Research on Three-Dimensional Electronic Navigation Chart Hybrid Spatial Index Structure Based on Quadtree and R-Tree

Yunong ZhangAnmin ZhangMiao GaoYi Liang2025-05-142025-05-142022jz000147-0314https://tustorage.ulb.tu-darmstadt.de/handle/tustorage/24444550Research on Three-Dimensional Electronic Navigation Chart Hybrid Spatial Index Structure Based on Quadtree and R-TreeArticlehttps://doi.org/10.3390/ijgi11050319