TODO :

- Process rotation angles in insertion blocks (currently incomplete)
- Implement solids as filled polygon instead of closed polylines
- Implement splines as well for plot program (done for xfig)

DONE :

Jan 10, 2004:
x Add support for DIMENSION measures and angles

Jan 09, 2004:
x Implement vertical text justification flags
x Horizontal text justification flags implemented
x Filter special instructions (starting with '\') from text to avoid
  possible invalid text in xfig

Dec 12, 2003 :
x Pagesize option (A0 .. A4)

Dec 6, 2003 :
x Implement layer cache and hold color + linetype (for BYLAYER flags)
x Keep blocks in fig file: now written as compound
x Give each layer it's own depth in xfig

Dec 3, 2003 :
x Write output to xfig file
x Implement colors
x Implement linewidth

Nov 30, 2003 :
x Make a single dxfplot routine to process polylines of both types

Nov 29, 2003 :
x Move graphics out of dopline and dolwpline : fill array of points instead
x Reshape structures : parser data, plotoutput data and blockinfo
x Use the block structure for insertion blocks as well