/// <summary>
/// 左键弹起
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
void mapControl_eventLButtonUp(object sender, _DHOSOFTMapControlEvents_eventLButtonUpEvent e)
{
//if (!isShift)
//{
// isFinish = true;
// isMouseDown = false;
// RegistCommondExecutedEvent();
//}
if (!isControl)
{
if (!string.IsNullOrEmpty(tempName))
{
mapControl.MgsDelObject(tempName);
}
Kml kml = new Kml();
KmlCircle circle = new KmlCircle();
kml.Placemark.Name = "mgis_circle" + Utils.ElementIndex;
circle.Position = centerPoint;
circle.RandomPosition = new MapLngLat(e.dLong, e.dLat);
circle.StrokeColor = System.Drawing.Color.Red;
circle.FillColor = System.Drawing.Color.FromArgb(0, System.Drawing.Color.White);
circle.StrokeWidth = 3;
kml.Placemark.Graph = circle;
IMFElement element = null;
layer.AddElement(kml, out element);
circleElement = element as IMFCircle;
RegistCommondExecutedEvent();
ReleaseCommond();//修改 陈静
isFinish = true;
isMouseDown = false;
}
}
/// <summary>
/// 鼠标按下事件
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void mapControl_OnMouseDown(object sender, IGlobeControlEvents_OnMouseDownEvent e)
{
if (e.button != 1)
{
return;
}
MapLngLat lnglat = this.SceneToGeographyPoint(e.x, e.y);
if (kml == null)
{
kml = new Kml();
kml.Placemark.Name = "绘制圆" + Utils.Index;
circleKml = new KmlCircle();
circleKml.Description = "手动绘制的圆";
circleKml.FillColor = Color.FromArgb(70, Color.Orange);
circleKml.StrokeColor = Color.FromArgb(70, Color.Red);
circleKml.StrokeWidth = 2;
circleKml.Rasterize = true;
circleKml.Position = lnglat;
}
else
{
circleKml.RandomPosition = lnglat;
drawn = layer.AddElement(kml, out circleElement);
}
}
/// <summary>
/// 构造函数
/// </summary>
/// <param name="p"></param>
/// <param name="kmlCircle">kml</param>
/// <param name="elementName">图元名称</param>
public Circle_GMap(PointLatLng p, KmlCircle kmlCircle, string elementName, List <PointLatLng> points)
: base(points, elementName)
{
position = new MapLngLat(p.Lng, p.Lat);
this.IsHitTestVisible = true;
this.ElementName = elementName;
this.ElementType = ElementTypeEnum.Circle;
this.Description = kmlCircle.Description;
if (kmlCircle.RandomPosition != null)
{
radius = Utils.GetDistance(kmlCircle.Position, kmlCircle.RandomPosition) * 1000;
}
else
{
radius = kmlCircle.Radius;
}
Stroke = new Pen(kmlCircle.StrokeColor, kmlCircle.StrokeWidth);
Fill = new SolidBrush(kmlCircle.FillColor);
pen = new Pen(Brushes.Green, 1);
listPoints = new List <GPoint>();
flashTimer = new System.Timers.Timer();
flashTimer.Elapsed += flashTimer_Elapsed;
}
// 鼠标左键按下
private void gmapControl_MouseDown(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left && !gmapControl.CanDragMap)//空格按下后漫游
{
var lngLat = gmapControl.FromLocalToLatLng(e.X, e.Y);
centerPoint.Lng = lngLat.Lng;
centerPoint.Lat = lngLat.Lat;
Kml kml = new Kml();
kml.Placemark.Name = "draw_circle" + Utils.ElementIndex;
KmlCircle circleKml = new KmlCircle();
circleKml.FillColor = Color.FromArgb(50, Color.Blue);
circleKml.Position = new MapLngLat(lngLat.Lng, lngLat.Lat);
circleKml.RandomPosition = circleKml.Position;
circleKml.Radius = 0;
circleKml.StrokeColor = Color.Gray;
circleKml.StrokeWidth = 2;
kml.Placemark.Graph = circleKml;
IMFElement element = null;
drawn = layer.AddElement(kml, out element);
circleElement = element as IMFCircle;
gmapControl.MouseMove += gmapControl_MouseMove;
