Isopleths Map

Classified data is used to color regions delineated by isopleths (contour lines). Data values are categorized into defined classes, with each class assigned a corresponding color or texture. By dividing data into discrete categories, characteristics can be clearly and distinctly revealed. Although colloquially referred to as a “heat map,” this is not its formal name. To distinguish it from the non-map-based chart of the same name, it is recommended to use the proper term.