Topological Entities

IGES Entity	DATAKIT Class	Remarks
Boundary (141)	Dtk_Loop
Curve on a Parametric Surface (142)	Dtk_Loop
Bounded Surface (143)	Dtk_Face
Trimmed Parametric Surface (144)	Dtk_Face
Solid (186)	Dtk_Body	Manifold Solid entity ( Topology structure )
Vertex (502)		Used by Solid (186)
Edge (504)		Used by Solid (186)
Loop (508)		Used by Solid (186)
Face (510)		Used by Solid (186)
Shell (514)	Dtk_Body	Used by Solid (186) or independant

Surface Entities

IGES Entity	DATAKIT Class	Remarks
Plane (108)	Dtk_PlaneSurface
Parametric Spline Surface (114)	Dtk_NurbsSurface
Ruled Surface (118)	Dtk_RuledSurface
Surface of Revolution (120)	Dtk_StandardRevolutionSurface
Tabulated Cylinder (122)	Dtk_LinearExtrusionSurface
Rational B-Spline Surface (128)	Dtk_NurbsSurface
Offset Surface (140)	Dtk_OffsetSurface
Plane Surface (190)	Dtk_PlaneSurface
Right Circular Cylindrical Surface (192)	Dtk_CylindricalSurface
Right Circular Conical Surface (194)	Dtk_ConicalSurface
Spherical Surface (196)	Dtk_SphericalSurface
Toroidal Surface (198)	Dtk_ToroidalSurface

IGES Entity	DATAKIT Class	Remarks
Circular Arc (100)	Dtk_Ellipse
Composite Curve (102)	Dtk_Body with wire
Conic Arc (104)	Dtk_Ellipse / Dtk_Parabola / Dtk_Hyperbola
Single Line (110)	Dtk_Line
Parametric Spline Curve (112)	Dtk_NurbsCurve
Copious Data (106)	Dtk_Polyline
Rational B-Spline Curve (126)	Dtk_NurbsCurve
Offset Curve (130)	Dtk_NurbsCurve

IGES Entity	DATAKIT Class	Remarks
Point (116)	Dtk_Point

IGES Entity	DATAKIT Class	Remarks
Subfigure Definition (308)/Singular Subfigure Instance (408)	Dtk_Component
Associativity Instance (402)	Dtk_Node	Form 7
External Reference (416)	Dtk_Component	external reference

IGES Entity

DATAKIT Class

Remarks

Color in Directory Entry

ColorId into Dtk_Info

Layer in Directory Entry

LayerId into Dtk_Info

Blanked Status in Directory Entry

BlankedStatus into Dtk_Info

IGES Entity

DATAKIT Class

Remarks

Color Definition (314)

New entry in color table