gmapControl.MouseUp += gmapControl_MouseUp;
}
}
/// <summary>
/// 添加图元
/// </summary>
/// <param name="kml"></param>
/// <param name="layer"></param>
/// <returns></returns>
public IMFElement CreateElement(Kml kml, ILayer layer)
{
KmlCircle circleKml = kml.Placemark.Graph as KmlCircle;
if (circleKml.Position == null)
{
return(null);
}
int index = -1;
Circle_ArcGlobe circleElement = null;
this.Dosomething((Action) delegate()
{
//图元
IGlobeGraphicsLayer graphicsLayer = layer as IGlobeGraphicsLayer;
circleElement = new Circle_ArcGlobe(graphicsLayer, circleKml);
IGlobeGraphicsElementProperties properties = new GlobeGraphicsElementPropertiesClass();
properties.Rasterize = circleKml.Rasterize;
graphicsLayer.AddElement(circleElement, properties, out index);
circleElement.Index = index;
circleElement.ElementName = kml.Placemark.Name;
}, true);
return(circleElement);
}
/// <summary>
/// 释放资源
/// </summary>
public void Dispose()
{
ReleaseCommond();
circleElement = null;
mapControl = null;
circleKml = null;
kml = null;
layer = null;
CommondExecutedEvent = null;
mapLogic = null;
drawn = false;
}
/// <summary>
/// 创建圆图元
/// </summary>
/// <param name="kml">kml对象</param>
/// <param name="gmapOverlay">图层</param>
/// <returns></returns>
public IMFElement CreateElement(Kml kml, GMapOverlay gmapOverlay)
{
KmlCircle kmlCircle = kml.Placemark.Graph as KmlCircle;
if (kmlCircle == null)
{
return(null);
}
if (kmlCircle.Position == null)
{
return(null);
}
if (kmlCircle.RandomPosition == null && kmlCircle.Radius == 0)
{
return(null);
}
List <PointLatLng> pointList = new List <PointLatLng>();
for (int i = 0; i < 360; i++)
{
double seg = Math.PI * i / 180;
double a = kmlCircle.Position.Lng + kmlCircle.Radius * Math.Cos(seg) / 100000;
double b = kmlCircle.Position.Lat + kmlCircle.Radius * Math.Sin(seg) / 100000;
PointLatLng lnglat = new PointLatLng(b, a);
pointList.Add(lnglat);
}
Circle_GMapEx circle = new Circle_GMapEx(pointList, kmlCircle, kml.Placemark.Name);
// 添加到图层
if (gmapOverlay.Control.InvokeRequired)
{
gmapOverlay.Control.Invoke(new Action(delegate
{
gmapOverlay.Polygons.Add(circle);
}));
}
else
{
gmapOverlay.Polygons.Add(circle);
}
return(circle);
}
private void 添加圆ToolStripMenuItem_Click(object sender, EventArgs e)
{
Kml kml = new Kml();
kml.Placemark.Name = "my_circle";
KmlCircle circle = new KmlCircle();
circle.Position = new MapLngLat(110, 30);
circle.FillColor = Color.Red;
circle.Radius = 500000;
circle.StrokeColor = Color.Gray;
circle.StrokeWidth = 3;
kml.Placemark.Graph = circle;
// 画点
mapLogic.GetLayer(drawLayerName).AddElement(kml, out element);
circleElement = element as IMFCircle;
}
/// <summary>
/// 构造函数
/// </summary>
/// <param name="kml">kml对象</param>
/// <param name="_mapControl">地图控件</param>
public Circle_Mgis(Kml kml, AxHOSOFTMapControl _mapControl)
{
this.mapControl = _mapControl;
KmlCircle kmlCircle = kml.Placemark.Graph as KmlCircle;
if (kmlCircle.Position == null || kmlCircle.RandomPosition == null || kml.Placemark.Name == string.Empty)
{
return;
}
listPoint = new List <MapLngLat>();
listPoint.Add(kmlCircle.Position);
listPoint.Add(kmlCircle.RandomPosition);
float[] vertex = new float[4];
IntPtr ptrVert = Marshal.AllocHGlobal(sizeof(float) * 4);
vertex[0] = (float)listPoint[0].Lng;
vertex[1] = (float)listPoint[0].Lat;
