A Heat Map Chart represents data as a grid of colored cells, where each cell sits at the intersection of two categories and its color reflects the underlying value. Built-in scrollers let users navigate large datasets without shrinking cells to unreadable sizes.
This sample visualizes 2014 sales team achievements with months on the Y-axis and team members on the X-axis. Five ordinal color-scale ranges grade performance from light yellow (under $25,000) to deep orange ($80,000+). Horizontal and vertical scrollers let you zoom into a subset of months or members while keeping cells readable. Hover any cell to see the name, sales value, and percentage in a tooltip, and use the legend to highlight cells in a given range.
Follow the step-by-step Heat Map Tutorial to learn how such charts are built. See the Heat Map documentation for all configuration options.