AE拓扑规则创建

• 拓扑规则创建方法

IFeatureDataset FeatureDataset; 要创建拓扑规则的要素集
ITopologyContainer2 pTopoCont = FeatureDataset as ITopologyContainer2;
ITopology pTopology = pTopoCont.CreateTopology("拓扑名称", 容差（double）, -1, string.Empty);
pTopology.AddClass(pFeaCls1, 10, 5, 5, false);
pTopology.AddClass(pFeaCls2, 10, 5, 5, false);

ITopologyRule pTopoRule = new TopologyRuleClass();
pTopoRule.TopologyRuleType=（规则赋值）
pTopoRule.OriginClassID = pFeaCls1.ObjectClassID;
pTopoRule.AllOriginSubtypes = true;
pTopoRule.DestinationClassID = pFeaCls2.ObjectClassID;
pTopoRule.AllDestinationSubtypes = true;

 添加规则
ITopologyRuleContainer pTopRuleCon = pTopology as ITopologyRuleContainer;
bool bCanAddRule = pTopRuleCon.get_CanAddRule(pTopoRule);

• 执行拓扑

 IGeoDataset pGeoDS = pTopology as IGeoDataset;
 IEnvelope pEnv = pGeoDS.Extent;  
 IEnvelope pEnvOut = pTopology.ValidateTopology(pEnv);

• 拓扑图层展示

 ITopologyLayer pTopologyLyr = new TopologyLayerClass();
 pTopologyLyr.Topology = pTopology;
(pTopologyLyr as ILayer).Name = "图层名称";
 pMap.AddLayer(pTopologyLyr as ILayer);

• 获取拓扑错误信息

//获取要素类容器
IFeatureDataset pFeaDs = pTopology.FeatureDataset;
IFeatureClassContainer pFeaClsContainer = pFeaDs as IFeatureClassContainer;

//获取拓扑规则容器
ITopologyRuleContainer pRuleCont = pTopology as ITopologyRuleContainer;
IEnumRule pEnumRule = pRuleCont.Rules;
if (pEnumRule == null)
{
    return;
}

 //获取错误要素容器
IErrorFeatureContainer pErrFeaContainer = pTopology as IErrorFeatureContainer;
IRule pRule = pEnumRule.Next();
ITopologyRule pTopRule = pRule as ITopologyRule;
 while (pRule != null)
 {
    int OrgCID = pTopRule.OriginClassID;
    int DesCID = pTopRule.DestinationClassID;
    IFeatureClass pOrgFeaCls = pFeaClsContainer.get_ClassByID(OrgCID);
     获取拓扑错误要素集合
    IEnumTopologyErrorFeature pEnumTopoErrFea = pErrFeaContainer.get_ErrorFeatures(pSpr, pTopRule, pEnv, true, true);
     ITopologyErrorFeature pTopologyErrFea = pEnumTopoErrFea.Next();
     while (pTopologyErrFea != null)
     {
      获取拓扑错误图形的objectid
      int ErrID = pTopologyErrFea.ErrorID;
      int OrgOID = pTopologyErrFea.OriginOID;
      int DesOID = pTopologyErrFea.DestinationOID;
     }
 }

• 拓扑相关规则
  esriTopologyRuleType pTopoRuleType=null；
  1.必须在其它图层线的端点：esriTopologyRuleType.esriTRTPointCoveredByLineEndpoint；
  2.点必须在其他线上：esriTopologyRuleType.esriTRTPointCoveredByLine；
  3.点必须在其它面的内部：esriTopologyRuleType.esriTRTPointProperlyInsideArea；
  4.图层内部线不可以重叠: esriTopologyRuleType.esriTRTLineNoOverlap;
  5.图层内部线和线之间必须不相交:esriTopologyRuleType.esriTRTLineNoIntersection;
  6.必须在其它图层面的边缘上: esriTopologyRuleType.esriTRTLineCoveredByAreaBoundary;
  7.不能自身重叠: esriTopologyRuleType.esriTRTLineNoSelfOverlap;
  8.不能自身相交: esriTopologyRuleType.esriTRTLineNoSelfIntersect;
  9.必须是单线: esriTopologyRuleType.esriTRTLineNoMultipart;
  10.线的端点必须在其它线上:esriTopologyRuleType.esriTRTLineNoIntersectOrInteriorTouch;
  11.线的节点必须被其他点覆盖: esriTopologyRuleType.esriTRTLineEndpointCoveredByPoint;
  12.图层内部面和面之间必须不重叠:esriTopologyRuleType.esriTRTAreaNoOverlap;
  13.图层内部面和面之间必须没有缝隙:esriTopologyRuleType.esriTRTAreaNoGaps;
  14.必须不和其它图层的面重叠:esriTopologyRuleType.esriTRTAreaNoOverlapArea;
  15.必须被其它图层的面覆盖:esriTopologyRuleType.esriTRTAreaCoveredByAreaClass;
  16.必须在其它图层面的内部:esriTopologyRuleType.esriTRTAreaCoveredByArea;
  17.边缘必须被其它图层的线覆盖:esriTopologyRuleType.esriTRTAreaBoundaryCoveredByLine;
  18.线必须不被其他图层覆盖:esriTopologyRuleType.esriTRTLineNoOverlapLine;
  19.点必须被其他面的边界覆盖: esriTopologyRuleType.esriTRTPointCoveredByAreaBoundary;
  20.面的边界必须被其它图层面边界覆盖: esriTopologyRuleType.esriTRTAreaBoundaryCoveredByAreaBoundary;
  21.面与面重叠: esriTopologyRuleType.esriTRTAreaAreaCoverEachOther;
  22.线必须无摇摆:esriTopologyRuleType.esriTRTLineNoDangles;
  23.线不存在伪节点: esriTopologyRuleType.esriTRTLineNoPseudos;
  24.线必须被其他图层覆盖:esriTopologyRuleType.esriTRTLineCoveredByLineClass;
  25.面必须包含点: esriTopologyRuleType.esriTRTAreaContainPoint;