可视化光线投射采样法的研究

<title>Research on visualized method of ray casting sampling

对光线投射采样法的基本原理进行了分析,对其功能进行了扩充和改进。通过应用可交互修改的分段线性转换函数,实现了色彩及透明度的灵活调节,从而实现了分段逐层透明显示等特殊效果。在所有这些改进和扩充的基础上,完成了一个简单的三维数据场可视化软件,可以对医学、地球物理等领域的三维规则数据场进行高质量的显示。

<Abstrcat>This paper carried out an analysis on the basic principle of ray casting sampling method and conducted expansion and improvement upon its function.Flexible adjustment of color and transparency was realized by applying the interactive modifiable and piecewise linear transformation function,thus achieved special effect of sectionalized layer by layer transparent display.On the basis of all these improvement and expansion,a simple visualizable software for 3D data field was accomplished.This software can conduct high quality display upon 3D regular data field for domains of medical research and geophysical science.