Example of undefined in Javascript Heatmap Chart Control

Palette Mode

This sample visualizes the energy consumption in trillion British thermal units (btu) by the various public sectors in US government over the years. The data label is disabled in this sample, the tooltip displays the data point values. In property panel, the options are available to change palette type in Heatmap by means of radio button.

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Palette Type:
Enable Smart Legend:

In this example, you can see how to change the palette type between Fixed and Gradient types in Heatmap. The palette type can be defined using the type property in paletteSettings. Legend is enabled in this example, changing the palette mode the legend type will be automatically switched between gradient legend and list type legend. The tooltip is enabled in this example. To see the tooltip in action, hover the mouse over an item or tap an item on touch-enabled devices. Injecting Module Heatmap component features are separated into discrete feature-based modules. To use the tooltip, inject the Tooltip module using the Heatmap.Inject(Tooltip) method and to use a legend, inject the Legend module using the Heatmap.Inject(Legend) method.