Height-Field Surface

A type of 3D data visualisation in which a scalar value (for example, elevation, intensity, pressure, or probability) is plotted over a two-dimensional domain, producing a continuous surface that can be rendered as a mesh, contour map, or draped cloth. Height-field surfaces are widespread in STEM fields including meteorology, spectroscopy, biomedical imaging, and geoscience. Because they encode three variables with continuous spatial topology, they are particularly difficult to make accessible through standard screen-reader or tabular fallbacks.