Perspective lines are the straight lines, formed at an angle from the edges of objects, back into perceived distant place, until they subsequently converge at a point on the horizon line. These lines organised guidelines for drawing objects in proper perspective.
A vanishing point is a position on the picture plane of a perspective drawing where the two-dimensional perspective projections (or drawings) of mutually identical lines in three-dimensional space seem to converge. When the set of parallel lines is vertical to a picture plane, the construction is known as one-point perspective, and their vanishing point communicates to the "eye point", from which the image should be seen for correct perspective geometry.
