ete3.TextFace：叶子标签大小（fsize）在圆形树形图上没有变化（Python 3）

Question

我一直在研究ete3的包装器，我可以自定义叶标签（即哪些叶子显示标签）和节点存在（即显示哪些叶节点）。我遇到问题的一个部分是定义标签大小。

当我尝试更改fsize中的TextFace时，没有真正发生的事情:(我遇到了一个奇怪的怪癖，我的实际数据中标签很大，树很小。

我无法获得实际树形图的比例和标签一起工作以形成一个有凝聚力的数字。

以下是无法更改iris数据集上的标签大小的示例 下面附有3种不同的标签尺寸：1, 1e2, and 1e4

import pandas as pd
from sklearn.datasets import load_iris
import ete3

# Get data
X = pd.DataFrame(load_iris().data, columns=[load_iris().feature_names], index=["iris_%d"%_ for _ in range(150)])
DF_dism = 1 - X.T.corr()
# outside program to create newick tree
tree_str = '(((((((((((iris_105:0.015466,iris_104:0.015466):0.002489,iris_128:0.017954):0.051900,iris_134:0.069854):0.014699,iris_106:0.084554):0.029907,((((iris_113:0.008951,iris_108:0.008951):0.007140,iris_114:0.016091):0.020324,iris_132:0.036415):0.015510,iris_122:0.051925):0.062536):0.154083,iris_100:0.268544):0.059595,((((iris_143:0.029031,iris_130:0.029031):0.035661,iris_121:0.064692):0.035647,((((iris_142:0.000000,iris_101:0.000000):0.010308,iris_107:0.010308):0.023017,iris_119:0.033325):0.027399,iris_103:0.060724):0.039616):0.060280,(((((iris_111:0.010695,iris_102:0.010695):0.004910,iris_140:0.015606):0.019544,iris_144:0.035150):0.021438,(iris_146:0.026679,iris_135:0.026679):0.029909):0.013635,iris_136:0.070223):0.090396):0.167519):0.152880,((((((iris_137:0.036573,iris_117:0.036573):0.005650,(iris_116:0.021554,iris_109:0.021554):0.020669):0.014556,((iris_125:0.016457,iris_124:0.016457):0.013361,(iris_149:0.013347,iris_148:0.013347):0.016472):0.026961):0.015363,(iris_120:0.052702,iris_112:0.052702):0.019440):0.019892,iris_83:0.092034):0.090205,(((((iris_147:0.019669,iris_123:0.019669):0.025376,iris_139:0.045045):0.004471,iris_133:0.049517):0.038807,(iris_145:0.046706,iris_68:0.046706):0.041617):0.003435,((iris_129:0.034158,iris_72:0.034158):0.018834,iris_115:0.052993):0.038766):0.090480):0.298780):0.446896,iris_118:0.927915):0.171235,(((((((((iris_89:0.019602,iris_78:0.019602):0.012196,iris_94:0.031798):0.021078,(iris_62:0.024576,iris_54:0.024576):0.028300):0.019265,(iris_76:0.021066,iris_60:0.021066):0.051074):0.033419,(iris_91:0.061458,iris_52:0.061458):0.044101):0.073034,((((((iris_73:0.015746,iris_55:0.015746):0.007907,iris_70:0.023653):0.017085,iris_63:0.040738):0.033484,(iris_77:0.026480,iris_53:0.026480):0.047742):0.021259,iris_84:0.095481):0.008300,iris_66:0.103781):0.074812):0.095629,((((iris_131:0.025100,iris_127:0.025100):0.033935,iris_126:0.059035):0.040224,((iris_138:0.040319,iris_110:0.040319):0.005869,iris_90:0.046188):0.053071):0.017816,(iris_141:0.074887,iris_87:0.074887):0.042187):0.157148):0.215498,(((((iris_93:0.013769,iris_71:0.013769):0.008009,iris_65:0.021777):0.053482,iris_57:0.075259):0.036176,(((iris_88:0.024950,iris_85:0.024950):0.038041,iris_95:0.062991):0.011447,((((iris_75:0.013694,iris_50:0.013694):0.013866,iris_51:0.027560):0.005357,iris_82:0.032917):0.006739,(iris_74:0.022758,iris_61:0.022758):0.016898):0.034782):0.036997):0.085015,((((iris_99:0.015603,iris_67:0.015603):0.011335,(iris_96:0.010209,iris_56:0.010209):0.016730):0.031396,(iris_97:0.016052,iris_81:0.016052):0.042283):0.030065,(((iris_80:0.014517,iris_58:0.014517):0.019641,iris_59:0.034158):0.018663,((iris_92:0.016236,iris_86:0.016236):0.008542,iris_69:0.024778):0.028044):0.035579):0.108050):0.293270):0.285865,((iris_79:0.123616,iris_64:0.123616):0.124095,iris_98:0.247711):0.527874):0.323564):2.691791,((((iris_41:0.252019,iris_25:0.252019):0.163686,(((((iris_29:0.022655,iris_8:0.022655):0.021997,iris_3:0.044652):0.003728,iris_45:0.048380):0.042574,((iris_12:0.021454,iris_1:0.021454):0.024231,iris_23:0.045685):0.045269):0.048283,(((iris_30:0.015235,iris_20:0.015235):0.026412,((iris_34:0.000000,iris_9:0.000000):0.000000,iris_37:0.000000):0.041647):0.030817,iris_24:0.072463):0.066774):0.276467):0.140239,((((((((iris_39:0.009341,iris_18:0.009341):0.008969,iris_26:0.018311):0.020329,iris_11:0.038639):0.016404,((iris_28:0.016981,iris_27:0.016981):0.013305,(iris_49:0.016905,iris_7:0.016905):0.013381):0.024757):0.022419,iris_31:0.077462):0.013526,((iris_47:0.027609,iris_38:0.027609):0.019907,iris_44:0.047516):0.043472):0.107130,(((iris_17:0.027138,iris_5:0.027138):0.025207,((iris_48:0.018085,iris_0:0.018085):0.007010,iris_43:0.025096):0.027249):0.032517,((iris_36:0.008628,iris_35:0.008628):0.032997,(iris_10:0.006140,iris_2:0.006140):0.035485):0.043237):0.113256):0.120936,((((iris_40:0.016634,iris_21:0.016634):0.014411,iris_6:0.031045):0.046044,iris_19:0.077089):0.029864,(((iris_42:0.018855,iris_13:0.018855):0.014108,iris_46:0.032962):0.011022,iris_4:0.043984):0.062968):0.212102):0.236889):0.303087,(((((iris_33:0.060688,iris_16:0.060688):0.035284,iris_32:0.095972):0.034956,iris_14:0.130928):0.063009,iris_15:0.193936):0.224991,iris_22:0.418928):0.440103):2.931910);'
# ete3 tree
tree = ete3.Tree(tree_str)
# Annotate tree
node_size = 10
label_size = 10000
for node in tree.traverse():
    if node.is_leaf():
        node.img_style["size"] = node_size

        # Show leaf labels
        name_face = ete3.TextFace(node.name, fgcolor="black", fsize=label_size)
        node.add_face(name_face, column=0, position='branch-right')

# Circular Style
ts = ete3.TreeStyle()
ts.show_branch_length = True # show branch length
ts.show_scale = True
ts.mode = "c" # "c" is circular mode
ts.show_leaf_name = False
ts.show_scale = False
tree.render("%%inline", dpi=300, tree_style=ts, w=500)

标签较长时，我不确定如何将标签大小更改为树大小比例。例如，下面：