private void ConstructGeoCircle()
{
if (Point1 == null || double.IsNaN(Distance))
{
return;
}
var param = new GeodesicEllipseParameter();
param.Center = new Coordinate2D(Point1);
param.AxisDirection = 0.0;
param.LinearUnit = GetLinearUnit(LineDistanceType);
param.OutGeometryType = GeometryType.Polyline;
param.SemiAxis1Length = Distance;
param.SemiAxis2Length = Distance;
param.VertexCount = VertexCount;
maxDistance = Math.Max(maxDistance, Distance);
var geom = GeometryEngine.Instance.GeodesicEllipse(param, MapView.Active.Map.SpatialReference);
// Hold onto the attributes in case user saves graphics to file later
RangeAttributes rangeAttributes = new RangeAttributes()
{
mapPoint = Point1, numRings = NumberOfRings,
distance = Distance,
centerx = Point1.X, centery = Point1.Y,
distanceunit = LineDistanceType.ToString(), ringorradial = "Ring"
};
CreateRangeRingOrRadialFeature(geom, rangeAttributes);
}
private void UpdateFeedbackWithGeoCircle()
{
if (Point1 == null || double.IsNaN(Distance) || Distance <= 0.0)
{
return;
}
var param = new GeodesicEllipseParameter();
param.Center = new Coordinate2D(Point1);
param.AxisDirection = 0.0;
param.LinearUnit = GetLinearUnit(LineDistanceType);
param.OutGeometryType = GeometryType.Polyline;
param.SemiAxis1Length = Distance;
param.SemiAxis2Length = Distance;
param.VertexCount = VertexCount;
var geom = GeometryEngine.Instance.GeodesicEllipse(param, MapView.Active.Map.SpatialReference);
ClearTempGraphics();
// Hold onto the attributes in case user saves graphics to file later
RangeAttributes rangeAttributes = new RangeAttributes()
{
mapPoint = Point1,
numRings = NumberOfRings, distance = Distance,
centerx = Point1.X, centery = Point1.Y,
distanceunit = LineDistanceType.ToString()
};
AddGraphicToMap(Point1, ColorFactory.Instance.GreenRGB, null, true, 5.0);
AddGraphicToMap(geom, ColorFactory.Instance.GreyRGB, rangeAttributes, true);
}
/// <summary>
/// Method used to draw the rings at the desired interval
/// Rings are constructed as geodetic circles
/// </summary>
private Geometry DrawRings()
{
if (Point1 == null || double.IsNaN(Distance))
{
return(null);
}
double radius = 0.0;
try
{
Geometry geom = null;
for (int x = 0; x < numberOfRings; x++)
{
// set the current radius
radius += Distance;
var param = new GeodesicEllipseParameter();
param.Center = new Coordinate2D(Point1);
param.AxisDirection = 0.0;
param.LinearUnit = GetLinearUnit(LineDistanceType);
param.OutGeometryType = GeometryType.Polyline;
param.SemiAxis1Length = radius;
param.SemiAxis2Length = radius;
param.VertexCount = VertexCount;
geom = GeometryEngine.Instance.GeodesicEllipse(param, MapView.Active.Map.SpatialReference);
// Hold onto the attributes in case user saves graphics to file later
RangeAttributes rangeAttributes = new RangeAttributes()
{
mapPoint = Point1, numRings = numberOfRings, distance = radius,
centerx = Point1.X, centery = Point1.Y,
distanceunit = LineDistanceType.ToString(), ringorradial = "Ring"
};
CreateRangeRingOrRadialFeature(geom, rangeAttributes);
}
return(geom);
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex);
return(null);
}
}
private Geometry CreatePolyline()
{
if (Point1 == null || Point2 == null)
{
return(null);
}
GeodeticCurveType curveType = DeriveCurveType(LineType);
LinearUnit lu = DeriveUnit(LineDistanceType);
try
{
// create line
var polyline = QueuedTask.Run(() =>
{
var point2Proj = GeometryEngine.Instance.Project(Point2, Point1.SpatialReference);
var segment = LineBuilder.CreateLineSegment(Point1, (MapPoint)point2Proj);
return(PolylineBuilder.CreatePolyline(segment));
}).Result;
Geometry newline = GeometryEngine.Instance.GeodeticDensifyByLength(polyline, 0, lu, curveType);
// Hold onto the attributes in case user saves graphics to file later
LineAttributes lineAttributes = new LineAttributes()
{
mapPoint1 = Point1, mapPoint2 = Point2,
distance = distance, angle = (double)azimuth,
angleunit = LineAzimuthType.ToString(),
distanceunit = LineDistanceType.ToString(),
originx = Point1.X, originy = Point1.Y,
