Extent
Overview
Extent is the geographic area covered by a spatial dataset or map, typically defined by the minimum and maximum coordinates (bounding box) of the data. Extent describes the outer boundaries of where data exists and is fundamental to understanding data coverage and setting map views.
Key Concepts
Bounding box is the rectangular extent defined by min/max X and Y. Minimum bounding rectangle (MBR) is the smallest rectangle enclosing all features. Data extent is the actual area covered by features. Display extent is the current view shown on screen. Full extent is the complete area of all layers in a map.
Representation
Extent: (minX, minY, maxX, maxY)
Example: (-74.25, 40.50, -73.70, 40.92)
(West, South, East, North)
Appendix
Created: 2025-12-13 | Modified: 2025-12-13