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Limitations of Pure Contour Drawing

Drawing forshortening is difficult with pure line
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A complex object with many edges may give the appearance of detail, but a simple object will offer no information about its three-dimensional form. For example, a circle may be a flat disk, a ball or a hole. Only the context of the drawing gives clues about the form. Because of this, it can be easy to misinterpret shapes, or for them to look odd or badly drawn. In this example, the fingers look quite mis-shapen because lack of information gives the viewer insufficient clues as to the degree of foreshortening.
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