Azulejo vs Islamic Geometric Pattern
アズレージョ / イスラム幾何学文様
Both sit in Ornament, so the question is not what they belong to but how they behave. One is style and the other technique. They are reached for with some of the same intent, which is where they get confused.
Azulejo
Portugal's blue-and-white tile works as the skin of architecture, opening story, map and ornament onto the street until the city itself can be read as a printed plate.
Islamic Geometric Pattern
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Divides, repeats and combines circles, squares, polygons and stars, building infinite extension and order on a finite plane.
| Azulejo | Islamic Geometric Pattern | |
|---|---|---|
| Era | 15th century– | 8th century– |
| Family | Ornament | Ornament |
| Kind | Style | Technique |
| Cues | Blue-and-white tile / Narrative panels wall-high / Repeating pattern / One body with the building | Compass construction / Star forms / Repeating units / Interlacing lines |
| Best used for | Using a building's wall as a large plate the passerby can read · Covering rooms floor to ceiling in repeats for coolness and continuity | Filling walls and ceilings so the surface reads continuous, with no visible seam. · Deriving screens and modular building parts from a single repeating unit. |
| Type | Fire the inscription in the same blue and frame it into the wall | If lettering enters, give it its own band and leave the grid intact. |
| Composition | Set the tile grid first, compose so breaks fall on the joints | Derive the unit from the construction circle and size the field in whole units. |
| Material | Cobalt blue on white glaze, judged with the gloss reflection included | Pierced stone, assembled wood, inlaid tile, crossings shown as level changes. |
| Caution | Laying a large picture out without regard for the joints misaligns grid and drawing, and the wall looks like a printed sheet pasted on. | Star shapes pasted together without the construction leave lines that miss at the crossings, and the error multiplies when repeated. The Islamic world is not one culture, so check region, dynasty, material and use. |