Issue: 

What is the difference between the World Coordinate System (WCS) and the User Coordinate System (UCS)?

Solution:

  1. World Coordinate System (WCS)
    The default coordinate system is the World Coordinate System(WCS).
  2. User Coordinate System (UCS)
    In some cases, it is inconvenient to use the world coordinate system to draw. Users can define the origin and axis direction by themselves, which is the user coordinate system.
  3. Common user coordinate system usage scenarios.
    Move the origin of coordinates to facilitate coordinate annotation.

    Adjust the orientation and draw the tilt drawing.

    Set up a datum and draw the solid parts.


CN Solution★中望CAD世界坐标系和用户坐标系是什么
JP Solution


★What is the difference between WCS and UCS in ZWCAD：https://confluence.zwcad.com/pages/viewpage.action?pageId=321162910