GIS中用mapx侧距离，比较稳定的例子，支持直线与折线测距-using GIS mapx lateral distance, relatively stable examples in support of straight lines and broken Ranging

几个在vb环境下通过mapx就行的二次开发，如 读属性表、测距工具、查找对象等-Several vb environment by mapx line secondary development, such as reading the attribute table, ranging tools, find the object

VB+MapX 用户自定义工具使用流程--以测距为例-VB+MapX user-defined tools process- for example--ranging