Anurag Arpan (PPT on AutoCAD ) SlideShare
Oct 12, 2013· PRESENTATION on AutoCAD 2013 Submitted By :ANURAG ARPAN MECHANICAL (4th year) ... However, if we want to draw a 2d object, such as a plan or a section, we will use only 2 dimensions (x and y). WCS (world coordinate system) is the imaginary plane that is parallel to the ground. It is the default coordinate system.