In order to improve the 3D visualization level of the Datengxia Gorge Water Conservancy Project. solve the problems in management and retrieval of UAV aerial photography results. and meet the needs of high fidelity display of submerging area changes in the process of water level elevation in the reservoir area. this paper firstly sorts out and summarizes the background. https://hollandscountryclothinges.shop/product-category/ponchos/