Jopling, Joseph, Gladwin, George, fl. 1821-1838 · London : M. Taylor · leaf 35
29 ISOMETRICAL PERSPECTIVE. lines AB and DB. Each of these lines will thus form a scale of tangents to 45°, terminating at B. Fig. 39. … Now draw the representation of a cube, fig. 40, as before directed for fig. 3. Then draw DE, fig. 39, at any angle with DB, and make DE equal to a radius or one side of the hexagon. Parallel to BE draw lines from the scale DB, and DE will be divided in the same proportion, and form a scale of…
Axonometric projection · Perspective
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.