Fixed processing of push bonds when no crossovers exist between two adjacent helices

atomicModel.py

@@ -999,7 +999,8 @@ class atomicModel():
                             if hid2 not in helixIds:
                                 # print("WARNING: writeENM: helix %d not in helixIds" % hid2) # xo[%d] dict" % (hid2,hid))
                                 continue
-                            dist = min([np.abs(z-zidx) for z in xo[hid][hid2]])
+                            dists = [minDist,] + [np.abs(z-zidx) for z in xo[hid][hid2]]
+                            dist = min(dists)
                             key = (hid2,zidx,isFwd)
                             if dist >= minDist and key in ntDict:
                                 nt2  = ntDict[key]