In which order should GIS data be displayed from top to bottom?

The correct order for displaying GIS data from top to bottom is points, lines, and then polygons. This arrangement is based on the visibility and hierarchy of geographic features when rendered on a map.

Points are the smallest and most foundational elements in GIS, representing discrete locations or features, such as cities or landmarks. When displayed on a map, points are often placed at the top layer because they typically need to be immediately recognizable and accessible to users.

Lines represent linear features such as roads or rivers, which naturally follow points in the display hierarchy. They are slightly more complex than points but usually less visually dominant than polygons. Therefore, they are displayed next in the order.

Polygons, which represent areas such as lakes, land use zones, or property boundaries, are depicted as the base layer. They are larger and can obscure underlying features. Because of their size and coverage, polygons are logically positioned at the bottom of the display order, ensuring that they do not hide smaller, more critical points or lines that need visibility.

This layering structure allows for clarity and effective communication of spatial information, making it easier for map users to interpret the geography being represented.