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3201 study guide

# 3201 study guide - Six major types of field forces Main...

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Six major types of field forces: Main directions, magnetism of frame, asymmetry of the frame, figure and ground, psychological closure, and vectors. Horizontal lines suggest calm and normalcy. Vertical lines suggest power, formality and strength. A combination of vertical and horizontal reflects our normal world; it follows the pull of gravity and suggests that we are standing upright on level ground. A titled horizontal plane implies instability or powerful dynamism in an otherwise stable, or even static, shot. Magnetism of fram refers to how the borders of the screen- especially the corners- exert a strong pull on objects within the frame. Moreover, graphic mass (an object occupying a large screen area) is usually more stable than a smaller one (occupying a relatively small screen area). The smaller graphic mass is dependent and the larger is more independent. A diagonal going from bottom of screen left to the top of screen right is perceived as an uphill slant; a diagonal from top left to bottom right implies a downhill slant. This suggests that we tend to start at the left and finish at the right when looking at a picture field. As the destination area, the right side of the screen seems more prominent: we generally pay more attention to an object when it is placed on screen right than on screen left. We always try to organize a picture field into stable ground against which less stable figures operate. The figure exhibits certain spatial and graphic characteristics, the most important of which is that the figure seems to lie in front of the ground. Certain figure/ground reversals can be distracting but can also contribute to startling and expressive effects. We tend to organize pictoral elements into a pattern of simple geometrical figures, such as triangles, squares and the like. We can perceive such patterns, even if we have only minimal information, by mentally filling in the missing information- a process known as psychological closure, or closure for short. The pattern we arrive at through psychological closure is called a gestalt. In a gestalt the parts have assumed a different structural role than when they were independent. A vector is a force with a direction and a magnitude. All screen events exhibit one or a combination of the three principal vectors: graphic, index and motion.

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A graphic vector is created by simple lines or stationary elements that are arranged so that the viewer sees them as lines. Although graphic vectors suggest a general direction, their actual direction is ambiguous. An index vector is created by an object that unquestionably points in a specific direction. A motion vector is created by an object that actually moves or is perceived as moving on screen. Structuring the two dimenstional field means meaking the interplay of screen forces work for rather than against you. The relevant processes and topics include stabilizing the field through distribution of graphic mass and magnetic force, stabilizing the field through
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