| 1 | #!/bin/sh
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| 2 |
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| 3 | nawk '
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| 4 |
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| 5 | BEGIN {
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| 6 | xmarksize = ymarksize = .3
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| 7 | marktype = "circle"
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| 8 | vfont = "Times-Roman"
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| 9 | vfontsize = 8
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| 10 | efont = "Times-Roman"
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| 11 | efontsize = 8
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| 12 | fill = 1.
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| 13 | xs = ys = 1.
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| 14 | xmin = ymin = 999999.
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| 15 | xmax = ymax = -999999.
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| 16 | n = 0
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| 17 | m = 0
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| 18 | mode = 0
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| 19 | NOLABEL = "_NOLABEL"
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| 20 | pi = 3.141593
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| 21 | deg90 = pi / 2.
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| 22 | elabdist = .1
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| 23 | vlab = elab = 1
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| 24 | larrows = rarrows = 0
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| 25 | }
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| 26 |
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| 27 | NF == 0 || substr($1, 1, 1) == "#" { next }
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| 28 |
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| 29 | $1 == "xmarksize" { xmarksize = $2 ; next }
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| 30 | $1 == "ymarksize" { ymarksize = $2 ; next }
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| 31 | $1 == "marksize" { xmarksize = ymarksize = $2 ; next }
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| 32 | $1 == "marktype" { marktype = $2 ; next }
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| 33 | $1 == "vfont" { vfont = $2 ; next }
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| 34 | $1 == "vfontsize" { vfontsize = $2 ; next }
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| 35 | $1 == "efont" { efont = $2 ; next }
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| 36 | $1 == "efontsize" { efontsize = $2 ; next }
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| 37 | $1 == "font" { vfont = efont = $2 ; next }
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| 38 | $1 == "fontsize" { vfontsize = efontsize = $2 ; next }
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| 39 | $1 == "fill" { fill = $2 ; next }
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| 40 | $1 == "xs" { xs = $2 ; next }
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| 41 | $1 == "ys" { ys = $2 ; next }
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| 42 | $1 == "scale" { xs = ys = $2 ; next }
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| 43 | $1 == "elabdist" { elabdist = $2 ; next }
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| 44 | $1 == "vlab" { vlab = $2 ; next }
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| 45 | $1 == "elab" { elab = $2 ; next }
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| 46 | $1 == "lab" { vlab = elab = $2 ; next }
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| 47 | $1 == "larrows" { larrows = $2 ; next }
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| 48 | $1 == "rarrows" { rarrows = $2 ; next }
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| 49 | $1 == "arrows" { larrows = rarrows = $2 ; next }
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| 50 |
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| 51 | $1 == "edges" {
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| 52 | mode = 1
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| 53 | printf "newgraph\n"
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| 54 | printf "xaxis min %f max %f size %f nodraw\n", xmin, xmax, (xmax - xmin) * xs
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| 55 | printf "yaxis min %f max %f size %f nodraw\n\n", ymin, ymax, (ymax - ymin) * ys
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| 56 | next
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| 57 | }
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| 58 |
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| 59 | $1 == "raw" { mode = 2 ; next }
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| 60 |
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| 61 | {
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| 62 | if (!mode) {
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| 63 | x[n] = $1
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| 64 | y[n] = $2
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| 65 | vlabel[n] = (NF == 3 ? $3 : n)
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| 66 | if (x[n] < xmin) xmin = x[n]
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| 67 | else if (x[n] > xmax) xmax = x[n]
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| 68 | if (y[n] < ymin) ymin = y[n]
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| 69 | else if (y[n] > ymax) ymax = y[n]
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| 70 | n++
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| 71 | }
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| 72 | else if (mode == 1) {
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| 73 | src[m] = label_to_node($1)
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| 74 | dst[m] = label_to_node($2)
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| 75 | elabel[m] = (NF == 3 ? $3 : NOLABEL)
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| 76 | m++
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| 77 | }
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| 78 | else
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| 79 | print $0
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| 80 | }
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| 81 |
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| 82 | END {
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| 83 | printf "\n"
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| 84 | for (i = 0; i < n; i++) {
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| 85 | printf "newline marktype %s marksize %f %f fill %f pts %f %f\n", marktype, xmarksize, ymarksize, fill, x[i], y[i]
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| 86 | if (vlab)
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| 87 | printf "newstring x %f y %f vjc hjc font %s fontsize %d : %s\n", x[i], y[i], vfont, vfontsize, vlabel[i]
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| 88 | }
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| 89 | printf "\n"
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| 90 | for (i = 0; i < m; i++) {
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| 91 | printf "newline marktype %s marksize %f %f fill %f pts %f %f %f %f ", marktype, xmarksize, ymarksize, fill, x[src[i]], y[src[i]], x[dst[i]], y[dst[i]]
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| 92 | if (larrows) printf "larrows "
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| 93 | if (rarrows) printf "rarrows "
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| 94 | printf "\n"
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| 95 | if (elab && elabel[i] != NOLABEL) {
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| 96 | midx = (x[src[i]] + x[dst[i]]) / 2.
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| 97 | midy = (y[src[i]] + y[dst[i]]) / 2.
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| 98 | ang = atan2(y[dst[i]] - y[src[i]], x[dst[i]] - x[src[i]])
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| 99 | nang = ang - deg90
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| 100 | px = midx + elabdist * cos(nang)
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| 101 | py = midy + elabdist * sin(nang)
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| 102 | rot = ang * 180. / pi
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| 103 | rot = (rot < 0. ? rot + 360. : rot)
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| 104 | rot = (rot >= 90. && rot <= 270. ? rot + 180. : rot);
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| 105 | printf "newstring x %f y %f vjc hjc rotate %f font %s fontsize %d : %s\n", px, py, rot, efont, efontsize, elabel[i]
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| 106 | }
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| 107 | }
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| 108 | }
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| 109 |
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| 110 | function label_to_node(label) {
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| 111 | for (i = 0; i < n; i++)
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| 112 | if (vlabel[i] == label)
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| 113 | return(i)
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| 114 | return(-1)
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| 115 | }
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| 116 |
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| 117 | '
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