summaryrefslogtreecommitdiff
path: root/Master/texmf-dist/dvips/pstricks/pst-slpe.pro
blob: 552e63f10aa7d215e3d0d14e19ff1d5f9f0be3c8 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
%%
%% This is file `pst-slpe.pro',
%% generated with the docstrip utility.
%%
%% The original source files were:
%%
%% pst-slpe.dtx  (with options: `prolog')
%% 
%% IMPORTANT NOTICE:
%% 
%% For the copyright see the source file.
%% 
%% You are *not* allowed to modify this file.
%% 
%% You are *not* allowed to distribute this file.
%% For distribution of the original source see the terms
%% for copying and modification in the file pst-slpe.dtx.
%% 
/tx@PstSlopeDict 60 dict def tx@PstSlopeDict begin
/max {2 copy lt {exch} if pop} bind def
/Iterate {
  1 sub /NumSegs ED
  dup mul 3 1 roll dup mul 3 1 roll dup mul 3 1 roll
  setrgbcolor currenthsbcolor
  /ThisB ED
  /ThisS ED
  /ThisH ED
  /ThisPt ED
  gsave fill grestore
  NumSegs {
    dup mul 3 1 roll dup mul 3 1 roll dup mul 3 1 roll
    setrgbcolor currenthsbcolor
    /NextB ED
    /NextS ED
    /NextH ED
    /NextPt ED
    ThisPt NextPt sub ThisPt div NumSteps mul cvi /SegSteps exch def
    /NumSteps NumSteps SegSteps sub def
    SegSteps 0 eq not {
      ThisS 0 eq {/ThisH NextH def} if
      NextS 0 eq {/NextH ThisH def} if
      ThisH NextH sub 0.5 gt
        {/NextH NextH 1.0 add def}
        { NextH ThisH sub 0.5 ge {/ThisH ThisH 1.0 add def} if }
      ifelse
      /B ThisB def
      /S ThisS def
      /H ThisH def
      /BInc NextB ThisB sub SegSteps div def
      /SInc NextS ThisS sub SegSteps div def
      /HInc NextH ThisH sub SegSteps div def
      SegSteps {
        H dup 1. gt {1. sub} if S B sethsbcolor
        currentrgbcolor
        sqrt 3 1 roll sqrt 3 1 roll sqrt 3 1 roll
        setrgbcolor
        DrawStep
        /H H HInc add def
        /S S SInc add def
        /B B BInc add def
      } bind repeat
      /ThisH NextH def
      /ThisS NextS def
      /ThisB NextB def
      /ThisPt NextPt def
    } if
  } bind repeat
} def
/PatchRadius {
  Radius 0 eq {
    /UpdRR { dup mul exch dup mul add RR max /RR ED } bind def
    gsave
    flattenpath
    /RR 0 def
    {UpdRR} {UpdRR} {} {} pathforall
    grestore
    /Radius RR sqrt def
  } if
} def
/SlopesFill {
  gsave
  180 add rotate
  /NumSteps ED
  clip
  pathbbox
  /h ED /w ED
  2 copy translate
  h sub neg /h ED
  w sub neg /w ED
  /XInc w NumSteps div def
  /DrawStep {
    0 0 XInc h rectfill
    XInc 0 translate
  } bind def
  Iterate
  grestore
} def
/CcSlopesFill {
  gsave
  /Radius ED
  /CenterY ED
  /CenterX ED
  /NumSteps ED
  clip
  pathbbox
  /h ED /w ED
  2 copy translate
  h sub neg /h ED
  w sub neg /w ED
  w CenterX mul h CenterY mul translate
  PatchRadius
  /RadPerStep Radius NumSteps div neg def
  /Rad Radius def
  /DrawStep {
    0 0 Rad 0 360 arc
    closepath fill
    /Rad Rad RadPerStep add def
  } bind def
  Iterate
  grestore
} def
/RadSlopesFill {
  gsave
  rotate
  /Radius ED
  /CenterY ED
  /CenterX ED
  /NumSteps ED
  clip
  pathbbox
  /h ED /w ED
  2 copy translate
  h sub neg /h ED
  w sub neg /w ED
  w CenterX mul h CenterY mul translate
  PatchRadius
  /AngleIncrement 360 NumSteps div neg def
  /dY AngleIncrement sin AngleIncrement cos div Radius mul def
  /DrawStep {
    0 0 moveto
    Radius 0 rlineto
    0 dY rlineto
    closepath fill
    AngleIncrement rotate
  } bind def
  Iterate
  grestore
} def
end