Este trabalho descreve a implantação de um software interativo que implementa um modelador geométrico com características hierárquicas para a construção de sólidos, em um sistema CAD. Os sólidos gerados por varreduras são então compostos entre sí, usando operações booleanas, para a obtenção da forma final desejada. Inicialmente justifica-se a escolha utilizando seu funcionamento, com o objetivo de viabilizar a transportabilidade do modelador geométrico a outros sistemas, usando pacotes gráficos padronizados, faz-se uma comparação com outros padrões.
This work presents the development of an Interactive software that implements a geometrical modeller with hierarchical features for the construction of solids in a CAD system. In this work the solids are built following a hierarchical binary tree structure whose lowest level elements are used for generating solids through the technique known as rotational or translational sweeping, either around a revolution axis or along a straight line, respective The swept generated so are then composed with each other, using boolean operations, in order to obtain the final desired form. First, the kind of data base structure used is justified and its operation described; then a geometric modeling theoretical basis is presented as well as the main solid representation schemes. Finally, with the purpouse of increasing the feasibility of the transportability of the geometric modeller to other Systems, using standard graphic packages, a comparison with the most used graphic standards is made.
