Glossary of terms

PL-2000 offset

PL-2000 is the Polish plane coordinate system in which northing coordinates may reach values of several million metres. Such large numbers can be inconvenient in CAD exports because some programs lose precision or display geometry poorly when it is far from the origin. A PL-2000 offset means subtracting a fixed value from coordinates to move the drawing closer to zero while preserving geometry and allowing the original location to be restored. When checking an export, it is important to know which offset was used so the drawing can be related back to survey coordinates.