destinationx = Point2.X, destinationy = Point2.Y
};
CreateLineFeature(newline, lineAttributes);
ResetPoints();
return((Geometry)newline);
}
catch (Exception ex)
{
// do nothing
System.Diagnostics.Debug.WriteLine(ex.Message);
return(null);
}
}
private Geometry DrawEllipse()
{
if (Point1 == null || double.IsNaN(MajorAxisDistance) || double.IsNaN(MinorAxisDistance))
{
return(null);
}
try
{
var param = new GeodesicEllipseParameter();
param.Center = new Coordinate2D(Point1);
param.AxisDirection = GetRadiansFrom360Degrees(GetAzimuthAsDegrees());
param.LinearUnit = GetLinearUnit(LineDistanceType);
param.OutGeometryType = GeometryType.Polygon;
param.SemiAxis1Length = MajorAxisDistance;
param.SemiAxis2Length = MinorAxisDistance;
param.VertexCount = VertexCount;
var geom = GeometryEngine.Instance.GeodesicEllipse(param, MapView.Active.Map.SpatialReference);
// Hold onto the attributes in case user saves graphics to file later
EllipseAttributes ellipseAttributes = new EllipseAttributes()
{
mapPoint = Point1, minorAxis = MinorAxisDistance,
majorAxis = MajorAxisDistance, angle = Azimuth,
angleunit = AzimuthType.ToString(), centerx = Point1.X,
centery = Point1.Y, distanceunit = LineDistanceType.ToString()
};
CreateEllipseFeature(geom, ellipseAttributes);
return((Geometry)geom);
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message);
return(null);
}
}
/// <summary>
/// Create a geodetic line
/// </summary>
private IGeometry CreatePolyline()
{
try
{
if (Point1 == null || Point2 == null)
{
return(null);
}
var construct = new Polyline() as IConstructGeodetic;
if (construct == null)
{
return(null);
}
if (srf3 == null)
{
// if you don't use the activator, you will get exceptions
Type srType = Type.GetTypeFromProgID("esriGeometry.SpatialReferenceEnvironment");
srf3 = Activator.CreateInstance(srType) as ISpatialReferenceFactory3;
}
var linearUnit = srf3.CreateUnit((int)esriSRUnitType.esriSRUnit_Meter) as ILinearUnit;
esriGeodeticType type = GetEsriGeodeticType();
IGeometry geo = Point1;
if (LineFromType == LineFromTypes.Points)
{
construct.ConstructGeodeticLineFromPoints(GetEsriGeodeticType(), Point1, Point2, GetLinearUnit(), esriCurveDensifyMethod.esriCurveDensifyByDeviation, -1.0);
}
else
{
Double bearing = 0.0;
if (LineAzimuthType == AzimuthTypes.Mils)
{
bearing = GetAzimuthAsDegrees();
}
else
{
bearing = (double)Azimuth;
}
construct.ConstructGeodeticLineFromDistance(type, Point1, GetLinearUnit(), Distance, bearing, esriCurveDensifyMethod.esriCurveDensifyByDeviation, -1.0);
}
var mxdoc = ArcMap.Application.Document as IMxDocument;
var av = mxdoc.FocusMap as IActiveView;
if (LineFromType == LineFromTypes.Points)
{
UpdateDistance(construct as IGeometry);
UpdateAzimuth(construct as IGeometry);
}
IDictionary <String, System.Object> lineAttributes = new Dictionary <String, System.Object>();
lineAttributes.Add("distance", Distance);
lineAttributes.Add("distanceunit", LineDistanceType.ToString());
lineAttributes.Add("angle", (double)Azimuth);
lineAttributes.Add("angleunit", LineAzimuthType.ToString());
lineAttributes.Add("startx", Point1.X);
lineAttributes.Add("starty", Point1.Y);
lineAttributes.Add("endx", Point2.X);
lineAttributes.Add("endy", Point2.Y);
var color = new RgbColorClass()
{
Red = 255
} as IColor;
AddGraphicToMap(construct as IGeometry, color, attributes: lineAttributes);
if (HasPoint1 && HasPoint2)
{
//Get line distance type
DistanceTypes dtVal = (DistanceTypes)LineDistanceType;
//Get azimuth type
AzimuthTypes atVal = (AzimuthTypes)LineAzimuthType;
//Get mid point of geodetic line
var midPoint = new Point() as IPoint;
((IPolyline)((IGeometry)construct)).QueryPoint(esriSegmentExtension.esriNoExtension, 0.5, false, midPoint);
//Create text symbol using text and midPoint
AddTextToMap(midPoint != null ? midPoint : Point2,
string.Format("{0}:{1} {2}{3}{4}:{5} {6}",
"Distance",
Math.Round(Distance, 2).ToString("N2"),
dtVal.ToString(),
Environment.NewLine,
"Angle",
Math.Round(azimuth.Value, 2),
atVal.ToString()), (double)Azimuth, LineAzimuthType);
}
ResetPoints();
return(construct as IGeometry);
