Esempio n. 1
0
        public void KKLayoutAlgorithm(
            [NotNull] IBidirectionalGraph <string, Edge <string> > graph,
            int maxCrossCount)
        {
            IDictionary <string, Size> verticesSizes = GetVerticesSizes(graph.Vertices);

            var parameters = new KKLayoutParameters
            {
                Width  = 1000,
                Height = 1000
            };

            foreach (bool exchange in new[] { true, false })
            {
                parameters.ExchangeVertices = exchange;

                int iteration = 0;
                var algorithm = new KKLayoutAlgorithm <string, Edge <string>, IBidirectionalGraph <string, Edge <string> > >(
                    graph,
                    parameters)
                {
                    Rand = new Random(12345)
                };
                algorithm.IterationEnded += (sender, args) =>
                {
                    Assert.LessOrEqual(args.Iteration, parameters.MaxIterations);
                    Assert.AreEqual(iteration++, args.Iteration);
                };

                LayoutResults results = ExecuteLayoutAlgorithm(algorithm, verticesSizes, true);
                results.CheckResult(maxCrossCount);
            }
        }
Esempio n. 2
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        public void Constructor()
        {
            var verticesPositions = new Dictionary <string, Point>();
            var graph             = new BidirectionalGraph <string, Edge <string> >();
            var algorithm         = new KKLayoutAlgorithm <string, Edge <string>, IBidirectionalGraph <string, Edge <string> > >(graph);

            AssertAlgorithmProperties(algorithm, graph);

            algorithm = new KKLayoutAlgorithm <string, Edge <string>, IBidirectionalGraph <string, Edge <string> > >(graph);
            algorithm.IterationEnded += (sender, args) => { };
            AssertAlgorithmProperties(algorithm, graph, expectedReportIterationEnd: true);

            algorithm = new KKLayoutAlgorithm <string, Edge <string>, IBidirectionalGraph <string, Edge <string> > >(graph);
            algorithm.ProgressChanged += (sender, args) => { };
            AssertAlgorithmProperties(algorithm, graph, expectedReportProgress: true);

            algorithm = new KKLayoutAlgorithm <string, Edge <string>, IBidirectionalGraph <string, Edge <string> > >(graph);
            algorithm.IterationEnded  += (sender, args) => { };
            algorithm.ProgressChanged += (sender, args) => { };
            AssertAlgorithmProperties(algorithm, graph, expectedReportIterationEnd: true, expectedReportProgress: true);

            algorithm = new KKLayoutAlgorithm <string, Edge <string>, IBidirectionalGraph <string, Edge <string> > >(graph, verticesPositions);
            AssertAlgorithmProperties(algorithm, graph, verticesPositions);

            var parameters = new KKLayoutParameters();

            algorithm = new KKLayoutAlgorithm <string, Edge <string>, IBidirectionalGraph <string, Edge <string> > >(graph, null, parameters);
            AssertAlgorithmProperties(algorithm, graph, parameters: parameters);

            algorithm = new KKLayoutAlgorithm <string, Edge <string>, IBidirectionalGraph <string, Edge <string> > >(graph, verticesPositions, parameters);
            AssertAlgorithmProperties(algorithm, graph, verticesPositions, parameters: parameters);
        }
        public void InvalidParameters()
        {
            var parameters = new KKLayoutParameters();

            Assert.Throws <ArgumentOutOfRangeException>(() => parameters.Width         = -1);
            Assert.Throws <ArgumentOutOfRangeException>(() => parameters.Height        = -1);
            Assert.Throws <ArgumentOutOfRangeException>(() => parameters.MaxIterations = -1);
            Assert.Throws <ArgumentOutOfRangeException>(() => parameters.LengthFactor  = -1);
        }
Esempio n. 4
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        /// <summary>
        /// Performs the actual layout algorithm.
        /// </summary>
        /// <param name="graph">The object containing the graph data</param>
        /// <param name="rootNode">Root node</param>
        protected override void PerformLayout(GraphMapData graph, INode rootNode)
        {
            BidirectionalGraph <string, WeightedEdge <string> > bGraph = GraphSharpUtility.GetBidirectionalGraph(graph);
            IDictionary <string, Vector> nodePositions      = GraphSharpUtility.GetNodePositions(graph);
            KKLayoutParameters           kkLayoutParameters = new KKLayoutParameters();

            KKLayoutAlgorithm <string, WeightedEdge <string>, BidirectionalGraph <string, WeightedEdge <string> > > kkLayoutAlgorithm = new KKLayoutAlgorithm <string, WeightedEdge <string>, BidirectionalGraph <string, WeightedEdge <string> > >(bGraph, nodePositions, kkLayoutParameters);

            kkLayoutAlgorithm.Compute();

