This is the window that comes up to select the file to importand the lets the user set  the import parameters.  Imports two orthree axes DXF files, displayed as either 2D or 3D.

    The XYZ Scale value is a real number input, that is used as amultiplication factor on the coordinates and parameters imported in the DXFfile.  This number is an effective scaling factor for changing the size ofthe objects imported.  When the value is at it's default the drawing isimported at one to one.  If the value is 0.5 the drawing will be importedat half size.  If the value is at 2.0 the drawing will be imported at twicethe size.

    The Z Scale value is a real number input, that is used as amultiplication factor on the Z coordinates imported with the DXF file after the XYZScale variable has been applied.  Ifthe value is 0.5 the drawing Z coordinates will be imported at half the size. If the value is at 2.0 the drawing Z coordinates will be imported at twice thesize.  A negative one value will reverse the surface contour.  Bychanging this value, progressively deeper cuts can be made.

    The Mode button sets the import mode.  It can be2D XY or 3D XYZ.  If it is in 2D XY mode the items can beedited, copied, moved and erased. 

    The Swap button  can be used to swaptwo of the three axes' coordinatesaround.  This changes the axis the drawing will be imported to.  Thefour conditions are 'None', 'X&Y', 'X&Z' and 'Y&Z'.

    The Hidden button  controls if hidden lines will bedisplayed.  A 3D point of view determines the hidden condition.  Thethree conditions are 'Yes', 'No' and 'Only'.

    The Arc's button controls whether arcs and circles will beconverted to poly lines or not.  This button controls how SuperCam deals withthe arcs and circles found in the file.  When the Button is in the 'OFF' position,arcsand circles are converted to multi segmented lines in SuperCam, this way apolyline created in AutoCad can be directly converted to a lineup orlinedwn in SuperCam.  When in the 'ON' condition the arcs and circles are imported as they are.