CAJ | 학술논문

为适应天津港GIS系统建设需求,将传统的CAD数据转换为GIS格式的数据已经成为必需.而由于长期的绘图手段和绘图习惯,CAD数据存在着点、线不合规范,面不闭合,层与层内的图形混乱等现象,使CAD数据与GIS数据的结构存在很大差异,不能将CAD数据完整地向GIS数据迁移.在分析目前CAD数据到GIS数据迁移中存在问题的基础上,深入探讨天津港基础地形图数据转移为GIS数据的逻辑结构、分层设计和属性设计等解决方法.
위괄응천진항GIS계통건설수구,장전통적CAD수거전환위GIS격식적수거이경성위필수.이유우장기적회도수단화회도습관,CAD수거존재착점、선불합규범,면불폐합,층여층내적도형혼란등현상,사CAD수거여GIS수거적결구존재흔대차이,불능장CAD수거완정지향GIS수거천이.재분석목전CAD수거도GIS수거천이중존재문제적기출상,심입탐토천진항기출지형도수거전이위GIS수거적라집결구、분층설계화속성설계등해결방법.
In order to adapt to the GIS construction of Tianjin Port,it is necessary to convert the traditional CAD data to the standard format of GIS data. Due to the mapping method and habit,the irregular point and theline in CAD data;unclosed polygons and disorder figures of layers and in the layer for a long time,the structure of CAD data and GIS data are much different. It is too hard to transplant CAD data to GIS data entirely. Basing on the analysis of the questions in the process of CAD data transplanted to GIS data,the logical structure of the CAD data of Tianjin Port, the design of the layers and attributes are deeply discussed in this paper.