With view frustum culling based on nodes of block, triangle strip optimizing, cracks elimination and geomorphing, the efficiency and effect of the method are greatly increased.

• 基于块节点的视景体裁剪、三角形条组织以及边界裂缝消除、视觉光滑处理等手段的运用，提高了地形漫游的效率与可视化效果。