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[原创]请教关于arcinfo的generalize命令
<P>请教关于arcinfo的generalize命令的问题:在数据量一样大的情况下,是分级generalize(比如先设定generalize参数为20,执行后再在上次概化后的结果上再概化一次比如参数为60)效果好,还是一次到位(比如直接概化参数设成80)效果好??</P>
<P> 哪位高人知道阿????</P> |
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发布于:2005-09-21 13:45
<P>看看这个白皮书了</P>
<P>http://downloads.esri.com/support/whitepapers/ao_/Map_Generalization.pdf</P>Summary: <P>Map generalization has become an indispensable component of today’s GIS systems. Whatever the task, from compiling data in different sources into a master database to composing an output from it for data compression, analysis, or representation, generalization is most likely involved. The basic concepts and the state of the art of computer-assisted generalization were reviewed in a previous paper (ESRI). The present paper further explains the nature of map generalization in GIS and presents our </P>Description: <P>Map generalization has become an indispensable component of today’s GIS systems. Whatever the task, from compiling data in different sources into a master database to composing an output from it for data compression, analysis, or representation, generalization is most likely involved. The basic concepts and the state of the art of computer-assisted generalization were reviewed in a previous paper (ESRI). The present paper further explains the nature of map generalization in GIS and presents our newly developed generalization functions and sample procedures derived for specific generalization tasks in Workstation ArcInfo software.</P> |
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