论文部分内容阅读
针对传统洞映射法存在挖洞曲面必须封闭的局限性和消耗大量内存的缺点,提出了改进型洞映射法。主要做了两点改进:1)采用“反向标记法”判别洞映射笛卡尔网格单元属性,使得挖洞曲面不再局限于封闭的情况;2)运用“矢量射线法”进一步判断洞映射笛卡尔网格边缘单元内的计算网格点属性,使得笛卡尔网格分辨率低时仍能精确挖洞。研究表明:相比于传统洞映射法,改进型洞映射法保持了很高的计算效率和精准挖洞的能力,还极大地降低了内存消耗,并且具有较强的可靠性。
In order to overcome the limitation of traditional tunneling method that the surface of a tunnel must be closed and the disadvantage of consuming a large amount of memory, an improved hole mapping method is proposed. Two main improvements have been made: 1) Cartesian grid element properties are mapped using the “inverse labeling method” discriminant hole so that the surface of the burrowing hole is no longer confined to a closed case; 2) “” vector ray method It is further determined that the mesh point attribute in the hole map Cartesian grid edge unit can make the exact hole digging even when the Cartesian grid resolution is low. The results show that, compared with the traditional method of hole mapping, the improved hole mapping method maintains a high computational efficiency and the ability to dig a hole accurately, and also greatly reduces the memory consumption, and has a strong reliability.