}
catch (Exception ex)
{
Console.WriteLine(ex);
return(null);
}
}
/// <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.Instance.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 movedMPproj = GeometryEngine.Instance.Project(movedMP, Point1.SpatialReference);
var segment = LineBuilder.CreateLineSegment(Point1, (MapPoint)movedMPproj);
return(PolylineBuilder.CreatePolyline(segment));
}
else
{
return(null);
}
}).Result;
Geometry newline = GeometryEngine.Instance.GeodeticDensifyByLength(polyline, 0, LinearUnit.Meters, GeodeticCurveType.Loxodrome);
if (newline != null)
{
// Hold onto the attributes in case user saves graphics to file later
RangeAttributes rangeAttributes = new RangeAttributes()
{
mapPoint = Point1, numRings = NumberOfRings,
distance = radialLength,
centerx = Point1.X, centery = Point1.Y,
distanceunit = LineDistanceType.ToString(), ringorradial = "Radial"
};
// AddGraphicToMap(newline, rangeAttributes);
CreateRangeRingOrRadialFeature(newline, rangeAttributes);
}
azimuth += interval;
}
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex);
}
}
/// <summary>
/// Create a geodetic line
/// </summary>
private IGeometry CreatePolyline()
{
try
{
if ((Point1 == null) || (Point2 == null))
{
return(null);
}
var construct = (IConstructGeodetic) new Polyline();
if (srf3 == null)
{
// if you don't use the activator, you will get exceptions
Type srType = Type.GetTypeFromProgID("esriGeometry.SpatialReferenceEnvironment");
srf3 = Activator.CreateInstance(srType) as ISpatialReferenceFactory3;
}
if (srf3 == null)
{
return(null);
}
esriGeodeticType type = GetEsriGeodeticType();
if (LineFromType == LineFromTypes.Points)
{
construct.ConstructGeodeticLineFromPoints(GetEsriGeodeticType(), Point1, Point2, GetLinearUnit(), esriCurveDensifyMethod.esriCurveDensifyByDeviation, -1.0);
}
else
{
Double bearing = 0.0;
if (LineAzimuthType == AzimuthTypes.Mils)
{
bearing = GetAzimuthAsDegrees();
}
else
{
bearing = (double)Azimuth;
}
construct.ConstructGeodeticLineFromDistance(type, Point1, GetLinearUnit(), Distance, bearing, esriCurveDensifyMethod.esriCurveDensifyByDeviation, -1.0);
}
if (LineFromType == LineFromTypes.Points)
{
UpdateDistance(construct as IGeometry);
UpdateAzimuth(construct as IGeometry);
}
IDictionary <String, System.Object> lineAttributes = new Dictionary <String, System.Object>();
lineAttributes.Add("distance", Distance);
lineAttributes.Add("distanceunit", LineDistanceType.ToString());
lineAttributes.Add("angle", (double)Azimuth);
lineAttributes.Add("angleunit", LineAzimuthType.ToString());
lineAttributes.Add("startx", Point1.X);
lineAttributes.Add("starty", Point1.Y);
lineAttributes.Add("endx", Point2.X);
lineAttributes.Add("endy", Point2.Y);
var color = new RgbColorClass()
{
Red = 255
} as IColor;
AddGraphicToMap(construct as IGeometry, color, attributes: lineAttributes);
if (HasPoint1 && HasPoint2)
{
if (Point1.SpatialReference != ArcMap.Document.FocusMap.SpatialReference)
{
Point1.Project(ArcMap.Document.FocusMap.SpatialReference);
}
//Get line distance type
DistanceTypes dtVal = (DistanceTypes)LineDistanceType;
//Get azimuth type
AzimuthTypes atVal = (AzimuthTypes)LineAzimuthType;
//Create text symbol using text and Point1
AddTextToMap(Point1, /* Use the start point for label */
string.Format("{0}:{3}{1} {2}{3}{4}:{3}{5} {6}",
"Distance",
Math.Round(Distance, 2).ToString("N2"),
dtVal.ToString(),
Environment.NewLine,
"Angle",
Math.Round(azimuth.Value, 2),
atVal.ToString()), (double)Azimuth, LineAzimuthType, false);
}
ResetPoints();
return(construct as IGeometry);
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex);
return(null);
}
}
/// <summary>
/// Create a geodetic circle
/// </summary>
private IGeometry CreateCircle()
{
if (Point1 == null && Point2 == null)
{
return(null);
}
// This section including UpdateDistance serves to handle Diameter appropriately
var polyLine = new Polyline() as IPolyline;
polyLine.SpatialReference = Point1.SpatialReference;
var ptCol = polyLine as IPointCollection;
ptCol.AddPoint(Point1);
