Identifier: mapping
Identifier: mappingprojection
The current cartographic projection used for projecting longitude/latitude points to Cartesian and vice versa.
Once mapping is set, it is assumed that all points and graphic co-ordinates are in the projection. Changing its value will not automatically transform entities in the graphic database from one projection to another. This must be done manually.
However, changing its value may force a change to the value of the system string units, since for a Long/Lat projection modeling units must be "ll", but for Cartesian projections modeling units can be anything other than "ll".
At system start-up mapping has a null value implying no projection.
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Identifiers: |
epsg# (projection), ll_proj (projection), srid# (projection), units (string) |
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