For these reasons many CAD applications use the DWG format which can be licensed from Autodesk or non-natively from the Open Design Alliance.ĭXF coordinates are always without dimensions so that the reader or user needs to know the drawing unit or has to extract it from the textual comments in the sheets.ĪSCII versions of DXF can be read with any text editor. Other object types, including AutoCAD 2006's dynamic blocks, and all of the objects specific to the vertical market versions of AutoCAD, are partially documented, but not well enough to allow other developers to support them. Certain object types, including ACIS solids and regions, are not documented. Earlier versions support only ASCII.Īs AutoCAD has become more powerful, supporting more complex object types, DXF has become less useful. Versions of AutoCAD from Release 10 (October 1988) and up support both ASCII and binary forms of DXF. Autodesk now publishes the DXF specifications online. For many years Autodesk did not publish specifications making correct imports of DXF files difficult. The program automatically attaches the resulting PMP file to the plotter configuration (PC3) file that you used to perform the calibration test.(January 2007 14 years ago ( 2007-01) )ĪutoCAD DXF (Drawing Interchange Format, or Drawing Exchange Format) is a CAD data file format developed by Autodesk for enabling data interoperability between AutoCAD and other programs.ĭXF was originally introduced in December 1982 as part of AutoCAD 1.0, and was intended to provide an exact representation of the data in the AutoCAD native file format, DWG (Drawing). When you finish the Calibrate Plotter wizard, a plotter model parameter (PMP) file is created to store the results of the calibration for the plotter. The program then scales the output based on the entered calibration values for the plotter to correct errors in its hardware scaling. entering the actual measurements of the printed output in the Calibrate Plotter wizard.measuring the printed dimensions of the test rectangle, and.specifying the dimensions of a test rectangle,.If your plotter provides a calibration utility, use that utility instead of the AutoCAD-based product's calibration utility so the calibration is available for all applications using the plotter. If you need to correct scaling discrepancies, you can adjust the plotter calibration. If your plotter meets the manufacturer's specifications for accuracy of scale, a 10-inch line in a drawing plotted at a scale of 1:1 should be exactly 10 inches long on paper. Plotter calibration is an optional process.

Autocad viewer calibration