ptCol.AddPoint(Point2);
UpdateDistance(polyLine as IGeometry);
try
{
var construct = new Polyline() as IConstructGeodetic;
if (construct != null)
{
construct.ConstructGeodesicCircle(Point1, GetLinearUnit(), Distance, esriCurveDensifyMethod.esriCurveDensifyByAngle, 0.01);
IDictionary <String, System.Object> circleAttributes = new Dictionary <String, System.Object>();
double dist = 0.0;
if (CircleType == CircleFromTypes.Diameter)
{
dist = Distance * 2;
}
else
{
dist = Distance;
}
//circleAttributes.Add("radius", dist);
//circleAttributes.Add("disttype", CircleType.ToString());
//circleAttributes.Add("centerx", Point1.X);
//circleAttributes.Add("centery", Point1.Y);
//circleAttributes.Add("distanceunit", LineDistanceType.ToString());
//var color = new RgbColorClass() { Red = 255 } as IColor;
//this.AddGraphicToMap(construct as IGeometry, color, attributes: circleAttributes);
//Construct a polygon from geodesic polyline
var newPoly = this.PolylineToPolygon((IPolyline)construct);
if (newPoly != null)
{
//Get centroid of polygon
var area = newPoly as IArea;
string unitLabel = "";
int roundingFactor = 0;
// If Distance Calculator is in use, use the unit from the Rate combobox
// to label the circle
if (IsDistanceCalcExpanded)
{
// Select appropriate label and number of decimal places
switch (RateUnit)
{
case DistanceTypes.Feet:
case DistanceTypes.Meters:
case DistanceTypes.Yards:
unitLabel = RateUnit.ToString();
roundingFactor = 0;
break;
case DistanceTypes.Miles:
case DistanceTypes.Kilometers:
unitLabel = RateUnit.ToString();
roundingFactor = 2;
break;
case DistanceTypes.NauticalMile:
unitLabel = "Nautical Miles";
roundingFactor = 2;
break;
default:
break;
}
}
// Else Distance Calculator not in use, use the unit from the Radius / Diameter combobox
// to label the circle
else
{
// Select appropriate number of decimal places
switch (LineDistanceType)
{
case DistanceTypes.Feet:
case DistanceTypes.Meters:
case DistanceTypes.Yards:
unitLabel = RateUnit.ToString();
roundingFactor = 0;
break;
case DistanceTypes.Miles:
case DistanceTypes.Kilometers:
unitLabel = RateUnit.ToString();
roundingFactor = 2;
break;
case DistanceTypes.NauticalMile:
unitLabel = "Nautical Miles";
roundingFactor = 2;
break;
default:
break;
}
DistanceTypes dtVal = (DistanceTypes)LineDistanceType;
unitLabel = dtVal.ToString();
}
double convertedDistance = Distance;
// Distance is storing radius not diameter, so we have to double it to get the correct value
// for the label
// Only use Diameter when Distance Calculator is not in use
if (!IsDistanceCalcExpanded && circleType == CircleFromTypes.Diameter)
{
convertedDistance *= 2;
}
string circleTypeLabel = circleType.ToString();
string distanceLabel = "";
// Use the unit from Rate combobox if Distance Calculator is expanded
if (IsDistanceCalcExpanded)
{
convertedDistance = ConvertFromTo(LineDistanceType, RateUnit, convertedDistance);
distanceLabel = (TrimPrecision(convertedDistance, RateUnit, true)).ToString("N" + roundingFactor.ToString());
// Always label with radius when Distance Calculator is expanded
circleTypeLabel = "Radius";
}
else
{
distanceLabel = (TrimPrecision(convertedDistance, LineDistanceType, false)).ToString("N" + roundingFactor.ToString());
}
dist = convertedDistance;
//Add text using centroid point
this.AddTextToMap(area.Centroid, string.Format("{0}:{1} {2}",
circleTypeLabel,
distanceLabel,
unitLabel));
}
circleAttributes.Add("radius", dist);
circleAttributes.Add("disttype", CircleType.ToString());
circleAttributes.Add("centerx", Point1.X);
circleAttributes.Add("centery", Point1.Y);
if (IsDistanceCalcExpanded)
{
circleAttributes.Add("distanceunit", RateUnit.ToString());
}
else
{
circleAttributes.Add("distanceunit", LineDistanceType.ToString());
}
var color = new RgbColorClass()
{
Red = 255
} as IColor;
this.AddGraphicToMap(construct as IGeometry, color, attributes: circleAttributes);
Point2 = null;
HasPoint2 = false;
ResetFeedback();
}
return(construct as IGeometry);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
return(null);
}
}