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Eclipse Layout Kernel
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<h1>Reference</h1>
<p>The reference contains a list of three things:</p>
<ul>
<li>
<p><a href="./reference/algorithms.html">Layout algorithms</a></p>
<p>ELK ships with a number of layout algorithms you can use. To use one, you will need its identifier. To configure it to your use case, you will need to know which layout options it supports and what they do. This part of the reference has all of these information.</p>
</li>
<li>
<p><a href="./reference/options.html">Layout options</a></p>
<p>Layout options are used to configure layout algorithms. This part of the reference lists them all and describes what they do. You will probably want to go and check what you layout algorithm of choice supports first.</p>
</li>
<li>
<p><a href="./reference/groups.html">Layout option groups</a></p>
<p>Layout option groups organize layout options. This part of the reference is probably only of interest to few people.</p>
</li>
</ul>
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<ul>
<a href="./reference/algorithms.html">
<li class="navlevel-1">
Algorithms
</li>
</a>
<a href="./reference/algorithms/org-eclipse-elk-conn-gmf-layouter-Draw2D.html">
<li class="navlevel-2">
Draw2D Layout
</li>
</a>
<a href="./reference/algorithms/org-eclipse-elk-box.html">
<li class="navlevel-2">
ELK Box
</li>
</a>
<a href="./reference/algorithms/org-eclipse-elk-disco.html">
<li class="navlevel-2">
ELK DisCo
</li>
</a>
<a href="./reference/algorithms/org-eclipse-elk-fixed.html">
<li class="navlevel-2">
ELK Fixed
</li>
</a>
<a href="./reference/algorithms/org-eclipse-elk-force.html">
<li class="navlevel-2">
ELK Force
</li>
</a>
<a href="./reference/algorithms/org-eclipse-elk-layered.html">
<li class="navlevel-2">
ELK Layered
</li>
</a>
<a href="./reference/algorithms/org-eclipse-elk-mrtree.html">
<li class="navlevel-2">
ELK Mr. Tree
</li>
</a>
<a href="./reference/algorithms/org-eclipse-elk-radial.html">
<li class="navlevel-2">
ELK Radial
</li>
</a>
<a href="./reference/algorithms/org-eclipse-elk-random.html">
<li class="navlevel-2">
ELK Randomizer
</li>
</a>
<a href="./reference/algorithms/org-eclipse-elk-rectpacking.html">
<li class="navlevel-2">
ELK Rectangle Packing
</li>
</a>
<a href="./reference/algorithms/org-eclipse-elk-sporeCompaction.html">
<li class="navlevel-2">
ELK SPOrE Compaction
</li>
</a>
<a href="./reference/algorithms/org-eclipse-elk-sporeOverlap.html">
<li class="navlevel-2">
ELK SPOrE Overlap Removal
</li>
</a>
<a href="./reference/algorithms/org-eclipse-elk-stress.html">
<li class="navlevel-2">
ELK Stress
</li>
</a>
<a href="./reference/algorithms/org-eclipse-elk-graphviz-circo.html">
<li class="navlevel-2">
Graphviz Circo
</li>
</a>
<a href="./reference/algorithms/org-eclipse-elk-graphviz-dot.html">
<li class="navlevel-2">
Graphviz Dot
</li>
</a>
<a href="./reference/algorithms/org-eclipse-elk-graphviz-fdp.html">
<li class="navlevel-2">
Graphviz FDP
</li>
</a>
<a href="./reference/algorithms/org-eclipse-elk-graphviz-neato.html">
<li class="navlevel-2">
Graphviz Neato
</li>
</a>
<a href="./reference/algorithms/org-eclipse-elk-graphviz-twopi.html">
<li class="navlevel-2">
Graphviz Twopi
</li>
</a>
<a href="./reference/options.html">
<li class="navlevel-1">
Layout Options
</li>
</a>
<a href="./reference/options/org-eclipse-elk-insideSelfLoops-activate.html">
<li class="navlevel-2">
Activate Inside Self Loops
</li>
</a>
<a href="./reference/options/org-eclipse-elk-graphviz-adaptPortPositions.html">
<li class="navlevel-2">
Adapt Port Positions
</li>
</a>
<a href="./reference/options/org-eclipse-elk-layered-unnecessaryBendpoints.html">
<li class="navlevel-2">
Add Unnecessary Bendpoints
</li>
</a>
<a href="./reference/options/org-eclipse-elk-spacing-portsSurrounding.html">
<li class="navlevel-2">
