Georeferenced Polygon Terms

You can constrain a Geoscience dataset (GDS) query by using a Georeferenced polygon as an input to the filter. The types of geometry that is supported are SDMv2 (.sdm) or Well Known Text (WKT) format.

See Also
Editing Geoscience Dataset

Properties of a Valid Georeferenced Polygon

To describe the boundaries of boreholes in the Geoscience Interpretation app, you can define the geospatial boundaries of the boreholes using a geometric feature. In the workspace of the app, you can add the feature that consists of vertices with appropriate geospatial position that also displays the surveyed boreholes. You can define the boundary of the edges of the geometry of an area and any borehole whose collar location is located within the area. You can only use a geometry artefact that is not two distinct polygons.

You can create a valid georeferenced polygon that can be used in a GDS query if the polygon:

  • Contains a single and distinct polygon.
  • Contains only one ring.
  • The ring is closed (that is, the first and last points are the same).
  • The ring contains at least four points (a minimum polygon is a triangle with the same first and last points.)
Term Description
Georeferenced polygon

A geometric feature containing geospatial information that you can use to highlight an area of interest.
Surpac An application that is used in various mining and geology processes.
SDMv2 file format A file format for geometry exported from Surpac. For the SDMv2 file format, apply a CRS (coordinate reference system) to the SDM file, before using it in a query.
Note: Geometry with a single object containing a single segment is supported.
WKT file format Well-Known Text, a file format for specifying geometry. If you cannot import an existing georeferenced polygon, you can use the WKT format to describe the constraining shape.