Axis of rotation - construction of a solid, Computer Graphics

Axis of Rotation - Construction of a solid with a translational sweep

1759_Axis of Rotation - Construction of a solid with a translational sweep.png

Figure:  (a)                                                                          Figure  (b)

In the illustration of object demonstrated in Figure 25, the designing is done by utilizing a rotational sweep. Now there, the periodic spline cross-section is rotated regarding to an axis of rotation identified in the plane of the cross-section to make the wireframe.  Any axis can be selected for a rotational sweep. Whether we utilize a rotation axis perpendicular to the plane of the spline cross-section, in the figure (b) where we produce a two-dimensional shape. Nevertheless if the cross section demonstrated in this figure has depth, then we are utilizing one three-dimensional object to generate the other.

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