- spline (Point, ...): Curve 
 
         Creates a spline from several points. 
        
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         - intersect (Curve, Curve): Point
 
         Constructs a point where two curves intersect. 
        
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         - intersect (Curve, Surface): Point
 
         Constructs a point where a curve and a surface intersect. 
        
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         - intersect (Surface, Surface): Curve
 
         Constructs the curve where two surfaces intersect. 
        
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         - curveparallel (crv: Curve, sur: Surface, 
         offset: Length, OptionalRoundMode: Boolean): Curve
 
         Constructs the curve parallel to another curve. The surface specified 
         in the second argument is the support. 
        
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		- project (toproject: 
		Point, CurveOrSurfaceSupport: Wireframe, OptionalDir: Direction): Point
 
		Projects a point onto a curve or a surface along an optional direction. 
		 
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		- project 
		(toproject: 
		Curve, support: Surface, OptionalDir: Direction): Curve
 
		Projects a curve onto a surface along an optional direction. 
		 
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         - corner (crv1: Curve, crv2: Curve, support: 
         Surface, radius: Length, orientationCrv1: Boolean, 
         orientationCrv2: Boolean, trim: Boolean): Curve
 
         Constructs a corner between two curves. Arguments 5 and 6 should be 
         used to scan the possible solutions.  
         See the Generative Shape Design User's Guide for more 
			information on corners.   
        
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         - extrude (Point, Direction, length1: Length, 
         length2: Length, orientation: Boolean): Line
 
         Extrudes a point depending on a direction. The result is a line. 
        
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         - revolve (Point, axis: Line, angle1: Angle, 
         angle2: Angle): Circle
 
         Enables you to create a circle by revolving a point according to 
         a given direction. 
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