Difference between revisions of "Import Export Preference"

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|  Select what will be imported.<br/>If '''texts and dimensions''' is unchecked, texts and [https://www.autodesk.com/techpubs/autocad/acad2000/dxf/mtext_dxf_06.htm mtexts] won't be imported.
 
|  Select what will be imported.<br/>If '''texts and dimensions''' is unchecked, texts and [https://www.autodesk.com/techpubs/autocad/acad2000/dxf/mtext_dxf_06.htm mtexts] won't be imported.
  
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If '''points''' is unchecked, points won't be imported.
 
If '''points''' is unchecked, points won't be imported.
  
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<!--T:195-->
 
If '''layouts''' is checked, paper space objects will be imported too.<br/>Check '''*blocks''' if you want the non-named blocks (beginning with a *) to be imported too.
 
If '''layouts''' is checked, paper space objects will be imported too.<br/>Check '''*blocks''' if you want the non-named blocks (beginning with a *) to be imported too.
 
|-
 
|-
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|  Select what will be created.<br/>If '''simple Part shapes''' is selected, only standard Part objects will be created. This is the fastest.
 
|  Select what will be created.<br/>If '''simple Part shapes''' is selected, only standard Part objects will be created. This is the fastest.
  
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<!--T:196-->
 
If '''Draft objects''' is selected, parametric Draft objects will be created whenever possible.
 
If '''Draft objects''' is selected, parametric Draft objects will be created whenever possible.
  
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If '''Sketches''' is selected, sketches will be created whenever possible.
 
If '''Sketches''' is selected, sketches will be created whenever possible.
 
|-
 
|-
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|  The export of ellipses and splines is poorly supported. Use this option to export them as polylines instead.
 
|  The export of ellipses and splines is poorly supported. Use this option to export them as polylines instead.
  
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<!--T:198-->
 
The setting '''Max Spline Segment''' is then the maximum length of each of the polyline segments. If it is set to '0' the whole spline is treated as a straight segment.
 
The setting '''Max Spline Segment''' is then the maximum length of each of the polyline segments. If it is set to '0' the whole spline is treated as a straight segment.
 
|-
 
|-
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The tab ''IGES'' is only shown in the preferences if you are in the [[Part_Module|Part]] or [[PartDesign_Workbench|PartDesign Workbench]] or if you have been in these workbenches before.
 
The tab ''IGES'' is only shown in the preferences if you are in the [[Part_Module|Part]] or [[PartDesign_Workbench|PartDesign Workbench]] or if you have been in these workbenches before.
  
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For the IGES format you can specify the following:
 
For the IGES format you can specify the following:
  
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| Selection how solids and shells should be output.
 
| Selection how solids and shells should be output.
  
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<!--T:200-->
 
If '''Groups of Trimmed Surfaces (type 144)''' is selected, they will be exported as [https://wiki.eclipse.org/IGES_file_Specification#Trimmed_Surface_.28Type_144.29 trimmed surface].
 
If '''Groups of Trimmed Surfaces (type 144)''' is selected, they will be exported as [https://wiki.eclipse.org/IGES_file_Specification#Trimmed_Surface_.28Type_144.29 trimmed surface].
  
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<!--T:201-->
 
If '''Solids (type 186) and Shells (type 514) / B-REP mode''' is selected, solids will be exported as [https://wiki.eclipse.org/IGES_file_Specification#Manifold_Solid_B-Rep_Object_.28Type_186.29 manifold solid B-Rep object], shells as [https://wiki.eclipse.org/IGES_file_Specification#Shell_.28Type_514.29 shell].
 
If '''Solids (type 186) and Shells (type 514) / B-REP mode''' is selected, solids will be exported as [https://wiki.eclipse.org/IGES_file_Specification#Manifold_Solid_B-Rep_Object_.28Type_186.29 manifold solid B-Rep object], shells as [https://wiki.eclipse.org/IGES_file_Specification#Shell_.28Type_514.29 shell].
 
|-
 
|-
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|  Creates a full parametric model on import using stored FreeCAD object properties.
 
|  Creates a full parametric model on import using stored FreeCAD object properties.
  
