private bool IsOverlaps(IGeometry pFeatureGeo, string typevalue) //判断几何图形间是否有重叠
{
bool isoverlaps = false;
switch (typevalue)
{
case "001":
pBasicGeo = GetBasicGeo("003");
break;
case "002":
pBasicGeo = GetBasicGeo("004");
break;
case "003":
pBasicGeo = GetBasicGeo("001");
break;
case "004":
pBasicGeo = GetBasicGeo("002");
break;
default:
break;
}
IRelationalOperator pRelaOperator = pBasicGeo as IRelationalOperator;
isoverlaps = pRelaOperator.Overlaps(pFeatureGeo) || pRelaOperator.Contains(pFeatureGeo);
return(isoverlaps);
}
public bool polygonOverlaps(IFeature SourceFeature, IFeature InspectedFeature)
{
//isOverlaps==true 表示两个面要素有重叠
IRelationalOperator RelationalOperator = SourceFeature.Shape as IRelationalOperator;
bool isOverlaps = false;
isOverlaps = RelationalOperator.Overlaps(InspectedFeature.Shape);
return(isOverlaps);
}
public List <GeoStruct> BufferAnalyseNew(IPolyline pGeom, double dist, IFeatureLayer fealyr, IGeometry Reg = null)
{
List <GeoStruct> geoList = new List <GeoStruct>();
ITopologicalOperator top = pGeom as ITopologicalOperator;
IGeometry geom = top.Buffer(dist);
IFeatureCursor searchCursor = SpatialSearch(geom, "1=1", fealyr);
if (searchCursor != null)
{
IFeature fea = searchCursor.NextFeature();
while (fea != null)
{
GeoStruct geoTmp = new GeoStruct();
var fieldDict = new Dictionary <string, string>();
for (var i = 0; i < fea.Fields.FieldCount; i++)
{
var field = fea.Fields.Field[i];
if (field.Type != esriFieldType.esriFieldTypeGeometry)
{
fieldDict.Add(field.Name, fea.Value[i].ToString());
}
else
{
geoTmp.geo = fea.Shape;
}
}
geoTmp.geoinfos = fieldDict;
IRelationalOperator relation = Reg as IRelationalOperator;
bool bin = (relation.Overlaps(fea.Shape) || relation.Touches(fea.Shape) || relation.Contains(fea.Shape));
double distance = CalculateDistanceNew(pGeom, geoTmp.geo);
if (bin)
{
distance = 0.0;
}
if (distance < Global.searchlen)
{
geoTmp.dist = distance;
geoList.Add(geoTmp);
}
//geoTmp.dist = distance;
//geoList.Add(geoTmp);
fea = searchCursor.NextFeature();
}
}
return(geoList);
}
/// <summary>
/// 验证指定的要素是否在裁切范围内
/// </summary>
/// <param name="pFeatureGeometry"></param>
/// <returns></returns>
public virtual bool FeatureInCutRegion(IGeometry pFeatureGeometry)
{
try
{
if (pFeatureGeometry == null)
return false;
IRelationalOperator pRelation = m_CutGeometry as IRelationalOperator;
if (pRelation.Crosses(pFeatureGeometry) || pRelation.Contains(pFeatureGeometry)
|| pRelation.Touches(pFeatureGeometry)|| pRelation.Overlaps(pFeatureGeometry)
|| pRelation.Within(pFeatureGeometry) || pRelation.Equals(pFeatureGeometry))
return true;
return false;
}
catch (Exception ex)
{
LogAPI.WriteLog("判断裁切范围时出错，系统将不对【" + StructureNode.TableName + "】进行裁切!\r\n");
return false;
}
}