Research of 3D modeling on smallscale geologic body——Taking 3D modeling on trace fossil Chondrites and drilling core as an example
Niu Yongbin Zhong Jianhua Hu Bin
1 College of Georesources and Information，China University of Petroleum(East China)，Dongying257061，Shandong
2 Institute of Resources & Environment，Henan Polytechnic University，Jiaozuo454000，Henan
3D modeling on smallscale geologic body is a new theme of geology. In this paper，the concepts and methods of 3D modeling on smallscale geologic body are introduced according to technical characters and practical application.The VRML(Virtual Reality Modeling Language) technique was used by combing the surface feature modeling and entity architecture modeling. The algorithm thought and realization process of dynamic concision for 3D geologic body are briefly described. Taking the 3D modeling on the trace fossil Chondrites and the drilling core as an example，combining theory and practice based on the “shape” model provided by VRML，their 3D models are established. The dynamic concision and the integration of spatial information and feature information of the smallscale geologic body were achieved by the VRML nodes “script”，“touchsensor”，“Route” and Javascript programe. Finally，the authors developed a browser platform to browser the 3D model based on Visual Basic+Cortona component，which completes the viewing and querying of the 3D model. This paper also provides a new technical method for studies of 3D modeling on the smallscale geologic body and extends the new application area for VRML technique in geology.
. Research of 3D modeling on smallscale geologic body——Taking 3D modeling on trace fossil Chondrites and drilling core as an example[J]. JOPC, 2008, 10(2): 207-214.
