“水道-沙洲”3D可视化模型的构建及应用--以小庙洪-三沙洪水道为例

Building and utilization of 3D visualization model of "Waterway-Sand Ridge" area——taking Xiaomiaohong and Sanshahong area as an example

利用surfer 8.0内置的克里格插值算法,将小庙洪—三沙洪海域的数字地形数据转化为等深线图(DFX格式),并根据工程设计的需要,提取部分等深线导入3ds max中.根据不同的比尺要求,设置不同等深线的相对高程,生成3种垂直比尺的3D模型.比较模型的可视化效果,并从海域管理、工程规划与设计及可视化动画3个方面总结了3种模型的不同应用.

The digital terrain data of Xiaomiaohong and Sanshahong area was imported into surfer 8.0 and converted into the isobaths map by Krig arithmetic. Then, the isobaths were selected and imported into 3ds max. During 3ds max designing, the altitudes of the isobaths were reset according to different vertical scale requirements as 1 ： 30 000, 1 ： 2 000, and 1 ： 500, and then three-scale 3D models were built. In the paper, these three models are compared, and application in marine management, engineering planning and designing, and visualization animation are evaluated.