12- Bricscad . Bricscad, . , .
.1 2D ( )
, , (. . 2a ) ( Parametric/2D Constraints/Parallel). , (. 2b). , (!) , ( 2c).
. 2. ( )
2D
. , . Parametric/2D Constraints. , , .. , . , , , . , ( , , ), . ( , ).
, () . - , .
2D , , , , , . , , , , - , .
3D
3D , , . . , 3D (. . 3 ).
. 3. 3D ( )
2D 3D , .