CAJ | 학술논문

瓦片技术的出现改变了传统WebGIS的服务架构，提高了地图数据请求响应的效率。针对多种地图投影类型或地理坐标的矢量数据在瓦片划分过程中遇到的问题，本文基于OGR地理数据模型，设计了多投影数据转换Python模块，扩展至开源应用程序TileStache，得到适用于多源投影矢量地理数据的瓦片生成工具OTileTool；从而实现矢量地理数据瓦片的快速生成，为网络地理信息系统提供了表达地理信息的GeoJSON格式瓦片数据。
와편기술적출현개변료전통WebGIS적복무가구，제고료지도수거청구향응적효솔。침대다충지도투영류형혹지리좌표적시량수거재와편화분과정중우도적문제，본문기우OGR지리수거모형，설계료다투영수거전환Python모괴，확전지개원응용정서TileStache，득도괄용우다원투영시량지리수거적와편생성공구OTileTool；종이실현시량지리수거와편적쾌속생성，위망락지리신식계통제공료표체지리신식적GeoJSON격식와편수거。
The traditional WebGIS map service architecture has been changed by tile map technology, and greatly improves the efficiency of map data request response. Multi-source spatial vector data integration is logically or physically integrated different sources, formats, scales, map projections and geodetic coordinate systems to realize geographic information sharing. Based on TileStache and OGR, the paper explores the tile generation techniques in the visualization process of multi-sources map data. A multi-projections conversion module is firstly created through OGR library, and then the module is embedded in tilestache-seed modules in TileStache. After recompiling of TileStache, OTileTool-the tile generation tool of multi-projections, vector data is generated. OTileTool can be utilized a variety of multi-projections vector data to generate tiles.