Reader Directives
This section describes the directives that are recognized by the AutoCAD reader. This reader provides almost all of the functionality available within the AutoCAD DWG/DXF Reader with the addition of the following.
CIVIL_SCHEMA_MODE
Required/Optional: Optional
This option specifies the types of AutoCAD drawing entities which will be included in schema generation and data retrieval. If this directive is set to civil_only, then the AutoCAD Civil 3D Reader will use FME Feature Types to represent types of Civil 3D specific entities such as pipes. If this directive is set to civil_and_cad, then in addition to FME Feature Types to representing types of Civil 3D specific entities, the AutoCAD Civil 3D Reader will used additional FME Feature Types to represent layers. All of the CAD entities in the AutoCAD drawing will be read according to the layer on which they are located. Although Civil 3D specific entities also belong to layers, they will only be read according to their object types.
Values: CIVIL_ONLY | CIVIL_AND_CAD
Default value: CIVIL_ONLY
READ_PIPE_AND_STRUCT_DATA_FIELDS
Instructs the AutoCAD Reader regarding reading of data fields on pipe network parts, known as Pipe and Structure entities.
If not selected, any data fields are not read.
If selected (default), the data fields become FME feature attributes on features representing Pipe or Structure entities.
Required/Optional
Optional
Values
Yes | No
Default Value
Yes
Workbench Parameter
Read Pipe and Structure Data Fields
READ_PARCEL_USER_PROPS
Instructs the AutoCAD Reader regarding reading of user defined properties on Parcel entities.
If not selected (default), any user defined properties on Parcel entities are not read.
If selected, user-defined properties become FME feature attributes on features representing Parcel entities.
Required/Optional
Optional
Values
Yes | No
Default Value
No
Workbench Parameter
Read Parcel User Defined Properties
READ_COGO_USER_PROPS
Instructs the AutoCAD Reader regarding reading of user-defined properties on CoGo Point entities.
If not selected (default), any user-defined properties on CoGo Point entities are not read.
If selected, user-defined properties become FME feature attributes on features representing CoGo Point entities.
Required/Optional
Optional
Values
Yes | No
Default Value
No
Workbench Parameter
Read CoGo Point User Defined Properties
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