Implementation of geometrical boolean functions between bodies defined by NURBS

The implementation of Boolean functionalities such as the intersection, subtraction and union of complex closed or open of bodies defined by NURBS is presented. So any arbitrary structure can be processed. While the vast majority of the proposed methods provide a resulting object composed by flat facets as a result of the Boolean operation, our implementation is able to give accurate trimmed surfaces that perfectly fits the real shape of the original objects. The developed approach is explained and some examples are shown to validate the code.