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