            GraphSharpUtility.SetNodePositions(graph, kkLayoutAlgorithm.VertexPositions);
            GraphSharpUtility.FSAOverlapRemoval(graph);
        }
Esempio n. 5
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        public void Constructor_Throws()
        {
            var verticesPositions = new Dictionary <string, Point>();
            var parameters        = new KKLayoutParameters();

            // ReSharper disable ObjectCreationAsStatement
            // ReSharper disable AssignNullToNotNullAttribute
            Assert.Throws <ArgumentNullException>(
                () => new KKLayoutAlgorithm <string, Edge <string>, IBidirectionalGraph <string, Edge <string> > >(null, parameters));
            Assert.Throws <ArgumentNullException>(
                () => new KKLayoutAlgorithm <string, Edge <string>, IBidirectionalGraph <string, Edge <string> > >(null, verticesPositions, parameters));
            // ReSharper restore AssignNullToNotNullAttribute
            // ReSharper restore ObjectCreationAsStatement
        }
Esempio n. 6
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        public SandboxChart(ImFontPtr font)
        {
            chartSize = new Vector2(300, 300);

            KKLayoutParameters layoutParams = new KKLayoutParameters()
            {
                Height                 = chartSize.Y - (2 * padding),
                Width                  = chartSize.X - (2 * padding),
                LengthFactor           = 1,
                DisconnectedMultiplier = 2,
                ExchangeVertices       = true
            };

            layout = new GraphShape.Algorithms.Layout.KKLayoutAlgorithm <ItemNode, Edge <ItemNode>, BidirectionalGraph <ItemNode, Edge <ItemNode> > >(sbgraph, parameters: layoutParams);
            layout.Compute();
        }
        public void Clone()
        {
            var parameters       = new KKLayoutParameters();
            var clonedParameters = (KKLayoutParameters)parameters.Clone();

            Assert.AreEqual(parameters, clonedParameters);

            parameters                        = new KKLayoutParameters();
            parameters.Width                  = 400;
            parameters.Height                 = 400;
            parameters.MaxIterations          = 250;
            parameters.K                      = 2;
            parameters.ExchangeVertices       = true;
            parameters.LengthFactor           = 5;
            parameters.DisconnectedMultiplier = 0.6;
            clonedParameters                  = (KKLayoutParameters)parameters.Clone();

            Assert.AreEqual(parameters, clonedParameters);
        }
Esempio n. 8
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            public void RefineLayout(int iterations)
            {
                // Prepare state for algorithm.
                BidirectionalGraph <string, IEdge <string> > graph
                    = new BidirectionalGraph <string, IEdge <string> >(false);
                Dictionary <string, Point> positions
                    = new Dictionary <string, Point>();

                // Anything to do?
                if (BayesianNetwork.VariablesOrdered.Any() == false)
                {
                    this.Positions  = new Dictionary <string, Point>();
                    IterationCount += iterations;
                    return;
                }

                Random random = new Random(0);

                foreach (var rv in BayesianNetwork.VariablesOrdered)
                {
                    graph.AddVertex(rv.Name);

                    foreach (var child
                             in rv.Children.Select(c => BayesianNetwork.GetVariable(c)))
                    {
                        graph.AddVertex(child.Name);
                        graph.AddEdge(new Edge <string>(rv.Name, child.Name));
                    }

                    // If we have no existing layout yet, lets try to prime the
                    // alg by putting pure parents at top and pure children at
                    // bottom.
                    if (Positions.Count != 0)
                    {
                        // We have existing layout. Start with it but add slight
                        // randomness.

                        Point positionNoised;
                        if (Positions.ContainsKey(rv.Name))
                        {
                            positionNoised = Positions[rv.Name];
                        }
                        else
                        {
                            positionNoised = new Point();
                        }
                        positionNoised.X  += (random.NextDouble() - 0.5) * 0.01;
                        positionNoised.Y  += (random.NextDouble() - 0.5) * 0.01;
                        positions[rv.Name] = positionNoised;
                    }
                }

                // Initialize algorithm.
                var layoutAlgorithms
                    = new StandardLayoutAlgorithmFactory <string, IEdge <string>, IBidirectionalGraph <string, IEdge <string> > >();

                var layoutContext = new LayoutContext <string, IEdge <string>, IBidirectionalGraph <string, IEdge <string> > >(
                    graph,
                    positions,
                    _sizes,
                    LayoutMode.Simple);

                ILayoutAlgorithm <string, IEdge <string>, IBidirectionalGraph <string, IEdge <string> > > layoutAlgorithm;

                var algorithm = this._options.Algorithm;

