diff options
Diffstat (limited to 'metapost/context/base/mpii/mp-back.mpii')
| -rw-r--r-- | metapost/context/base/mpii/mp-back.mpii | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/metapost/context/base/mpii/mp-back.mpii b/metapost/context/base/mpii/mp-back.mpii new file mode 100644 index 000000000..f588adea9 --- /dev/null +++ b/metapost/context/base/mpii/mp-back.mpii @@ -0,0 +1,205 @@ +%D \module +%D [ file=mp-back.mp, +%D version=2000.05.31, +%D title=\CONTEXT\ \METAPOST\ graphics, +%D subtitle=backgrounds, +%D author=Hans Hagen, +%D date=\currentdate, +%D copyright={PRAGMA / Hans Hagen \& Ton Otten}] +%C +%C This module is part of the \CONTEXT\ macro||package and is +%C therefore copyrighted by \PRAGMA. See licen-en.pdf for +%C details. + +if known context_back : endinput ; fi ; + +boolean context_back ; context_back := true ; + +def some_hash ( expr hash_width , + hash_height , + hash_linewidth , + hash_linecolor , + hash_angle , + hash_gap ) = + + stripe_gap := hash_gap ; + stripe_angle := hash_angle ; + drawoptions (withpen pencircle scaled hash_linewidth + withcolor hash_linecolor) ; + path p ; p := unitsquare xscaled hash_width yscaled hash_height ; + stripe_path_a () (draw) p ; % next we move it all to quadrant 1 + currentpicture := currentpicture shifted urcorner currentpicture ; + +enddef ; + +def some_double_back (expr back_type , + back_width , + back_height , + back_delta , + back_linewidth , + back_linecolor , + back_fillcolor , + back_topcolor , + back_bottomcolor , + back_leftcolor , + back_rightcolor ) = + + numeric ww ; ww := back_width ; + numeric hh ; hh := back_height ; + numeric dd ; dd := back_delta ; + + color back_nillcolor ; back_nillcolor := back_topcolor ; + + path p ; p := fullsquare xscaled ww yscaled hh ; + path q ; q := fullsquare xscaled (ww-2dd) yscaled (hh-2dd) ; + path r ; r := llcorner p -- + lrcorner p shifted (-3dd,0) .. controls lrcorner p .. + lrcorner p shifted (0, 3dd) -- + urcorner p shifted (0,-3dd) .. controls urcorner p .. + urcorner p shifted (-3dd,0) -- + ulcorner p -- cycle ; + path s ; s := r xscaled ((ww-2dd)/ww) yscaled ((hh-2dd)/hh) ; + path t ; t := llcorner p -- + lrcorner p -- + urcorner p shifted (0,-3dd) .. controls urcorner p .. + urcorner p shifted (-3dd,0) -- + ulcorner p shifted ( 3dd,0) .. controls ulcorner p .. + ulcorner p shifted (0,-3dd) -- + llcorner p -- cycle ; + path u ; u := t xscaled ((ww-2dd)/ww) yscaled ((hh-2dd)/hh) ; + path v ; v := llcorner p shifted ( 3dd,0) -- + lrcorner p shifted (-3dd,0) .. controls lrcorner p .. + lrcorner p shifted (0, 3dd) -- + urcorner p shifted (0,-3dd) .. controls urcorner p .. + urcorner p shifted (-3dd,0) -- + ulcorner p shifted ( 3dd,0) .. controls ulcorner p .. + ulcorner p shifted (0,-3dd) .. + llcorner p shifted (0, 3dd) .. controls llcorner p .. cycle ; % {down} .. cycle ; + path w ; w := t xscaled ((ww-2dd)/ww) yscaled ((hh-2dd)/hh) ; + path a ; a := llcorner p -- ulcorner p -- + ulcorner q -- llcorner q -- cycle ; + path b ; b := llcorner p -- lrcorner p -- + lrcorner q -- llcorner q -- cycle ; + path c ; c := lrcorner p -- urcorner p -- + urcorner q -- lrcorner q -- cycle ; + path d ; d := ulcorner p -- urcorner p -- + urcorner q -- ulcorner q -- cycle ; + path e ; e := llcorner p -- lrcorner p -- + urcorner p -- urcorner q -- + lrcorner q -- llcorner q -- cycle ; + path f ; f := llcorner p -- ulcorner p -- + urcorner p -- urcorner q -- + ulcorner q -- llcorner q -- cycle ; + + linecap := butt ; pickup pencircle scaled back_linewidth ; + + if back_type=1 : + + fill p withcolor back_fillcolor ; + fill a withcolor back_leftcolor ; + fill b withcolor back_bottomcolor ; + fill c withcolor back_rightcolor ; + fill d withcolor back_topcolor ; + draw a withcolor back_linecolor ; + draw d withcolor back_linecolor ; + draw b withcolor back_linecolor ; + draw c withcolor back_linecolor ; + + elseif back_type=2 : + + fill p withcolor back_fillcolor ; + fill e withcolor back_bottomcolor ; + fill f withcolor back_topcolor ; + draw e withcolor back_linecolor ; + draw f withcolor back_linecolor ; + + elseif back_type=3 : + + fill v withcolor back_nillcolor ; + fill w withcolor back_fillcolor ; + draw v withcolor back_linecolor ; + draw w withcolor back_linecolor ; + + elseif back_type=4 : + + fill t withcolor back_nillcolor ; + fill u withcolor back_fillcolor ; + draw t withcolor back_linecolor ; + draw u withcolor back_linecolor ; + + elseif back_type=5 : + + t := t rotatedaround(center t,180) ; + u := u rotatedaround(center u,180) ; + + fill t withcolor back_nillcolor ; + fill u withcolor back_fillcolor ; + draw t withcolor back_linecolor ; + draw u withcolor back_linecolor ; + + elseif back_type=6 : + + r := r rotatedaround(center r,180) ; + s := s rotatedaround(center s,180) ; + + fill r withcolor back_nillcolor ; + fill s withcolor back_fillcolor ; + draw r withcolor back_linecolor ; + draw s withcolor back_linecolor ; + + elseif back_type=7 : + + fill r withcolor back_nillcolor ; + fill s withcolor back_fillcolor ; + draw r withcolor back_linecolor ; + draw s withcolor back_linecolor ; + +fi ; + +enddef ; + +endinput ; + +beginfig (1) ; + +some_double_back (1, 4.5cm, 1.5cm, .25cm, 1mm, + .5white, .8white, .7white, .6white, .7white, .6white) + +currentpicture := currentpicture shifted (0,-3cm) ; + +some_double_back (2, 4.5cm, 1.5cm, .25cm, 1mm, + .5white, .8white, .7white, .6white, white, white) + +currentpicture := currentpicture shifted (0,-3cm) ; + +some_double_back (3, 4.5cm, 1.5cm, .25cm, 1mm, + .5white, .8white, .7white, white, white, white) + +currentpicture := currentpicture shifted (0,-3cm) ; + +some_double_back (4, 4.5cm, 1.5cm, .25cm, 1mm, + .5white, .8white, .7white, white, white, white) + +currentpicture := currentpicture shifted (0,-3cm) ; + +some_double_back (5, 4.5cm, 1.5cm, .25cm, 1mm, + .5white, .8white, .7white, white, white, white) + +currentpicture := currentpicture shifted (0,-3cm) ; + +some_double_back (6, 4.5cm, 1.5cm, .25cm, 1mm, + .5white, .8white, .7white, white, white, white) + +currentpicture := currentpicture shifted (0,-3cm) ; + +some_double_back (7, 4.5cm, 1.5cm, .25cm, 1mm, + .5white, .8white, .7white, white, white, white) + +currentpicture := currentpicture shifted (0,-3cm) ; + +some_double_back (8, 4.5cm, 1.5cm, .25cm, 1mm, + .5white, .8white, .7white, white, white, white) + +endfig ; + +end . |