GIS编程。实现了GIS简单的要素编辑功能。以前的练手程序-GIS programming. GIS simple feature editing functions. Previous training in hand program

engine9.3 vs2008 编辑功能移动位置、旋转、删除节点、增加节点-engine9.3 vs2008 editing functions move the position, rotation, delete nodes, add nodes