Object Level

List of:	Discussion Topic
Subjects:	Entity, Model Object
Contents:	Application Development Manual

	Each ACIS class derived from ENTITY has a level, which is an integer representing the level of derivation of the class from ENTITY. For example, BODY is directly derived from ENTITY and has a level of 1. SPHERE is derived from SURFACE, which is derived from ENTITY, so SPHERE has a level of 2.
	The actual integer value of the level should never directly referenced, since it could change (although this is unlikely). Instead, the level's name should be referenced. Levels for each class are named <CLASS>_LEVEL.
	The following table lists the most common classes and their levels of derivation from the ENTITY class:

Class	Level Name and Value	Class	Level Name and Value
BODY	BODY_LEVEL = 1	POINT	POINT_LEVEL = 1
LUMP	LUMP_LEVEL = 1	CURVE	CURVE_LEVEL = 1
WIRE	WIRE_LEVEL = 1	PCURVE	PCURVE_LEVEL = 1
SHELL	SHELL_LEVEL = 1	SURFACE	SRUFACE_LEVEL = 1
SUBSHELL	SUBSHELL_LEVEL = 1	ELLIPSE	ELLIPSE_LEVEL = 2
FACE	FACE_LEVEL = 1	STRAIGHT	STRAIGHT_LEVEL = 2
LOOP	LOOP_LEVEL = 1	SPHERE	SPHERE_LEVEL = 2
COEDGE	COEDGE_LEVEL = 1	CONE	CONE_LEVEL = 2
EDGE	EDGE_LEVEL = 1	PLANE	PLANE_LEVEL = 2
VERTEX	VERTEX_LEVEL = 1	TORUS	TORUS_LEVEL = 2
		SPLINE	SPLINE_LEVEL = 2
TRANSFORM	TRANSFORM_LEVEL = 1	INTCURVE	INTCURVE_LEVEL = 2
		MESHSURF	MESHSURF_LEVEL = 2
ATTRIB	ATTRIB_LEVEL = 1	COMPCURV	CO2PCURVE_LEVEL = 1

PDF/APPDEV/04IDOBJ.PDF
HTM/DATA/ACIS/APPDEV/04IDOBJ/0004.HTM