The Design And Relating Management Of Geologic Graphic Database Based On Engineering-oriented Constraint

Original data and achievement data of geological and mineral exploration are ample complicated,and there are stronger connections between them.It is the subject in this paper that using the data of geological and mineral exploration and the connections between the data effectively to provide the correct decision-making for the job of geological and mineral exploration.With extensively used of CAD technology and the development of the geological exploration field and the escalation of the construction project,it is become very important that geological exploration maps are safely accessed and effectively administrated.The subject aims at researching the approach and method that integrative management of the geological exploration data and maps.I have developed it on GeoEngine software based on GeoView as GIS platform. And the geological exploration maps and data are interactional and restricted with each other, then the consistency of the data can be ensured.Practice result has indicated,this technology raises the security,the consistency,the accurate rate and the utilization ratio of the geological exploration Data.This paper mainly studying and discussing form several aspects are following:1,The Rationale PreparesThe geological mass,geological phenomenon and geological process are very complicated,so the space data gained in geological exploration is numerous,complicated and interactional.A lot of practice results have indicated,We can using the geological date and relationships of them to express the geological mass,geological phenomenon and geological process well only by Object Oriented Analysis and Object Oriented Design.I have built entity-relation model of geological exploration,geometric object model of ichnography and geometric object model of section map basic on the method of Object Oriented Design.It have provided a rationalem for the design and relating management of geologic graphic database based on engineering-oriented constraint.The complicated geological exploration space data is managed and transfered by database method,therefore database technology is used for the management of the geological exploration maps after it appeared.In recent years,with the development of the object-relational database technology,it is more recognised and widthly applicated that the integrated management of the geological exploration space data and attribute data.using Object-Ralational database to integrated manage the geological exploration space data and attribute data is not only propitious to the consistency of the data but also benefit to the share and repeating using the data.By the same token,the Object-Ralational database technology is also the basis technology of designing and realizing the database of geological exploration maps.For improving drawing efficiency and self adaptability,the author using parameterization method and maintenance of Object-Rational Data consistency in this paper.2,Analysis of geological exploration maps and the data source of themMap is the mainly expressing form of the geological exploration achievement.The contents of the map are multifarious and disorderly and drawing process is compilated,therefor,it is one target of informatization of geological surveying and mineral resource exploration that drawing geological exploration maps by CAD technology.The Geological exploration map's characteristics are that many tapes,much quantities,rich content and complicated structure.So drawing it needs to consume gigantic amount of work.The geological exploration maps must be accurate and consistent as the basis of the achievement and actual applicative of the geological exploration work.The computer-aid design technology not only can improve working availability,but also be the prerequisite for managing and making use of the maps effectively. The consistency of the geological exploration maps is the mainly studies in this paper.Because that the Geoview software platform has strong map editor system,3D visualization function and highly integrated level with Object-Relational database,I used the Geoview software platform to design and relating management of geological graphic database based on engineering-oriented constraint.The source of the geological exploration maps which basic on Geoview software can be divided into two parts.The one comes from subject data base of Geoview,and the other comes from the 3D model of geological.For example,the drills,the galleries,the pointes of geological,the surveying pointes etc come form the database.They are stored as data sheet independence in the database.The contour line,the structure line,the stratum line in the ichnography etc come from 3D model of geological.These geology lines are exists in the three-dimensional model as a part of it.Because of the support of Geoview software platform, it is not only beneficial to the building-up the project restrains model,but also expediently to building-up the geological graphic database.And then effectively integrated manage the two kinds of data to improve the consistency and veracity of the data in geological exploration maps.3,building the model of restrictionGeological exploration maps may be divided into five types according to geometry projection and information expressed function:the type of histogram,the type of ichnography,the type of section map,three-dimensional map,the type of unfurl map and the type of analysis map.There are close interrelation between them.For example,a drill is a point object on the ichnography map,and it is a line object on the section map and three-dimensional map.And the drill histogram is describing all the instance in the drill such as hydrologic data,rock data,structure data and so on.The data on the maps are interactional and interdependent.They are needed to be kept accordant and veracious.For this purpose,designing geological graphic database need to build the project constraint with fundamental graphic as representative,and then the consistency and veracity of the data can be kept when translating data between defferent maps by the inherence relation.After geometry mass have given concrete project significance,it's constraint of shape and size are restricted by the function requirementes of the product of the project.This kind of constraint has been called engineering-oriented constraint.The concept of constraint is earliest suggested in the field of designing.In the recent years,it is also used by geological exploration graphics designing.I used it in the management of the geological graphic database in this paper.In the management of the geological graphic database,engineering-oriented constraint is the relational restriction between the geological graphic and the attribute data.I have considered that the data source of the geological exploration maps is difference,so I divide the restriction into two kinds. The one is centering on ichnography map,and the other is centering on the 3D model.I have analyzed the relationship of the data in the two kinds of restrictions,and basic that I have build the models of the two restrictions in this paper.4,Designing and realization of the database of geological exploration mapsThe subject Object-Ralational database is the platform for managing the data effectively.The effective data structure and data memory are able to bring about advantage to data administration and using.I have design the attribute database and space database in this paper,including the memory structure and the layer of the geological exploration maps.I have design the parameter model Centering on ichnography map and centering on the 3D model.And then realize them on the GeoEngine system.The general target of the paper is that building the relationship between the maps and data of geological exploration basic on the maps in the GeoEngine system.And then effectively make use of and manage the geological exploration data.The author has got the innovative achievement hereinafter by studying above content:1,Because of the tradition CAD system do not have mechanism of constrain,it can not vindicate the data consistency.I have designed the database of geological exploration maps by project constrain.And it can resolve the disadvantage of the tradition CAD system.2,I have realized correlation retrieval and isochronous renewing between attribute data and maps in geological exploration in the paper.And then manage the data synthetically.