ItemId |
The variable ItemId is a unique serial number. See Database Item IDs for details. |
Name |
The name of the item (e.g. a city, or a country). In the case of a BLOB (ItemKind = gitBLOB) the name holds the file name of the BLOB. |
Altitude |
Specifies the altitude of the item. |
ClassFlag |
Specifies the class the database entry belongs to. The user may define any class number except 255, since this is used by the search functions as a placeholder for undefined class numbers. |
Tag |
Can be set by the user - it is not used by the database system. The tag is typically used to extend the database functionality. |
LatLow, LatHigh |
Contains the lowest and the highest latitude of all polygon points of the database entry. If an entry does not have any extents, both the low and the high latitude should be set to the same value. |
LongLow, LongHigh |
Contains the lowest and the highest longitude of all polygon points of the database entry. If an entry does not have any extents, both the low and the high longitude should be set to the same value. |
Date |
The date of creation/modification of the database entry. |
StateFlag |
The state of the database entry. |
ItemKind |
The type of database entry. See TgdbItem for details. |
BlobOffset |
File offset of additional data stored in the file *.gdd as binary large object (BLOB). A value of -1 indicates that there is no BLOB attached to this item. |
NumPoints |
Number of polygon points. NumPoints is only valid if ItemKind is set to one of the following values: gitBorder, gitRiver, gitRoad, gitCity, or gitLake. |
Closed |
This flag indicates whether a polygon is closed or not. |
Size |
The size of the BLOB structure in bytes. |