Additional Port Space
</li>
</a>
<a href="./reference/options/org-eclipse-elk-layered-wrapping-additionalEdgeSpacing.html">
<li class="navlevel-2">
Additional Wrapped Edges Spacing
</li>
</a>
<a href="./reference/options/org-eclipse-elk-alignment.html">
<li class="navlevel-2">
Alignment
</li>
</a>
<a href="./reference/options/org-eclipse-elk-layered-allowNonFlowPortsToSwitchSides.html">
<li class="navlevel-2">
Allow Non-Flow Ports To Switch Sides
</li>
</a>
<a href="./reference/options/org-eclipse-elk-animate.html">
<li class="navlevel-2">
Animate
</li>
</a>
<a href="./reference/options/org-eclipse-elk-animTimeFactor.html">
<li class="navlevel-2">
Animation Time Factor
</li>
</a>
<a href="./reference/options/org-eclipse-elk-radial-wedgeCriteria.html">
<li class="navlevel-2">
Annulus Wedge Criteria
</li>
</a>
<a href="./reference/options/org-eclipse-elk-aspectRatio.html">
<li class="navlevel-2">
Aspect Ratio
</li>
</a>
<a href="./reference/options/org-eclipse-elk-bendPoints.html">
<li class="navlevel-2">
Bend Points
</li>
</a>
<a href="./reference/options/org-eclipse-elk-layered-nodePlacement-bk-edgeStraightening.html">
<li class="navlevel-2">
BK Edge Straightening
</li>
</a>
<a href="./reference/options/org-eclipse-elk-layered-nodePlacement-bk-fixedAlignment.html">
<li class="navlevel-2">
BK Fixed Alignment
</li>
</a>
<a href="./reference/options/org-eclipse-elk-box-packingMode.html">
<li class="navlevel-2">
Box Layout Mode
</li>
</a>
<a href="./reference/options/org-eclipse-elk-commentBox.html">
<li class="navlevel-2">
Comment Box
</li>
</a>
<a href="./reference/options/org-eclipse-elk-spacing-commentComment.html">
<li class="navlevel-2">
Comment Comment Spacing
</li>
</a>
<a href="./reference/options/org-eclipse-elk-spacing-commentNode.html">
<li class="navlevel-2">
Comment Node Spacing
</li>
</a>
<a href="./reference/options/org-eclipse-elk-rectpacking-rowCompaction.html">
<li class="navlevel-2">
Compact Rows
</li>
</a>
<a href="./reference/options/org-eclipse-elk-radial-compactor.html">
<li class="navlevel-2">
Compaction
</li>
</a>
<a href="./reference/options/org-eclipse-elk-radial-compactionStepSize.html">
<li class="navlevel-2">
Compaction Step Size
</li>
</a>
<a href="./reference/options/org-eclipse-elk-compaction-compactionStrategy.html">
<li class="navlevel-2">
Compaction Strategy
</li>
</a>
<a href="./reference/options/org-eclipse-elk-spacing-componentComponent.html">
<li class="navlevel-2">
Components Spacing
</li>
</a>
<a href="./reference/options/org-eclipse-elk-graphviz-concentrate.html">
<li class="navlevel-2">
Concentrate Edges
</li>
</a>
<a href="./reference/options/org-eclipse-elk-layered-compaction-connectedComponents.html">
<li class="navlevel-2">
Connected Components Compaction
</li>
</a>
<a href="./reference/options/org-eclipse-elk-disco-componentCompaction-strategy.html">
<li class="navlevel-2">
Connected Components Compaction Strategy
</li>
</a>
<a href="./reference/options/org-eclipse-elk-disco-componentCompaction-componentLayoutAlgorithm.html">
<li class="navlevel-2">
Connected Components Layout Algorithm
</li>
</a>
<a href="./reference/options/org-eclipse-elk-layered-considerModelOrder.html">
<li class="navlevel-2">
Consider model order
</li>
</a>
<a href="./reference/options/org-eclipse-elk-contentAlignment.html">
<li class="navlevel-2">
Content Alignment
</li>
</a>
<a href="./reference/options/org-eclipse-elk-layered-wrapping-correctionFactor.html">
<li class="navlevel-2">
Correction Factor for Wrapping
</li>
</a>
<a href="./reference/options/org-eclipse-elk-processingOrder-spanningTreeCostFunction.html">
<li class="navlevel-2">
Cost Function for Spanning Tree
</li>
</a>
<a href="./reference/options/org-eclipse-elk-layered-crossingMinimization-strategy.html">
<li class="navlevel-2">
Crossing Minimization Strategy
</li>
</a>