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<!--T:202-->
 
To get the FreeCAD properties, the model must have been exported using the option {{MenuCommand|Export full FreeCAD parametric model}}. {{Version|0.19}}
 
To get the FreeCAD properties, the model must have been exported using the option {{MenuCommand|Export full FreeCAD parametric model}}. {{Version|0.19}}
 
|-
 
|-
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|  When exporting an IFC file, if no building is found in the FreeCAD document, a default one will be added.
 
|  When exporting an IFC file, if no building is found in the FreeCAD document, a default one will be added.
  
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<!--T:203-->
 
'''Warning''': The IFC standard asks for at least one building in each file. By turning this option off, you will produce a non-standard IFC file.
 
'''Warning''': The IFC standard asks for at least one building in each file. By turning this option off, you will produce a non-standard IFC file.
  
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<!--T:204-->
 
However, at FreeCAD we believe having a building should not be mandatory, and this option is there to have a chance to demonstrate our point of view. {{Version|0.19}}
 
However, at FreeCAD we believe having a building should not be mandatory, and this option is there to have a chance to demonstrate our point of view. {{Version|0.19}}
 
|-
 
|-
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The tab ''Abaqus INP'' is only shown in the preferences if you are or if you have been in the [[FEM_Module|FEM Workbench]] before.
 
The tab ''Abaqus INP'' is only shown in the preferences if you are or if you have been in the [[FEM_Module|FEM Workbench]] before.
  
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<!--T:205-->
 
For the INP format you can specify the following:
 
For the INP format you can specify the following:
  
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| Selection what mesh element parameters should be exported.
 
| Selection what mesh element parameters should be exported.
  
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<!--T:206-->
 
If '''All''' is selected, all elements will be exported.
 
If '''All''' is selected, all elements will be exported.
  
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<!--T:207-->
 
If '''Highest''' is selected, only the highest elements will be exported. This means for means volumes for a volume mesh and faces for a shell mesh.
 
If '''Highest''' is selected, only the highest elements will be exported. This means for means volumes for a volume mesh and faces for a shell mesh.
  
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<!--T:208-->
 
If '''FEM''' is selected, only FEM elements will be exported. This means only edges not belonging to faces and faces not belonging to volumes.
 
If '''FEM''' is selected, only FEM elements will be exported. This means only edges not belonging to faces and faces not belonging to volumes.
 
|-
 
|-
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The tab ''Mesh Formats'' is only shown in the preferences if you are in the [[Mesh_Workbench|Mesh Workbench]] or if you have been in this workbench before.
 
The tab ''Mesh Formats'' is only shown in the preferences if you are in the [[Mesh_Workbench|Mesh Workbench]] or if you have been in this workbench before.
  
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<!--T:209-->
 
For the Mesh formats you can specify the following:
 
For the Mesh formats you can specify the following:
  
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|-
 
|-
 
| {{MenuCommand|Scheme}}
 
| {{MenuCommand|Scheme}}
| Selection what STEP application protocol (AP) will be used for the export.<br/>'''AP 203''' is the protocol for configuration controlled 3D designs of mechanical parts and assemblies.<br/>'''AP 204''' is the protocol for core data for automotive mechanical design processes.
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| Selection what STEP application protocol (AP) will be used for the export.
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<!--T:210-->
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'''AP 203''' is the protocol for configuration controlled 3D designs of mechanical parts and assemblies.
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<!--T:211-->
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'''AP 204''' is the protocol for core data for automotive mechanical design processes.
 
|-
 
|-
 
| {{MenuCommand|Enable STEP Compound merge}}
 
| {{MenuCommand|Enable STEP Compound merge}}
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<!--T:183-->
 
