Edge: ID:<ID>, <3D>, angle: <angle> on photos <p1> unused <p2>.
• <ID> is the ID number of the Edge object
• <3D> is the string "3D" (which means the Edge has a correct 3D position) or "not 3D" (which means the Edge cannot be computed in 3D - either not on enough oriented photos or the angle is too low).
• <angle> the maximum angle between the Edge Mark projection planes that define the Edge. The closer to 90 degrees, the better. When angle is too small the Edge cannot be computed or if it is computed it will be inaccurate.
• <p1> is the list of photographs the Edge’s mark appears on.
• <p2> is the list of unused photographs the Edge’s mark appears on.