<a href="./reference/options/org-eclipse-elk-rectpacking-currentPosition.html">
<li class="navlevel-2">
Current position of a node in the order of nodes
</li>
</a>
<a href="./reference/options/org-eclipse-elk-layered-wrapping-cutting-strategy.html">
<li class="navlevel-2">
Cutting Strategy
</li>
</a>
<a href="./reference/options/org-eclipse-elk-layered-cycleBreaking-strategy.html">
<li class="navlevel-2">
Cycle Breaking Strategy
</li>
</a>
<a href="./reference/options/org-eclipse-elk-disco-debug-discoGraph.html">
<li class="navlevel-2">
DCGraph
</li>
</a>
<a href="./reference/options/org-eclipse-elk-debugMode.html">
<li class="navlevel-2">
Debug Mode
</li>
</a>
<a href="./reference/options/org-eclipse-elk-stress-desiredEdgeLength.html">
<li class="navlevel-2">
Desired Edge Length
</li>
</a>
<a href="./reference/options/org-eclipse-elk-rectpacking-desiredPosition.html">
<li class="navlevel-2">
Desired index of node
</li>
</a>
<a href="./reference/options/org-eclipse-elk-direction.html">
<li class="navlevel-2">
Direction
</li>
</a>
<a href="./reference/options/org-eclipse-elk-layered-directionCongruency.html">
<li class="navlevel-2">
Direction Congruency
</li>
</a>
<a href="./reference/options/org-eclipse-elk-layered-priority-direction.html">
<li class="navlevel-2">
Direction Priority
</li>
</a>
<a href="./reference/options/org-eclipse-elk-graphviz-neatoModel.html">
<li class="navlevel-2">
Distance Model
</li>
</a>
<a href="./reference/options/org-eclipse-elk-layered-wrapping-multiEdge-distancePenalty.html">
<li class="navlevel-2">
Distance Penalty When Improving Cuts
</li>
</a>
<a href="./reference/options/org-eclipse-elk-force-repulsion.html">
<li class="navlevel-2">
Eades Repulsion
</li>
</a>
<a href="./reference/options/org-eclipse-elk-layered-edgeLabels-centerLabelPlacementStrategy.html">
<li class="navlevel-2">
Edge Center Label Placement Strategy
</li>
</a>
<a href="./reference/options/org-eclipse-elk-layered-spacing-edgeEdgeBetweenLayers.html">
<li class="navlevel-2">
Edge Edge Between Layer Spacing
</li>
</a>
<a href="./reference/options/org-eclipse-elk-edgeLabels-placement.html">
<li class="navlevel-2">
Edge Label Placement
</li>
</a>
<a href="./reference/options/org-eclipse-elk-layered-edgeLabels-sideSelection.html">
<li class="navlevel-2">
Edge Label Side Selection
</li>
</a>
<a href="./reference/options/org-eclipse-elk-spacing-edgeLabel.html">
<li class="navlevel-2">
Edge Label Spacing
</li>
</a>
<a href="./reference/options/org-eclipse-elk-layered-spacing-edgeNodeBetweenLayers.html">
<li class="navlevel-2">
Edge Node Between Layers Spacing
</li>
</a>
<a href="./reference/options/org-eclipse-elk-spacing-edgeNode.html">
<li class="navlevel-2">
Edge Node Spacing
</li>
</a>
<a href="./reference/options/org-eclipse-elk-edgeRouting.html">
<li class="navlevel-2">
Edge Routing
</li>
</a>
<a href="./reference/options/org-eclipse-elk-spacing-edgeEdge.html">
<li class="navlevel-2">
Edge Spacing
</li>
</a>
<a href="./reference/options/org-eclipse-elk-edge-thickness.html">
<li class="navlevel-2">
Edge Thickness
</li>
</a>
<a href="./reference/options/org-eclipse-elk-edge-type.html">
<li class="navlevel-2">
Edge Type
</li>
</a>
<a href="./reference/options/org-eclipse-elk-graphviz-epsilon.html">
<li class="navlevel-2">
Epsilon
</li>
</a>
<a href="./reference/options/org-eclipse-elk-expandNodes.html">
<li class="navlevel-2">
Expand Nodes
</li>
</a>
<a href="./reference/options/org-eclipse-elk-layered-nodePlacement-favorStraightEdges.html">
<li class="navlevel-2">
Favor Straight Edges Over Balancing
</li>
</a>
<a href="./reference/options/org-eclipse-elk-layered-feedbackEdges.html">
<li class="navlevel-2">
Feedback Edges
</li>
</a>
<a href="./reference/options/org-eclipse-elk-polyomino-fill.html">
<li class="navlevel-2">
Fill Polyominoes
</li>
</a>
<a href="./reference/options/org-eclipse-elk-rectpacking-expandToAspectRatio.html">
