Layout

3 Sep 20207 minutes to read

You can decide the visual representation of nodes belonging to all the TreeMap levels using the LayoutType property of TreeMap.

The following four different types of layout are available in TreeMap:

• Squarified
• SliceAndDiceAuto
• SliceAndDiceHorizontal
• SliceAndDiceVertical

Squarified

The Squarified layout creates rectangles with best aspect ratio.

C#

treeMap.LayoutType = Com.Syncfusion.Treemap.Enums.LayoutType.Squarified;

SliceAndDiceAuto

The SliceAndDiceAuto layout creates rectangles with high aspect ratio and displays them sorted both horizontally and vertically.

C#

treeMap.LayoutType = Com.Syncfusion.Treemap.Enums.LayoutType.SliceAndDiceAuto;

SliceAndDiceHorizontal

The SliceAndDiceHorizontal layout creates rectangles with high aspect ratio and displays them sorted horizontally.

C#

treeMap.LayoutType = Com.Syncfusion.Treemap.Enums.LayoutType.SliceAndDiceHorizontal;

SliceAndDiceVertical

The SliceAndDiceVertical layout creates rectangles with high aspect ratio and displays them sorted vertically.

C#

treeMap.LayoutType = Com.Syncfusion.Treemap.Enums.LayoutType.SliceAndDiceVertical;

The following code is the complete code for squarified layout type.

C#

SfTreeMap treeMap = new SfTreeMap(this);
            treeMap.ColorValuePath = "Growth";
            treeMap.WeightValuePath = "Population";
            treeMap.LayoutType = Com.Syncfusion.Treemap.Enums.LayoutType.Squarified;
            treeMap.ShowTooltip = true;
           
            LeafItemSetting leafItemSetting = new LeafItemSetting();
            leafItemSetting.ShowLabels = true;
            leafItemSetting.Gap = 2;
            leafItemSetting.LabelPath = "Country";
            treeMap.LeafItemSettings = leafItemSetting;

            TreeMapFlatLevel flatLevel = new TreeMapFlatLevel();
            flatLevel.HeaderHeight = 20;
            flatLevel.GroupPath = "Continent";
            flatLevel.GroupGap = 5;
            flatLevel.ShowHeader = true;
            flatLevel.GroupStrokeColor = Color.Gray;
            flatLevel.GroupStrokeWidth = 1;
            flatLevel.HeaderStyle = new Style() { TextColor = Color.Black };
            treeMap.Levels.Add(flatLevel);

            LegendSetting legendSettings = new LegendSetting();
            legendSettings.ShowLegend = true;
            legendSettings.LegendSize = new Size(700, 45);
            legendSettings.LabelStyle = new Style() { TextColor = Color.Black };
            treeMap.LegendSettings = legendSettings;

            RangeColorMapping rangeColorMapping = new RangeColorMapping();

            Range range1 = new Range();
            range1.From = 0;
            range1.To = 1;
            range1.Color = Color.ParseColor("#77D8D8");
            range1.LegendLabel = "1 % Growth";

            Range range2 = new Range();
            range2.From = 0;
            range2.To = 2;
            range2.Color = Color.ParseColor("#AED960");
            range2.LegendLabel = "2 % Growth";

            Range range3 = new Range();
            range3.From = 0;
            range3.To = 3;
            range3.Color = Color.ParseColor("#FFAF51");
            range3.LegendLabel = "3 % Growth";

            Range range4 = new Range();
            range4.From = 0;
            range4.To = 4;
            range4.Color = Color.ParseColor("#F3D240");
            range4.LegendLabel = "4 % Growth";

            rangeColorMapping.Ranges.Add(range1);
            rangeColorMapping.Ranges.Add(range2);
            rangeColorMapping.Ranges.Add(range3);
            rangeColorMapping.Ranges.Add(range4);

            treeMap.LeafItemColorMapping = rangeColorMapping;
            treeMap.DataSource = GetDataSource();
            SetContentView(treeMap);