                // Hack: SugiyamaEfficient breaks if no edges.
                if (algorithm == NetworkLayoutOptions.AlgorithmEnum.KK || graph.Edges.Count() == 0)
                {
                    var layoutParameters = new KKLayoutParameters();
                    layoutParameters.Height           = 1000;
                    layoutParameters.Width            = 1000;
                    layoutParameters.MaxIterations    = iterations;
                    layoutParameters.LengthFactor     = 1.35;
                    layoutParameters.K               *= 10.1;
                    layoutParameters.AdjustForGravity = false;

                    layoutAlgorithm = layoutAlgorithms.CreateAlgorithm("KK", layoutContext, layoutParameters);
                }
                else if (algorithm == NetworkLayoutOptions.AlgorithmEnum.SugiyamaEfficient)
                {
                    var layoutParameters = new EfficientSugiyamaLayoutParameters();
                    layoutParameters.MinimizeEdgeLength = true;
                    layoutParameters.OptimizeWidth      = true;
                    layoutParameters.WidthPerHeight     = 1.65;
                    layoutParameters.VertexDistance     = this._options.NodeSeparationTarget;
                    layoutParameters.LayerDistance      = 5.0;

                    layoutAlgorithm = layoutAlgorithms.CreateAlgorithm("EfficientSugiyama", layoutContext, layoutParameters);
                }
                else if (algorithm == NetworkLayoutOptions.AlgorithmEnum.Sugiyama)
                {
                    var layoutParameters = new SugiyamaLayoutParameters();
                    layoutParameters.MaxWidth    = 1024;
                    layoutParameters.VerticalGap = 1.0f;
                    layoutParameters.DirtyRound  = true;

                    layoutAlgorithm = layoutAlgorithms.CreateAlgorithm("Sugiyama", layoutContext, layoutParameters);
                }
                else if (algorithm == NetworkLayoutOptions.AlgorithmEnum.CompoundFDP)
                {
                    var layoutParameters = new CompoundFDPLayoutParameters();
                    layoutParameters.GravitationFactor = 0.8;
                    layoutParameters.IdealEdgeLength   = 30;
                    layoutParameters.RepulsionConstant = 300;
                    layoutAlgorithm = layoutAlgorithms.CreateAlgorithm("CompoundFDP", layoutContext, layoutParameters);
                }
                else
                {
                    throw new InvalidOperationException("Unknown layout.");
                }

                // Compute.
                layoutAlgorithm.Compute();

                // Store Results.
                this.Positions
                    = layoutAlgorithm.VertexPositions.ToDictionary(
                          (kvp) => kvp.Key,
                          (kvp) => kvp.Value
                          );

                // Done.
                IterationCount += iterations;
            }
        public void ParameterRaise()
        {
            string expectedPropertyName = null;

            var parameters = new KKLayoutParameters();

            parameters.PropertyChanged += (sender, args) =>
            {
                // ReSharper disable AccessToModifiedClosure
                if (expectedPropertyName is null)
                {
                    Assert.Fail("Must not raise.");
                }
                else
                {
                    Assert.AreEqual(expectedPropertyName, args.PropertyName);
                }
                // ReSharper restore AccessToModifiedClosure
            };

            parameters.Width = 300;

            expectedPropertyName = nameof(KKLayoutParameters.Width);
            parameters.Width     = 400;

            expectedPropertyName = null;
            parameters.Height    = 300;

            expectedPropertyName = nameof(KKLayoutParameters.Height);
            parameters.Height    = 400;

            expectedPropertyName     = null;
            parameters.MaxIterations = 200;

            expectedPropertyName     = nameof(KKLayoutParameters.MaxIterations);
            parameters.MaxIterations = 400;

            expectedPropertyName = null;
            parameters.K         = 1;

            expectedPropertyName = nameof(KKLayoutParameters.K);
            parameters.K         = 2;

            expectedPropertyName        = null;
            parameters.ExchangeVertices = false;

            expectedPropertyName        = nameof(KKLayoutParameters.ExchangeVertices);
            parameters.ExchangeVertices = true;

            expectedPropertyName    = null;
            parameters.LengthFactor = 1;

            expectedPropertyName    = nameof(KKLayoutParameters.LengthFactor);
            parameters.LengthFactor = 2;

            expectedPropertyName = null;
            parameters.DisconnectedMultiplier = 0.5;

            expectedPropertyName = nameof(KKLayoutParameters.DisconnectedMultiplier);
            parameters.DisconnectedMultiplier = 0.6;
        }
Esempio n. 10
0
        void tst_but_gen_Click(object sender, RoutedEventArgs e)
        {
            var _graph = new GraphExample();
            var v1     = new DataVertex()
            {
                Text = "Test1", ID = 1
            };

            _graph.AddVertex(v1);
            var v2 = new DataVertex()
            {
                Text = "Test2", ID = 2
            };

            _graph.AddVertex(v2);
            var v3 = new DataVertex()
            {
                Text = "Test3", ID = 3
            };

