Source Browser ?

1% language=us runpath=texruns:manuals/luametafun
2
3\environment luametafun-style
4
5\startcomponent luametafun-surface
6
7\startchapter[title={Surface}]
8
9This is work in progress so only some examples are shown here. Yet to be decided
10is how we deal with axis and such.
11
12In \in {figure} [surface:1] we see an example of a plot with axis as well as
13lines drawn.
14
15\startbuffer[1]
16\startMPcode{doublefun}
17    draw lmt_surface [
18        preamble  = "local sin, cos = math.sin, math.cos",
19        code      = "sin(x*x) - cos(y*y)"
20        xmin      = -3,
21        xmax      =  3,
22        ymin      = -3,
23        ymax      =  3,
24        xvector   = { -0.3, -0.3 },
25        height    = 5cm,
26        axis      = { 40mm, 40mm, 30mm },
27        clipaxis  = true,
28        axiscolor = "gray",
29    ] xsized .8TextWidth ;
30\stopMPcode
31\stopbuffer
32
33\typebuffer[1]
34
35\startplacefigure[reference=surface:1]
36    \getbuffer[1]
37\stopplacefigure
38
39In \in {figure} [surface:2] we don't draw the axis and lines. We also use a high
40resolution.
41
42\startbuffer[2]
43\startMPcode{doublefun}
44    draw lmt_surface [
45        preamble  = "local sin, cos = math.sin, math.cos",
46        code      = "sin(x*x) - cos(y*y)"
47        color     = "f, f/2, 1-f"
48        color     = "f, f, 0"
49        xstep     = .02,
50        ystep     = .02,
51        xvector   = { -0.4, -0.4 },
52        height    = 5cm,
53        lines     = false,
54    ] xsized .8TextWidth ;
55\stopMPcode
56\stopbuffer
57
58\typebuffer[2]
59
60\startplacefigure[reference=surface:2]
61    \getbuffer[2]
62\stopplacefigure
63
64The preliminary set of parameters is:
65
66\starttabulate[|T|T|T|p|]
67\FL
68\BC name          \BC type    \BC default                \BC comment \NC \NR
69\ML
70\NC code          \NC string  \NC
71\NC color         \NC string  \NC \type {"f, 0, 0"}      \NC \NC \NR
72\NC linecolor     \NC numeric \NC \type {1}              \NC gray scale \NC \NR
73\NC xmin          \NC numeric \NC \type {-1}             \NC \NC \NR
74\NC xmax          \NC numeric \NC \type { 1}             \NC \NC \NR
75\NC ymin          \NC numeric \NC \type {-1}             \NC \NC \NR
76\NC ymax          \NC numeric \NC \type { 1}             \NC \NC \NR
77\NC xstep         \NC numeric \NC \type {.1}             \NC \NC \NR
78\NC ystep         \NC numeric \NC \type {.1}             \NC \NC \NR
79\NC snap          \NC numeric \NC \type {.01}            \NC \NC \NR
80\NC xvector       \NC list    \NC \type {{ -0.7, -0.7 }} \NC \NC \NR
81\NC yvector       \NC list    \NC \type {{ 1, 0 }}       \NC \NC \NR
82\NC zvector       \NC list    \NC \type {{ 0, 1 }}       \NC \NC \NR
83\NC light         \NC list    \NC \type {{ 3, 3, 10 }}   \NC \NC \NR
84\NC bright        \NC numeric \NC \type {100}            \NC \NC \NR
85\NC clip          \NC boolean \NC \type {false}          \NC \NC \NR
86\NC lines         \NC boolean \NC \type {true}           \NC \NC \NR
87\NC axis          \NC list    \NC \type {{ }}            \NC \NC \NR
88\NC clipaxis      \NC boolean \NC \type {false}          \NC \NC \NR
89\NC axiscolor     \NC string  \NC \type {"gray"}         \NC \NC \NR
90\NC axislinewidth \NC numeric \NC \type {1/2}            \NC \NC \NR
91\LL
92\stoptabulate
93
94\stopchapter
95
96\stopcomponent
97