static void perhapsinitialize()
{
assertx(pt.n && mesh.numVertices());
assertw1(spring>0); // just warn user
if (pt.cmf[0]) return; // already initialized
computexform();
initialprojection();
}
static int domfilename(int argc, char const** argv)
{
TIMER(_mfilename);
assertx(argc>1);
assertx(!mesh.numVertices());
RFile is(argv[1]);
mesh.read(is());
return 2;
}