            _graph.AddVertex(v3);
            var v4 = new DataVertex()
            {
                Text = "Test4", ID = 4
            };

            _graph.AddVertex(v4);

            _graph.AddEdge(new DataEdge(v1, v2, 1)
            {
                ID = 1000
            });
            _graph.AddEdge(new DataEdge(v1, v2, 1)
            {
                ID = 1
            });


            _graph.AddEdge(new DataEdge(v1, v4, 1)
            {
                ID = 1000
            });
            _graph.AddEdge(new DataEdge(v1, v4, 1)
            {
                ID = 1
            });
            _graph.AddEdge(new DataEdge(v1, v4, 1)
            {
                ID = 2
            });
            _graph.AddEdge(new DataEdge(v2, v4, 1)
            {
                ID = 1001
            });
            _graph.AddEdge(new DataEdge(v3, v4, 1)
            {
                ID = 1002
            });
            _graph.AddEdge(new DataEdge(v3, v4, 1)
            {
                ID = 1003
            });
            _graph.AddEdge(new DataEdge(v4, v3, 1)
            {
                ID = 1004
            });
            _graph.AddEdge(new DataEdge(v4, v3, 1)
            {
                ID = 1005
            });
            _graph.AddEdge(new DataEdge(v4, v3, 1)
            {
                ID = 1006
            });

            tst_Area.ShowAllEdgesArrows(true);

            var ergTreeLayoutParameters = new KKLayoutParameters {
            };

            var logic = new LogicCoreExample();

            TSTLC       = logic;
            logic.Graph = _graph;
            logic.EnableParallelEdges = true;

            logic.ParallelEdgeDistance = 15;

            logic.DefaultLayoutAlgorithm       = LayoutAlgorithmTypeEnum.KK;
            logic.DefaultLayoutAlgorithmParams = ergTreeLayoutParameters;

            logic.DefaultOverlapRemovalAlgorithm       = OverlapRemovalAlgorithmTypeEnum.FSA;
            logic.DefaultOverlapRemovalAlgorithmParams = logic.AlgorithmFactory.CreateOverlapRemovalParameters(OverlapRemovalAlgorithmTypeEnum.FSA);

            ((GraphX.GraphSharp.Algorithms.OverlapRemoval.OverlapRemovalParameters)logic.DefaultOverlapRemovalAlgorithmParams).HorizontalGap = 140;
            ((GraphX.GraphSharp.Algorithms.OverlapRemoval.OverlapRemovalParameters)logic.DefaultOverlapRemovalAlgorithmParams).VerticalGap   = 140;
            tst_Area.GenerateGraph(_graph, true);
            //tst_Area.VertexList[v1].Visibility = System.Windows.Visibility.Collapsed;
            //tst_Area.VertexList[v2].Visibility = System.Windows.Visibility.Collapsed;
            //tst_Area.VertexList[v3].Visibility = System.Windows.Visibility.Collapsed;
            //tst_Area.VertexList[v4].SetPosition(new Point(0, 0));
            tst_Area.ShowAllEdgesLabels();
            tst_Area.AlignAllEdgesLabels();
            tst_zoomctrl.ZoomToFill();

            /* var img = new BitmapImage(new Uri(@"pack://application:,,,/ShowcaseExample;component/Images/birdy.png", UriKind.Absolute)) { CacheOption = BitmapCacheOption.OnLoad };
             * GraphAreaBase.SetX(img, -100);
             * GraphAreaBase.SetY(img, -100);
             * var image = new Image() { Source = img, Width = 100, Height = 100 };
             * var border = new Border() { BorderBrush = Brushes.Black, BorderThickness = new Thickness(2), Background = Brushes.Black, Width = 100, Height = 100 };
             * image.Visibility = System.Windows.Visibility.Visible;
             * border.Visibility = System.Windows.Visibility.Visible;
             * tst_Area.InsertCustomChildControl(0, image);
             * tst_Area.InsertCustomChildControl(0, border);*/
        }
        public void StandardFactory()
        {
            var positions     = new Dictionary <TestVertex, Point>();
            var sizes         = new Dictionary <TestVertex, Size>();
            var borders       = new Dictionary <TestVertex, Thickness>();
            var layoutTypes   = new Dictionary <TestVertex, CompoundVertexInnerLayoutType>();
            var graph         = new BidirectionalGraph <TestVertex, Edge <TestVertex> >();
            var simpleContext = new LayoutContext <TestVertex, Edge <TestVertex>, BidirectionalGraph <TestVertex, Edge <TestVertex> > >(
                graph,
                positions,
                sizes,
                LayoutMode.Simple);
            var compoundContext1 = new LayoutContext <TestVertex, Edge <TestVertex>, BidirectionalGraph <TestVertex, Edge <TestVertex> > >(
                graph,
                positions,
                sizes,
                LayoutMode.Compound);
            var compoundContext2 = new CompoundLayoutContext <TestVertex, Edge <TestVertex>, BidirectionalGraph <TestVertex, Edge <TestVertex> > >(
                graph,
                positions,
                sizes,
                LayoutMode.Compound,
                borders,
                layoutTypes);
            var nullGraphContext = new LayoutContext <TestVertex, Edge <TestVertex>, BidirectionalGraph <TestVertex, Edge <TestVertex> > >(
                null,
                positions,
                sizes,
                LayoutMode.Simple);