vertex[2] = (float)listPoint[1].Lng;
vertex[3] = (float)listPoint[1].Lat;
Marshal.Copy(vertex, 0, ptrVert, vertex.Length);
this.symbolName = kml.Placemark.Name;
mapControl.MgsDrawLineSymByJBID(symbolName, 16, (ulong)(ptrVert.ToInt64()), 2);
mapControl.MgsUpdateSymFillColor(symbolName, kmlCircle.FillColor.R, kmlCircle.FillColor.G, kmlCircle.FillColor.B, kmlCircle.FillColor.A);
mapControl.MgsUpdateSymColor(symbolName, kmlCircle.StrokeColor.R, kmlCircle.StrokeColor.G, kmlCircle.StrokeColor.B, kmlCircle.StrokeColor.A);
mapControl.MgsUpdateSymLineWidth(symbolName, kmlCircle.StrokeWidth); //轮廓大小
mapControl.update(); //刷新
Marshal.FreeHGlobal(ptrVert);
this.ElementType = ElementTypeEnum.Circle;
bFillColor = kmlCircle.FillColor; //填充颜色
bOutLineColor = kmlCircle.StrokeColor; //轮廓颜色
this.width = kmlCircle.StrokeWidth; //轮廓大小
flashTimer = new Timer();
flashTimer.Elapsed += new ElapsedEventHandler(flashTimer_Elapsed);
flashTimer.Interval = 500;
}
/// <summary>
/// 构造函数
/// </summary>
/// <param name="pointList"></param>
/// <param name="kmlCircle"></param>
/// <param name="elementName"></param>
public Circle_GMapEx(List <PointLatLng> pointList, KmlCircle kmlCircle, string elementName)
: base(pointList, elementName)
{
this.radius = kmlCircle.Radius;
this.centerLnglat = kmlCircle.Position;
this.ElementName = elementName;
this.ElementType = ElementTypeEnum.Circle;
this.Description = "圆";
this.fillColor = kmlCircle.FillColor;
SolidBrush b = new SolidBrush(kmlCircle.FillColor);
base.Fill = b;
Pen pen = new Pen(kmlCircle.StrokeColor, kmlCircle.StrokeWidth);
base.Stroke = pen;
this.IsHitTestVisible = true; // 鼠标经过可见
base.Tag = this;
refreshTimer = new System.Timers.Timer(500);
refreshTimer.Elapsed += new System.Timers.ElapsedEventHandler(refreshTimer_Elapsed);
}
// 绘制设备服务
public void DrawDeviceRanage(DataTable dt)
{
if (dt == null || dt.Rows.Count <= 0)
{
return;
}
foreach (DataRow row in dt.Rows)
{
DeviceData device = new DeviceData(row);
IMFLayer layer = mapLogic.AddLayer("设备服务图层");
if (layer == null)
{
continue;
}
// 绘制设备（基站）
string url = string.Format("{0}|{1}|{2}", Application.StartupPath + "\\Image\\TTMITC.TTF", 113, 20);
Kml kml = new Kml();
kml.Placemark.Name = device.DeviceNumber;
kml.Placemark.Graph = new KmlPicture()
{
Position = new MapLngLat(device.Lng, device.Lat), IconUrl = url, Scale = 1, TipText = device.DeviceNumber, LabelText = device.DeviceName, IconColor = Color.Red
};
layer.AddElement(kml);
// 绘制服务范围（面）
Kml kmlCircle = new Kml();
kmlCircle.Placemark.Name = device.DeviceNumber + "polygon";
KmlCircle circle = new KmlCircle();
circle.Position = new MapLngLat(device.Lng, device.Lat);
circle.FillColor = Color.FromArgb(50, Color.Green);
circle.Radius = device.RangeRadius * 1000;
circle.StrokeColor = Color.Blue;
circle.StrokeWidth = 1;
kmlCircle.Placemark.Graph = circle;
layer.AddElement(kmlCircle);
}
}
/// <summary>
/// 鼠标按下事件
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void mapControl_OnMouseDown(object sender, IMapControlEvents2_OnMouseDownEvent e)
{
if (e.button == 1 && !isMouseDown && !isControl)
{
centerDot = new MapLngLat()
{
Lng = e.mapX, Lat = e.mapY
};
Kml kml = new Kml();
kml.Placemark.Name = "arc_circle" + Utils.ElementIndex;
KmlCircle circle = new KmlCircle();
circle.Position = centerDot;
circle.Radius = 0.1;
circle.StrokeColor = Color.Yellow;
