Add HPGL plotter backend for Qt4

improved hpgl parser : plot strings

fixes

added a (very) beginning HPGL parser (with a simplist matplotlib backend)

docstrings added

Several improvements (code refactoring) + add stuff to decode binary coordinate data block ("DCBN" command)

make header_formatter a little bit smarter (interpret bool values when it can)

(0) -10 -7 +7 +10 +30 tip

mercurial