Spatial Targeting using Queries in a Gocad-based 3-D GIS Environment

John McGaughey and Kevin Sprague and Eric de Kemp and Winston Wong. ( 2004 )
in: 24th gOcad Meeting, ASGA

Abstract

A query engine for spatial targeting within a 3-D GIS software environment is introduced. Input to a query consists of parameters relevant to the query type together with a set of common earth modelling objects such as point sets, polygonal lines, surfaces, voxets, and/or stratigraphic grids or a region within such objects. Output is a region within each of the input objects containing nodes or grid cells where the query was true. We provide example scenarios where 3-D queries are used to guide spatial targeting within a near-mine or regional map scale setting. Applications can be easily generalised to any geoscience domain (petroleum, environmental, geotechnical, etc.). Query types supported are as follows: proximity (to a “probe” object), property, shell (containment within a closed surface), meta-data, feature (dome, depression, curvature), trend (dip plane, vector) and intersection. Not all queries are possible with all objects. Standard set theoretical operations for query results regions are supported via the chosen software development platform (gOcad).

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    BibTeX Reference

    @inproceedings{McGaugheyRM2004,
     abstract = { A query engine for spatial targeting within a 3-D GIS software environment is introduced. Input to a query consists of parameters relevant to the query type together with a set of common earth modelling objects such as point sets, polygonal lines, surfaces, voxets, and/or stratigraphic grids or a region within such objects. Output is a region within each of the input objects containing nodes or grid cells where the query was true. We provide example scenarios where 3-D queries are used to guide spatial targeting within a near-mine or regional map scale setting. Applications can be easily generalised to any geoscience domain (petroleum, environmental, geotechnical, etc.). Query types supported are as follows: proximity (to a “probe” object), property, shell (containment within a closed surface), meta-data, feature (dome, depression, curvature), trend (dip plane, vector) and intersection. Not all queries are possible with all objects. Standard set theoretical operations for query results regions are supported via the chosen software development platform (gOcad). },
     author = { McGaughey, John AND Sprague, Kevin AND de Kemp, Eric AND Wong, Winston },
     booktitle = { 24th gOcad Meeting },
     month = { "june" },
     publisher = { ASGA },
     title = { Spatial Targeting using Queries in a Gocad-based 3-D GIS Environment },
     year = { 2004 }
    }