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 IStdShape_DG Interface
CylinderDiskSphereBoxTorusTriangleRectanglePolygonLineLineInfCircleArcEllipse InteInterface for creation of basic shapes. Use IModel_DG.AddEntity() or IEntity_DG.AddChild() to add the the returned IEntity_DG interface to model of a view for it to appear in the 3D scene 
 	IEntity_DG Cylinder(double baseRadius, double topRadius, double height) Axis of the cylinder will coinside with the global Z axis 
 	IEntity_DG Disk(double innerRadius, double outerRadius) A disk at the global x,y plane 
 	IEntity_DG Sphere(double radius) 
 	IEntity_DG Box(double width, double height, double length) A box [0, width]x[0, height]x[0, length] 
 	IEntity_DG Torus(double radius, double radiusTube) Axis of the torus will coinside with the global Z axis 
 	IEntity_DG Triangle(Point_DG pt0, Point_DG pt1, Point_DG pt2) 
 	IEntity_DG Rectangle(double width, double height) A rectangle [0, width]x[0, height] in the global x,y plane 
 	IEntity_DG Polygon(Point_DG pt0, Point_DG pt1, Point_DG pt2, Point_DG pt3) 
 	IEntity_DG Line(Point_DG pt0, Point_DG pt1) 
 	IEntity_DG LineInf(Point_DG origin, Vect_DG direction, bool ray) 
 	IEntity_DG Circle(double radius) A circle in the global x,y plane 
 	IEntity_DG Arc Arc(double radius, double angle) An arc of a circle in the global x,y plane with center at the global origin and angle with the X axis in range [0, angle] 
 	IEntity_DG Ellipse(double a, double b) An ellipse in the global x,y plane 
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