원문정보
초록
영어
It’s very important for environment simulation in the three-dimensional railway line selection and design, and the establishment of three-dimensional landscape model impacts the fidelity of simulation environment directly. The paper studied. Of the 3D landscape modeling methods and key technologies. The paper achieved three-dimensional modeling of railway line used bi-cubic coons model, realized line structures three-dimensional modeling by object-oriented modeling approach. Based on Visual C + + and Oracle databases, The paper established the structure model library and realized the effective management of the model, Solved the exact match and control problem between structure mode and the three-dimensional scene, Achieved the application of structure mode in three-dimensional line landscape simulation and established a three-dimensional line landscape with higher fidelity. Developed a three-dimensional landscape line dynamic environment simulation system based on the methods and theories of paper studied. Using this system, Yunnan - Tibet railway line has been designed 3D landscape modeling, Verified the correctness of the theory and algorithms of paper studied.
목차
1. Introduction
2. Three-dimensional modeling of design line
3. Three-dimensional modeling of the line structures
3.1. Object-oriented graphics assisted simulation modeling
3.2. Three-dimensional model library of Structures
3.3. Three-dimensional modeling of line ancillary facilities
3.4. Three-dimensional model application in 3D environment
4. Trees modeling in line 3D landscape
4.1. Three-dimensional modeling of trees based on graphics technology
4.2. Acquisition and processing of data resources
4.3. Realization of trees three-dimensional modeling
5. Conclusions
Acknowledgements
References