Question

The spatial data are characterised by the following forms of appearance:

Options

• Positional

• Linear

• Areal

• All the above forms.

Answer 1

All the above forms.

Explanation:

Spatial data represents real-world physical features on the Earth’s surface. In a mapping system (GIS), these features always appear in three basic geometric forms: positional, or points (like a well or city); linear, or lines (like roads or rivers); and areal, or polygons (like lakes or districts). Since every geographic feature on a map is represented by a point, line, or area, spatial data includes all of these forms.