diff options
Diffstat (limited to 'fg21sim/extragalactic/clusters')
| -rw-r--r-- | fg21sim/extragalactic/clusters/mergertree.py | 50 |
1 files changed, 22 insertions, 28 deletions
diff --git a/fg21sim/extragalactic/clusters/mergertree.py b/fg21sim/extragalactic/clusters/mergertree.py index 265de0d..accf98a 100644 --- a/fg21sim/extragalactic/clusters/mergertree.py +++ b/fg21sim/extragalactic/clusters/mergertree.py @@ -108,35 +108,29 @@ def show_mtree(mtree): """ Trace the main cluster and show its formation history. """ - def _show_event(main, sub=None, parent=None): - z = main.data["z"] - age = main.data["age"] - mass = main.data["mass"] - info = "[z=%.3f/t=%05.2f]" % (z, age) - if sub is None: - # Accretion - info += " %.3e" % mass - if parent is not None: - dM = parent.data["mass"] - mass - info += " (dM=%.2e) " % dM - else: - # Merger - Msub = sub.data["mass"] + parent = None + for i, (main, sub) in enumerate(mtree.itermain()): + info = "%2d: " % i + z = main["z"] + age = main["age"] + info += "<z=%.3f/t=%05.2f> " % (z, age) + mass = main["mass"] + if sub: + # merger event + Msub = sub["mass"] Rmass = mass / Msub - info += " %.3e <> %.3e (Rm=%04.1f)" % (mass, Msub, Rmass) - if parent is not None: - info += " <dz=%.3f/dt=%.2f>" % (z-parent.data["z"], - parent.data["age"]-age) - return info - - i = 0 - info = _show_event(main=mtree) - print("%2d %s" % (i, info)) - while mtree and mtree.main: - i += 1 - info = _show_event(main=mtree.main, sub=mtree.sub, parent=mtree) - print("%2d %s" % (i, info)) - mtree = mtree.main + info += "[%.3e @@@ %.3e] (Rm=%04.1f)" % (mass, Msub, Rmass) + elif parent: + # accretion event + dM = parent["mass"] - mass + info += " %.3e + %.3e " % (mass, dM) + else: + # root cluster + info += " %.3e" % mass + if parent: + info += " <dz=%.3f/dt=%.2f>" % (z-parent["z"], parent["age"]-age) + parent = main + print(info) def plot_mtree(mtree, outfile, figsize=(12, 8)): |