How to: Color TreeMap Using Range Colorizer

• Nov 13, 2018

To color tree map items using the Range Colorizer, assign a newly created TreeMapRangeColorizer object to the TreeMapControl.Colorizer property. Then, specify the required palette using the TreeMapPaletteColorizerBase.Palette property. Finally, add the required range stops to the TreeMapRangeColorizer.RangeStops property.

View Example

Form1.cs

void CreateTreeMapColorizer() {
    TreeMapRangeColorizer colorizer = new TreeMapRangeColorizer();
    colorizer.Palette = Palette.CreatePalette( 
        Color.FromArgb(110, 201, 90),
        Color.FromArgb(227, 227, 51),
        Color.FromArgb(255, 93, 23)
    );
    colorizer.RangeStops.Add(1);
    colorizer.RangeStops.Add(64);
    colorizer.RangeStops.Add(256);
    colorizer.RangeStops.Add(1024);

    treeMap.Colorizer = colorizer;
}

Form1.vb

Private Sub CreateTreeMapColorizer()
    Dim colorizer As New TreeMapRangeColorizer()
    colorizer.Palette = Palette.CreatePalette(Color.FromArgb(110, 201, 90), Color.FromArgb(227, 227, 51), Color.FromArgb(255, 93, 23))
    colorizer.RangeStops.Add(1)
    colorizer.RangeStops.Add(64)
    colorizer.RangeStops.Add(256)
    colorizer.RangeStops.Add(1024)

    treeMap.Colorizer = colorizer
End Sub