【摘 要】
:
With the widespread application of GIS,an increasing number of industries involved in GIS result in the appearance of multi-source heterogeneous data source
【机 构】
:
Faculty of Information Engineering China University of Geoscience(Wuhan)Wuhan, China
【出 处】
:
挑战与机遇:2010高校GIS论坛
论文部分内容阅读
With the widespread application of GIS,an increasing number of industries involved in GIS result in the appearance of multi-source heterogeneous data source.Due to the deficiencies of common methods of multi-source heterogeneous data integration,we put forward the integration of multi-source heterogeneous data based on middleware.GIS middleware integrates multiple data source driver and provides a unified interface to client GIS software,client GIS software can seamlessly integrate multi-source heterogeneous data without care about the specific format of spatial data,so we can fast and sequentially achieve to load multi-source data.This article introduces the working principle and concrete realization of model about the middleware,the technology of middleware has been successfully applied in the MapGIS platform and achieved the integration of multi-source heterogeneous data.
其他文献
利用1986、1993及2003年3期Landsat TM遥感影像,在建立目视解译标志的基础上,借助地理信息系统技术,对陕北农牧交错带1986~2003年土地沙漠化时空动态变化特征进行分析.结
作为一名有着30多年油气田采收工作经验的技术型管理者,他充分发挥科学管理的优越性,结合沈西气田的现状,研究运用了现代油气开采理论和先进工艺,确保老井获得最大采收率,创
1疏删春梢疏去树冠顶部的直立旺长春梢和细弱梢,以及病虫严重危害梢。直立旺长梢可疏去总量的1/2~2/3。2及时疏花疏剪露柱花、畸形花,摘除细弱花(花量少的树摘过大或过小花蕾,留较健壮的2~3蕾
测绘行业在对野外数据的采集时,针对各部门对数据信息的需要程度不同以不同的比例尺度获取数据,因此我国建立的不同比例尺数据库存储的数据集的详尽程度也各不相同。当对数
关于用溴氰菊酯浸泡蚊帐防治媒介蚊虫,国内外已有多篇报告。而用拟除虫菊酯浸泡大孔网布防治疟疾媒介、日本、英国、中国先后也有报告,但溴氰菊酯浸泡大孔网布对不同日龄淡
用了15年,阿里巴巴网络有限公司CEO卫哲让中国人认识了他。这位中国年轻的高级执行官,如同坐火箭一般完成了“从士兵到将军”的升迁,其职场生涯如同一部将白领染成金领的“卫
Junction is a necessary operation when vector-data entering into database to be stored.The current widespread use of junction is based on map.But the algori
Libo county,the Southern China Karst World Nature Heritage,covers the areas of Maolan National Nature Reserve and Zhangjiang National Key Scenery Park.By th
我国著名生物化学家、营养学家、中国医学科学院血液学研究所邵继智教授,长期从事蛋白质水解、肠外及肠内营养研究,取得卓越成就。为了鼓励我国肠外及肠内营养研究的发展,他
线状目标简化一直是地图综合的一项重要内容,可以看作是一个部分选取的优化问题。近10年来,将智能优化算法用于解地图综合问题,得到了许多来自数字制图和计算机科学领域的专