<!--T:183-->
[https://en.wikipedia.org/wiki/Scalable_Vector_Graphics Scalable Vector Graphics] (SVG) is a [https://en.wikipedia.org/wiki/Vector_graphics vector image]  format for two-dimensional graphics. The vectors make SVG are very useful for technical drawing programs like FreeCAD's [[TechDraw_Module|TechDraw]] because a vector image can be scaled to any size without losing its shape or amount of details. SVG can be scaled to any required resolution and converted to bitmap formats like PNG or JPEG for printing.
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[[SVG|Scalable Vector Graphics]] (SVG) is a [https://en.wikipedia.org/wiki/Vector_graphics vector image]  format for two-dimensional graphics. The vectors make SVG are very useful for technical drawing programs like FreeCAD's [[TechDraw_Module|TechDraw Workbench]] because a vector image can be scaled to any size without losing its shape or amount of details. SVG can be scaled to any required resolution and converted to bitmap formats like PNG or JPEG for printing.
  
 
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|-
 
|-
 
| {{MenuCommand|Import style}}
 
| {{MenuCommand|Import style}}
| Selection how SVG object colors and line widths will be imported.<br/>If '''None (fastest)''' is selected no color and line width settings will be imported.<br/>If '''Use default color and linewidth''' is selected FreeCAD will use its default color and line width.<br/>If '''Original color and linewidth''' is selected FreeCAD will use the color and linewidth from the SVG objects.
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| Selection how SVG object colors and line widths will be imported.
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If '''None (fastest)''' is selected no color and line width settings will be imported.
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<!--T:213-->
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If '''Use default color and linewidth''' is selected FreeCAD will use its default color and line width.
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If '''Original color and linewidth''' is selected FreeCAD will use the color and linewidth from the SVG objects.
 
|-
 
|-
 
| {{MenuCommand|Disable units scaling}}
 
| {{MenuCommand|Disable units scaling}}
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|-
 
|-
 
| {{MenuCommand|Export style}}
 
| {{MenuCommand|Export style}}
| Selection how Sketches are exported to SVG.<br/>If '''Translated (for print & display)''' is selected, SVG objects are encapsulated in a group that is scaled and moved to the correct place in the SVG document to fit into a printable area.<br/>If '''Raw (for CAM)''' is selected, SVG objects are placed as they are - at the same coordinates as in the FreeCAD model (1:1 export).
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| Selection how Sketches are exported to SVG.
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<!--T:215-->
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If '''Translated (for print & display)''' is selected, SVG objects are encapsulated in a group that is scaled and moved to the correct place in the SVG document to fit into a printable area.
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<!--T:216-->
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If '''Raw (for CAM)''' is selected, SVG objects are placed as they are - at the same coordinates as in the FreeCAD model (1:1 export).
 
|-
 
|-
 
| {{MenuCommand|Translate white line color to black}}
 
| {{MenuCommand|Translate white line color to black}}
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The tab ''VTK'' is only shown in the preferences if you are or if you have been in the [[FEM_Module|FEM Workbench]] before.
 
The tab ''VTK'' is only shown in the preferences if you are or if you have been in the [[FEM_Module|FEM Workbench]] before.
  
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For the VTK format you can specify the following:
 
For the VTK format you can specify the following:
  
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| Selection what objects should be imported.
 
| Selection what objects should be imported.
  
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If '''VTK result object''' is selected, a FreeCAD FEM VTK result object will be imported (equals to the object which was exported).
 
If '''VTK result object''' is selected, a FreeCAD FEM VTK result object will be imported (equals to the object which was exported).
  
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<!--T:219-->
 
If '''FEM mesh object''' is selected, the results in the VTK file will be omitted, only the mesh data will be imported and a FreeCAD FEM mesh object will be created.
 
If '''FEM mesh object''' is selected, the results in the VTK file will be omitted, only the mesh data will be imported and a FreeCAD FEM mesh object will be created.
  
