CAJ | 학술논문

针对线/面细分拓扑关系研究存在的不足，提出了一种基于结点度的线/面细分拓扑关系描述与计算方法。该方法在定义线/面单元交线并分析其特点的基础上，引入结点度来区分线/面单元交线细分类型。根据单元交线端点在线/面目标组成图形结构中结点度的不同，及线目标在度为3和4的交线端点处是否有相连线段、相连线段位于多边形的边界上、内部或外部4个谓词推导出了21种有意义的线/面交线细分拓扑关系类型。在此基础上分析比较了本文方法与现有方法的异同与优势，举例说明本文方法在复杂线/面细分拓扑关系描述中的应用。最后用Visual C＃语言编程实现了该方法，并将其应用到线状道路/面状河流目标间的数据质量检查与修正中，验证可行性。
침대선/면세분탁복관계연구존재적불족，제출료일충기우결점도적선/면세분탁복관계묘술여계산방법。해방법재정의선/면단원교선병분석기특점적기출상，인입결점도래구분선/면단원교선세분류형。근거단원교선단점재선/면목표조성도형결구중결점도적불동，급선목표재도위3화4적교선단점처시부유상련선단、상련선단위우다변형적변계상、내부혹외부4개위사추도출료21충유의의적선/면교선세분탁복관계류형。재차기출상분석비교료본문방법여현유방법적이동여우세，거례설명본문방법재복잡선/면세분탁복관계묘술중적응용。최후용Visual C＃어언편정실현료해방법，병장기응용도선상도로/면상하류목표간적수거질량검사여수정중，험증가행성。
In order to overcome the shortcoming of the current models in discriminating the refined topological relations between line and polygon,a node‐degree based refined line/polygon topological relationship model is presented.In this model,the unit line/polygon intersection segment is defined at first, then node‐degree is introduced to refine the unit intersection segment.21 refinement line/polygon intersec‐tion segment types are differentiated using the degree of the end points of the intersection segment,and the relationship between the polygon and the next segment of the line object at the end point(s)with 3 or 4 degree values.The comparison is carried out between the proposed node‐degree based model and the cur‐rent model.The discrimination of the refined line/polygon relations with multiple intersections is described using an example.The effectiveness of this model is verified by the topological integrity checking between road and river data.