多格式石油地质图在线显示查询的实现  

Online display query of geologic graph with various formats

作　　者：朱德献[1] 段秋梁 皮晓林[1] 净新苗[1] 

机构地区：[1]中国石油天然气股份有限公司冀东油田公司,河北唐山063004 [2]北京金盈盛达科技有限公司,北京100195

出　　处：《计算机应用》2010年第12期159-161,共3页journal of Computer Applications

摘　　要：目前的图形数据库不能实现多格式、大幅面石油地质图网上在线显示查询。在选择合适的图形数据库管理系统的基础上,通过大量实验,筛选出PDF格式作为通用图形转换格式,将各种格式的石油地质矢量图转换成该格式图形,作为原矢量图形在线显示的替代图形,实现图形的清晰在线显示查询。在实际的转换过程中,分析并解决了图形转换中存在的问题,将常用的各种格式的石油地质图转换成PDF格式图形。PDF图用于在线显示,原图作为其附件入库供查询下载,从而解决了各种格式矢量图在线显示和原图下载编辑问题。The various formats of small scale and large area petroleum geology graph can＇t be displayed in querying online at present.Based on the appropriate graphic database query system,through lots of experimentation,the PDF was filtered as the universal graphic conversion format.Various vector-graphs were transformed into PDF format which could be displayed online substituting for the vector-graphs.Using this method the large petroleum geology graph can be displayed clearly in zooming.In the course of the PDF conversions,some problems were analyzed and solved,and all of the petroleum geology graph in common use were transformed into PDF successfully.The PDF-transformed graph could be used for displaying online,and the original graph could be accessed as the accessory of the PDF.Thus,various formats of graph could be displayed by PDF graph online in querying,the accessories of PDF,the original graph in the database,could be downloaded and edited by the corresponding graphic drawing software,and the database of various format graph were achieved.

关 键 词：多格式 图形数据库 石油地质图 图形转换 在线显示查询 PDF格式 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]