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<!--T:220-->
 
If '''FreeCAD result object''' is selected, the imported data will be converted into a FreeCAD FEM Result object. '''Note:''' this setting needs the exact result component names and thus it only works properly with VTK files exported from FreeCAD.
 
If '''FreeCAD result object''' is selected, the imported data will be converted into a FreeCAD FEM Result object. '''Note:''' this setting needs the exact result component names and thus it only works properly with VTK files exported from FreeCAD.
 
|}
 
|}
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{{Userdocnavi}}
 
{{Userdocnavi}}
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</translate>
 
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Latest revision as of 11:39, 23 September 2019

Other languages:
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The preferences for the importing and exporting tools are found in the Preferences Editor, in the menu Edit → Preferences → Import-Export.

The number of tabs varies depending on the file types available to perform conversion.

The Import-Export settings affect how files are imported and exported to and from FreeCAD. Note that the Import-Export preferences dialog offers file type settings for most workbenches but not every workbench is able to import/export all file types.

FreeCAD supports many file formats. For the following file formats it offers to apply special settings:

DAE

The Collada DAE (Digital Asset Exchange) format is a standard file format for exchange of Mesh data. The Arch workbench can import meshes from .dae files, and export Arch and other Shape-based objects to the .dae format. The Collada import functionality in the Arch module depends on pycollada. If it is not installed on your system, Collada import/export will be disabled.

For the DAE format you can specify the following:

Name Description
Scaling factor All dimensions in the file will be scaled with the specified factor
Mesher Sets the meshing program that should be used. If using Netgen, make sure that it is available. This can be checked by using the Mesh module and creating a mesh using Netgen. If it is not available another version of FreeCAD, compiled with Netgen, must be installed.
Tessellation The tessellation value to use with the Builtin and the Mefisto meshing program.
Grading The grading value to use for meshing using Netgen. This value describes how fast the mesh size decreases. The gradient of the local mesh size h(x) is bound by abs(Δh(x)) ≤ 1/value.
Segments per edge The maximum number of segments per edge
Segments per radius The number of segments per radius
Second order Allow a second order mesh
Optimize Allows optimization
Allow quads Allow quadrilateral faces

DWG

DWG (from drawing) is a proprietary binary file format used for storing two- and three- dimensional design data and metadata. Since it is a closed source file format it cannot be directly supported by FreeCAD. Therefore the external file converter ODA is required.

For the DWG format you can only specify the path to ODA. Note: All settings for DXF file format also apply to DWG.

Name Description
Path to ODA (formerly Teigha) File Converter Sets the path to the ODA file converter

DXF

AutoCAD DXF (Drawing eXchange Format) is a proprietary format to exchange CAD data between AutoCAD and other programs.

For the DXF format you can specify the following:

Name Description
Show this dialog when importing and exporting This preferences dialog will be shown when importing or exporting DXF files
Use legacy python importer If checked, the Python importer is used, otherwise the newer C++ one. The C++ importer is faster, but has not as many features yet.
Use legacy python exporter If checked, the Python exporter is used, otherwise the newer C++ one. The C++ exporter is faster, but has not as many features yet. introduced in version 0.19
Allow FreeCAD to automatically download and update the DXF libraries By checking this, you will allow FreeCAD to download the Python converter for DXF import and export. This converter cannot be bundled with FreeCAD because it has a different software license.
Import Select what will be imported.
If texts and dimensions is unchecked, texts and mtexts won't be imported.

If points is unchecked, points won't be imported.

If layouts is checked, paper space objects will be imported too.
Check *blocks if you want the non-named blocks (beginning with a *) to be imported too.

Create Select what will be created.
If simple Part shapes is selected, only standard Part objects will be created. This is the fastest.

If Draft objects is selected, parametric Draft objects will be created whenever possible.

If Sketches is selected, sketches will be created whenever possible.

