private void ReduceNode(ISchematicRulesHelper rulesHelper, ISchematicInMemoryFeatureClass superspanLinkClass, ISpatialReference spatialRef, ISchematicInMemoryFeature schFeatureToReduce)
{
if (schFeatureToReduce.Displayed == false || rulesHelper == null || spatialRef == null)
{
return;
}
// get the two connected links
IEnumSchematicInMemoryFeature enumLink = rulesHelper.GetDisplayedIncidentLinks((ISchematicInMemoryFeatureNode)schFeatureToReduce, esriSchematicEndPointType.esriSchematicOriginOrExtremityNode);
if (enumLink == null || enumLink.Count != 2)
{
return;
}
enumLink.Reset();
ISchematicInMemoryFeature schFeat1 = enumLink.Next();
ISchematicInMemoryFeature schFeat2 = enumLink.Next();
ISchematicInMemoryFeatureLink schLink1 = (ISchematicInMemoryFeatureLink)schFeat1;
ISchematicInMemoryFeatureLink schLink2 = (ISchematicInMemoryFeatureLink)schFeat2;
if (schLink1 == null || schLink2 == null)
{
return;
}
ISchematicInMemoryFeature schFeatureSuperspan = null;
ISchematicInMemoryFeature schFeatureTmp = null;
ISchematicInMemoryFeatureNode schNodeToReduce = (ISchematicInMemoryFeatureNode)schFeatureToReduce;
ISchematicInMemoryFeatureNode schFromNode;
ISchematicInMemoryFeatureNode schToNode;
int iFromPort;
int iToPort;
IGeometry superspanGeometry;
if (schLink2.FromNode == schNodeToReduce)
{
superspanGeometry = BuildLinkGeometry(schLink1, schNodeToReduce, schLink2, rulesHelper);
if (schLink1.ToNode == schNodeToReduce)
{
schFromNode = schLink1.FromNode;
iFromPort = schLink1.FromPort;
}
else
{
schFromNode = schLink1.ToNode;
iFromPort = schLink1.ToPort;
}
schToNode = schLink2.ToNode;
iToPort = schLink2.ToPort;
}
else
{
superspanGeometry = BuildLinkGeometry(schLink2, schNodeToReduce, schLink1, rulesHelper);
schFromNode = schLink2.FromNode;
iFromPort = schLink2.FromPort;
if (schLink1.FromNode == schNodeToReduce)
{
schToNode = schLink1.ToNode;
iToPort = schLink1.ToPort;
}
else
{
schToNode = schLink1.FromNode;
iToPort = schLink1.FromPort;
}
}
if (superspanGeometry != null)
{
superspanGeometry.SpatialReference = spatialRef;
}
// find a unique name for the superspan
string strFromName = schFromNode.Name;
string strtoName = schToNode.Name;
string strName;
long lCount = 1;
while (schFeatureSuperspan == null)
{
strName = strFromName + ";" + strtoName + ";" + lCount.ToString();
if (strName.Length >= 128)
{
break; // too long a name
}
try
{
schFeatureTmp = rulesHelper.AlterLink(superspanLinkClass, strName, null, superspanGeometry, -2, -2,
strFromName, strtoName, esriFlowDirection.esriFDWithFlow, iFromPort, iToPort);
}
catch
{
schFeatureTmp = null;
}
if (schFeatureTmp == null)
{
continue;
}
// valid new feature
schFeatureSuperspan = schFeatureTmp;
}
// last chance for a unique name
lCount = 1;
while (schFeatureSuperspan == null)
{
strName = schNodeToReduce.Name + ";" + lCount.ToString();
if (strName.Length >= 128)
{
break; // too long a name
}
try
{
schFeatureTmp = rulesHelper.AlterLink(superspanLinkClass, strName, null, superspanGeometry, -2, -2,
strFromName, strtoName, esriFlowDirection.esriFDWithFlow, iFromPort, iToPort);
}
catch
{
schFeatureTmp = null;
}
if (schFeatureTmp == null)
{
continue;
}
// valid new feature
schFeatureSuperspan = schFeatureTmp;
}
if (schFeatureSuperspan == null)
{
return; // cannot find a unique name
}
// otherwise report the cumulated length of the reduced links to the superspan
ReportCumulativeValues(schFeat1, schFeat2, schFeatureSuperspan);
// report the associations on the superspan link
rulesHelper.ReportAssociations(schFeatureToReduce, schFeatureSuperspan);
rulesHelper.ReportAssociations(schFeat1, schFeatureSuperspan);
rulesHelper.ReportAssociations(schFeat2, schFeatureSuperspan);
// hide the reduced objects
rulesHelper.HideFeature(schFeatureToReduce);
rulesHelper.HideFeature(schFeat1);
rulesHelper.HideFeature(schFeat2);
