Fullarea

Fullarea is a term used in mathematics, computer graphics, GIS, and data analysis to denote the complete spatial extent or total area of a given region, object, or dataset, as opposed to a partial, cropped, or masked subset. In geometry, full area refers to the measure of the entire two-dimensional region enclosed by a closed boundary, which can be computed using methods appropriate to the shape, such as the shoelace formula for polygons or integration for curved shapes. In composite figures, the full area is the sum of constituent parts, accounting for overlaps with sign conventions.

In software and graphics libraries, fullarea often appears as a flag or parameter that indicates whether operations should consider the entire region of interest rather than a restricted portion. For example, checking the full area of a polygon may entail testing consistency across all vertices, whereas a partial area could focus on a bounding box or a clipping mask.

In raster and vector data contexts, fullarea can refer to the total number of grid cells or the total geometric area within the boundary, respectively. The value is dependent on the coordinate reference system or unit convention used, so accurate comparison requires consistent projection. Notable related concepts include area calculation, bounding box, mask, and region of interest.

The term is not tied to a single standard definition and usage can vary by field or software, but it generally conveys the idea of the complete, unmasked extent of a region.