Before revision: The invariant edge properties are as follows:- Curvature (various points of a curve) Parallel lines (two or more points which follow the same direction) Co-termination (the point at which two points meet and therefore cease to continue) Symmetry and asymmetry Co-linearity (points branching from a common line) Our knowledge of these properties mean that when viewing an object or geon, we can perceive it from almost any angle.
After revision: The invariant edge properties are as follows:- Curvature (various points of a curve) Parallel lines (two or more points which follow the same direction) Co-termination (the point at which two points meet and therefore cease to continue) Symmetry and asymmetry Co-linearity (points branching from a common line) Our knowledge of these properties means that when viewing an object or geon, we can perceive it from almost any angle.