circle.StrokeWidth = 2;
circle.FillColor = System.Drawing.Color.Red;
kml.Placemark.Graph = circle;
IMFElement element = null;
layer.AddElement(kml, out element);
circleElement = element as IMFCircle;
isMouseDown = true;
isFinish = false;
}
}
// 处理波束数据
private void DealBeamCover(BeamData e)
{
if (e.Point.Alt > 0)
{
return; // 卫星数据，不做处理
}
if (mapLogic == null)
{
return;
}
// 添加圆图元（波束覆盖）
IMFLayer layer = mapLogic.AddLayer(coverLayerName);
if (layer == null)
{
return;
}
string circleName = string.Format("卫星{0}-波束{1}", e.SatelliteId, e.BeamId);
string textName = string.Format("卫星{0}-波束{1}_描述", e.SatelliteId, e.BeamId, e.BeamId);
if (!beamDic.ContainsKey(e.SatelliteId)) // 新的波束
{
Kml kmlCircle = new Kml();
kmlCircle.Placemark.Name = circleName;
KmlCircle circle = new KmlCircle();
circle.Position = e.Point;
circle.FillColor = Color.FromArgb(50, Color.Green);
circle.Radius = 500000;
circle.StrokeColor = Color.Blue;
circle.StrokeWidth = 1;
kmlCircle.Placemark.Graph = circle;
layer.AddElement(kmlCircle);
// 添加文字图元
Kml kmlText = new Kml();
kmlText.Placemark.Name = textName;
string context = string.Format("卫星{0}-波束{1}", e.SatelliteId, e.BeamId);
kmlText.Placemark.Graph = new KmlText()
{
Position = e.Point, Content = context, Color = Color.Blue, Font = "宋体", Size = 10
};
IMFElement elementText;
if (layer.AddElement(kmlText, out elementText))
{
bool visible = zoom >= visibleZoom ? true : false;
elementText.SetVisible(visible);
}
// 添加到字典进行维护
List <int> beamIdList = new List <int>();
beamIdList.Add(e.BeamId);
lock (beamDic)
{
beamDic.Add(e.SatelliteId, beamIdList);
}
}
else
{
if (!beamDic[e.SatelliteId].Contains(e.BeamId)) // 新的波束
{
Kml kmlCircle = new Kml();
kmlCircle.Placemark.Name = circleName;
KmlCircle circle = new KmlCircle();
circle.Position = e.Point;
circle.FillColor = Color.FromArgb(50, Color.Green);
circle.Radius = 500000;
circle.StrokeColor = Color.Blue;
circle.StrokeWidth = 1;
kmlCircle.Placemark.Graph = circle;
layer.AddElement(kmlCircle);
// 添加文字图元
string context = string.Format("卫星{0}-波束{1}", e.SatelliteId, e.BeamId);
Kml kmlText = new Kml();
kmlText.Placemark.Name = textName;
kmlText.Placemark.Graph = new KmlText()
{
Position = e.Point, Content = context, Color = Color.Blue, Font = "宋体", Size = 10
};
IMFElement elementText;
if (layer.AddElement(kmlText, out elementText))
{
bool visible = zoom >= visibleZoom ? true : false;
elementText.SetVisible(visible);
}
lock (beamDic)
{
// 添加到字典进行维护
beamDic[e.SatelliteId].Add(e.BeamId);
}
}
else
{
// 更新圆图元（波束覆盖）位置
IMFElement elementCircle = layer.GetElement(circleName);
if (elementCircle != null)
{
IMFCircle circle = elementCircle as IMFCircle;
if (circle != null)
{
circle.UpdatePosition(e.Point);
}
}
// 更新文字图元（描述信息）位置
IMFElement elementText = layer.GetElement(textName);
if (elementText != null)
{
IMFText text = elementText as IMFText;
if (text != null)
{
text.UpdatePosition(e.Point);
}
}
}
}
}
/// <summary>
/// 构造函数
/// </summary>
/// <param name="graphicsLayer">图层</param>
/// <param name="kmlCircle">圆的kml</param>
public Circle_ArcGlobe(IGlobeGraphicsLayer _graphicsLayer, KmlCircle kmlCircle)
{
this.ElementType = Core.Model.ElementTypeEnum.Circle;
graphicsLayer = _graphicsLayer;
lineSymbol = new SimpleLineSymbolClass();
lineSymbol.Color = new RgbColorClass()
{
Red = kmlCircle.StrokeColor.R,
Green = kmlCircle.StrokeColor.G,
