Descriptive geometry for students in engineering science and architecture; a carefully graded course of instruction (1915)
Armstrong, Henry F. (Henry Fry), 1868- · New York, J. Wiley & sons, inc.; [etc., etc.] · leaf 126
Fig. 112. left of the spectator, measured to the left of the line of sight, and is at a distance,measured along the line of sight, from the spectator whose position is marked 5.The picture plane, that is, the projection plane, is placed vertically at AT, whichis its plan, and is then represented…
Geometry, Descriptive
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