public static bool op = false;//fale--单元格数量创建灾区；true--单元格大小创建灾区
/// <summary>
/// 生成任务区域
/// </summary>
/// <param name="DID">灾区ID</param>
/// <param name="GridHeight">单元格高度</param>
/// <param name="GridWidth">单元格长度</param>
/// <param name="pMapCtr">地图控件</param>
public static void GenerateTask(ESRI.ArcGIS.Controls.AxMapControl pMapCtr, int DID,
double GridWidth, double GridHeight)
{
Core.Model.DisaAreaInfo di;
Core.DAL.DisaAreaInfo dal = new Core.DAL.DisaAreaInfo();
try
{
di = dal.GetModel(DID);
if (di == null)
{
throw (new Exception("读取灾区数据时出错"));
}
IPoint pnt = new ESRI.ArcGIS.Geometry.Point();
pnt.X = di.LON;
pnt.Y = di.LAT;
Core.Map.MapHelper maphelper = new Core.Map.MapHelper(pMapCtr);
System.Drawing.Color color = Color.Blue;
ISymbol symbol = maphelper.CreateSimpleFillSymbol(color, 1, esriSimpleFillStyle.esriSFSHollow);
double radius = di.AffectedRadius / Core.Generic.SysEnviriment.LengthPerRad;
MonitorTask.TaskAreaHelper th = new MonitorTask.TaskAreaHelper();
th.LoadMapData();
th.SetDisasterArea(di.LON - radius, di.LAT - radius, di.LON + radius, di.LAT + radius);
th.GenerateTask(GridWidth, GridHeight);
InitGrid = th.InitGrids;
DataGrid = th.DataGrids;
IEnvelope env = new Envelope() as IEnvelope;
//foreach (MonitorTask.Geometry.Grid grid in InitGrid)
//{
// env = new Envelope() as IEnvelope;
// env.XMin = grid.XMin;
// env.YMin = grid.YMin;
// env.XMax = grid.XMax;
// env.YMax = grid.YMax;
// maphelper.AddElement(env, symbol, "grid");
//}
//color = Color.Brown;
//symbol = maphelper.CreateSimpleFillSymbol(color, 1, esriSimpleFillStyle.esriSFSDiagonalCross);
//foreach (MonitorTask.Geometry.Grid grid in DataGrid)
//{
// env = new Envelope() as IEnvelope;
// env.XMin = grid.XMin;
// env.YMin = grid.YMin;
// env.XMax = grid.XMax;
// env.YMax = grid.YMax;
// maphelper.AddElement(env, symbol, "grid");
//}
}
catch (Exception ex) { throw (ex); }
}
/// <summary>
/// 获取交点
/// </summary>
/// <param name="pMapCtr"></param>
/// <param name="id"></param>
public static void getIntersect(ESRI.ArcGIS.Controls.AxMapControl pMapCtr, int id)
{
Core.Map.MapHelper map = new Core.Map.MapHelper(pMapCtr);
Core.Generic.myXML xml = new Core.Generic.myXML(System.Windows.Forms.Application.StartupPath + "\\Setting.xml");
try
{
IFeatureClass pFeatureClass = null;
Core.Model.DisaAreaInfo model = new Core.Model.DisaAreaInfo();
Core.DAL.DisaAreaInfo dal0 = new Core.DAL.DisaAreaInfo();
Core.Model.DisaCrossPoint gatherPoint = new Core.Model.DisaCrossPoint();
Core.DAL.DisaCrossPoint dal = new Core.DAL.DisaCrossPoint();
//删除以前生成的交点
dal.Deletes(id);
map.getNetWorkData(ref pFeatureClass);
//pIntersectPoint = new List<IPoint>();
string Roadtype = xml.GetElement("FilterPara", "RoadType");
string[] typeArray = Roadtype.Split(',');
string whereclause = "";
if (Roadtype != null)
{
for (int i = 0; i < typeArray.Length; i++)
{
if (i != (typeArray.Length - 1))
{
whereclause += "Type=" + typeArray[i] + " or ";
}
else
{
whereclause += "Type=" + typeArray[i];
}
}
}
//生成灾区影响范围Geometry
model = dal0.GetModel(id);
IPoint pPoint = new PointClass();
pPoint.PutCoords(model.LON, model.LAT);
ITopologicalOperator pTopoOp = default(ITopologicalOperator);
IGeometry geoBuffer = null;
pTopoOp = pPoint as ITopologicalOperator;
geoBuffer = pTopoOp.Buffer(model.AffectedRadius / Core.Generic.SysEnviriment.LengthPerRad);
ISpatialFilter pSpatialfilter = new SpatialFilterClass();
pSpatialfilter.Geometry = geoBuffer;
pSpatialfilter.SpatialRel = esriSpatialRelEnum.esriSpatialRelCrosses;
pSpatialfilter.WhereClause = whereclause;
pSpatialfilter.GeometryField = "Shape";
IFeatureCursor FeatureCursor = pFeatureClass.Search(pSpatialfilter, false);
IFeature pFeature = FeatureCursor.NextFeature();
int count = 1;
while (pFeature != null)
{
IPolyline pPolyline = pFeature.ShapeCopy as IPolyline;
ITopologicalOperator pTopologicalOperator = pPolyline as ITopologicalOperator;
IGeometry pGeometry1 =
pTopologicalOperator.Intersect(geoBuffer as IPolygon, esriGeometryDimension.esriGeometry0Dimension) as
IGeometry;
if (!pGeometry1.IsEmpty)
{
IPointCollection Pc = pGeometry1 as IPointCollection;
ISymbol symbol = map.CreateSimpleSymbol(Color.Red, 8, ESRI.ArcGIS.Display.esriSimpleMarkerStyle.esriSMSCircle);
for (int i = 0; i < Pc.PointCount; i++)
{
//将交点显示在地图上
IPoint point = Pc.get_Point(i);
map.AddElement(Pc.get_Point(i), symbol, "Intersect|" + id);
//将交点存储到数据库中
gatherPoint.LON = point.X;
gatherPoint.LAT = point.Y;
gatherPoint.PID = id;
gatherPoint.PName = "交点(" + count++ + ")";
dal.Add(gatherPoint);
//pIntersectPoint.Add(Pc.get_Point(i));
}
}
pFeature = FeatureCursor.NextFeature();
}
pMapCtr.ActiveView.Refresh();
}
catch (Exception ex) { throw ex; }
finally
{
TaskAreas = null;
}
}