Blue = kmlCircle.StrokeColor.B
};
if (kmlCircle.StrokeWidth == 0)
{
kmlCircle.StrokeWidth = 2;
}
lineSymbol.Width = kmlCircle.StrokeWidth;
fillSymbol = new SimpleFillSymbolClass();
fillSymbol.Outline = lineSymbol;
fillSymbol.Color = new RgbColorClass()
{
Red = kmlCircle.FillColor.R,
Green = kmlCircle.FillColor.G,
Blue = kmlCircle.FillColor.B
};
radius = kmlCircle.Radius;
outlineColor = kmlCircle.StrokeColor;
fillColor = kmlCircle.FillColor;
centerPoint = new PointClass();//圆心坐标
centerPoint.PutCoords(kmlCircle.Position.Lng, kmlCircle.Position.Lat);
centerPoint.Z = kmlCircle.Position.Alt;
missing = System.Type.Missing;
IZAware zAware = (IGeometry)centerPoint as IZAware;
zAware.ZAware = true;
upperAxisVector3D = new Vector3DClass();
upperAxisVector3D.SetComponents(0, 0, 2);
lowerAxisVector3D = new Vector3DClass();
lowerAxisVector3D.SetComponents(0, 0, -2);
lowerAxisVector3D.XComponent -= vectorComponentOffset;
lowerAxisVector3D.YComponent -= vectorComponentOffset;//TODO
normalVector3D = upperAxisVector3D.CrossProduct(lowerAxisVector3D) as IVector3D;
normalVector3D.Magnitude = kmlCircle.Radius;
double rotationAngleInRadians = 2 * (Math.PI / 180);
//geometryCollection = new MultiPatchClass();
pointCollection = new PolygonClass();
for (int i = 0; i < 180; i++)
{
normalVector3D.Rotate(-1 * rotationAngleInRadians, upperAxisVector3D);
IPoint vertexPoint = new PointClass();
vertexPoint.X = centerPoint.X + normalVector3D.XComponent;
vertexPoint.Y = centerPoint.Y + normalVector3D.YComponent;
vertexPoint.Z = centerPoint.Z;
pointCollection.AddPoint(vertexPoint, missing, missing);
}
base.Symbol = fillSymbol;
base.Geometry = pointCollection as IGeometry;
flashTimer = new System.Timers.Timer();
flashTimer.Elapsed += new System.Timers.ElapsedEventHandler(flashTimer_Elapsed);
flashTimer.Interval = 500;
}
/// <summary>
/// 构造函数
/// </summary>
/// <param name="_mapControl"></param>
/// <param name="circle"></param>
public Circle_ArcMap(AxMapControl _mapControl, KmlCircle circle, FactoryArcMap facArc)
{
this.mapControl = _mapControl;
this.factoryArcMap = facArc;
Dosomething(new Action(delegate
{
lineSymbol = new SimpleLineSymbolClass();
lineSymbol.Color = new RgbColorClass()
{
Red = circle.StrokeColor.R,
Green = circle.StrokeColor.B,
Blue = circle.StrokeColor.B
};
lineSymbol.Width = circle.StrokeWidth;
fillSymbol = new SimpleFillSymbol();
fillSymbol.Outline = lineSymbol;
//填充色
IColor fillColor = new RgbColorClass()
{
Transparency = circle.FillColor.A,
Red = circle.FillColor.R,
Green = circle.FillColor.G,
Blue = circle.FillColor.B
};
fillSymbol.Color = fillColor;
base.Symbol = fillSymbol;//颜色和风格
iSeg = new RingClass();
centerPoint = new PointClass();//圆心坐标
centerPoint.PutCoords(circle.Position.Lng, circle.Position.Lat);
MapLngLat around = MapFrame.Core.Common.Utils.GetPointByDistanceAndAngle((float)circle.Radius, circle.Position, 180);
INewLineFeedback backline = new NewLineFeedbackClass();
IPoint aroundPoint = new PointClass()
{
X = around.Lng, Y = around.Lat
};
backline.Start(centerPoint);
backline.AddPoint(aroundPoint);
var geo = backline.Stop();
iSeg.SetCircle(centerPoint, geo.Length);
object o = System.Type.Missing;
pRing = iSeg as IRing;
pRing.Close();
pGeometryColl = new PolygonClass();
pGeometryColl.AddGeometry(pRing, ref o, ref o);
