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3.5.2 Isometric Circles
The term isometric circle refers to the shape of a circle in an isometric view. An
isometric circle will be elliptical in shape.
Figure 3.20 : Isometric circles
3.5.2.1 Plotting an isometric circle
The orientation of the isometric circle will depend upon the plane on which
the circular feature exists. The procedure of plotting an isometric circle is
as follow :
➢ Draw a square of side equal to the diameter of circle and inscribe the
circle.
➢ Divide the circle into any number of equal parts and mark points such
as 1,2,3,4,5,6,7,8 on the circle.
➢ Through the points 1,2,3 etc draw lines parallel to the both the axis of
the cylinder.
➢ Draw an isometric view of the square.
➢ Mark points corresponding to 1,2,3....8 with the isometric view of the
square as points 1',2',3'....8'.
➢ Join these points with a smooth curve to for an ellipse.
