面向自动综合的河系结构化模型研究

针对地图上河流的自动综合,建立了基于河段的河系结构化数据模型,该模型充分考虑了河段与河段、河段与面状水系要素之间的空间关系,以及河系河段的层次关系;建立了一种面向自动综合的河系结构化数据模型,模型包含了大量水系综合所需要的信息。基于上述数据模型,设计了一种方便快捷的河系结构化算法,该算法较好地克服了现有河系结构化算法只针对河流以及只适用于形态相对简单的河系的缺陷,较为全面地考虑了河系结构中出现的各种复杂问题,具有较强的实用性。

A Structural River Network Data Model for Automated River Generalization

With automated river selection,the data model is studied.A structural river network data model based on reaches is developed.The model considers the spatial relationship between reach and reach,reach and areal drainage features and reach's hierarchy relationship of river network adequately.A structural river network data model based on automated generalization oriented is developed,the model contains lots of information needed by river network generalization,developing a convenient and fast structural algorithm of river network,the algorithm overcomes present structural river network algorithms' limitation,which only aim at structural river and simple river network,refers to variety of complex problems appearing in river network's structure with a good feasibility.