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`TAtlasGraphEdge`

A directed graph edge: source and target node IDs.

Record Unit Atlas.Graph · Product Atlas VCL

Description

Returned by TAtlasGraph.Edges as a copy. Create and delete edges with AddEdge and DeleteEdge.

Members

Member	Kind	What it does
`SourceID`	field	ID of the node the edge starts at.
`TargetID`	field	ID of the node the edge points to.

Fields

`SourceID` field

SourceID, TargetID: Integer;

ID of the node the edge starts at.

`TargetID` field

SourceID, TargetID: Integer;

ID of the node the edge points to.

Examples

Children of a node

Follows the outgoing edges of one node.

uses System.Generics.Collections, Atlas.Graph;

function ChildrenOf(Graph: TAtlasGraph; ID: Integer): TArray<Integer>;
var
  Edge: TAtlasGraphEdge;
  List: TList<Integer>;
begin
  List := TList<Integer>.Create;
  try
    for Edge in Graph.Edges do
      if Edge.SourceID = ID then List.Add(Edge.TargetID);
    Result := List.ToArray;
  finally
    List.Free;
  end;
end;

TAtlasGraph · TAtlasGraphNode

Also in Atlas VCL

TAtlasTable · TAtlasGrid · TAtlasValueEdit · TAtlasTree · TAtlasWorkbook · TAtlasSheetGrid · TAtlasPivot · TAtlasInspector · TAtlasRichEdit · TAtlasSpellChecker · TAtlasChart · TAtlasGauge · TAtlasThemer · TAtlasWizard · TAtlasWorkspace · TAtlasCommandBar · TAtlasActionTile · TAtlasTileBoard · TAtlasNavigation · TAtlasMap · TAtlasGraph · TAtlasDiagram · TAtlasPrintDocument · TAtlasSchedule · TAtlasScheduler · TAtlasTaskPlan · TAtlasGantt · TAtlasPdfDocument · TAtlasPdfViewer

TAtlasGraphEdge