Viewing Point and Angle and Elevation of View : perspective term

16 January, 2009

Every object appears different when viewed from various angles. In order to create a realistic illusion of the subject, we must view it and all other relating objects from the same viewing point. The viewing point can be seen as a straight line from our eye to the horizon line. If we move to the right or left, we are changing the viewing point and there will be major changes in the drawing. The place where we stand to look at the subject is known as the viewing point and must remain constant. When you are drawing on the window plane, you probably notice that if you moved very much, the drawing became distorted and difficult to accomplish. Try changing your positions in relation to the outline of the window and notice the vast difference in the subject matter and its placement in the picture plane. When the angle of the viewing points is changed, either to the right or to the left, the entire picture is changed.

 

The same is true if the elevation from which the subject is viewed is changed. If the elevation is raised, the view of the subject is downward. If the elevation is lowered, the view is upward. The slightest degree of change in the elevation of view will create drastic differences in how we perceive all of the objects in the picture. If a cylinder is viewed from the top, the view is a foreshortened one and will result in a completely different drawing than one of the same cylinder viewed from the side. Here are two examples of the results of changing elevations of view must be kept constant. Always try to select the elevation of view that will best portray the subject.


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