DXF
General
DXF (Drawing Interchange Format) is a data exchange format between different CAD programs of Autodesk Inc. Open it in menu File / Input/Output Formats / File transfer/Documentation / ...
TARGET 3001! saves all details of your schematic and PCB with an internal data structure. The DXF format gives the possibility to make those data being viewed and handled by other CAD programs.
DXF is defined that way that even complicated matters of any programs in any programming language can be generated. The program needs to fulfill two conditions:
- It must be able to read an ASCII-file
- It must be able to load and process numbers as pairs out of this file
Unfortunately the data transfer with DXF is problematic. This refers to the different qualities of different DXF converters:
- There is no DXF standard. The format has developed organically and still is developing.
- As far as we know DXF is not sufficiently described.
- Autodesk themselves offer the following specifications: http://usa.autodesk.com/adsk/servlet/item?siteID=123112&id=8446698
If you know other useful DXF documentation we would be happy if you would let us know. - Nevertheless the format is not unitary. The DXF-Import in many other programs does not use the AutoCAD-reference. Some headers often interdict an import.
- All coordinate- and length values of a DXF file are not showing units.
- The measurement system of a drawing (Millimeter, Inch, ...) is not part of the drawing information itself.
- DXF is suitable very good for the definition of lines but suitable very bad for the definition of filled shapes.
In order to export to DXF please use in AutoCAD or any other CAD construction software package the commands Explode esp. Origin. This will make the image "flat" so that TARGET can read it.
Import a DXF-File
Maybe you wish to import parts of the schematic or parts of the layout from a DXF file to TARGET.
- Open TARGET 3001! and choose the schematic view if you want to import a DXF-file as part of a schematic.
- Open TARGET 3001! and choose the PCB view if you want to import a DXF-file as part of a PCB layout.
Now choose in TARGET 3001! main menu File / Input/Output-Formats / File transfer/Documentation / "DXF Import".
Now from the Windows file browser select the *.dxf file you wish to import. Click "Open".
Image: The dialog: "Import DXF file"
In this dialog please do the scaling settings. Define the layer to which you like to import your file. Sometimes you are insecure in respect to the dimensioning of the DXF file to come. Which scaling factor is correct?
Using this button, you can 
Maybe you know the diameter of a drilling or the length of a certain line of the drawing which you like to import. Now you hover the mouse to a point in question and click the mouse. Do the same with the second point of the object.
In the opening dialog enter the absolute value for the length of the distance highlighted e. g. 85 mm. Now press "Start" in order to activate the import process. TARGET knows now how to interpret the dimensions of the DXF file, in order to display it correctly.
Export of a DXF-file
Save your project in "TARGET 3001!". Open the DXF driver in TARGET 3001! menu File / Input/Output Formats / File transfer/Documentations / DXF Output. What you get is:
Choose the destination of the dxf-file to be generated by the button 
Now select from the registers for several alternatives.
Choose the desired parameters. If you are unsure e. g. in the Options register, please leave the boxes unticked (default settings re used).
Click on Schematic or PCB and choose the desired page respectively layer.
Enter a file name and export your file in DXF format by pressing "Output".
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