            var factory = new StandardLayoutAlgorithmFactory <TestVertex, Edge <TestVertex>, BidirectionalGraph <TestVertex, Edge <TestVertex> > >();

            CollectionAssert.AreEqual(
                new[]
            {
                "Circular", "Tree", "FR", "BoundedFR", "KK",
                "ISOM", "LinLog", "Sugiyama", "CompoundFDP",
                "Random"
            },
                factory.AlgorithmTypes);


            Assert.IsNull(
                factory.CreateAlgorithm(
                    string.Empty,
                    simpleContext,
                    new CircularLayoutParameters()));

            Assert.IsNull(
                factory.CreateAlgorithm(
                    "NotExist",
                    simpleContext,
                    new CircularLayoutParameters()));

            Assert.IsNull(
                factory.CreateAlgorithm(
                    "Circular",
                    nullGraphContext,
                    new CircularLayoutParameters()));

            Assert.IsInstanceOf <CircularLayoutAlgorithm <TestVertex, Edge <TestVertex>, BidirectionalGraph <TestVertex, Edge <TestVertex> > > >(
                factory.CreateAlgorithm(
                    "Circular",
                    simpleContext,
                    new CircularLayoutParameters()));

            Assert.IsInstanceOf <SimpleTreeLayoutAlgorithm <TestVertex, Edge <TestVertex>, BidirectionalGraph <TestVertex, Edge <TestVertex> > > >(
                factory.CreateAlgorithm(
                    "Tree",
                    simpleContext,
                    new SimpleTreeLayoutParameters()));

            Assert.IsInstanceOf <FRLayoutAlgorithm <TestVertex, Edge <TestVertex>, BidirectionalGraph <TestVertex, Edge <TestVertex> > > >(
                factory.CreateAlgorithm(
                    "FR",
                    simpleContext,
                    new FreeFRLayoutParameters()));

            Assert.IsInstanceOf <FRLayoutAlgorithm <TestVertex, Edge <TestVertex>, BidirectionalGraph <TestVertex, Edge <TestVertex> > > >(
                factory.CreateAlgorithm(
                    "BoundedFR",
                    simpleContext,
                    new BoundedFRLayoutParameters()));

            Assert.IsInstanceOf <KKLayoutAlgorithm <TestVertex, Edge <TestVertex>, BidirectionalGraph <TestVertex, Edge <TestVertex> > > >(
                factory.CreateAlgorithm(
                    "KK",
                    simpleContext,
                    new KKLayoutParameters()));

            Assert.IsInstanceOf <ISOMLayoutAlgorithm <TestVertex, Edge <TestVertex>, BidirectionalGraph <TestVertex, Edge <TestVertex> > > >(
                factory.CreateAlgorithm(
                    "ISOM",
                    simpleContext,
                    new ISOMLayoutParameters()));

            Assert.IsInstanceOf <LinLogLayoutAlgorithm <TestVertex, Edge <TestVertex>, BidirectionalGraph <TestVertex, Edge <TestVertex> > > >(
                factory.CreateAlgorithm(
                    "LinLog",
                    simpleContext,
                    new LinLogLayoutParameters()));

            Assert.IsInstanceOf <SugiyamaLayoutAlgorithm <TestVertex, Edge <TestVertex>, BidirectionalGraph <TestVertex, Edge <TestVertex> > > >(
                factory.CreateAlgorithm(
                    "Sugiyama",
                    simpleContext,
                    new SugiyamaLayoutParameters()));

            Assert.IsInstanceOf <CompoundFDPLayoutAlgorithm <TestVertex, Edge <TestVertex>, BidirectionalGraph <TestVertex, Edge <TestVertex> > > >(
                factory.CreateAlgorithm(
                    "CompoundFDP",
                    simpleContext,
                    new CompoundFDPLayoutParameters()));

            Assert.IsInstanceOf <RandomLayoutAlgorithm <TestVertex, Edge <TestVertex>, BidirectionalGraph <TestVertex, Edge <TestVertex> > > >(
                factory.CreateAlgorithm(
                    "Random",
                    simpleContext,
                    new RandomLayoutParameters()));

