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الْحَمْرَاء . The Alhambra Palace and The Geometric Ornamentation. The Court of The Lions. The tilework from Alhambra (Translational Symmetry). Mirror Reflections. Keeps pattern's appearance unchanged Half-turn rotations(center A) Quarter-turn rotation(center B). Glide reflection
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الْحَمْرَاء TheAlhambraPalaceandTheGeometricOrnamentation
Mirror Reflections Keeps pattern's appearance unchanged • Half-turn rotations(center A) • Quarter-turn rotation(center B) Glide reflection • The line of reflection (labeled g) is located half-way between the vertical mirrors(labeled m)
Third-turn (360/3=120 degrees) Rotational Symmetries Quarter-turn (360/4=90degrees) Rotational Symmetries Half-turn (360/2=180degrees) Rotational Symmetries
Sources : • www.catnaps.org/islamic/geometry.html • www.catnaps.org/islamic/geometry2.html • www.moroccanmotifs.com/yahoo_site_admin/assets/docs/ALHAMBRATILING.257182758.pdf • humis.utah.edu/humis/docs/organization_948_1160423370.pdf