摘要
在人造骨设计中,为了能使人造骨部分与人体骨组织在一起生长、融合,就要求人造骨具有与人体骨组织一样的微孔结构。边界面与实体模型很难作到这一点。通过多面体的三向DEXEL模型与并、交、差布尔运算,生成任意复杂型体的三向DEXEL模型。将多面体的三向DEXEL模型转换为小体素模型,实现复杂属性体建模。通过设置小体素的透明度属性为全透明,实现人造微孔骨结构设计。在Java2.0与Java3D环境下编程实现并验证了所有算法。
In the design of artificial bones,in order to make the artificial bone live together with the humen bone,the artificial bone should has the same porous structure as the human bone.But the Brep or solid model can＇t achieve this.By the three direction DEXEL model of polyhedrons and its Boolean operations such as union,intersection,and subtraction,complex shape can be produced.By transforming the three direction DEXEL model of polyhedrons into its VOXEL model,the complex attributes of a volume are expressed.By setting transparaney attributes of VOXELs,the porous structure of artificial bone can be designed.Under Java2.0 and Java 3D,these algorithms are tested and some design examples are given.
出处
《计算机工程与应用》
CSCD
北大核心
2009年第18期10-12,共3页
Computer Engineering and Applications
基金
国家高技术研究发展计划(863)No.2006AA04Z111
国家自然科学基金No.50475145
No.50775185
海南省自然科学基金No.60893
国家发改委项目(No.[2005]-1898)
海南省教育厅高校科研项目(No.Hjkj2008-07)~~
关键词
多面体
三向DEXEL模型
体素模型
复杂属性体建模
体素透明度属性
人造微孔骨结构
polybedrons
three direction DEXEL model：VOXEL model
modeling of complex attributes
transparancy attribute of VOXEL
porous structure of artificial bone
