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Figure 3.16 : Orthographic projection of Figure 3.15
3.5 Isometric Drawing
In an isometric drawing the three mutually perpendicular edges of a cube are at an angle
of 120° with each other. Instead of drawing the edges as mentioned above, first we can
also start from point `a'. At this point also three mutually perpendicular edges met while
two of these edges make 30° to horizontal, the other edge is vertical. After drawing two
30° lines and one vertical line, parallel lines are drawn to complete cube.
Figure 3.17 : Isometric axis
