Most editions of TPC can read a DXF file and strip the coordinates out of the file.
TPC reads points, lines, polylines, etc. from the DXF file, creating coordinate points out of them. Press [F1] in the DXF Settings dialog box to get a complete list of supported entities.
To get good results from an imported DXF file, you may need to adjust the tolerance setting in the DXF Settings dialog. This setting tells TPC how far apart two entities must be before they are considered to be separate entities. This is important because of the way points and lines are created in CAD.
If you create a position in CAD by snapping to the end of a line, the CAD program uses the exact coordinates of the end of the line for the position. However, if you choose instead to position the cursor at the end of the line and create the position with a mouse click, the position you create will not be exactly at the end of the line. It might be very close and even look like the drawing fits, but it will not be exact. This is why the tolerance setting is important. It tells TPC how close two entities must be in order to be considered the same entity, allowing you some margin of error as you create your drawing in CAD.
In addition to importing coordinates from a DXF file, the Professional Edition of TPC Desktop can also import the entire DXF file as a drawing.
Using DXF
Using DWG
Exporting DXF Files
Importing DXF Drawings
Layers
Working with Drawing Objects
Converting Drawing Objects to Survey Points
Personal, Premium, Professional