System Fields
After creating a new dataset, a set of default fields will be created automatically. The default vary for dataset of different engines.
System Fields for Point Dataset
Field Description SMID Uniquely identifies the object. SMX The X coordinate of the point object. SMY The Y coordinate of the point object. SMLIBTIL The number of the tile index. SMUSERID The preserved field. Users can customize the content. SMGEOMETRYSIZE The space used to store this object in bits.
Field Description SMID Uniquely identifies the object. SMLENGTH The length of the line object. SMSDRIW The left coordinate of the enclosing rectangle of the line object. SMSDRIN The top coordinate of the enclosing rectangle of the line object. SMSDRIE The right coordinate of the enclosing rectangle of the line object. SMSDRIS The top coordinate of the enclosing rectangle of the line object. SMUSERID The preserved field. Users can customize the content. SMTOPOERROR The topology error field. This field stores values indicating different types of topology errors. SMGEOMETRYSIZE The space used to store this object in bits.
Field Description SMID Uniquely identifies the object. SMSDRIW The left coordinate of the enclosing rectangle of the region object. SMSDRIN The top coordinate of the enclosing rectangle of the region object. SMSDRIE The right coordinate of the enclosing rectangle of the region object. SMSDRIS The top coordinate of the enclosing rectangle of the region object. SMUSERID The preserved field. Users can customize the content. SMARE The area of the region object. SMPERIMETER The perimeter of the region object. SMGEOMETRYSIZE The space used to store this object in bits.
Field Description SMID Uniquely identifies the object. SMSDRIW The left coordinate of the enclosing rectangle of the text object. SMSDRIN The top coordinate of the enclosing rectangle of the text object. SMSDRIE The right coordinate of the enclosing rectangle of the text object. SMSDRIS The bottom coordinate of the enclosing rectangle of the text object. SMUSERID The preserved field. Users can customize the content. SMGEOMETRYSIZE The space used to store this object in bits.
Field Description SMID Uniquely identifies the object. SMSDRIW The left coordinate of the enclosing rectangle of the CAD object. SMSDRIN The top coordinate of the enclosing rectangle of the CAD object. SMSDRIE The right coordinate of the enclosing rectangle of the CAD object. SMSDRIS The bottom coordinate of the enclosing rectangle of the CAD object. SMUSERID The preserved field. Users can customize the content. SMGEOTYPE The code indicating the geometry type like point, polyline, ellipse, rectangle, circle, etc. SMLIBTIL The number of the tile index. SMGEOMETRYSIZE The space used to store this object in bits.
Field Description SMID Uniquely identifies the object. SMX The X coordinate of the point object. SMY The Y coordinate of the point object. SMZ The Z coordinate of the point object. SMUSERID The preserved field. Users can customize the content. SMGEOMETRYSIZE The space used to store this object in bits.
Field Description SMID Uniquely identifies the object. SMLENGTH The length of the line object. SMSDRIW The left coordinate of the enclosing rectangle of the line object. SMSDRIN The top coordinate of the enclosing rectangle of the line object. SMSDRIE The right coordinate of the enclosing rectangle of the line object. SMSDRIS The top coordinate of the enclosing rectangle of the line object. SMUSERID The preserved field. Users can customize the content. SMTOPOERROR The topology error field. This field stores values indicating different types of topology errors. SMGEOMETRYSIZE The space used to store this object in bits.
Field Description SMID Uniquely identifies the object. SMSDRIW The left coordinate of the enclosing rectangle of the region object. SMSDRIN The top coordinate of the enclosing rectangle of the region object. SMSDRIE The right coordinate of the enclosing rectangle of the region object. SMSDRIS The top coordinate of the enclosing rectangle of the region object. SMUSERID The preserved field. Users can customize the content. SMARE The area of the region object. SMPERIMETER The perimeter of the region object. SMGEOMETRYSIZE The space used to store this object in bits.