The key problem for geographicelement selection is synthetic consideration of multi attributes indexes.
要素选取的关键在于多属性指标的综合考虑。
2
The calculation method of the geographicelement density is researched based on analysis ofthe land series maps published of county and prefecture.
在分析已出版的县、地土地系列图的基础上，探讨地理要素密度计算方法；
3
The functionality of the application is simply to check whether the geographic features encoded in a GML instance document contains at least one geometry element.