非均质NURBS体参数化模型的AMF通用文件生成方法

doi:10.16182/j.issn1004731x.joss.17-0401

系统仿真学报 ›› 2019, Vol. 31 ›› Issue (10): 2010-2018.doi: 10.16182/j.issn1004731x.joss.17-0401

非均质NURBS体参数化模型的AMF通用文件生成方法

陈龙¹, 韩文瑜¹, 徐岗²

1. 上海理工大学机械工程学院,上海 200093;
2. 杭州电子科技大学计算机学院,浙江杭州 310018

收稿日期:2017-08-17 修回日期:2017-10-23 出版日期:2019-10-10 发布日期:2019-12-12
作者简介:陈龙(1978-),男,湖北十堰,博士,副教授,研究方向为产品计算设计,机器视觉;韩文瑜(1994-),男,陕西渭南,硕士,研究方向为CAGD。
基金资助:
国家自然科学基金(51475309,61472111),浙江省杰出青年自然科学基金(LR16F020003)

A Generation Method of AMF General Files for Heterogeneous NURBS Volume Parametric Model

Chen Long¹, Han Wenyu¹, Xu Gang²

1. College of Mechanical Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China;
2. Department of Computer Science, Hangzhou Dianzi University, Hangzhou 310018, China

Received:2017-08-17 Revised:2017-10-23 Online:2019-10-10 Published:2019-12-12

摘要/Abstract

摘要： 针对非均质NURBS (Heterogeneous Non-Uniform Rational B-spline,简称HNURBS)体参数化模型的三维打印技术,给出了三维打印通用AMF (Additive Manufacturing File Format)文件生成方法。用灰度值代表材料信息,通过含有灰度信息的控制点构建HNURBS体参数化模型,实现材料信息连续可视化表达;根据NURBS体参数模型细分方法得到等参线网格单元,对等参线网格单元进行三角网格划分和材料插值计算,得到用于AMF文件生成所需的三角形网格单元。结果表明,输出的AMF格式文件可供三维打印软件AMFtools读取和显示。

关键词: 非均质产品, 三维打印, HNURBS体参数化, AMF文件

Abstract: Aiming at the three-dimensional printing technology of heterogeneous NURBS (Heterogeneous Non-Uniform Rational B-spline, HNURBS) volume parametrization model, a method of generatingthe AMF (Additive Manufacturing File Format) of the three dimensional printing general file is proposed. For the continuous visual expression of material information, theHNURBS volume parametric model is constructed with the control points containing material information which is represented with gray value.According to the subdivision of the NURBS volume parametric model, the HNURBS volume parametric model is subdivided into Isoparametric mesh element. In order to get the triangular mesh for the generation of the AMF files, each plane of the element is divided into the triangular meshand the material information is calculated with interpolation method.The results show that the output of AMF format is available for thethree dimensional printing software AMFtools.

Key words: heterogeneous products, three dimensional printing, HNURBS volume parameterization, AMF file

中图分类号:

陈龙, 韩文瑜, 徐岗. 非均质NURBS体参数化模型的AMF通用文件生成方法[J]. 系统仿真学报, 2019, 31(10): 2010-2018.

Chen Long, Han Wenyu, Xu Gang. A Generation Method of AMF General Files for Heterogeneous NURBS Volume Parametric Model[J]. Journal of System Simulation, 2019, 31(10): 2010-2018.

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非均质NURBS体参数化模型的AMF通用文件生成方法

A Generation Method of AMF General Files for Heterogeneous NURBS Volume Parametric Model

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