Geometric measurement on spatial features includes counting, distance and area size computations. Here we discuss such measurements in a planar spatial reference system. We limit ourselves to geometric measurements and do not include attribute data measurement, which is typically performed in a database query language. Measurements on vector data are more advanced (and thus also more complex) than those on raster data.
Classify and explain spatial analysis functions (measurements, classification, overlay, neighbourhood and connectivity) in a raster and vector environment (level 1 and 2).