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Current Path: /usr/share/graphviz/gvpr

📁 ..
📄 addedges(291 B)
📄 addranks(830 B)
📄 addrings(1.29 KB)
📄 anon(422 B)
📄 attr(151 B)
📄 bb(997 B)
📄 bbox(532 B)
📄 binduce(1.14 KB)
📄 bipart(455 B)
📄 chkclusters(532 B)
📄 chkedges(916 B)
📄 cliptree(178 B)
📄 col(601 B)
📄 collapse(469 B)
📄 color(1.41 KB)
📄 cycle(560 B)
📄 dechain(264 B)
📄 deghist(351 B)
📄 deledges(116 B)
📄 delmulti(397 B)
📄 delnodes(249 B)
📄 depath(547 B)
📄 dijkstra(647 B)
📄 flatten(88 B)
📄 get-layers-list(277 B)
📄 group(791 B)
📄 histogram(319 B)
📄 indent(378 B)
📄 knbhd(1.2 KB)
📄 maxdeg(307 B)
📄 path(449 B)
📄 rotate(1.17 KB)
📄 scale(1.12 KB)
📄 scalexy(1.1 KB)
📄 span(139 B)
📄 topon(429 B)
📄 treetoclust(988 B)

Editing: rotate

/* Given node name and angle, rotate a layout using the given
 * node as origin.
 */

BEGIN {
  double x,y;
  double x0,y0;
  double x1,y1;
  double angle, cosa, sina;
  int cnt, sz;

void rotate (double a, double b) {
    a -= x0;
    b -= y0;
    x1 = a*cosa - b*sina;
    y1 = a*sina + b*cosa;
  }
  char* rotateE (char* p) {
    char* newpos = "";
    cnt = sscanf (p, "e,%lf,%lf%n", &x, &y, &sz);
    if (cnt == 2) {
      rotate (x,y);
      newpos = newpos + sprintf ("e%lf,%lf ", x1, y1);
      p = substr(p, sz);
    }
    cnt = sscanf (p, "s,%lf,%lf%n", &x, &y, &sz);
    if (cnt == 2) {
      rotate (x,y);
      newpos = newpos + sprintf ("s%lf,%lf ", x1, y1);
      p = substr(p, sz);
    }

while (sscanf (p, "%lf,%lf%n", &x, &y, &sz) == 2) {
      rotate (x,y);
      newpos = newpos + sprintf ("%lf,%lf ", x1, y1);
      p = substr(p, sz);
    }

return newpos;
  }
}

BEG_G {
  node_t ctr = node ($, ARGV[0]);

sscanf (ARGV[1], "%f", &angle);
  cosa = cos(angle);
  sina = sin(angle);

sscanf (ctr.pos, "%f,%f", &x0, &y0);
  $.bb ="";
}
N {
  sscanf ($.pos, "%f,%f", &x, &y);
  rotate (x,y);
  $.pos = sprintf ("%f,%f", x1, y1);
}
E {
  $.pos = rotateE($.pos);
}

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Editing: rotate

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