## Trimetric Projection

Trimetric projection is an axonometric projection of an object so placed that no two axes make equal angles with the plane of projection and each of the three principal axes and the lines parallel to them, re- Figure 5.20 Steps to draw a circle in isometric projection.

Figure 5.20 Steps to draw a circle in isometric projection. Figure 5.21 Steps to draw a circle in isometric projection. Figure 5.22 A comparison of isometric, dimetric and trimetric drawings (source: Wikipedia).

spectively, have different ratios of foreshortening (and are therefore drawn at different scales) when projected to the plane of projection. The wide angle choice gives the designer considerable flexibility and control of the pictorial view.

In trimetric projections, the direction of viewing is such that all of the three axes of space appear unequally foreshortened. The scale along each of the three axes and the angles among them are determined separately as dictated by the angle of viewing. Approximations in trimetric drawings are common. 