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Published byDwain Howard Modified over 9 years ago
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Symmetry is the exact correspondence in size, shape and position of the parts of a whole.
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AXIAL SYMMETRY: when equal elements of a figure are equidistant from a line called "axis of symmetry“.
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Whenever a figure can be divided, forming with it two equal parts, we say that it is a symmetrical figure.
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RADIAL SYMMETRY: when each point of a figure corresponds to another of the same figure, being in the same straight line, opposite and equal distance from another point called the "center of symmetry".
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GEOMETRIC SYMMETRY: It is characterized by the accuracy of the path. To draw shapes with geometric symmetry, we will use the square, triangle, ruler and compass. Simetría axial Simetría radial o central
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Axial symmetry examples:
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Radial or central symmetry examples:
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AXIAL LAYOUT FIGURES
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Draw the axis of symmetry and the perpendicular lines to the axis.
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Symmetrical dots are marked on the perpendicular; what you mark on one side of the axis, you also have to mark on the other (using your compass). AXIAL LAYOUT FIGURES
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Now we just need to connect the dots. AXIAL LAYOUT FIGURES
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Palma Cathedral Rose Window RADIAL LAYOUT FIGURES
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Draw a circle and its diameter
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Divide the circumference into six equal parts
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Connect the points A, E, F. drawing an equilateral triangle
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Connect the BCD points drawing another equilateral triangle. You already have a figure of radial symmetry, now you need to create more shapes to have a more attractive result.
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Connect the points A B C D E F drawing a hexagon.
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Join ALTERNATELY the points of the small hexagon drawing another STAR polygon.
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Prick on the small STAR polygon edges and draw arcs at the sides of the big hexagon.
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You can keep pricking on the small hex points or joining other points, but always respecting the radial symmetry
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APPARENT SYMMETRY: Which fulfill the general rules of symmetry, varies slightly the disposition of their points from the axis or center of symmetry. Simetría axial: ejemplos
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EXPRESSIVE CAPACITY OF SYMMETRY A composition is symmetrical when the visual weight of the elements is distributed equivalently in respect to one of the principal axes vertical or horizontal. Also there is a symmetry regarding a diagonal axis. Usually the symmetry implies statist.
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Artistic expression employs both: the apparent and the geometric symmetry.... RUBEM VALENTIM. S/T 1956 EMBLEMA 86 - 1986
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When symmetry is chosen as a way of expression, it is for the purpose of producing an effect of visual order and stability. M.C. ESCHER - 1948
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VISUAL MASS BALANCE Symmetry is simply a case of equilibrium. We can balance a composition using the symmetry apparent compensating of the "visual mass." Annunciation. Fra Angelico 1430 -32 The characters do not fulfill the axial symmetry, but the space is divided into two equal parts, taking up similar space, without encroaching on each other.
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Symmetry allows ordering and decorating a space whose point of interest is in the center. Heart Kids - Romero Brito VISUAL MASS BALANCE
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POSITIVE / NEGATIVE
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