sort of... A line is a circle (more precisely, a cline ("circle-or-line") with infinite radius and center on the "horizon" (In 1D, the horizon is the 2 points a

sort of... A line is a circle (more precisely, a cline ("circle-or-line") with infinite radius and center on the "horizon" (In 1D, the horizon is the 2 points at +/infinity. In 2-D, the horizon an infinite circular boundary around the plane. In 3-D, it's an infinite circular sphere). The center's position determines the slope/angle of the line. For a translational "rotation" in 3D, the axis of rotation is the line that is tangent to the infinite "celestial" sphere and perpendicular to the line of translational motion.