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/* computes the bounding box of a graph based on its nodes taking into account clusters and node sizes. */ BEGIN { double x, y, w2, h2; double llx, lly, urx, ury; double llx0, lly0, urx0, ury0; graph_t clustBB (graph_t G) { graph_t sg; for (sg = fstsubg(G); sg; sg = nxtsubg(sg)) { sg = clustBB(sg); } if (G.name == "cluster*") { sscanf (G.bb, "%lf,%lf,%lf,%lf", &llx0, &lly0, &urx0, &ury0); if (llx0 < llx) llx = llx0; if (lly0 < lly) lly = lly0; if (urx0 > urx) urx = urx0; if (ury0 > ury) ury = ury0; } return G; } } BEG_G { llx = 1000000; lly = 1000000; urx = -1000000; ury = -1000000; } N { sscanf ($.pos, "%lf,%lf", &x, &y); w2 = (36.0*(double)$.width); h2 = (36.0*(double)$.height); if ((x - w2) < llx) llx = x - w2; if ((x + w2) > urx) urx = x + w2; if ((y - h2) < lly) lly = y - h2; if ((y + h2) > ury) ury = y + h2; } END_G { clustBB ($); $.bb = sprintf ("%lf,%lf,%lf,%lf", llx, lly, urx, ury); }
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