DXF/DWG and DWF export options

The DXF/DWG Export Options dialog box and the DWF Export Options dialog box are very similar, except for the file format settings. This is because when you export to DWF, the drawing objects are first converted to DXF/DWG, and then output in DWF format. Change the export options to retain the integrity of the Vectorworks drawings in the DXF/DWG format. The same export options display for export of single files and batches of files.

To make custom exports faster and easier, save the sets of options that you use frequently.

Parameter

Description

Saved Settings Options

See Using saved sets to save and apply saved settings

Class/Layer Mapping

 

Name

To map Vectorworks classes or layers to a specific layer naming standard at export, select a mapping set

Manage

Opens the Mapping dialog box to create, edit, and rename mapping sets (see Mapping layer and class names)

File Format

 

Format

DXF/DWG export:

Choose from three exported file formats: DXF as plain text, DXF as a binary encoding, and DWG.

One of the main differences between these formats is file size. Although individual files can vary, an uncompressed text DXF file is generally larger than an uncompressed DWG file. However, the file size can be significantly reduced by using a compression utility. A compressed text DXF file is normally smaller than a compressed DWG file. Binary DXF file sizes generally fall between the two for both compressed and uncompressed files.

In addition to file size, consider the formats that other applications can support. Before exporting to binary DXF or to DWG, ensure that the receiving party’s software can read those formats. Since binary and text DXF both use the same .dxf extension, if the DXF file cannot be opened, it may be mistakenly considered corrupted. When in doubt, export as text DXF, which is universally supported.

Certain versions of AutoCAD have issues when reading some DXF files, such as losing links to images, so DWG is usually a safer choice in that situation.

DXB is a simpler file format used by some third-party applications that do not support the full DXF or DWG file format. It is not the same as binary DXF; do not use .dxb as the extension for binary DXF files. The Vectorworks program does not support DXB.

DWF export:

Choose from five file formats: DWF as plain text, DWF as a regular or compressed binary encoding, 3D DWF, or DWFx.

Version

For best results, export to the highest version supported by the recipient’s software, or the default export version, whichever is lower. The latest versions of DXF/DWG and DWF have features more similar to the Vectorworks program and may provide a better translation, but not all software packages can read the latest versions.

Other options on the dialog box can change or become grayed depending on the version selected.

Export as georeferenced file

(Design Suite required)

If the Vectorworks file is georeferenced, this option is available. The exported file includes a geographic marker and GIS coordinate system, so when it is opened in AutoCAD, Civil3D, or other software which can read georeferenced DWG files, the geometry is positioned correctly. 

Class/Layer Conversions

 

Export as DXF/DWG Layers

This option is available if the Export option is set to Design Layers Only.

Since Vectorworks classes correspond most closely to DXF/DWG layers, normally, the Classes option is recommended. There is no direct equivalent for Vectorworks layers in DXF/DWG. A single Vectorworks design layer is similar to DXF “model space.”

This is most important for the import of groups and symbols. In a Vectorworks file, the objects in groups and symbols can belong to different classes, but they must be on the same layer. In a DXF/DWG file, the entities equivalent to Vectorworks symbols and groups (known as “blocks”) can be on different DXF/DWG layers.

When you export from a Top view, each object’s position in 3D space is preserved.

Invisible Classes/Layers Are

DXF/DWG export:

While a Vectorworks file organizes drawings by class and by layer, the DXF/DWG file format only has layers. The following description assumes that, as recommended, classes are selected for export as layers. (If instead Vectorworks layers are selected for export as DXF layers, equivalent options are presented for the layers.)

Select whether to export invisible classes or layers. If Exported As Invisible DXF/DWG Layers is selected, objects that are in invisible classes in the Vectorworks file are exported, and can be seen by making the DXF/DWG layer visible. This is the recommended option. However, if invisible classes contain private information or if the size of the exported file needs to be reduced, select Not Exported to remove these from export. If classes are visible in a design layer but invisible in a sheet layer, this option prevents them from being exported.