            Assert.IsNull(
                factory.CreateAlgorithm(
                    "CompoundFDP",
                    compoundContext1,
                    new CompoundFDPLayoutParameters()));

            Assert.IsNull(
                factory.CreateAlgorithm(
                    "Circular",
                    compoundContext2,
                    new CompoundFDPLayoutParameters()));

            Assert.IsInstanceOf <CompoundFDPLayoutAlgorithm <TestVertex, Edge <TestVertex>, BidirectionalGraph <TestVertex, Edge <TestVertex> > > >(
                factory.CreateAlgorithm(
                    "CompoundFDP",
                    compoundContext2,
                    new CompoundFDPLayoutParameters()));


            var testParameters     = new TestLayoutParameters();
            var circularParameters = new CircularLayoutParameters();
            ILayoutParameters createdParameters = factory.CreateParameters(string.Empty, circularParameters);

            Assert.IsNull(createdParameters);

            createdParameters = factory.CreateParameters("NotExist", circularParameters);
            Assert.IsNull(createdParameters);

            createdParameters = factory.CreateParameters("Circular", null);
            Assert.IsInstanceOf <CircularLayoutParameters>(createdParameters);
            Assert.AreNotSame(circularParameters, createdParameters);

            createdParameters = factory.CreateParameters("Circular", testParameters);
            Assert.IsInstanceOf <CircularLayoutParameters>(createdParameters);
            Assert.AreNotSame(testParameters, createdParameters);

            createdParameters = factory.CreateParameters("Circular", circularParameters);
            Assert.IsInstanceOf <CircularLayoutParameters>(createdParameters);
            Assert.AreNotSame(circularParameters, createdParameters);

            var treeParameters = new SimpleTreeLayoutParameters();

            createdParameters = factory.CreateParameters("Tree", null);
            Assert.IsInstanceOf <SimpleTreeLayoutParameters>(createdParameters);
            Assert.AreNotSame(treeParameters, createdParameters);

            createdParameters = factory.CreateParameters("Tree", testParameters);
            Assert.IsInstanceOf <SimpleTreeLayoutParameters>(createdParameters);
            Assert.AreNotSame(testParameters, createdParameters);

            createdParameters = factory.CreateParameters("Tree", treeParameters);
            Assert.IsInstanceOf <SimpleTreeLayoutParameters>(createdParameters);
            Assert.AreNotSame(treeParameters, createdParameters);

            var frParameters = new FreeFRLayoutParameters();

            createdParameters = factory.CreateParameters("FR", null);
            Assert.IsInstanceOf <FreeFRLayoutParameters>(createdParameters);
            Assert.AreNotSame(frParameters, createdParameters);

            createdParameters = factory.CreateParameters("FR", testParameters);
            Assert.IsInstanceOf <FreeFRLayoutParameters>(createdParameters);
            Assert.AreNotSame(treeParameters, createdParameters);

            createdParameters = factory.CreateParameters("FR", frParameters);
            Assert.IsInstanceOf <FreeFRLayoutParameters>(createdParameters);
            Assert.AreNotSame(frParameters, createdParameters);

            var boundedFrParameters = new BoundedFRLayoutParameters();

            createdParameters = factory.CreateParameters("BoundedFR", null);
            Assert.IsInstanceOf <BoundedFRLayoutParameters>(createdParameters);
            Assert.AreNotSame(boundedFrParameters, createdParameters);

            createdParameters = factory.CreateParameters("BoundedFR", testParameters);
            Assert.IsInstanceOf <BoundedFRLayoutParameters>(createdParameters);
            Assert.AreNotSame(treeParameters, createdParameters);

            createdParameters = factory.CreateParameters("BoundedFR", boundedFrParameters);
            Assert.IsInstanceOf <BoundedFRLayoutParameters>(createdParameters);
            Assert.AreNotSame(boundedFrParameters, createdParameters);

            var kkParameters = new KKLayoutParameters();

            createdParameters = factory.CreateParameters("KK", null);
            Assert.IsInstanceOf <KKLayoutParameters>(createdParameters);
            Assert.AreNotSame(kkParameters, createdParameters);

            createdParameters = factory.CreateParameters("KK", testParameters);
            Assert.IsInstanceOf <KKLayoutParameters>(createdParameters);
            Assert.AreNotSame(treeParameters, createdParameters);

            createdParameters = factory.CreateParameters("KK", kkParameters);
            Assert.IsInstanceOf <KKLayoutParameters>(createdParameters);
            Assert.AreNotSame(kkParameters, createdParameters);

            var isomParameters = new ISOMLayoutParameters();

            createdParameters = factory.CreateParameters("ISOM", null);
            Assert.IsInstanceOf <ISOMLayoutParameters>(createdParameters);
            Assert.AreNotSame(isomParameters, createdParameters);