Scale factor to apply to imported files Scale factor to apply to DXF files on import. The factor is the conversion between the unit of your DXF file and millimeters. Example: for files in millimeters: 1, in centimeters: 10, in meters: 1000, in inches: 25.4, in feet: 304.8
Get original colors from the DXF file If checked, colors will be retrieved from the DXF objects whenever possible. Otherwise default colors will be applied.
Join geometry If checked, FreeCAD will try to join coincident objects into wires. Note that this can take a while!
Group layers into blocks If checked, objects from the same layers will be joined into Draft Blocks, turning the display faster, but making them less easily editable.
Use standard font size for texts If checked, imported texts will get the standard Draft Text size, instead of the size they have in the DXF document
Use VisGroups If checked, DXF layers will be imported as Draft VisGroups
Import hatch boundaries as wires If checked, hatches will be converted into simple wires
Render polylines with width If checked, if polylines have a width defined, they will be rendered as closed wires with the correct width
Treat ellipses and splines as polylines The export of ellipses and splines is poorly supported. Use this option to export them as polylines instead.

The setting Max Spline Segment is then the maximum length of each of the polyline segments. If it is set to '0' the whole spline is treated as a straight segment.

Export 3D objects as polyface meshes If checked, all objects containing faces will be exported as 3D polyfaces
Export Drawing Views as blocks If this is checked, Drawing Views will be exported as blocks. This might fail for post DXF R12 templates.
Project exported objects along current view direction If checked, the exported objects will be projected to reflect the current view direction

IGES

The Initial Graphics Exchange Specification (IGES) file format is a file format that allows the digital exchange of information among CAD systems. Since the specification for the STEP file format was published, the development of IGES was stopped in 1996. It is nevertheless still supported by many CAD programs.

The tab IGES is only shown in the preferences if you are in the Part or PartDesign Workbench or if you have been in these workbenches before.

For the IGES format you can specify the following:

Name Description
Units for export of IGES Selection what unit will be used when exporting IGES files
Write solids and shells as Selection how solids and shells should be output.

If Groups of Trimmed Surfaces (type 144) is selected, they will be exported as trimmed surface.

If Solids (type 186) and Shells (type 514) / B-REP mode is selected, solids will be exported as manifold solid B-Rep object, shells as shell.

Skip blank entities If checked, blank entities will not be imported
Company If not empty, the entered text will be used in the IGES file header for the company
Author If not empty, the entered text will be used in the IGES file header for the author
Product If not empty, the entered text will be used in the IGES file header for the product

IFC

Industry Foundation Classes (IFC) is a wide spread format to interchange data between BIM applications, used in architecture and engineering.

For the IFC format you can specify the following:

Name Description
Show debug messages Shows verbose debug messages during import and export of IFC files in the Report view panel.
Create clones when objects have shared geometry IFC objects can share a same geometry definition between several objects, only their placement is different. So when this option is enabled, clones are used to achieve the same result in FreeCAD. One object is the base object, the others are clones.
Import arch IFC objects as What will be created in FreeCAD for arch IFC objects
Import struct IFC objects as What will be created in FreeCAD for struct IFC objects
Root element Only subtypes of the specified element will be imported. Keep the predefied element IfcProduct to import all building elements.
Separate openings If checked, openings will be imported as subtractions, otherwise wall shapes will already have their openings subtracted.
Detect extrusions If checked, the importer will try to detect extrusions. Note that this might slow things down.
Split multilayer walls Split walls made of multiple layers
Prefix names with ID number If checked, object names will be prefixed with the IFC ID number.
Merge materials with same name If several materials with the same name are found in the IFC file, they will be treated as one.
Import Ifc Properties in spreadsheet If checked, each object will have their IFC properties stored in a spreadsheet object.
Exclude list A comma-separated list of IFC entities to be excluded from imports
Fit view while importing Fit view during import on the imported objects. This will slow down the import, but one can watch the import.
Import full FreeCAD parametric definitions if available Creates a full parametric model on import using stored FreeCAD object properties.

