Chapter 2 — DXF Entities and Geometry
DXF entities use group codes to represent coordinates and geometric properties. For example, group codes 10, 20, 30 define the X, Y, and Z coordinates of a point. Additional codes describe other geometric attributes depending on the entity type.
Example: CIRCLE entity
0
CIRCLE
8
Layer1
10
100.0
20
100.0
40
25.0This circle has a center at (100,100) and a radius of 25 units.