Support for XY Tables

Spectrum Spatial has the ability to access a non-spatial table as a spatial table. This is achieved by combining two numeric columns that represent the X and Y ordinates of a point into a geometry column that always produces a point.

A table is identified as an XY table in several ways.

  • An entry exists in the MAPINFO_MAPCATALOG, the X and Y columns and coordinate system are identified. The X and Y columns will be fused together as a geometry column.
  • The XY table was created using Spectrum Spatial Manager. An entry in the MAPINFO_MAPCATALOG is not necessary. See Creating an XY Table.
  • The columns and coordinate system are explicitly defined in the named table definition.