To get the FreeCAD properties, the model must have been exported using the option Export full FreeCAD parametric model. introduced in version 0.19

Force export as Brep Some IFC viewers don't like objects exported as extrusions. Use this to force all objects to be exported as BREP geometry. However, please notice that this makes the object non-parametric. Avoid exporting as Brep if possible.
Use DAE triangulation options Use triangulation options set in the DAE options page
Join coplanar facets when triangulating Curved shapes that cannot be represented as curves in IFC are decomposed into flat facets. If this is checked, some additional calculation is done to join coplanar facets.
Store IFC universal ID in FreeCAD objects When exporting objects without unique ID (UID), the generated UID will be stored inside the FreeCAD object for reuse next time that object is exported. This leads to smaller differences between file versions.
Use IfcOpenShell serializer if available IFCOpenShell is a library that allows to import IFC files. Its serializer functionality allows to give it an OCC shape and it will produce an adequate IFC geometry: NURBS, faceted, or anything else.
Note that the serializer this is still an experimental feature.
Export 2D objects as IfcAnnotations If checked, 2D objects will be exported as IfcAnnotation
Export full FreeCAD parametric model If checked, all FreeCAD object properties will be stored inside the exported objects, allowing to recreate a full parametric model on reimport using the option Import full FreeCAD parametric definitions if available.
Reuse similar entities If checked, similar entities will be used only once in the file if possible. This can reduce the file size a lot, but will make it less easily readable.
Disable IfcRectangleProfileDef When possible, IFC objects that are extruded rectangles will be exported as IfcRectangleProfileDef. However, some other applications might have problems importing that entity. If this is your case, you can disable this and then all profiles will be exported as IfcArbitraryClosedProfileDef.
Auto-detect and export as standard cases when applicable Some IFC types such as IfcWall or IfcBeam have special standard versions like IfcWallStandardCase or IfcBeamStandardCase. If this option is turned on, FreeCAD will automatically export such objects as standard cases when the necessary conditions are met. introduced in version 0.19
Add default site if one is not found in the document When exporting an IFC file, if no site is found in the FreeCAD document, a default one will be added. A site is not mandatory by the IFC standard, but a common practice to have at least one in the file. introduced in version 0.19
Add default building if one is not found in the document (no standard) When exporting an IFC file, if no building is found in the FreeCAD document, a default one will be added.

Warning: The IFC standard asks for at least one building in each file. By turning this option off, you will produce a non-standard IFC file.

However, at FreeCAD we believe having a building should not be mandatory, and this option is there to have a chance to demonstrate our point of view. introduced in version 0.19

Add default building storey if one is not found in the document When exporting an IFC file, if no building storey is found in the FreeCAD document, a default one will be added. A building storey is not mandatory by the IFC standard, but a common practice to have at least one in the file. introduced in version 0.19

INP

INP is the input file format for the FEM software Abaqus. It is used for the solver CalculiX in the FEM Workbench.

The tab Abaqus INP is only shown in the preferences if you are or if you have been in the FEM Workbench before.

For the INP format you can specify the following:

Name Description
Which mesh elements to export Selection what mesh element parameters should be exported.

If All is selected, all elements will be exported.

If Highest is selected, only the highest elements will be exported. This means for means volumes for a volume mesh and faces for a shell mesh.

If FEM is selected, only FEM elements will be exported. This means only edges not belonging to faces and faces not belonging to volumes.

Export group data If checked, mesh groups are exported too. Every constraint and, if there are different materials, material consists of two mesh groups, faces and nodes where the constraint or material is applied.

Mesh Formats

Meshes are a special type of 3D object, composed of triangular faces connected by their vertices and edges. They are widely used for additive manufacturing. FreeCAD provides the Mesh Workbench to create and handle meshes. FreeCAD supports the file formats AMF and its predecessors STL, OBJ, OFF, PLY and SMF.

The tab Mesh Formats is only shown in the preferences if you are in the Mesh Workbench or if you have been in this workbench before.

