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Picture plane : ウィキペディア英語版 | Picture plane
In painting, photography, graphical perspective and descriptive geometry, a picture plane is an imaginary plane which is located between the "eye point" or ''oculus'' and the object being viewed and is usually coextensive to the material surface of the work. It is ordinarily a vertical plane perpendicular to the sightline to the object of interest. ==Features== In the technique of graphical perspective the picture plane has several features: :Given are an eye point O (from ''oculus''), a horizontal plane of reference called the ''ground plane'' γ and a picture plane π... The line of intersection of π and γ is called the ''ground line'' and denoted ''GR''. ... the orthogonal projection of O upon π is called the ''principal vanishing point P''...The line through ''P'' parallel to the ground line is called the ''horizon'' HZ〔Kirsti Andersen (2007) ''Geometry of an Art'', p. xxix, Springer, ISBN 0-387-25961-9〕 The horizon frequently features vanishing points of lines appearing parallel in the foreground.
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「Picture plane」の詳細全文を読む
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