pGeometry = pGeometryColl as IGeometry;
base.Geometry = pGeometry;
}), true);
pRadius = circle.Radius;
bOutLineColor = circle.StrokeColor;
bFillColor = circle.FillColor;
bWidth = circle.StrokeWidth;
flashTimer = new Timer();
flashTimer.Elapsed += new ElapsedEventHandler(flashTimer_Elapsed);
#region MyRegion
//if (mapControl.InvokeRequired)
//{
// mapControl.Invoke((Action)delegate()
// {
// lineSymbol = new SimpleLineSymbolClass();
// lineSymbol.Color = new RgbColorClass()
// {
// Red = circle.StrokeColor.R,
// Green = circle.StrokeColor.B,
// Blue = circle.StrokeColor.B
// };
// lineSymbol.Width = circle.StrokeWidth;
// fillSymbol = new SimpleFillSymbol();
// fillSymbol.Outline = lineSymbol;
// //填充色
// IColor fillColor = new RgbColorClass()
// {
// Transparency = circle.FillColor.A,
// Red = circle.FillColor.R,
// Green = circle.FillColor.G,
// Blue = circle.FillColor.B
// };
// fillSymbol.Color = fillColor;
// base.Symbol = fillSymbol;//颜色和风格
// iSeg = new RingClass();
// centerPoint = new PointClass();//圆心坐标
// centerPoint.PutCoords(circle.Position.Lng, circle.Position.Lat);
// //MapFrame.Core.Model.MapLngLat around = GetPointByDistanceAndAngle(circle.Radius, circle.Position);
// MapLngLat around = MapFrame.Core.Common.Utils.GetPointByDistanceAndAngle((float)circle.Radius, circle.Position, 180);
// INewLineFeedback backline = new NewLineFeedbackClass();
// IPoint aroundPoint = new PointClass() { X = around.Lng, Y = around.Lat };
// backline.Start(centerPoint);
// backline.AddPoint(aroundPoint);
// var geo = backline.Stop();
// iSeg.SetCircle(centerPoint, geo.Length);
// object o = System.Type.Missing;
// pRing = iSeg as IRing;
// pRing.Close();
// pGeometryColl = new PolygonClass();
// pGeometryColl.AddGeometry(pRing, ref o, ref o);
// pGeometry = pGeometryColl as IGeometry;
// base.Geometry = pGeometry;
// });
//}
//else
//{
// lineSymbol = new SimpleLineSymbolClass();
// lineSymbol.Color = new RgbColorClass()
// {
// Red = circle.StrokeColor.R,
// Green = circle.StrokeColor.B,
// Blue = circle.StrokeColor.B
// };
// lineSymbol.Width = circle.StrokeWidth;
// fillSymbol = new SimpleFillSymbol();
// fillSymbol.Outline = lineSymbol;
// //填充色
// IColor fillColor = new RgbColorClass()
// {
// Transparency = circle.FillColor.A,
// Red = circle.FillColor.R,
// Green = circle.FillColor.G,
// Blue = circle.FillColor.B
// };
// fillSymbol.Color = fillColor;
// base.Symbol = fillSymbol;//颜色和风格
// iSeg = new RingClass();
// centerPoint = new PointClass();//圆心坐标
// centerPoint.PutCoords(circle.Position.Lng, circle.Position.Lat);
// //MapFrame.Core.Model.MapLngLat around = GetPointByDistanceAndAngle(circle.Radius, circle.Position);
// MapLngLat around = MapFrame.Core.Common.Utils.GetPointByDistanceAndAngle((float)circle.Radius, circle.Position, 180);
// INewLineFeedback backline = new NewLineFeedbackClass();
// IPoint aroundPoint = new PointClass() { X = around.Lng, Y = around.Lat };
// backline.Start(centerPoint);
// backline.AddPoint(aroundPoint);
// var geo = backline.Stop();
// iSeg.SetCircle(centerPoint, geo.Length);
// object o = System.Type.Missing;
// pRing = iSeg as IRing;
// pRing.Close();
// pGeometryColl = new PolygonClass();
// pGeometryColl.AddGeometry(pRing, ref o, ref o);
// pGeometry = pGeometryColl as IGeometry;
// base.Geometry = pGeometry;
//}
#endregion
}
