Practical draughtsmen's work, with numerous engravings and diagrams (1903)
Hasluck, Paul N. (Paul Nooncree), 1854-1931, ed · Philadelphia, D. McKay · leaf 104
INS. 12 3 6 3 O NATURAL SCALEFig. 165.—Isometric Scale. true representation ; or, more accurately, the natural scale is tothe isometrical as 1 to y f or, roughly, as 11 to 9. In thismethod the object is supposed to be tilted up to show threefaces; or, taking a cube as best illustrating the… … Fig. 1G6.—Example of Isometric Projection. placed so that a direct line from the eye passes diagonalTythrough the cube as shown in shaded sketch (Fig. 162), orgeometrically by the outline (Fig. 163). Certain terms areused in describing the different parts of the figure ; they are—A A, isometric…
Mechanical drawing
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![An illustration from M. Vitrvvii viri svae professionis pertissimi De architectvra libri decem, ad Avgvstum Cæsarem accuratiss. conscripsit & nvnc primvm in Germania qva potuit diligentia excusi, atq[ue] hinc inde schematibus non iniucundis exornati (1543)](https://img.insideoutlibrary.com/img/200/ia-mvitrvviivirisva00vitr-96-25.webp)
