Line Constructors

line(Point, Point): Line

Creates a line from two points.
Example
Open_body.1\Line.1   =
line(Open_body.1\Point.1, Open_body.1\Point.2)

line(pt: Point, dir: Direction, start: Length, end: Length, orientation: Boolean) : Line

Creates a line passing through a point and parallel to a direction.
The third and fourth arguments are used to specify the start and end points.
The last argument allows you to reverse the line direction.
Example
Open_body.1\Line.2   =
line( Open_body.1\Point.2, direction(`zx plane`), 0mm, 20mm, true)

lineangle(crv: Curve, sur: Surface, pt: Point, geodesic: Boolean, start: Length, end: Length, angle:
 Angle, orientation: Boolean) : Line

Creates a line passing through a point,
tangent to a surface and making a given angle with a curve.
When the geodesic argument is set to true, a geodesic line is created(projected) onto the surface.
Example
Open_body.1\Line.3   =
lineangle( Open_body.1\Spline.1 , Open_body.1\Extrude.1 , Open_body.1\Point.4 , false,
 0mm , 50mm , 80deg , false)

linetangent(crv: Curve, pt:Point, start:Length, end:Length, orientation:Boolean) : Line

Creates a line tangent to curve at a given point.
Example
Open_body.1\Line.5   =
linetangent( Open_body.1\Spline.1, Open_body.1\Point.6 ,0mm, 30mm, true )

linenormal(sur:Surface, pt:Point, start:Length, end:Length, orientation:Boolean) : Line

Creates a line normal to a surface at a given point.

Creates a line normal to a curve at a given point.
The line is created  in the plane which contains the tangent vector.

binormal(crv: Curve, pt: Point) : Line

Creates a line normal to a curve at a given point.
The line is created  in plane which is orthogonal to the tangent vector.