SVG Specification And Applications Of Coal Mine Spatial Information System

Coal Mine Spatial Information System is a material application of Geographic Information System (GIS) in the field of coal mine production management safely, is developed by Xi'an Composed Information Technology Ltd. With the development of computer network fleetly, meanings and application of GIS's extension continuously, development direction of the Coal Mine Spatial Information System trend to information,network and standardization too.Emphasis of the paper is introducing Scalable Vector Graphics (SVG) technology into the Coal Mine Spatial Information System.And probes into technique advantages and practicality worth of SVG standardization use in two-dimensional vector graphics of mine.This paper researchs seriously data structure and organization of two-dimensional vector mine graphics in CGIS;in use of two-dimensional vector graphics editor that developeds and designs by myself a lot of signs of mine graphics; provides standardization Document Type Definition definitions of mine graphics; implements XML documents into SVG docments by XSLT; and puts forward resolve schemes for key technique that transforming mine drawings into SVG files format; in order to convenience of user, achieve program design functional of mine drawing transformation into SVG; transforms mine drawing files into SVG file format; and then carry out mine drawing files SVG standardization.On this basis, refers to SVG characteristic and network,standardization need of mine drawing, the paper brings forward SVG Specification basis requests of Coal Mine Spatial Information System, standards mine graphics files data uniform standards format of Coal Mine Spatial Information System, provides necessary preparation for network development of mine drawings.It uniforms standardization format of mine drawing WebGIS issuance, provides reference of mine software for the rest software developer. Coal Mine Spatial Information System SVG Standardization can resolve a lot of problems in the development of Coal Mine Spatial Information System: zoom distortion,network transport slowness,nonstandard data format,poor share,difficulty network issuance,poor cross-platform and content representation absence interactive and so on.In the last,take mine geology drawing SVG Standardization of the GuoBei Mine is part of the HuaiBei Mining Group for an example, shows application of Coal Mine Spatial Information System SVG Standardization, validates the paper achieve originally project aim.