For the Mesh formats you can specify the following:

Name Description
Maximum mesh deviation Specification of the maximal deviation between the mesh and the object
Export AMF files using compression If checked, ZIP compression is used when writing a mesh file in AMF format

OCA

The OCA file format is a community project to create a free, simple and open CAD file format. OCA is largely based on the GCAD file format generated by gCAD3D. Both formats can be imported in FreeCAD and the OCA files exported by FreeCAD can be opened in gCAD3D.

For the OCA format you can specify the following:

Name Description
Import OCA areas If checked, the areas (3D faces) will be imported too

STEP

The standard for the exchange of product model data (STEP) file format is an ISO standard for the computer-interpretable representation and exchange of product manufacturing information. STEP is therefore commonly used to exchange 3D data between CAD software. STEP files have the suffix .step or sometimes .stp.

The tab STEP is only shown in the preferences if you are in the Part or PartDesign workbench or if you have been in these workbenches before.
For the STEP format you can specify the following:

Name Description
Units for export of STEP Selection what unit will be used when exporting STEP files
Write out curves in parametric space of surface If checked, parametric curves (curves in parametric space of surface) will be written into the STEP file. Unchecking the option can be helpful to minimize the size of the resulting STEP file.
Scheme Selection what STEP application protocol (AP) will be used for the export.

AP 203 is the protocol for configuration controlled 3D designs of mechanical parts and assemblies.

AP 204 is the protocol for core data for automotive mechanical design processes.

Enable STEP Compound merge If checked, a compound merge will be done during file reading. This is slower but results in higher details.
Company If not empty, the entered text will be used in the STEP file header for the company
Author If not empty, the entered text will be used in the STEP file header for the author
Product If not empty, the entered text will be used in the STEP file header for the product

SVG

Scalable Vector Graphics (SVG) is a vector image format for two-dimensional graphics. The vectors make SVG are very useful for technical drawing programs like FreeCAD's TechDraw Workbench because a vector image can be scaled to any size without losing its shape or amount of details. SVG can be scaled to any required resolution and converted to bitmap formats like PNG or JPEG for printing.

For the SVG format you can specify the following:

Name Description
Import style Selection how SVG object colors and line widths will be imported.

If None (fastest) is selected no color and line width settings will be imported.

If Use default color and linewidth is selected FreeCAD will use its default color and line width.

If Original color and linewidth is selected FreeCAD will use the color and linewidth from the SVG objects.

Disable units scaling If checked, no units conversion will occur. One unit in the SVG file will translate as one millimeter.
Export style Selection how Sketches are exported to SVG.

If Translated (for print & display) is selected, SVG objects are encapsulated in a group that is scaled and moved to the correct place in the SVG document to fit into a printable area.

If Raw (for CAM) is selected, SVG objects are placed as they are - at the same coordinates as in the FreeCAD model (1:1 export).

Translate white line color to black If checked, all white lines will appear in black in the SVG for better readability against white backgrounds
Max segment length for discretized arcs Versions of Open CASCADE older than version 6.8 don't support arc projection. In this case arcs will be discretized into small line segments. This value is the maximum segment length.

VTK

The Visualization Toolkit (VTK) is an open-source, freely available software system for 3D computer graphics, image processing and visualization. VTK files are used by the FEM workbench for the post processing of simulation results.

The tab VTK is only shown in the preferences if you are or if you have been in the FEM Workbench before.

For the VTK format you can specify the following:

Name Description
Which object to import into Selection what objects should be imported.

If VTK result object is selected, a FreeCAD FEM VTK result object will be imported (equals to the object which was exported).

If FEM mesh object is selected, the results in the VTK file will be omitted, only the mesh data will be imported and a FreeCAD FEM mesh object will be created.

If FreeCAD result object is selected, the imported data will be converted into a FreeCAD FEM Result object. Note: this setting needs the exact result component names and thus it only works properly with VTK files exported from FreeCAD.