File:Construction scheme of the mosque of Ibn Tulun.svg

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English: This scheme explains the construction of the floor plan of the mosque of Ibn Tulun in Cairo, Egypt. It is not an exact floor plan: details have been removed intentionally, angles have been unified to right angles, and all measurements have been rounded and simplified.

What this drawing tries to show is that the floor plan has been composed from concentric squares: the central court (sahn) is a square of 92 × 92 m ca., the outer wall with the courts (ziyada) is a square of 162 × 162 m ca., and even the main building, which is a rectangle of 122 × 140 m ca., it aligned within the outer wall in such a way that it is composed from a square of 122 × 122 m ca. which has been prolonged in the direction of the qibla (the direction towards Mekka, the upper margin of the drawing) to form the main sancturay, the qibla riwāq. The grey circles just show that the rectangles are squares, and the red lines show that these squares are concentric. The ablution fountain is located exactly at the center of the building.
The minaret is not shown in this drawing because many authors — e.g., John D. Hoag (see below) — consider the currend form and placement (a bit out of the main axis) of the minaret to be not original. It may be noted that other authors consider at least the placement and main structure of the minaret as original (e. g. Doris Behrens-Abouseif, Islamic Architecture in Cairo. An introduction, Leiden 1992, p. 55).

The measurement and the description are based on D. Brandenburg, Islamische Baukunst in Ägypten, Berlin 1966, and John D. Hoag, Islam (a volume of Weltgeschichte der Architektur, ed. by Pier Luigi Nervi), German ed. Stuttgart 1986, p. 29.
Deutsch: Dieses Schema erklärt die Konstruktion des Grundrisses der Ibn-Tulun-Moschee in Kairo. Es handelt sich also nicht um einen genauen Grundriss: Details wurden absichtlich ausgelassen, die Winkel wurden zu rechten Winkeln vereinheitlicht und alle Maße wurden gerundet und vereinfacht.

Was diese Zeichnung zeigen soll, ist vielmehr, dass sich der Grundriss aus konzentrischen Quadraten zusammensetzt: der Zentralhof (sahn) bildet ein Quadrat von ca. 92 × 92 m, die äußere Mauer mit den Vorhöfen (ziyada) umfasst ein Quadrat von ca. 162 × 162 m, und sogar der Hauptbau, der ein Rechteck von ca. 122 × 140 m bildet, ist innerhalb der Außenmauer so ausgerichtet, dass er sich aus einem Quadrat von ca. 122 × 122 m zusammensetzt, das in Richtung der qibla (der Richtung nach Mekka, der obere Rand der Zeichnung) verlängert wurde, um den Hauptgebetssaal, die qibla riwāq, zu bilden. Die grauen Kreise deuten einfach an, dass die Rechtecke Quadrate sind, und die roten Linien zeigen, dass diese Quadrate konzentrisch sind. Der Pavillon des Reinigungsbrunnes befindet sich genau im Zentrum der Anlage.
Das Minarett ist auf dieser Zeichnung nicht dargestellt, da viele Autoren — z.B. John D. Hoag (s.u.) — die heutige Form und Platzierung (etwas seitlich von der Hauptachse) des Minarettes für nicht ursprünglich halten. Es sei angemerkt, dass andere Autoren (z.B. Doris Behrens-Abouseif, Islamic Architecture in Cairo. An introduction, Leiden 1992, S. 55) die Pla(t)zierung und den Grobaufbau des Minarettes doch für original halten.

Maße und Beschreibung basieren auf D. Brandenburg, Islamische Baukunst in Ägypten, Berlin 1966, sowie John D. Hoag, Islam (ein Band der Weltgeschichte der Architektur, hg. von Pier Luigi Nervi), deutsche Ausgabe Stuttgart 1986, S. 29.
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Date/TimeThumbnailDimensionsUserComment
current21:26, 16 February 2011Thumbnail for version as of 21:26, 16 February 2011645 × 645 (3 KB)Aristeas (talk | contribs)Fixed arc of mihrab (error was not visible in preview of FireFox 4 or MacOS 10.6; here LibRSVG is more exact than the other engines)
20:51, 16 February 2011Thumbnail for version as of 20:51, 16 February 2011645 × 645 (3 KB)Aristeas (talk | contribs)Another attempt to fix the bug. It may be related to the font used (Times), so tried just 'serif'
17:19, 16 February 2011Thumbnail for version as of 17:19, 16 February 2011546 × 546 (3 KB)Aristeas (talk | contribs)Does *this* fix the font size? There seems to be a bug in the SVG library used by Wikimedia, as the previous version was displayed properly both by Firefox 4 and by Apple’s MacOS 10.6 SVG rendering service …
17:06, 16 February 2011Thumbnail for version as of 17:06, 16 February 2011645 × 645 (3 KB)Aristeas (talk | contribs)fixed font size, sorry
17:02, 16 February 2011Thumbnail for version as of 17:02, 16 February 2011645 × 645 (3 KB)Aristeas (talk | contribs)Changed font to Times, as the default sans-serif font doesn’t scale well; added names of zadiya and sahn; qibal (for the direction) instead of mihrab; increased stroke-width, looking IMHO worse, but scaling better to small thumbnail sizes
15:51, 16 February 2011Thumbnail for version as of 15:51, 16 February 2011645 × 645 (2 KB)Aristeas (talk | contribs){{Information |Description ={{en|1=This scheme explains the construction of the mosque of Ibn Tulun in Cairo, Egypt. It is ''not'' an exact floor plan: details have been removed, angles have been unified to right a

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