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//usr/share/graphviz/gvpr/bbox
/* computes the bounding box of a graph based on node positions */ BEGIN { double xmin, ymin, xmax, ymax; xmin = ymin = 1.7976931348623157e+308; xmax = ymax = -ymin; double x, y; } N { if (sscanf ($.pos, "%f,%f", &x, &y) == 2) { if (x < xmin) xmin = x; if (y < ymin) ymin = y; if (x > xmax) xmax = x; if (y > ymax) ymax = y; } } END { printf ("(%f,%f) (%f,%f)\n", xmin, ymin, xmax, ymax); if (ARGC) printf ("area = %f aspect = %f\n", ((xmax-xmin)*(ymax-ymin))/1000000., (xmax-xmin)/(ymax-ymin)); }