<li class="navlevel-2">
Fit Aspect Ratio
</li>
</a>
<a href="./reference/options/org-eclipse-elk-nodeSize-fixedGraphSize.html">
<li class="navlevel-2">
Fixed Graph Size
</li>
</a>
<a href="./reference/options/org-eclipse-elk-stress-fixed.html">
<li class="navlevel-2">
Fixed Position
</li>
</a>
<a href="./reference/options/org-eclipse-elk-font-name.html">
<li class="navlevel-2">
Font Name
</li>
</a>
<a href="./reference/options/org-eclipse-elk-font-size.html">
<li class="navlevel-2">
Font Size
</li>
</a>
<a href="./reference/options/org-eclipse-elk-force-model.html">
<li class="navlevel-2">
Force Model
</li>
</a>
<a href="./reference/options/org-eclipse-elk-force-temperature.html">
<li class="navlevel-2">
FR Temperature
</li>
</a>
<a href="./reference/options/org-eclipse-elk-layered-wrapping-strategy.html">
<li class="navlevel-2">
Graph Wrapping Strategy
</li>
</a>
<a href="./reference/options/org-eclipse-elk-layered-crossingMinimization-greedySwitch-activationThreshold.html">
<li class="navlevel-2">
Greedy Switch Activation Threshold
</li>
</a>
<a href="./reference/options/org-eclipse-elk-layered-crossingMinimization-greedySwitch-type.html">
<li class="navlevel-2">
Greedy Switch Crossing Minimization
</li>
</a>
<a href="./reference/options/org-eclipse-elk-layered-crossingMinimization-greedySwitchHierarchical-type.html">
<li class="navlevel-2">
Greedy Switch Crossing Minimization (hierarchical)
</li>
</a>
<a href="./reference/options/org-eclipse-elk-layered-crossingMinimization-hierarchicalSweepiness.html">
<li class="navlevel-2">
Hierarchical Sweepiness
</li>
</a>
<a href="./reference/options/org-eclipse-elk-hierarchyHandling.html">
<li class="navlevel-2">
Hierarchy Handling
</li>
</a>
<a href="./reference/options/org-eclipse-elk-hierarchyHandling_org-eclipse-elk-graphviz-dot.html">
<li class="navlevel-2">
Hierarchy Handling (Graphviz Dot)
</li>
</a>
<a href="./reference/options/org-eclipse-elk-layered-highDegreeNodes-treeHeight.html">
<li class="navlevel-2">
High Degree Node Maximum Tree Height
</li>
</a>
<a href="./reference/options/org-eclipse-elk-layered-highDegreeNodes-threshold.html">
<li class="navlevel-2">
High Degree Node Threshold
</li>
</a>
<a href="./reference/options/org-eclipse-elk-layered-highDegreeNodes-treatment.html">
<li class="navlevel-2">
High Degree Node Treatment
</li>
</a>
<a href="./reference/options/org-eclipse-elk-hypernode.html">
<li class="navlevel-2">
Hypernode
</li>
</a>
<a href="./reference/options/org-eclipse-elk-layered-wrapping-multiEdge-improveCuts.html">
<li class="navlevel-2">
Improve Cuts
</li>
</a>
<a href="./reference/options/org-eclipse-elk-layered-wrapping-multiEdge-improveWrappedEdges.html">
<li class="navlevel-2">
Improve Wrapped Edges
</li>
</a>
<a href="./reference/options/org-eclipse-elk-spacing-individual.html">
<li class="navlevel-2">
Individual Spacing
</li>
</a>
<a href="./reference/options/org-eclipse-elk-spacing-individual_org-eclipse-elk-layered.html">
<li class="navlevel-2">
Individual Spacing (ELK Layered)
</li>
</a>
<a href="./reference/options/org-eclipse-elk-edgeLabels-inline.html">
<li class="navlevel-2">
Inline Edge Labels
</li>
</a>
<a href="./reference/options/org-eclipse-elk-insideSelfLoops-yo.html">
<li class="navlevel-2">
Inside Self Loop
</li>
</a>
<a href="./reference/options/org-eclipse-elk-interactive.html">
<li class="navlevel-2">
Interactive
</li>
</a>
<a href="./reference/options/org-eclipse-elk-interactiveLayout.html">
<li class="navlevel-2">
interactive Layout
</li>
</a>
<a href="./reference/options/org-eclipse-elk-layered-interactiveReferencePoint.html">
<li class="navlevel-2">
Interactive Reference Point
</li>
</a>
<a href="./reference/options/org-eclipse-elk-stress-iterationLimit.html">
<li class="navlevel-2">
Iteration Limit
</li>
</a>
<a href="./reference/options/org-eclipse-elk-force-iterations.html">
<li class="navlevel-2">
