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 84
o, and proceed to carry it over to its positionin plan. Having completed the base in plan, find its centre C, and from thatcentre draw a line in the direction of the 40° axis. Find, by the proper method,the projection length of the axis at coa^ or c-zb-y, according to its length, and thenmark this… … Fig. 76. If a circular hole has to be represented, in a block, for instance, in axomctricprojection, points should be obtained in the circumference by using diagonals andparallels to the sides of a square made to contain the circle, the sides of the squarebeing made to follow axis directions in the…
Geometry, Descriptive
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