If invisible classes are exported as DXF layers, objects on invisible Vectorworks layers are not exported. To export these items, first make the layers visible, and then select the appropriate export command.

DWF export:

This option is grayed; only visible graphics can be exported to DWF.

Export Single Layer for Classes with Same Names

Select this option to consolidate all referenced objects that have the same class name in the Vectorworks file into a single exported layer.

If the Vectorworks file contains a class with the same name, the exported layer will assume the attributes of that class.

If the class exists only in referenced files, all “By Class” attributes of the objects assume the attributes of the class from the most recently added reference.

This consolidates all of the objects with the same class name into one exported layer with the same object attributes rather than creating a separate layer for each variation.

This option is only available when exporting classes as layers.

This option is grayed if Export Design Layer Viewports as Separate Files is selected.

Export Layers as Separate Files

For single file export, select this option to export the selected sheet layers or design layers to separate DXF/DWG or DWF files (named after the original layer); otherwise, the selected layers are exported to one file.

This option is grayed if the Export option is set to Design Layers Only, and Export As DXF/DWG Layers is set to Layers. Additionally, DWF versions 4.2 and 5.5 do not support multiple sheets, so this option is grayed if multiple sheet layers are selected for export to one of these versions.

All design layers are exported, including those that are set to be invisible.

For batch file export, this setting is ignored; each sheet layer is always exported as a separate file.

Layer Scale

 

Rescale Layers To

When the Export option is set to Design Layers Only, paper space is not used; all items are placed in model space. Model space must be at one scale; DXF/DWG files do not have different layer scales. If the layers to be exported are at various scales, the option to rescale them to a common scale before export becomes available. By default, the most frequently used layer scale will be used.

Choosing the best scale for export is important. Select Rescale Layers To and click the common scale to use from the displayed list.

Symbols on rescaled layers are exported as scaled blocks in the DXF/DWG file.

When sheets are selected for export, all design layers export to model space at effectively a 1:1 scale, and viewports take care of showing the objects at other scales.

Sheets to Include

 

Export

The options on this list change depending on the contents of the file being exported and on which export Version is selected.

Select the items to export from the list. By default, the selected layers are exported to a single file (to export multiple files instead, select Export Layers As Separate Files).

If Design Layers Only is selected, you can select either classes or layers to Export as DXF/DWG Layers. If you export the design layers as DXF layers, you cannot select Export Layers As Separate Files. Additionally, you have the option to Export as Flattened 2D Graphics when you export design layers only.

If one of the sheet options is selected, the selected sheet layers are exported as paper space layouts; also, design layers used in viewports are exported to model space. While multiple sheets can be exported to the same file, note that unrelated sheets usually should be exported to different files. Select the sheets from the list below.

If one of the saved view options is selected, saved views are each exported as separate files. Select the views from the list below.

Export Viewports as 2D Graphics in Model Space

If one of the sheet options is selected, select this option to export all 2D and 3D objects that display inside a viewport as 2D projected (flattened) graphics in model space. Each selected sheet is exported to a separate file. On re-import, all exported graphics are imported into a design layer.

Rendered viewports in any view other than Top/Plan view are exported as groups.

Non-rendered viewports in an orthogonal view (Top, Bottom, Front, Back, Left, and Right) are set to hidden line rendering and then exported as groups.

Non-rendered viewports in an isometric view (including custom views) are converted to lines before export.

Section viewports are exported as groups.

Viewport annotations are extracted from the viewport groups and exported as single entities.

All other sheet layer graphics (such as title blocks) are exported as single entities.

Sheets or View Name

If Selected Sheets or Selected Saved Views is selected as the Export option, select the sheets or saved views to export from the displayed list.

References

 

Export Design Layer Viewports as separate files

(Design Suite required)

Select this option to export each design layer viewport as a separate DXF/DWG file, named with the viewport name. If deselected, design layer viewports are bound into the master DXF/DWG file; this may cause the viewport objects to look different, because class and layer visibility overrides are not retained. This option is available only for DXF/DWG export.

