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  • 桑普多利亚vs热那亚:Arcgis:Coordinate ranks

    都灵桑普多利亚关系 www.dqyww.com 2/13/2017来源:经验技巧人气:7416

    The coordinate accuracy ranks you specify forfeature classes in a geodatabase topology control the movement of featurevertices during validation. The rank helps control how vertices are moved whenthey fall within the cluster tolerance of one another. Vertices within thecluster tolerance of one another are assumed to have the same location and arecolocated (the same coordinate values are assigned for the coordinates thatfall within the cluster tolerance).

     

    When different feature classes have a differentcoordinate accuracy, such as when one was collected by survey or differentialGlobal Positioning System (GPS) and another was digitized from a less accuratesource, coordinate ranks can allow you to ensure that reliably placed verticesare the anchor locations toward which less reliable vertices are moved.

     

    Typically, the less accurate coordinate is moved tothe location of the more accurate coordinate, or a new location is computed asa weighted average distance between the coordinates in the cluster. In thesecases, the weighted average distance is based on the accuracy ranks of theclustered coordinates.

    The location of equally ranked vertices aregeometrically averaged when they are within the cluster tolerance of eachother.

    Be sure to assign ranks in the PRoper order. Thefeatures with the highest accuracy get a rank of 1, less accurate features geta rank of 2, and so on.



  • 聚焦中央经济工作会议 2019-08-13
  • 先生的这个跟帖,很有“核心意识和看齐意识”。 2019-08-13
  • 城区加大扬尘污染治理力度 所有施工现场必须安装视频监控 2019-08-10
  • 四十多个赞,莫非真的有他们说的什么点钻机! 2019-07-30
  • “互联网+农村”亟待提速 网络入户遇两大难题 2019-07-28
  • 青海“天然林管护+生态扶贫” 5517万亩天然林得到保护 2019-07-28
  • 从一起偷倒渣土案看作风 2019-07-15
  • China Focus Dragon Boat Festival celebrated across China - Culture News - CQNEWS 2019-07-15
  • 可再生能源电价附加资金补助目录公布 2019-07-06
  • 驻村书记张春雪扶贫记:我为黄花代言 2019-07-06
  • 岭南佳果飘香 周边摘果正当时 2019-07-01
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