//The SelectReduction procedure works with the input node schematic node candidate to the
//reduction and with the input linkElements list of schematic link elements incident to
//this schematic node. It must return True for the output reduce boolean parameter if
//the node is reduced, false if the node is kept. When the output ppLink schematic link
//is not nothing, it determines the target node that will be used to reconnect the links
//incidents to the reduced node. In this sample procedure, the node candidate to the
//reduction is analyzed. If records related to this node exist in the plants_equipments table,
//the node is kept (output reduce parameter is False); else, it is reduced (output reduce
//parameter is True).
public bool SelectReduction(ESRI.ArcGIS.Schematic.ISchematicInMemoryFeatureNode node, ESRI.ArcGIS.Schematic.IEnumSchematicInMemoryFeature enumLink, ref ESRI.ArcGIS.Schematic.ISchematicInMemoryFeatureLink link)
{
// if associated feature doesn't exist do nothing
ESRI.ArcGIS.Schematic.ISchematicInMemoryFeature schemAssociatedNode;
schemAssociatedNode = node as ESRI.ArcGIS.Schematic.ISchematicInMemoryFeature;
if (schemAssociatedNode == null)
{
return(false);
}
// if dataset is not plants do nothing
ESRI.ArcGIS.Geodatabase.IDataset schemElementClass;
schemElementClass = (ESRI.ArcGIS.Geodatabase.IDataset)schemAssociatedNode.SchematicElementClass;
if (schemElementClass == null)
{
return(false);
}
if (schemElementClass.Name.IndexOf("plants") < 0)
{
return(false);
}
// get workspace
ESRI.ArcGIS.Geodatabase.IFeatureWorkspace plantsWorkspace;
plantsWorkspace = (ESRI.ArcGIS.Geodatabase.IFeatureWorkspace)schemElementClass.Workspace;
// open table plants_equipments
ESRI.ArcGIS.Geodatabase.ITable plantsEquipment;
plantsEquipment = plantsWorkspace.OpenTable("plants_equipments");
if (plantsEquipment == null)
{
return(false);
}
// filter for the selected feature
ESRI.ArcGIS.Schematic.ISchematicInMemoryFeaturePrimaryAssociation schemAssociation;
schemAssociation = schemAssociatedNode as ESRI.ArcGIS.Schematic.ISchematicInMemoryFeaturePrimaryAssociation;
if (schemAssociation == null)
{
return(false);
}
ESRI.ArcGIS.Geodatabase.IQueryFilter plantsFilter;
plantsFilter = new ESRI.ArcGIS.Geodatabase.QueryFilterClass();
plantsFilter.WhereClause = ("PlantID = " + schemAssociation.ObjectID);
ESRI.ArcGIS.Geodatabase.ICursor plantsCursor;
plantsCursor = plantsEquipment.Search(plantsFilter, true);
// if found equipment return false
if (plantsCursor != null && plantsCursor.NextRow() != null)
{
return(false);
}
return(true); // if this far
}
public bool SelectReduction(ESRI.ArcGIS.Schematic.ISchematicInMemoryFeatureNode node, ESRI.ArcGIS.Schematic.IEnumSchematicInMemoryFeature enumLink, ref ESRI.ArcGIS.Schematic.ISchematicInMemoryFeatureLink link)
{
// if enumLink is empty do nothing
if (enumLink == null)
{
return(false);
}
if (enumLink.Count == 0)
{
return(false);
}
enumLink.Reset();
ESRI.ArcGIS.Schematic.ISchematicInMemoryFeature schemAssociatedLink;
schemAssociatedLink = enumLink.Next();
// for each link in enumLink
while (schemAssociatedLink != null)
{
// get cables
ESRI.ArcGIS.Geodatabase.IFeature cablesFeature;
cablesFeature = schemAssociatedLink.SchematicElement as ESRI.ArcGIS.Geodatabase.IFeature;
if (cablesFeature == null)
{
return(false);
}
// get cables class
ESRI.ArcGIS.Geodatabase.IDataset cablesDataset;
cablesDataset = (ESRI.ArcGIS.Geodatabase.IDataset)cablesFeature.Class;
// if not the right class do nothing
if (cablesDataset.Name.IndexOf("cables") == 0)
{
return(false);
}
// get workspace
ESRI.ArcGIS.Geodatabase.IFeatureWorkspace cablesWorkspace;
cablesWorkspace = (ESRI.ArcGIS.Geodatabase.IFeatureWorkspace)cablesDataset.Workspace;
// open table cables_attributes
ESRI.ArcGIS.Geodatabase.ITable cablesTable;
cablesTable = cablesWorkspace.OpenTable("cables_attributes");
if (cablesTable == null)
{
return(false);
}
// get diameter value
object cableDiameter = cablesTable.GetRow(cablesFeature.OID).get_Value(1);
if (cableDiameter.ToString() != "8")
{
return(false); //if not 8 do nothing
}
schemAssociatedLink = enumLink.Next();
}
return(true); // if this far
}
public ESRI.ArcGIS.Schematic.IEnumSchematicInMemoryFeature SelectElementsToCollapse(ESRI.ArcGIS.Schematic.ISchematicInMemoryFeatureNode node, ESRI.ArcGIS.Schematic.IEnumSchematicInMemoryFeature relatedFeatures)
{
// get feature
ESRI.ArcGIS.Geodatabase.IFeature esriFeature;
esriFeature = node as ESRI.ArcGIS.Geodatabase.IFeature;
if (esriFeature == null)
{
return(null);
}
// get feature class
ESRI.ArcGIS.Geodatabase.IFeatureClass esriFeatureClass;
esriFeatureClass = esriFeature.Class as ESRI.ArcGIS.Geodatabase.IFeatureClass;
// if not the right feature class do nothing
if (esriFeatureClass.AliasName != "plants")
{
return(null);
}
bool okToCollapse = true;
relatedFeatures.Reset();
// Test if you want to collapse related element
//ESRI.ArcGIS.Schematic.ISchematicElement schemElement = relatedElements.Next();
//while ((schemElement != null) && okToCollapse)
//{
// okToCollapse = CanCollapseElement(schemElement);
// schemElement = relatedElements.Next();
//}
if (!okToCollapse)
{
return(null); // if nothing to collapse return nothing
}
else if (relatedFeatures.Count == 0)
{
EnumCollapsedElts enumCollapse = new EnumCollapsedElts(); // create a list of feature to collapse
// get incident links
ESRI.ArcGIS.Schematic.IEnumSchematicInMemoryFeatureLink enumLinks;
enumLinks = node.GetIncidentLinks(ESRI.ArcGIS.Schematic.esriSchematicEndPointType.esriSchematicOriginOrExtremityNode);
if (enumLinks == null)
{
return(enumCollapse);
}
if (enumLinks.Count > 1)
{
enumLinks.Reset();
ESRI.ArcGIS.Schematic.ISchematicInMemoryFeatureLink schemLink;
// for each link
schemLink = enumLinks.Next();
if (schemLink != null)
{
enumCollapse.Add((ESRI.ArcGIS.Schematic.ISchematicInMemoryFeature)node); // Add node to collapse
while (schemLink != null)
{
enumCollapse.Add((ESRI.ArcGIS.Schematic.ISchematicInMemoryFeature)schemLink); // Add link to collapse
schemLink = enumLinks.Next();
}
}
}
return(enumCollapse);
}
else
{
return(relatedFeatures);
}
}