Model Simplification Based on Blend Surface Reconstruction
Model simplification plays an important role in improving speed and quality of generating finite element mesh. Blend feature is one common feature of the geometry modeling. The present simplification methods are that the blend feature is removed directly from the model. However,these methods can achieve the model simplification,and destroy the original external shape. This paper proposes a novel model simplification method based on blend surface reconstruction,which blend surface is decomposed by the medial axis,after decomposition,reconstruction is made for blend and its adjacent faces for model simplification purpose. Compared with other methods,it can reduce the number of boundary surfaces on the basis of not changing external shape of the model so that it can expect model simplification. With adoption of the same mesh generation algorithm and controls parameter,the number of finite element mesh of the simplified model is far less than that of the original model.