Fig. 8
From: Review of heterogeneous material objects modeling in additive manufacturing
a Heterogeneous object made of simple material distribution sampled with the composition changing linearly from one material region to another [73]. b Comparison of conventional (left) and reasoning (right) boolean operations for heterogeneous objects modeling [74]. c When hybrid homogeneous, unidirectional or trivariate FGM distributions might occur in the same part, composite models are ideal to represent such objects. With the cellular model in (d), the delimiting face is no longer separately represented as shown in (c) [1]