choropleth返回空白

Question

我有一个GeoDataFrame，它从Geopandas绘制得很好，但在Folium中返回为空白。

Folium 0.7.0 Geopandas 0.5.0

import matplotlib.pyplot as plt
plt.rcParams['figure.figsize'] = [12, 12] 
radiosambab.plot('situacionpromedio', antialiased=False)

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作为geojson

radiosambab.__geo_interface__

返回

{'type': 'FeatureCollection',
 'features': [{'id': '020130302',
   'type': 'Feature',
   'properties': {'situacionpromedio': 1.1173449839705998},
   'geometry': {'type': 'Polygon',
    'coordinates': (((-58.46738862003677, -34.53484761336359),
      (-58.466080612615286, -34.53427219003239),
      (-58.46379657486779, -34.53326322986549),
      (-58.46165233386257, -34.530802575280035),
      (-58.46133757821172, -34.530441540420355),
      (-58.4588949370924, -34.527620828300144),
      (-58.45884013885469, -34.52762641175383),
      (-58.45875915687486, -34.527621382400326),
      (-58.458732162886044, -34.52761970593736),
      (-58.45867655438868, -34.52763422563783),
      (-58.45856182767256, -34.52767203362345),
      (-58.45850001004012, -34.52769515425145),
      (-58.458440891778, -34.52771844249678),
      (-58.45839257108904, -34.52774240132773),
      (-58.45834357673059, -34.5277438516926),
...

调用radiosambab['situacionpromedio']会像预期的那样返回一个地理序列：

COD_2010
020130302    1.117345
020131101    1.117371
020130104    1.161630
020130102    1.087263
020130101    1.268362
020120405    1.132843
020130107    1.085900
020130106    1.028195
020130109    1.056225
020130111    1.061627
020120407    1.138702
020120404    1.084368
020120402    1.078862
...

但是，当调用folium.Choropleth时，它不起作用：

m_2 = folium.Map(location=[-34.603722, -58.381592], tiles='openstreetmap', zoom_start=14)
folium.Choropleth(geo_data=radiosambab.__geo_interface__, data=radiosambab['situacionpromedio'], key_on='feature.id', fill_color='YlOrBr').add_to(m_2)
folium.LayerControl().add_to(m_2)
m_2   

返回

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谢谢!

Answer 1

问题似乎与内存不足有关。实际上是在限制多边形数的情况下打印。但在超过2000个多边形的情况下却无法做到这一点。