Chap05shape and form

# Coverings fabrics and wallpapers floors and walls are

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Unformatted text preview: s, and wallpapers. Floors and walls are two-dimensional shapes; so are tabletops, book pages, posters, and billboards. The images you create with your computer and the images in the handheld and computer games you play may have the illusion of depth, but they are also two-dimensional shapes. Geometric Shapes All shapes can be classified as either geometric or free-form. Geometric shapes are precise shapes that can be described using mathematical formulas (Figure 5.2). The basic geometric shapes are the circle, the square, and the triangle. All other geometric shapes are either variations or combinations of these basic shapes. Some of the variations include the oval, rectangle, parallelogram, trapezoid, pentagon, pentagram, hexagon, and octagon. Circle Octagon Square Parallelogram FIGURE 5.2 Geometric shapes. 98 CHAPTER 5 Shape, Form, and Space Triangle Trapezoid Oval Rectangle Pentagon Hexagon Geometric shapes are used for decoration, uniformity, and organization. Notice the decorative quality of the geometric shapes in the artwork shown in Figure 5.3. How many different simple and complex geometric shapes can you find in Biggers’ painting? Road signs are examples of uniformity. The same kind of sign must always have the same shape. Do you know the shape of a stop sign? Which shape is used for “Yield”? Which shape is used for TV screens? Why do you think ceiling tiles and window panes have geometric shapes? Free-Form Shapes Free-form shapes are irregular and uneven shapes. Their outlines may be curved, angular, or a combination of both. They often occur in nature. Another word that may be used to describe free-form shapes is organic. Organic is used when we talk about the shapes that are silhouettes of living things such as animals, people, or trees. Look at the difference between the decorative patterns of geometric shapes in Figure 5.3 and the free-form, organic shapes painted on the vases in Figure 5.4. Which looks more organized? FIGURE 5.3 Biggers uses the women in this work to represent the African civilizations of Egypt, Benin, and Dogon. The crowns are symbols of these civilizations. The cloth on their laps represents the geometry that has brought order to each culture. John Biggers. Starry Crown. 1987. Acrylic, mixed media on Masonite. 155 124.5 cm (61 49 ). Dallas Museum of Art, Dallas, Texas. Museum League Purchase Fund. FIGURE 5.4 Notice the free-form, organic qualities of the dragons and clouds that were painted on this matching pair of vases. Although the forms of the vases are perfectly matched, the paintings are not exactly alike. Look closely to find the differences between the two dragons. Chinese, Pair of Vases. 1426–1435. Ming Dynasty (1368–1644). Porcelain with underglaze blue decoration. 55.2 29.2 cm 111 2 ). The Nelson-Atkins Museum of Art, Kansas City, (213⁄4 Missouri. Purchase: Nelson Trust, 40-45/1,2. LESSON 1 Shapes and Forms 99 FIGURE 5.5 What kind of relationship do you see between the two-dimensional shap...
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## This document was uploaded on 09/23/2013.

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