            createdParameters = factory.CreateParameters("ISOM", testParameters);
            Assert.IsInstanceOf <ISOMLayoutParameters>(createdParameters);
            Assert.AreNotSame(treeParameters, createdParameters);

            createdParameters = factory.CreateParameters("ISOM", isomParameters);
            Assert.IsInstanceOf <ISOMLayoutParameters>(createdParameters);
            Assert.AreNotSame(isomParameters, createdParameters);

            var linLogParameters = new LinLogLayoutParameters();

            createdParameters = factory.CreateParameters("LinLog", null);
            Assert.IsInstanceOf <LinLogLayoutParameters>(createdParameters);
            Assert.AreNotSame(linLogParameters, createdParameters);

            createdParameters = factory.CreateParameters("LinLog", testParameters);
            Assert.IsInstanceOf <LinLogLayoutParameters>(createdParameters);
            Assert.AreNotSame(treeParameters, createdParameters);

            createdParameters = factory.CreateParameters("LinLog", linLogParameters);
            Assert.IsInstanceOf <LinLogLayoutParameters>(createdParameters);
            Assert.AreNotSame(linLogParameters, createdParameters);

            var sugiyamaParameters = new SugiyamaLayoutParameters();

            createdParameters = factory.CreateParameters("Sugiyama", null);
            Assert.IsInstanceOf <SugiyamaLayoutParameters>(createdParameters);
            Assert.AreNotSame(sugiyamaParameters, createdParameters);

            createdParameters = factory.CreateParameters("Sugiyama", testParameters);
            Assert.IsInstanceOf <SugiyamaLayoutParameters>(createdParameters);
            Assert.AreNotSame(treeParameters, createdParameters);

            createdParameters = factory.CreateParameters("Sugiyama", sugiyamaParameters);
            Assert.IsInstanceOf <SugiyamaLayoutParameters>(createdParameters);
            Assert.AreNotSame(sugiyamaParameters, createdParameters);

            var compoundFDPParameters = new CompoundFDPLayoutParameters();

            createdParameters = factory.CreateParameters("CompoundFDP", null);
            Assert.IsInstanceOf <CompoundFDPLayoutParameters>(createdParameters);
            Assert.AreNotSame(compoundFDPParameters, createdParameters);

            createdParameters = factory.CreateParameters("CompoundFDP", testParameters);
            Assert.IsInstanceOf <CompoundFDPLayoutParameters>(createdParameters);
            Assert.AreNotSame(treeParameters, createdParameters);

            createdParameters = factory.CreateParameters("CompoundFDP", compoundFDPParameters);
            Assert.IsInstanceOf <CompoundFDPLayoutParameters>(createdParameters);
            Assert.AreNotSame(compoundFDPParameters, createdParameters);

            var randomParameters = new RandomLayoutParameters();

            createdParameters = factory.CreateParameters("Random", null);
            Assert.IsInstanceOf <RandomLayoutParameters>(createdParameters);
            Assert.AreNotSame(randomParameters, createdParameters);

            createdParameters = factory.CreateParameters("Random", testParameters);
            Assert.IsInstanceOf <RandomLayoutParameters>(createdParameters);
            Assert.AreNotSame(treeParameters, createdParameters);

            createdParameters = factory.CreateParameters("Random", randomParameters);
            Assert.IsInstanceOf <RandomLayoutParameters>(createdParameters);
            Assert.AreNotSame(randomParameters, createdParameters);


            Assert.IsFalse(factory.IsValidAlgorithm(null));
            Assert.IsFalse(factory.IsValidAlgorithm(string.Empty));
            Assert.IsTrue(factory.IsValidAlgorithm("Circular"));
            Assert.IsFalse(factory.IsValidAlgorithm("circular"));
            Assert.IsTrue(factory.IsValidAlgorithm("Tree"));
            Assert.IsTrue(factory.IsValidAlgorithm("FR"));
            Assert.IsTrue(factory.IsValidAlgorithm("BoundedFR"));
            Assert.IsTrue(factory.IsValidAlgorithm("KK"));
            Assert.IsTrue(factory.IsValidAlgorithm("ISOM"));
            Assert.IsTrue(factory.IsValidAlgorithm("LinLog"));
            Assert.IsTrue(factory.IsValidAlgorithm("Sugiyama"));
            Assert.IsTrue(factory.IsValidAlgorithm("CompoundFDP"));
            Assert.IsTrue(factory.IsValidAlgorithm("Random"));


            var algorithm1 = new TestLayoutAlgorithm();

            Assert.IsEmpty(factory.GetAlgorithmType(algorithm1));

            var algorithm2 = new CircularLayoutAlgorithm <TestVertex, Edge <TestVertex>, BidirectionalGraph <TestVertex, Edge <TestVertex> > >(graph, positions, sizes, circularParameters);

