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|
open Mlpost
open Point
open Path
open Command
open Dash
(*parse <<togglescript>> *)
let l = [ (0., 0.); (1., 0.); (0., 1.) ]
(*parse <<paths1 *)
let paths1 = draw (path ~style:jLine ~scale:Num.cm l)
(*parse >> <<paths2 *)
let paths2 = draw (path ~style:jLine ~scale:Num.cm ~cycle:jLine l)
(*parse >> <<paths3 *)
let paths3 =
let a = (-1., -1.) in
let b = (1., -1.) in
let c = (1., 1.) in
let d = (-1., 1.) in
seq
[
draw (path ~style:jLine ~scale:Num.cm ~cycle:jLine [ a; b; c; d ]);
draw (path ~scale:Num.cm [ a; c ]);
draw (path ~scale:Num.cm [ b; d ]);
]
(*parse >> <<paths4 *)
let paths4 = draw ~pen:(Pen.scale (Num.bp 4.) Pen.circle) (path [ (0., 0.) ])
(*parse >> <<paths5 *)
let paths5 =
let a = (0., 0.) in
let b = (1., 0.) in
let c = (0., 1.) in
let pen = Pen.scale (Num.bp 4.) Pen.circle in
seq
[
draw (path ~style:jLine ~scale:Num.cm ~cycle:jLine [ a; b; c ]);
seq (List.map (fun a -> draw ~pen (path ~scale:Num.cm [ a ])) [ a; b; c ]);
]
(*parse >> *)
let a = cmp (0., 0.)
let b = cmp (1., 0.)
let c = cmp (0., 1.)
(*html <hr /> *)
(*parse <<paths6 *)
let paths6 =
seq
[
draw (pathp ~style:jLine ~cycle:jLine [ a; b; c ]);
draw (pathp [ segment 0.5 a b; c ]);
draw (pathp [ segment 0.5 b c; a ]);
draw (pathp [ segment 0.5 c a; b ]);
]
(*parse >> <<paths7 *)
let paths7 =
seq
[
draw (pathp ~style:jLine [ b; c; a ]);
draw (pathp ~style:jLine [ a; b ]) ~color:Color.yellow;
]
(*parse >> <<paths8 *)
let paths8 =
seq
[
draw (pathp [ a; b ]);
draw ~dashed:evenly (pathp [ b; c ]);
draw ~dashed:withdots (pathp [ c; a ]);
]
(*parse >> <<paths9 *)
let paths9 =
let pen = Pen.scale (Num.bp 2.) Pen.circle in
let cl = List.map Color.gray [ 0.8; 0.6; 0.4 ] in
seq
(List.map2
(fun (a, b) color -> draw ~pen ~color (pathp ~style:jLine [ a; b ]))
[ (a, b); (b, c); (c, a) ] cl)
(*parse >> <<paths10 *)
let paths10 =
seq
[
draw ~dashed:(scaled 2. evenly)
(path ~scale:Num.cm [ (0., 0.); (3., 0.) ]);
draw ~dashed:evenly (path ~scale:Num.mm [ (0., -5.); (30., -5.) ]);
]
(*parse >> <<paths11 *)
let paths11 =
draw
~dashed:(pattern [ on (Num.bp 2.); off (Num.bp 3.) ])
(path ~scale:Num.cm [ (0., 0.); (3., 0.) ])
(*parse >> *)
let triangle = path ~scale:Num.cm ~style:jLine ~cycle:jLine l
(*html <hr/> *)
(*parse <<paths12 *)
let paths12 = fill ~color:(Color.gray 0.8) triangle
(*parse >> <<paths13 *)
let paths13 = seq [ fill ~color:(Color.gray 0.8) triangle; draw triangle ]
(*parse >> *)
let pen = Pen.scale (Num.bp 2.) Pen.circle
(*html <hr/> *)
(*parse <<paths14 *)
let paths14 = seq [ fill ~color:(Color.gray 0.8) triangle; draw ~pen triangle ]
(*parse >> <<paths15 *)
let paths15 = seq [ draw ~pen triangle; fill ~color:(Color.gray 0.8) triangle ]
(*parse >> <<paths16 *)
let paths16 =
let p =
path ~cycle:jCurve [ (0., 0.); (30., 40.); (40., -20.); (10., 20.) ]
in
let pen = Pen.scale (Num.bp 1.5) Pen.circle in
seq
[
draw p;
seq
(List.map
(fun (pos, l, i) -> dotlabel ~pos (Picture.tex l) (Path.point i p))
[
(`Bot, "0", 0.);
(`Upleft, "1", 1.);
(`Lowleft, "2", 2.);
(`Top, "3", 3.);
(`Left, "4", 4.);
]);
draw ~pen (subpath 1.3 3.2 p);
]
(*parse >> <<paths17 *)
let z0 = cmp (0., 0.)
let z1 = cmp (4., 1.)
let cercle = Path.shift z0 (Path.scale (Num.cm 1.) fullcircle)
let rectangle =
Path.shift z1
(path ~style:jLine ~cycle:jLine ~scale:Num.mm
[ (-5., -5.); (5., -5.); (5., 5.); (-5., 5.) ])
let p =
pathk
(knotlist [ (noDir, z0, vec (dir 150.)); (noDir, z1, vec (dir (-30.))) ])
let paths17 =
seq
[
draw cercle;
draw rectangle ~dashed:evenly;
draw p ~dashed:(Dash.scaled 0.3 withdots);
Arrow.draw (cut_before cercle (cut_after rectangle p));
]
(*parse >> *)
let _ =
List.iter
(fun (name, fig) -> Metapost.emit name (Picture.scale (Num.bp 3.) fig))
[
("paths1", paths1);
("paths2", paths2);
("paths3", paths3);
("paths4", paths4);
("paths5", paths5);
("paths6", paths6);
("paths7", paths7);
("paths8", paths8);
("paths9", paths9);
("paths10", paths10);
("paths11", paths11);
("paths12", paths12);
("paths13", paths13);
("paths14", paths14);
("paths15", paths15);
("paths16", paths16);
("paths17", paths17);
]
|
