Refactor ElkSharp hybrid routing and document speed path
This commit is contained in:
master
@@ -0,0 +1,228 @@
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using System.Collections.Concurrent;
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using System.Diagnostics;
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using System.Globalization;
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namespace StellaOps.ElkSharp;
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internal static partial class ElkEdgeRouterIterative
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{
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internal static ElkRoutedEdge[] BuildFinalBoundarySlotCandidate(
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ElkRoutedEdge[] edges,
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ElkPositionedNode[] nodes,
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ElkLayoutDirection direction,
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double minLineClearance,
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IReadOnlyCollection<string>? restrictedEdgeIds = null,
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bool allowLateRestabilizedClosure = true)
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{
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var focusEdgeIds = restrictedEdgeIds?.Count > 0
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? restrictedEdgeIds
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: edges
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.Select(edge => edge.Id)
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.OrderBy(edgeId => edgeId, StringComparer.Ordinal)
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.ToArray();
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var useLeanRestrictedBoundarySlotPass =
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restrictedEdgeIds?.Count > 0
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&& (!allowLateRestabilizedClosure
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|| restrictedEdgeIds.Count <= 2);
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var useUltraLeanRestrictedBoundarySlotPass =
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restrictedEdgeIds?.Count > 0
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&& restrictedEdgeIds.Count <= MaxWinnerPolishBatchedRootEdges + 1;
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ElkLayoutDiagnostics.LogProgress(
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$"Boundary-slot candidate start: focus={focusEdgeIds.Count} allowLateRestabilizedClosure={allowLateRestabilizedClosure}");
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var best = edges;
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var candidate = ElkEdgePostProcessor.SnapBoundarySlotAssignments(
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edges,
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nodes,
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minLineClearance,
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restrictedEdgeIds,
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enforceAllNodeEndpoints: true);
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best = ChoosePreferredBoundarySlotRepairLayout(best, candidate, nodes);
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ElkLayoutDiagnostics.LogProgress("Boundary-slot candidate after initial snap");
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var terminalClosureCandidate = useLeanRestrictedBoundarySlotPass
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? ApplyHybridTerminalRuleCleanupRound(
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candidate,
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nodes,
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direction,
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minLineClearance,
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restrictedEdgeIds)
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: CloseRemainingTerminalViolations(
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candidate,
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nodes,
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direction,
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minLineClearance,
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restrictedEdgeIds);
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candidate = ChoosePreferredBoundarySlotRepairLayout(candidate, terminalClosureCandidate, nodes);
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best = ChoosePreferredBoundarySlotRepairLayout(best, candidate, nodes);
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ElkLayoutDiagnostics.LogProgress("Boundary-slot candidate after terminal closure");
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if (focusEdgeIds.Count > 0)
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{
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candidate = ElkEdgePostProcessor.SeparateMixedNodeFaceLaneConflicts(
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candidate,
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nodes,
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minLineClearance,
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focusEdgeIds);
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candidate = ElkEdgePostProcessor.SeparateSharedLaneConflicts(
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candidate,
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nodes,
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minLineClearance,
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focusEdgeIds);
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best = ChoosePreferredBoundarySlotRepairLayout(best, candidate, nodes);
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ElkLayoutDiagnostics.LogProgress("Boundary-slot candidate after face/shared-lane separation");
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}
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candidate = ClampBelowGraphEdges(candidate, nodes, restrictedEdgeIds);
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candidate = ElkEdgePostProcessor.NormalizeBoundaryAngles(candidate, nodes);
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candidate = ElkEdgePostProcessor.NormalizeSourceExitAngles(candidate, nodes);
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candidate = ElkEdgePostProcessor.SnapBoundarySlotAssignments(
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candidate,
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nodes,
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minLineClearance,
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restrictedEdgeIds,
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enforceAllNodeEndpoints: true);
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best = ChoosePreferredBoundarySlotRepairLayout(best, candidate, nodes);
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ElkLayoutDiagnostics.LogProgress("Boundary-slot candidate after normalization snap");
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if (useUltraLeanRestrictedBoundarySlotPass)
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{
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ElkLayoutDiagnostics.LogProgress("Boundary-slot candidate complete (ultra-lean restricted path)");
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return ChoosePreferredBoundarySlotRepairLayout(best, candidate, nodes);
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}
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candidate = ApplyPostSlotDetourClosure(candidate, nodes, minLineClearance, restrictedEdgeIds);
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best = ChoosePreferredBoundarySlotRepairLayout(best, candidate, nodes);
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ElkLayoutDiagnostics.LogProgress("Boundary-slot candidate after detour closure");
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candidate = ElkEdgePostProcessor.SnapBoundarySlotAssignments(
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candidate,
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nodes,
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minLineClearance,
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restrictedEdgeIds,
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enforceAllNodeEndpoints: true);
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best = ChoosePreferredBoundarySlotRepairLayout(best, candidate, nodes);
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ElkLayoutDiagnostics.LogProgress("Boundary-slot candidate after detour snap");
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if (useLeanRestrictedBoundarySlotPass)
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{
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ElkLayoutDiagnostics.LogProgress("Boundary-slot candidate complete (lean restricted path)");
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return ChoosePreferredBoundarySlotRepairLayout(best, candidate, nodes);
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}
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if (restrictedEdgeIds?.Count > 0)
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{
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candidate = ChoosePreferredBoundarySlotRepairLayout(
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candidate,
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CloseRemainingTerminalViolations(candidate, nodes, direction, minLineClearance, restrictedEdgeIds),