            Assert.AreEqual("Circular", factory.GetAlgorithmType(algorithm2));

            var algorithm3 = new SimpleTreeLayoutAlgorithm <TestVertex, Edge <TestVertex>, BidirectionalGraph <TestVertex, Edge <TestVertex> > >(graph, positions, sizes, treeParameters);

            Assert.AreEqual("Tree", factory.GetAlgorithmType(algorithm3));

            var algorithm4 = new FRLayoutAlgorithm <TestVertex, Edge <TestVertex>, BidirectionalGraph <TestVertex, Edge <TestVertex> > >(graph, positions, frParameters);

            Assert.AreEqual("FR", factory.GetAlgorithmType(algorithm4));

            var algorithm5 = new FRLayoutAlgorithm <TestVertex, Edge <TestVertex>, BidirectionalGraph <TestVertex, Edge <TestVertex> > >(graph, positions, boundedFrParameters);

            Assert.AreEqual("BoundedFR", factory.GetAlgorithmType(algorithm5));

            var algorithm6 = new KKLayoutAlgorithm <TestVertex, Edge <TestVertex>, BidirectionalGraph <TestVertex, Edge <TestVertex> > >(graph, positions, kkParameters);

            Assert.AreEqual("KK", factory.GetAlgorithmType(algorithm6));

            var algorithm7 = new ISOMLayoutAlgorithm <TestVertex, Edge <TestVertex>, BidirectionalGraph <TestVertex, Edge <TestVertex> > >(graph, positions, isomParameters);

            Assert.AreEqual("ISOM", factory.GetAlgorithmType(algorithm7));

            var algorithm8 = new LinLogLayoutAlgorithm <TestVertex, Edge <TestVertex>, BidirectionalGraph <TestVertex, Edge <TestVertex> > >(graph);

            Assert.AreEqual("LinLog", factory.GetAlgorithmType(algorithm8));

            var algorithm9 = new SugiyamaLayoutAlgorithm <TestVertex, Edge <TestVertex>, BidirectionalGraph <TestVertex, Edge <TestVertex> > >(graph, positions, sizes, sugiyamaParameters);

            Assert.AreEqual("Sugiyama", factory.GetAlgorithmType(algorithm9));

            var algorithm10 = new CompoundFDPLayoutAlgorithm <TestVertex, Edge <TestVertex>, BidirectionalGraph <TestVertex, Edge <TestVertex> > >(graph, sizes, borders, layoutTypes);

            Assert.AreEqual("CompoundFDP", factory.GetAlgorithmType(algorithm10));

            var algorithm11 = new RandomLayoutAlgorithm <TestVertex, Edge <TestVertex>, BidirectionalGraph <TestVertex, Edge <TestVertex> > >(graph, sizes, null, randomParameters);

            Assert.AreEqual("Random", factory.GetAlgorithmType(algorithm11));


            Assert.IsFalse(factory.NeedEdgeRouting(string.Empty));
            Assert.IsTrue(factory.NeedEdgeRouting("Circular"));
            Assert.IsTrue(factory.NeedEdgeRouting("Tree"));
            Assert.IsTrue(factory.NeedEdgeRouting("FR"));
            Assert.IsTrue(factory.NeedEdgeRouting("BoundedFR"));
            Assert.IsTrue(factory.NeedEdgeRouting("KK"));
            Assert.IsTrue(factory.NeedEdgeRouting("ISOM"));
            Assert.IsTrue(factory.NeedEdgeRouting("LinLog"));
            Assert.IsFalse(factory.NeedEdgeRouting("Sugiyama"));
            Assert.IsTrue(factory.NeedEdgeRouting("CompoundFDP"));
            Assert.IsTrue(factory.NeedEdgeRouting("Random"));


            Assert.IsFalse(factory.NeedOverlapRemoval(string.Empty));
            Assert.IsFalse(factory.NeedOverlapRemoval("Circular"));
            Assert.IsFalse(factory.NeedOverlapRemoval("Tree"));
            Assert.IsTrue(factory.NeedOverlapRemoval("FR"));
            Assert.IsTrue(factory.NeedOverlapRemoval("BoundedFR"));
            Assert.IsTrue(factory.NeedOverlapRemoval("KK"));
            Assert.IsTrue(factory.NeedOverlapRemoval("ISOM"));
            Assert.IsTrue(factory.NeedOverlapRemoval("LinLog"));
            Assert.IsFalse(factory.NeedOverlapRemoval("Sugiyama"));
            Assert.IsFalse(factory.NeedOverlapRemoval("CompoundFDP"));
            Assert.IsTrue(factory.NeedOverlapRemoval("Random"));
        }