Iterations
</li>
</a>
<a href="./reference/options/org-eclipse-elk-graphviz-iterationsFactor.html">
<li class="navlevel-2">
Iterations Factor
</li>
</a>
<a href="./reference/options/org-eclipse-elk-junctionPoints.html">
<li class="navlevel-2">
Junction Points
</li>
</a>
<a href="./reference/options/org-eclipse-elk-graphviz-labelAngle.html">
<li class="navlevel-2">
Label Angle
</li>
</a>
<a href="./reference/options/org-eclipse-elk-graphviz-labelDistance.html">
<li class="navlevel-2">
Label Distance
</li>
</a>
<a href="./reference/options/org-eclipse-elk-labelManager.html">
<li class="navlevel-2">
Label Manager
</li>
</a>
<a href="./reference/options/org-eclipse-elk-labels-labelManager.html">
<li class="navlevel-2">
Label Manager
</li>
</a>
<a href="./reference/options/org-eclipse-elk-spacing-labelNode.html">
<li class="navlevel-2">
Label Node Spacing
</li>
</a>
<a href="./reference/options/org-eclipse-elk-spacing-labelPort.html">
<li class="navlevel-2">
Label Port Spacing
</li>
</a>
<a href="./reference/options/org-eclipse-elk-spacing-labelLabel.html">
<li class="navlevel-2">
Label Spacing
</li>
</a>
<a href="./reference/options/org-eclipse-elk-layered-layering-coffmanGraham-layerBound.html">
<li class="navlevel-2">
Layer Bound
</li>
</a>
<a href="./reference/options/org-eclipse-elk-layered-layering-layerChoiceConstraint.html">
<li class="navlevel-2">
Layer Choice Constraint
</li>
</a>
<a href="./reference/options/org-eclipse-elk-layered-layering-layerConstraint.html">
<li class="navlevel-2">
Layer Constraint
</li>
</a>
<a href="./reference/options/org-eclipse-elk-layered-layering-layerId.html">
<li class="navlevel-2">
Layer ID
</li>
</a>
<a href="./reference/options/org-eclipse-elk-graphviz-layerSpacingFactor.html">
<li class="navlevel-2">
Layer Spacing Factor
</li>
</a>
<a href="./reference/options/org-eclipse-elk-algorithm.html">
<li class="navlevel-2">
Layout Algorithm
</li>
</a>
<a href="./reference/options/org-eclipse-elk-layoutAncestors.html">
<li class="navlevel-2">
Layout Ancestors
</li>
</a>
<a href="./reference/options/org-eclipse-elk-stress-dimension.html">
<li class="navlevel-2">
Layout Dimension
</li>
</a>
<a href="./reference/options/org-eclipse-elk-partitioning-partition.html">
<li class="navlevel-2">
Layout Partition
</li>
</a>
<a href="./reference/options/org-eclipse-elk-partitioning-activate.html">
<li class="navlevel-2">
Layout Partitioning
</li>
</a>
<a href="./reference/options/org-eclipse-elk-layered-nodePlacement-linearSegments-deflectionDampening.html">
<li class="navlevel-2">
Linear Segments Deflection Dampening
</li>
</a>
<a href="./reference/options/org-eclipse-elk-disco-debug-discoPolys.html">
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Manually Specified Cuts
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Maximal Animation Time
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Merge Edges
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Merge Hierarchy-Crossing Edges
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Minimal Animation Time
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Node Flexibility
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Node Flexibility Default
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Node Label Padding
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Node Label Placement
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Node Layering Strategy
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Node Node Between Layers Spacing
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Node Placement Strategy
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Node Promotion Strategy
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Node Self Loop Spacing
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Node Size Constraints
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Node Size Minimum
