OdDbEvalExpr Class

Class Hierarchy

Syntax

C++

class OdDbEvalExpr : public OdDbObject;

File

DbEvalGraph.h

Description

This class represents single nodes in OdDbEvalGraph objects.

Remarks

Each node reprsents an action or expression. The OdDbEvalGraph object calls each owned node's evaluate() method while traversing the graph within the OdDbEvalGraph::evaluate() method.

Corresponding C++ library: TD_DynBlocks

See Also

OdDbEvalConnectable
OdDbEvalContext
OdDbEvalContextIterator
OdDbEvalContextPair
OdDbEvalEdgeInfo
OdDbEvalGraph

Group

OdDb Classes

Public Methods

	Name	Description
	~OdDbEvalExpr
	OdDbEvalExpr

OdDbEvalExpr Methods

	Name	Description
	activated	Notification function called whenever this Node object has been activated.
	addedToGraph	Notification function called whenever this Node object has been added to a Graph object.
	adjacentEdgeAdded	Notification function called whenever an edge has been added the Graph object.
	adjacentEdgeRemoved	Notification function called whenever an edge of this Node object has been removed.
	adjacentNodeRemoved	Notification function called whenever a Node object with a shared edge to this Node object has been removed a Graph object.
	copiedIntoGraph	Notification function called whenever a Node object has been copied to another Graph object.
	dwgInFields	Reads the .dwg file data of this object.
	dwgOutFields	Writes the .dwg file data of this object.
	dxfInFields	Reads the DXF data of this object.
	dxfOutFields	Writes the DXF data of this object.
	equals	Returns true if and only if the specified Node object is equal to this Node object.
	evaluate	Evaluates the expression represented by this Node object.
	getGraph	Opens the OdDbEvalGraph object that owns this Node object.
	graphEvalAbort	Notification function called whenever the Graph object travesal is been terminated.
	graphEvalEnd	Notification function called whenever the Graph object has been traversed.
	graphEvalStart	Notification function called whenever the Graph object is about to be traversed.
	isActivatable	Returns true if and only if this Node object can be activated.
	movedFromGraph	Notification function called whenever this Node object is about to be moved to another Graph object.
	movedIntoGraph	Notification function called whenever this Node object has been moved to another Graph object.
	nodeId	Returns the node ID of this Node object.
	ODDB_DECLARE_MEMBERS
	postInDatabase
	remappedNodeIds	OdDbEvalGraph::addGraph() calls this method on each node in the to-be-added graph just after all nodes have been added to the destination graph. The default behavior is to do nothing. Some subclasses of OdDbEvalExpr should override this function to update their references to other nodes. Nodes should not alter the map. This function is called exactly once for each node in a graph after all node IDs in a graph are changed.
	removedFromGraph	Notification function called whenever this Node object has been removed a Graph object.
	value	Returns the value of the evaluated expression of this Node object.

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