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# UNT - ART 1500 - Class Notes - Week 4

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UNT - ART 1500 - Class Notes - Week 4

##### Description: These notes are over sighting and organizational lines which will be on the next upcoming comprehensive quiz.
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Drawing 1 Notes wk4:  Sighting & Organizational Lines    ✓  Straight line construction is a process by which you investigate the curves and  contours of a form by translating them into a series of straight lines that describe  and emphasize those  places where contours shift, overlap or change  direction.  ✓  An accurate depiction of contour provides a solid and sensitive visual description  of form.  ✓  The structure and contours (both interior and exterior) can be investigated using  sensitive and delicate application of straight line construction.
Planar Construction-Is a natural extension of straight-line construction and begins  with the use of line.  ➢  Just as contours or edges can be analyzed though straight-line construction the surfaces of an object  or form can be analyzed using  planar construction a process that helps us to understand the dimensional character of what we  are observing and drawing.  ➢  Defined planes can be heightened with hatching and cross hatching.  ➢  Lines are used to define the intersection of planes and value is to define the  orientation of planes to the lighter light source.      ➢  Work in a flexible medium: A good directional light source can help you to  identify planes simply by noting where there is a transition from light to  shadow.    ➢  When value shifts or changes in response to dimension, it is a clue that the  planes of the surface are shifting as well.
➢
Alberto Giacometti-  was a sculptor, painter, drawer and printmaker; he is  the founder of organizational lines.

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