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Is there a reflection? What is a glide-reflection? What other operations are used
in the pattern design? There are only four basic operations that bring about an
unending variety of symmetric patterns: translation, rotation, reflection, and
glide-reflection. Here's the symmetry lingo at a glance. Use the symmetry types
as indicated by SymmetryWorks icons to experiment with each symmetry operation.
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Simple shift (Translation) |
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Mirror (Reflection) |
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Glide-reflection (reflection + translation) |
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180° rotation (half-turn)
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Two-fold rotation center
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120° rotation (1/3-turn) |
Three-fold rotation center |
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90° rotation (quarter-turn) |
Four-fold
rotation center |
60° rotation (1/6-turn) |
Six-fold
rotation center |
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