对宗地图绘制程序的开发过程进行了阐述，并介绍了其应用实例。
The paper discusses the developing procedure of cadastral block map program and provides some examples.
该系统实现了图形编辑，宗地查询、宗地变更、宗地历史回溯、宗地图输出等功能。
Functions are as follows: graphics editor, query parcel of land, changes of parcel of land, looking back in history of parcel of land, output of parcel of land map and so on.
地籍信息系统的宗地合并操作时常会失效，其原因是实际测量的宗地图形与系统要求的理想化宗地图形有一定的差异。
Sometimes the operation of merging parcel in cadastral information systems may become invalidation, since there are some gaps between surveyed parcel graph and idealization graph.
地籍信息系统的宗地合并操作时常会失效，其原因是实际测量的宗地图形与系统要求的理想化宗地图形有一定的差异。
Sometimes the operation of merging parcel in cadastral information systems may become invalidation, since there are some gaps between surveyed parcel graph and idealization graph.
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