翻訳と辞書 Words near each other ・ Centrolene sanchezi ・ Centrolene savagei ・ Centrolene solitaria ・ Centrolene tayrona ・ Centrolene venezuelense ・ Centroleninae ・ Centrolepidaceae ・ Centrolepis ・ Centrolepis ciliata ・ Centrolepis fascicularis ・ Centrolepis glabra ・ Centrolepis minima ・ Centrolepis pallida ・ Centrolepis strigosa ・ Centrolew ・ Centrolinead ・ Centrolobium ・ Centrolobium yavizanum ・ Centromadia ・ Centromadia fitchii ・ Centromadia parryi ・ Centromadia perennis ・ Centromadia pungens ・ Centromedian nucleus ・ Centromere ・ Centromere protein B ・ Centromere protein E ・ Centrometopia ・ Centrometopia atrisparsella ・ Centrometopia interruptella Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Centrolinead ： ウィキペディア英語版 Centrolinead The centrolinead was invented by Peter Nicholson, a British mathematician and architect, in 1814.〔(Yahoo! Groups )〕 It was used to construct 2-point perspective drawings where one or both vanishing points existed outside the drawing board. Draftsmen could use the instrument in pairs; one for each vanishing point on each side of the station point. Centrolineads were produced in various sizes. Typically a brass fitting clamped the wooden arms together. Fittings were produced in both right and left-handed configuration, and certain adjustable designs could be used on either side. == Usage == Two short arms are set to form 90 degree angles against a third, longer drawing edge. Pins are placed near the edges of the drawing surface and serve as pivots for the arms. Pin placement is equidistant and symmetric across the horizontal line. A third centrolinead could be used to construct 3-point perspective. The diagram shown above does not represent the centrolinead designed by Nicholson. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Centrolinead」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.