PyGeo: a dynamic geometry toolkit

lines

line in space representing breathless length

f Line() ...

factory function returns instance a class representing breathless length in space

constructors:
Line (conic,point,<chord=(boolean)> )
line polar to the given point with respect to the given conic
Line (point1,point2 )
line connecting the 2 given points
Line (circle,point,<chord=(boolean)> )
line polar to the given point with the respect to the given circle.
Line (point,line )
line parallel to the given line, through the given point, on the plane of the point and the line.
Line (line1,line2,point )
line through the given point and intersecting the 2 given lines
Line (plane,point )
line perpendicular to the given plane and through the given point
Line (point1,point2,point3 )
line through 2nd given point and perpendicular to the line through 1st and 2nd given points, on the plane of 3 given points
Line (line1,line2 )
line connecting the nearest points of the 2 given lines
Line (plane1,plane2 )
line determined by the intersection of the 2 given planes

See the source for more information.