In order to reduce the data amount of geological block model, and improve the speed and accuracy of modeling, a block model was uses to subdivide the target area based on octree.

• 摘要为了有效地减少地质块段模型的数据量，提高建模过程中运算速度及准确性，采用八叉树结构表达块段模型，对三维目标空间进行块段细分；