Autodesk AutoCAD DWF Reader Parameters

DWF files support an optional password for additional security. When specified, the file cannot be opened without the password.

Specifies the maximum horizontal size in millimeters (mm) for the sheets read from the input DWF file.

Specifies the maximum vertical size in millimeters (mm) for the sheets read from the input DWF file.

Use this parameter to expose Format Attributes in Workbench when you create a workspace:

• In a dynamic scenario, it means these attributes can be passed to the output dataset at runtime.
• In a non-dynamic scenario where you have multiple feature types, it is convenient to expose additional attributes using this one parameter. For example, if you have ten feature types and want to expose the same attribute in each one, it is easier to define it once than it is to set each feature type individually in the workspace.

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 intersect with the bounding box are returned.

If all four coordinates of the search envelope are specified as 0, the search envelope will be disabled.

When selected, this parameter removes any portions of imported features being read that are outside the Search Envelope.

The example below illustrates the results of the Search Envelope when Clip to Search Envelope is not selected (set to No) and when it is selected (set to Yes).

• No: Any features that cross the search envelope boundary will be read, including the portion that lies outside of the boundary.
• Yes: Any features that cross the search envelope boundary will be clipped at the boundary, and only the portion that lies inside the boundary will be read. The underlying function for the Clip to Search Envelope function is an intersection; however, when Clip to Search Envelope is selected, a clipping operation is also performed in addition to the intersection.

When selected, this parameter explodes blocks and return the entities that form the components of the block as separate features.

When the reader resolves blocks, it outputs a feature for each of the AutoCAD entities that are part of the block definition. The original insert is not output. This results in the full graphical representation of the block transferred through FME, but the exact insertion point of the block is lost.

Each block member feature is given the attribute autocad_block_number which is set to the same value for each block so that the features comprising each block may be combined in subsequent processing. Arbitrary deep block nesting is permitted, however, the autocad_block_number attribute is only updated for each block at the outermost level.  By default, all block members will be on the same layer as that of the original block.

Usual AutoCAD-to-AutoCAD translation setting: Not selected

If the parameter Explode Blocks Into Entities is selected, and this parameter is also selected, then the insert points of exploded blocks are output as point features.

Explode Selected Blocks: This parameter is a a space-delimited list of the block names that are to be exploded, and is processed only when Explode Blocks into Entities is selected.