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nodes);
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best = ChoosePreferredBoundarySlotRepairLayout(best, candidate, nodes);
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candidate = ElkEdgePostProcessor.SnapBoundarySlotAssignments(
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candidate,
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nodes,
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minLineClearance,
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restrictedEdgeIds,
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enforceAllNodeEndpoints: true);
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best = ChoosePreferredBoundarySlotRepairLayout(best, candidate, nodes);
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ElkLayoutDiagnostics.LogProgress("Boundary-slot candidate after restricted terminal recheck");
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}
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candidate = ApplyLateBoundarySlotRestabilization(
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candidate,
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nodes,
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minLineClearance,
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focusEdgeIds);
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best = ChoosePreferredBoundarySlotRepairLayout(best, candidate, nodes);
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ElkLayoutDiagnostics.LogProgress("Boundary-slot candidate after late restabilization");
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candidate = ChoosePreferredBoundarySlotRepairLayout(
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candidate,
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ElkEdgePostProcessor.SnapBoundarySlotAssignments(
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candidate,
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nodes,
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minLineClearance,
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restrictedEdgeIds,
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enforceAllNodeEndpoints: true),
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nodes);
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best = ChoosePreferredBoundarySlotRepairLayout(best, candidate, nodes);
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ElkLayoutDiagnostics.LogProgress("Boundary-slot candidate after late restabilization snap");
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if (focusEdgeIds.Count > 0)
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{
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var lateHardRuleCandidate = ApplyAggressiveSharedLaneClosure(
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candidate,
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nodes,
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direction,
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minLineClearance,
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focusEdgeIds);
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lateHardRuleCandidate = ElkEdgePostProcessor.SnapBoundarySlotAssignments(
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lateHardRuleCandidate,
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nodes,
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minLineClearance,
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restrictedEdgeIds,
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enforceAllNodeEndpoints: true);
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candidate = ChoosePreferredHardRuleLayout(candidate, lateHardRuleCandidate, nodes);
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candidate = ChoosePreferredBoundarySlotRepairLayout(
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candidate,
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ElkEdgePostProcessor.SnapBoundarySlotAssignments(
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candidate,
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nodes,
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minLineClearance,
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restrictedEdgeIds,
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enforceAllNodeEndpoints: true),
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nodes);
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best = ChoosePreferredBoundarySlotRepairLayout(best, candidate, nodes);
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ElkLayoutDiagnostics.LogProgress("Boundary-slot candidate after late hard-rule closure");
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}
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if (focusEdgeIds.Count > 0
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&& (ElkEdgeRoutingScoring.CountBoundarySlotViolations(candidate, nodes) > 0
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|| ElkEdgeRoutingScoring.CountGatewaySourceExitViolations(candidate, nodes) > 0))
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{
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var lateClosureCandidate = ApplyLateFocusedBoundarySlotClosure(
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candidate,
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nodes,
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direction,
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minLineClearance,
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focusEdgeIds,
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restrictedEdgeIds);
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candidate = ChoosePreferredBoundarySlotRepairLayout(candidate, lateClosureCandidate, nodes);
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candidate = ChoosePreferredBoundarySlotRepairLayout(
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candidate,
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ElkEdgePostProcessor.SnapBoundarySlotAssignments(
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candidate,
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nodes,
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minLineClearance,
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restrictedEdgeIds,
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enforceAllNodeEndpoints: true),
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nodes);
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best = ChoosePreferredBoundarySlotRepairLayout(best, candidate, nodes);
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ElkLayoutDiagnostics.LogProgress("Boundary-slot candidate after focused late closure");
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}
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if (allowLateRestabilizedClosure
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&& focusEdgeIds.Count > 0
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&& focusEdgeIds.Count <= MaxLateRestabilizedClosureFocusEdges)
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{
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var stagedLateRestabilizedCandidate = ElkEdgePostProcessor.SnapBoundarySlotAssignments(
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edges,
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nodes,
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minLineClearance,
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restrictedEdgeIds,
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enforceAllNodeEndpoints: true);
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stagedLateRestabilizedCandidate = BuildFinalRestabilizedCandidate(
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stagedLateRestabilizedCandidate,
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nodes,
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direction,
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minLineClearance,
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restrictedEdgeIds);
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stagedLateRestabilizedCandidate = ChoosePreferredBoundarySlotRepairLayout(
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stagedLateRestabilizedCandidate,
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ElkEdgePostProcessor.SnapBoundarySlotAssignments(
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stagedLateRestabilizedCandidate,
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nodes,
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minLineClearance,
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restrictedEdgeIds,
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enforceAllNodeEndpoints: true),
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nodes);
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candidate = ChoosePreferredBoundarySlotRepairLayout(candidate, stagedLateRestabilizedCandidate, nodes);
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best = ChoosePreferredBoundarySlotRepairLayout(best, candidate, nodes);
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ElkLayoutDiagnostics.LogProgress("Boundary-slot candidate after staged late restabilized closure");
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}
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ElkLayoutDiagnostics.LogProgress("Boundary-slot candidate complete");
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return ChoosePreferredBoundarySlotRepairLayout(best, candidate, nodes);
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}
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}
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