sizemapping
Sizemapping is the process of translating numeric data values into visual marker sizes in maps and other visualizations. It is commonly used to convey magnitude by the area or diameter of symbols such as circles, bubbles, or squares. In cartography, sizemapping supports proportional symbol maps, where the size of each symbol reflects the value for a given location. In data visualization, it appears in bubble charts, treemaps, and network diagrams as a size encoding for a variable.
Typical methods involve normalizing data to a convenient range and then applying a scaling function to map
Key design considerations include perceptual accuracy, legend clarity, and legibility. Because human perception is more attuned
Applications span geographic visualization, market analytics, epidemiology, and any domain requiring comparative magnitude across items. Implementations