In addition to the generic FME feature attributes that FME Workbench adds to all features (see Feature Attributes and Supported Geometries), this format adds a format-specific attribute described in this section and the format-specific attributes described in the Text File Reader documentation.
Features read from a database consist of geometry and a series of attribute values. The feature type of each GeoPackage feature is as defined in its Feature Type parameters. Features written to the database have the destination table as their feature type, and attributes as defined in Feature Type attributes.
The GeoPackage attribute type mapping is as follows:
| GeoPackage Attribute Type | FME Attribute Type |
|---|---|
| text | fme_buffer |
| text(width) | fme_varchar(width) |
| text(width) | fme_char(width) |
| blob | fme_buffer |
| blob(width) | fme_varchar(width) |
| tinyint | fme_char |
| text(1) | fme_char |
| date | fme_date |
| datetime | fme_datetime |
| datetime | fme_time |
| float | fme_real32 |
| double | fme_real64 |
| double | fme_decimal(width, decimal) |
| boolean | fme_boolean |
| smallint | fme_int16 |
| smallint | fme_uint8 |
| mediumint | fme_int32 |
| mediumint | fme_uint16 |
| int | fme_int64 |
| int | fme_uint32 |
| text(20) | fme_uint64 |
Geometry
The geometry of GeoPackage features may be identified by the geopackage_type attribute.
If incoming features are not compatible with the geometry specified in the feature type parameters, geopackage_type will be written as geopackage_none.
The valid values for this attribute are:
| geopackage_type | Description |
|---|---|
|
geopackage_geometry |
All geometries allowed. All types are subtypes of this type. |
|
geopackage_point |
Point feature. Parent type: geopackage_geometry |
|
geopackage_curve |
Feature with curve geometry. This is an abstract geometry type, and the reader will not create features of this type. A table can be created with this type, but features written to the table must be one of the following subtypes:
Parent type: geopackage_geometry |
|
geopackage_linestring |
Linear feature. Parent type: geopackage_curve |
|
geopackage_circularstring |
Arc by 3 points feature. Parent type: geopackage_curve |
|
geopackage_compoundcurve |
Path feature made up of one or more curve segments. Parent type: geopackage_curve |
|
geopackage_surface |
Feature with area geometry. This is an abstract geometry type, and the reader will not create features of this type. A table can be created with this type, but features written to the table must be one of the following subtypes:
Parent type: geopackage_geometry |
|
geopackage_curvepolygon |
Polygon or donut feature with boundaries that may include arcs. Features written to a table of this type can also be the following subtype:
Parent type: geopackage_surface |
|
geopackage_polygon |
Simple polygon or donut feature. Parent type: geopackage_curvepolygon |
|
geopackage_geometrycollection |
Feature with multiple geometries. Features written to a table of this type can also be one of the following subtypes:
Parent type: geopackage_geometry |
|
geopackage_multipoint |
Feature with multiple point geometries. Parent type: geopackage_geometrycollection |
|
geopackage_multicurve |
Feature with multiple curve geometries. Features written to a table of this type can also be the following subtype:
Parent type: geopackage_geometrycollection |
|
geopackage_multilinestring |
Feature with multiple line geometries. Parent type: geopackage_multicurve |
|
geopackage_multisurface |
Feature with multiple area geometries. Features written to a table of this type can also be the following subtype:
Parent type: geopackage_geometrycollection |
|
geopackage_multipolygon |
Feature with multiple polygon geometries. Parent type: geopackage_multisurface |
|
FME Feature with no geometry. A table created with this type will be an Attributes table. |