Export Single Layer for Classes with Same Name is grayed when this option is selected.

Objects

 

Export only selected objects

Select this option to export only the objects that are currently selected in the drawing; this option is grayed if no objects are selected

Export as flattened 2D graphics

Select this option to export objects as follows:

Design layers: All of the objects from the design layer export as flattened 2D graphics.

Sheet layers: Section viewports export as groups directly in the paper space. Top/Plan viewports export as DXF viewports in the paper space, with corresponding flattened source graphics in the model space. Viewports with a view other than Top/Plan export in the paper space as blocks of lines, polys, or other primitives, depending on the current viewport rendering mode; no corresponding source graphics are provided in the model space.

This option is selected and cannot be changed if Export Viewports as 2D graphics in Model space is selected.

Use data visualization and overridden attributes

Select this option to export objects within viewports with their overridden graphic attributes (fill/pen style/color and line start/end markers) from either a data visualization applied to the viewport or class overrides applied to the viewport, when possible. If this setting conflicts with other settings, the export preserves the objects’ appearance after export, even if that means losing class definitions and attributes.

This option could significantly increase the size of the resulting file, or the number of files if design layer viewports are exported as a separate file.

Text

 

Preserve mapped font on export

If the file contains text that has been mapped to a different font, select this option to export the text with the replacement font; if the option is disabled, the text is exported with the original font

2D Fills and Files

 

Export 2D Fills

Select this option to export solid fills as wipeouts (DXF/DWG versions 2000 and later) or solid hatches (DXF/DWG version 14 and higher). You can control the export of tile and image fills separately.

Select Export Tile fills to export tile fills as clipped blocks; otherwise they are exported as solid fills or wipeouts (depending on the tile fill background color).

Select Export Image fills to export image fills as clipped images; otherwise they export as solid fills. This option is only enabled for DXF/DWG versions 14 or higher.

Export Images and Image Files

Select this option to export image objects and image files (for example, PDFs and logos). This option is only enabled for DXF/DWG versions 14 or higher.

Export Hatches

Select this option to export Vectorworks hatches as bhatches; no hatch pattern files are created unless Export Hatch Pattern Files is also selected

Export Hatch Pattern Files

If Export Hatches is enabled, select this option to create additional hatch pattern (.pat) files in a specified folder. A Vectorworks hatch with multiple levels and colors generates multiple hatch pattern definitions. See Preparing to export for more information on the conversion.

The hatch pattern files, and the DXF/DWG exported file and any support files, such as .jpg images, are placed in this folder. AutoCAD requires the hatch pattern files to retain the hatch associativity and to add hatches to additional objects with the same hatch pattern. When Export Hatch Pattern Files is disabled, AutoCAD displays the hatch but cannot edit it.

This option is grayed during DWF export.

Export Hatches and 2D Fills into Separate DXF/DWG Layers

Select this option to export all of the fills, patterns, gradients, and hatches within a class (or design layer, if layers are exported to DXF/DWG layers) to a separate DXF/DWG layer. The DXF/DWG layers are named after the original class or layer that contains the object to which the fill, pattern, gradient, or hatch is applied. For example, if the Vectorworks file has an object on the “Hardscape” layer with a hatch applied to it, the export file will have a layer called “Hardscape_Hatch.”

3D

 

Export Solids as ACIS Solids

Select this option to export most Vectorworks solids and NURBS surfaces as ACIS objects. Deselect this option to export solids as polygonal faces (if the target software package cannot read ACIS solids, for example).

Walls, roof and floor slabs, filled 3D polygons, meshes, and NURBS curves cannot be exported as ACIS solids.

This option is grayed during DWF export.

Triangulate to Preserve Fills

Some software packages, such as AutoCAD, are not capable of rendering exported 3D surfaces that have more than three or four vertices per face. Select this option to break up such faces into a set of triangles that can be properly rendered. The algorithm used works best on planar or nearly planar surfaces, such as the top of an extruded circle.

Even if Export Solids as ACIS Solids is selected, this option may be used to handle 3D objects that cannot be exported as ACIS solids.

