The directives processed by the SDF3 reader are listed below. The suffixes shown are prefixed by the reader keyword in a mapping file. By default, the <ReaderKeyword> for the SDF3 reader is SDF3.
DATASET
Required/Optional: Required
The value for this keyword is the path of the SDF3 file to be read. A typical mapping file fragment specifying an input SDF3 dataset looks like:
SDF3_DATASET /usr/data/sdf/data.sdf
Workbench Parameter: Source Autodesk MapGuide Enterprise SDF File(s)
DEF
Required/Optional: Optional
This optional specification is used to limit the available and defined feature classes that will be read. If no IDs are specified, then all defined and available feature classes are read. The syntax of the IDs keyword is:
SDF3_IDs <featureType1> \ <featureType2> \ <featureTypeN>
The feature types must match those used in DEF lines.
The example below selects only the ROADS feature class for input during a translation:
SDF3_IDs ROADS
REMOVE_SCHEMA_QUALIFIER
Required/Optional: Optional
The value for this keyword is either yes or no. A value of yes indicates that the feature type name in FME should not contain the schema name prefix before the table name. The default value of no indicates the table name will contain the schema prefix separated by a period.
SDF3_REMOVE_SCHEMA_QUALIFIER NO
SDF3_DEF default.mytable
or
SDF3_REMOVE_SCHEMA_QUALIFIER YES
SDF3_DEF mytable
SEARCH_ENVELOPE
Using the minimum and maximum x and y parameters, define a bounding box that will be used to filter the input features. Only features that interact with the bounding box are returned.
If all four coordinates of the search envelope are specified as 0, the search envelope will be disabled.
Mapping File Syntax
<ReaderKeyword>_SEARCH_ENVELOPE <minX> <minY> <maxX> <maxY>
Note: If all four coordinates of the search envelope are specified as zero, the search envelope will be disabled.
Required/Optional
Optional
Workbench Parameter
Minimum X, Minimum Y, Maximum X, Maximum Y
SEARCH_ENVELOPE_COORDINATE_SYSTEM
This directive specifies the coordinate system of the search envelope if it is different than the coordinate system of the data.
The COORDINATE_SYSTEM directive, which specifies the coordinate system associated with the data to be read, must always be set if the SEARCH_ENVELOPE_COORDINATE_SYSTEM directive is set.
If this directive is set, the minimum and maximum points of the search envelope are reprojected from the SEARCH_ENVELOPE_COORDINATE_SYSTEM to the reader COORDINATE_SYSTEM prior to applying the envelope.
Required/Optional
Optional
Mapping File Syntax
<ReaderKeyword>_SEARCH_ENVELOPE_COORDINATE_SYSTEM <coordinate system>
Workbench Parameter
Search Envelope Coordinate System
CLIP_TO_ENVELOPE
This directive specifies whether or not FME should clip features to the envelope specified in the SEARCH_ENVELOPE directive.
Values
YES | NO (default)
Mapping File Syntax
<ReaderKeyword>_CLIP_TO_ENVELOPE [yes | no]
Workbench Parameter
Clip To Envelope
EXPOSED_ATTRS
This directive allows the selection of format attributes to be explicitly added to the reader feature type.
This is similar to exposing format attributes on a reader feature type once it has been generated; however, it is even more powerful because it enables schema-driven applications other than Workbench to access and leverage these attributes as if they were explicitly on the schema as user attributes.
The result of picking a list of attributes is a comma-separated list of attribute names and types that will be added to the schema features. Currently all reader feature types will receive the same set of additional schema attributes for a given instance of the reader.
Required/Optional
Optional
Mapping File Syntax
Not applicable.
While it is possible for FME Objects applications to invoke this directive, the required format is not documented.
This directive is intended for use in our GUI applications (for example, Workbench) only.
Workbench Parameter
Additional Attributes to Expose