Perspective, ContinuedGeneralprinciples ofperspectivePerspective involves four main elements; the observer’s eye, the object beingviewed, the plane of projection, and the projectors from the observer’s eye toall points on the object. Other terms you should become familiar with areplan and elevation, picture plane, vanishing point, horizon line, ground line,and visual rays.THE OBSERVER’S EYE: The observer’s eye, also known as the stationpoint (SP), represents the location of the eyes of the observer. You shoulddirect the centerline (CL) of the cone of visual rays toward the center ofinterest. For small or medium-sized objects, place the station point slightlyabove the object. For large objects, place the station point at eye level orapproximately 5 feet 6 inches above ground. The station point is the mostinfluential element of perspective drawing because it affects location,viewpoint, and perspective.Figure 5-2 shows the centerline of a cone of visual rays.Figure 5-2.—The cone of visual rays.Continued on next page5-4
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business
