[AGG] path orientation, image composition

[Robin B. <ro...@re...>]

Hi, hope this is the right place to post concerning paths.

I am thinking of using agg to replace libart_lgpl in reportlab's pix map 
renderer. Libart has even less documentation than agg, but I sort of understand 
what's going on.

I think I can base my renderer on agg, but would like some assistance with 
various harder issues which don't seem to be addressed in aggdraw etc.

1) I need to draw stroked and filled paths. My particular problem with libart is 
that it's hard to control the filling. Can agg do the equivalent of even-odd and 
non-zero filling rules? I noticed these in agg_basics.h

     enum path_flags_e
     {
         path_flags_none  = 0,         //----path_flags_none
         path_flags_ccw   = 0x10,      //----path_flags_ccw
         path_flags_cw    = 0x20,      //----path_flags_cw
         path_flags_close = 0x40,      //----path_flags_close
         path_flags_mask  = 0xF0       //----path_flags_mask
     };

and I see that there are functions related to orientation changing. I assume it 
must be possible to do fills like svg so what do these flags mean?

2) Can agg compose images say from pix buffers?
-- 
Robin Becker