When in doubt, select this option (this increases the exported file size and the time necessary to export it, and may result in unwanted lines in some cases).

Symbols and Groups

 

Decompose 3D Symbols and Groups

Some software packages cannot handle exported groups and symbols. If a problem occurs, select Decompose 3D Symbols and Groups to convert symbols and groups to ungrouped objects. Do not select this option unless it is absolutely necessary.

This option is grayed during DWF export.

Export Groups as Anonymous Blocks

Normally, Vectorworks groups are exported as named blocks, which can be opened and edited in other software packages. However, the named blocks are imported back into Vectorworks files as symbols. If this creates a problem, select Export Groups as Anonymous Blocks, which are imported back into Vectorworks files as groups.

This option is grayed during DWF export.

Dimensions

 

Preserve SIA Dimension Text Appearance

Select this option to maintain the SIA dimension superscript formatting upon export. Dimensions are converted to non-interactive objects.

Deselect this option to change the SIA dimensions to a non-superscript dimension format.

Line Types

 

Export Complex Line Types as Blocks

Select this option to export complex Vectorworks line types as anonymous blocks, which preserves the exact appearance of the drawing. If the option is disabled, complex line types export as true line types, and additional graphic information is compiled into a shape file (.shx).

Line Weights and Colors

 

Use True Colors

Exports line colors with the Vectorworks RGB values, and converts line weights to the closest possible DXF/DWG weight value. Named Vectorworks colors export as named DXF/DWG true colors.

For DXF/DWG version 2004 and later, select this option only if the exported file will not be used with a .ctb file for plotting or printing in AutoCAD. If the exported file is intended to be used with a .ctb file later on, select Use DXF/DWG Indexed Colors instead.

Use DXF/DWG Indexed Colors

Exports line colors with DXF/DWG indexed color values, and converts line weights to the closest possible DXF/DWG weight value.

Unlike Use True Colors, this option allows you to use the exported file with a .ctb file for plotting or printing in AutoCAD. You can either use a predefined .ctb file, or select Map Line Weights to Colors to create a .ctb file specific to this drawing upon export.

Map Line Weights to Colors

If Use DXF/DWG Indexed Colors is selected, this additional option creates a .ctb file for each exported DXF/DWG file (named after the original .vwx file) to be used during plotting or printing in AutoCAD. The AutoCAD user must put this file in the support path, as AutoCAD does not read the .ctb file when it is simply included in the same folder as the DXF/DWG file.

During the export process, a list of line thicknesses (weights) in the file displays. Specify the color to map to each of these line thicknesses. To select a different color for a selected line thickness, click the color box and select a color from the displayed options.

If Export Layers As Separate Files is also selected, the mapping dialog box does not display; instead, the Vectorworks program automatically maps line thickness to colors according to a predefined standard.

To avoid having a color table file for each exported file, use a single .ctb file for each unique mapping set, and delete the others. When an exported file is opened in AutoCAD, edit the page setup and choose an appropriate color table file.

When you import the file back into the Vectorworks program, use the reverse process to convert the colors back to line thickness.

Line thickness conversions

VW line thickness (mm)

DXF line weight (mm)

 

VW line thickness (mm)

DXF line weight (mm)

0

Deleted

 

0.52–0.56

0.53

0.01–0.07

0.05

 

0.57–0.65

0.60

0.08–0.11

0.09

 

0.66–0.75

0.70

0.12–0.14

0.13

 

0.76–0.85

0.80

0.15–0.16

0.15

 

0.86–0.95

0.90

0.17–0.19

0.18

 

0.96–1.03

1.00

0.20–0.22

0.20

 

1.04–1.13

1.06

0.23–0.27

0.25

 

1.14–1.30

1.20

0.28–0.32

0.30

 

1.31–1.49

1.40

0.33–0.37

0.35

 

1.50–1.75

1.58

0.38–0.45

0.40

 

1.76–2.05

2.00

0.46–0.51

0.50

 

2.06–6.48

2.11

 

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