A survey in which curvature of earth is taken into account.

ایک سروے جس میں زمین کی گھماؤ کو مدنظر رکھا جاتا ہے۔

Plane Survey

Geodetic Survey

City Survey

Cadestral

Accounts for Earth's curvature using spherical trigonometry,

essential for large-scale mapping (100+ km²),

with modern GPS achieving cm-level accuracy (WGS84 standard since 1984).