C#操作Styline二次开发实现画线功能

1：鼠标点击模型事件

 List<IPosition66> pos = new List<IPosition66>();          private bool Sgworld_OnLButtonClicked(int Flags, int X, int Y)          {                           var sgworld = new SGWorld66();              var postioninfo = sgworld.Window.PixelToWorld(X, Y);              IPosition66 ss = postioninfo.Position;              ss.X = postioninfo.Position.X;              ss.Y = postioninfo.Position.Y;              pos.Add(ss);               return false;          }　

2：操作画线

  string tMsg = String.Empty;              ILinearRing cRing = null;              IGeometry cPolygonGeometry = null;              ITerrainPolyline66 cpolyo = null;              //创建实例              //MessageBox.Show(String.Format("X:{0}\r\nY:{1}", posl[i].PosX, posl[i].PosX));              var sgworld = new SGWorld66();              List<IPosition66> posl = pos;              int sin = 0;              sin = posl.Count*3;              double[] cVerticesArray = new double[sin];              //获取坐标值              for (int i = 0; i < posl.Count; i++)              {                   cVerticesArray[i*3] = posl[i].X;                  cVerticesArray[i*3+1] = posl[i].Y;                  cVerticesArray[i * 3 + 2] = posl[i].Altitude;              }               {                  cRing = sgworld.Creator.GeometryCreator.CreateLinearRingGeometry(cVerticesArray);                  cPolygonGeometry = sgworld.Creator.GeometryCreator.CreateLinearRingGeometry(cRing);              }               {                  uint nLineColor = 0xFF00FF00; //颜色样式                  AltitudeTypeCode AltitudeType = AltitudeTypeCode.ATC_ON_TERRAIN;                  // D2. Create polygon                  cpolyo = sgworld.Creator.CreatePolyline(cPolygonGeometry, nLineColor, AltitudeType, string.Empty, "Polygon");                  ///注意坐标                  sgworld.Window.PixelToWorld(sgworld.Window.Rect.Left, sgworld.Window.Rect.Top, WorldPointType.WPT_TERRAIN);              }

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