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Node Size Options
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Node Spacing
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Omit Node Micro Layout
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Only Area Approximation
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Optimization Goal
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Order ID
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Orthogonal Compaction
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Polyomino Traversal Strategy
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Port Alignment (East)
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Port Alignment (North)
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Port Alignment (South)
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Port Alignment (West)
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Port Border Offset
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Port Constraints
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Port Index
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Port Label Placement
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Port Labels Next to Port
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Port Side
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Port Sorting Strategy
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Port Spacing
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Position
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Position Choice Constraint
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Position ID
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Post Compaction Constraint Calculation
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Post Compaction Strategy
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Priority (ELK Box)
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Priority (ELK Force)
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Priority (ELK Layered)
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Priority (ELK Mr. Tree)
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Progress Bar
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Radius
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Randomization Seed
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Repulsive Power
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Root node for spanning tree construction
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Root selection for spanning tree
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Self-Loop Ordering
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Spline Routing Mode
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Treat Port Labels as Group
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Tree Construction Strategy
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Underlying Layout Algorithm
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Upper Bound On Width [MinWidth Layerer]
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Upper Layer Estimation Scaling Factor [MinWidth Layerer]
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compaction
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compaction
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insideSelfLoops
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layering
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nodeSize
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partitioning
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polyomino
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port
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priority
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processingOrder
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