CurveType curveType = DeriveCurveType(LineType);
LinearUnit lu = DeriveUnit(LineDistanceType);
try
{
// create line
var polyline = QueuedTask.Run(() =>
{
var segment = LineBuilder.CreateLineSegment(Point1, Point2);
return(PolylineBuilder.CreatePolyline(segment));
}).Result;
Geometry newline = GeometryEngine.GeodeticDensifyByLength(polyline, 0, lu, curveType);
AddGraphicToMap(newline);
ResetPoints();
return(newline as Geometry);
}
catch (Exception ex)
{
// do nothing
return(null);
}
}
internal async Task UpdateFeedbackWithGeoLine(LineSegment segment, CurveType type, LinearUnit lu)
{
if (Point1 == null || segment == null)
{
return;
}
var polyline = await QueuedTask.Run(() =>
{
return(PolylineBuilder.CreatePolyline(segment));
});
ClearTempGraphics();
Geometry newline = GeometryEngine.GeodeticDensifyByLength(polyline, 0, lu, type);
await AddGraphicToMap(Point1, ColorFactory.GreenRGB, true, 5.0);
await AddGraphicToMap(newline, ColorFactory.GreyRGB, true);
}
/// <summary>
/// Method to draw the radials inside the range rings
/// Must have at least 1 radial
/// All radials are drawn from the center point to the farthest ring
/// </summary>
private void DrawRadials()
{
// must have at least 1
if (NumberOfRadials < 1)
{
return;
}
double azimuth = 0.0;
double interval = 360.0 / NumberOfRadials;
double radialLength = 0.0;
if (IsInteractive)
{
radialLength = maxDistance;
}
else
{
radialLength = Distance * NumberOfRings;
}
try
{
// for each radial, draw from center point
for (int x = 0; x < NumberOfRadials; x++)
{
var polyline = QueuedTask.Run(() =>
{
MapPoint movedMP = null;
var mpList = new List <MapPoint>()
{
Point1
};
// get point 2
var results = GeometryEngine.GeodeticMove(mpList, MapView.Active.Map.SpatialReference, radialLength, GetLinearUnit(LineDistanceType), GetAzimuthAsRadians(azimuth), GetCurveType());
// update feedback
//UpdateFeedback();
foreach (var mp in results)
{
movedMP = mp;
}
if (movedMP != null)
{
var segment = LineBuilder.CreateLineSegment(Point1, movedMP);
return(PolylineBuilder.CreatePolyline(segment));
}
else
{
return(null);
}
}).Result;
Geometry newline = GeometryEngine.GeodeticDensifyByLength(polyline, 0, LinearUnit.Meters, CurveType.Loxodrome);
if (newline != null)
{
AddGraphicToMap(newline);
}
azimuth += interval;
}
}
catch (Exception ex)
{
Console.WriteLine(ex);
}
}