Free-hand drawing : a manual for teachers and students (1904)
Cross, Anson Kent, 1862- · Boston : Ginn · leaf 107
fore-shortened, causes in the eye an image practically like that which theobject itself would produce. Fig. 2 1 shows that the picture plane which gives a picture whichis similar to the image in the eye must be at right angles to thedirection in which the object is seen. In the case of the… … Fig. 26, A Side View. a true picture on a plane at right angles to the direction in which anobject is seen which will not when viewed naturally, produce asatisfactory impression of the object. Fig. 25 is from a photograph of a vertical square prism below theeye. the picture plane (the negative)…
Drawing
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