代数法和偏微分法在给定区域生成适体坐标网格，可调整正交性和网格疏密等。-Algebra and the partial method to generate a given area fitted coordinate grid, the grid spacing adjustable orthogonality and so on.

随机生成裂缝网格，由于地下水文学模拟，及裂缝网格连通性计算。-Randomly generated grid of cracks, due to subsurface hydrology simulation and calculation of cracks grid connectivity.