}
private void ReduceNode(ISchematicRulesHelper rulesHelper, ISchematicInMemoryFeatureClass superspanLinkClass , ISpatialReference spatialRef, ISchematicInMemoryFeature schFeatureToReduce)
{
if (schFeatureToReduce.Displayed == false || rulesHelper == null || spatialRef == null)
return;
// get the two connected links
IEnumSchematicInMemoryFeature enumLink = rulesHelper.GetDisplayedIncidentLinks((ISchematicInMemoryFeatureNode)schFeatureToReduce, esriSchematicEndPointType.esriSchematicOriginOrExtremityNode);
if (enumLink == null || enumLink.Count != 2)
return;
enumLink.Reset();
ISchematicInMemoryFeature schFeat1 = enumLink.Next();
ISchematicInMemoryFeature schFeat2 = enumLink.Next();
ISchematicInMemoryFeatureLink schLink1 = (ISchematicInMemoryFeatureLink)schFeat1;
ISchematicInMemoryFeatureLink schLink2 = (ISchematicInMemoryFeatureLink)schFeat2;
if (schLink1 == null || schLink2 == null) return;
ISchematicInMemoryFeature schFeatureSuperspan = null;
ISchematicInMemoryFeature schFeatureTmp = null;
ISchematicInMemoryFeatureNode schNodeToReduce = (ISchematicInMemoryFeatureNode)schFeatureToReduce;
ISchematicInMemoryFeatureNode schFromNode;
ISchematicInMemoryFeatureNode schToNode;
int iFromPort;
int iToPort;
IGeometry superspanGeometry;
if (schLink2.FromNode == schNodeToReduce)
{
superspanGeometry = BuildLinkGeometry(schLink1, schNodeToReduce, schLink2, rulesHelper);
if (schLink1.ToNode == schNodeToReduce)
{
schFromNode = schLink1.FromNode;
iFromPort = schLink1.FromPort;
}
else
{
schFromNode = schLink1.ToNode;
iFromPort = schLink1.ToPort;
}
schToNode = schLink2.ToNode;
iToPort = schLink2.ToPort;
}
else
{
superspanGeometry = BuildLinkGeometry(schLink2, schNodeToReduce, schLink1, rulesHelper);
schFromNode = schLink2.FromNode;
iFromPort = schLink2.FromPort;
if (schLink1.FromNode == schNodeToReduce)
{
schToNode = schLink1.ToNode;
iToPort = schLink1.ToPort;
}
else
{
schToNode = schLink1.FromNode;
iToPort = schLink1.FromPort;
}
}
if (superspanGeometry != null)
superspanGeometry.SpatialReference = spatialRef;
// find a unique name for the superspan
string strFromName = schFromNode.Name;
string strtoName = schToNode.Name;
string strName;
long lCount = 1;
while (schFeatureSuperspan == null)
{
strName = strFromName + ";" + strtoName + ";" + lCount.ToString();
if (strName.Length >= 128)
break; // too long a name
try
{
schFeatureTmp = rulesHelper.AlterLink(superspanLinkClass, strName, null, superspanGeometry, -2, -2,
strFromName, strtoName, esriFlowDirection.esriFDWithFlow, iFromPort, iToPort);
}
catch
{
schFeatureTmp = null;
}
if (schFeatureTmp == null)
continue;
// valid new feature
schFeatureSuperspan = schFeatureTmp;
}
// last chance for a unique name
lCount = 1;
while (schFeatureSuperspan == null)
{
strName = schNodeToReduce.Name + ";" + lCount.ToString();
if (strName.Length >= 128)
break; // too long a name
try
{
schFeatureTmp = rulesHelper.AlterLink(superspanLinkClass, strName, null, superspanGeometry, -2, -2,
strFromName, strtoName, esriFlowDirection.esriFDWithFlow, iFromPort, iToPort);
}
catch
{
schFeatureTmp = null;
}
if (schFeatureTmp == null)
continue;
// valid new feature
schFeatureSuperspan = schFeatureTmp;
}
if (schFeatureSuperspan == null)
return; // cannot find a unique name
// otherwise report the cumulated length of the reduced links to the superspan
ReportCumulativeValues(schFeat1, schFeat2, schFeatureSuperspan);
// report the associations on the superspan link
rulesHelper.ReportAssociations(schFeatureToReduce, schFeatureSuperspan);
rulesHelper.ReportAssociations(schFeat1, schFeatureSuperspan);
rulesHelper.ReportAssociations(schFeat2, schFeatureSuperspan);
// hide the reduced objects
rulesHelper.HideFeature(schFeatureToReduce);
rulesHelper.HideFeature(schFeat1);
rulesHelper.HideFeature(schFeat2);
}
