1
ジオメトリの領域を計算したいと思います。これらのジオメトリの一部はジオメトリコレクションにすることができます。しかし、私はこれを行うことはできません。魅力的なのはgeojsonからジオメトリコレクションを作成しないからです。ここでGeoJsonからGeometryCollectionを作成するにはどうすればいいですか？
はサンプルコードです：ここで
import sys
import shapely
from shapely.geometry import shape
print sys.version
print shapely.__version__
shp = shape({ "type" : "GeometryCollection", "geometries" : [ { "type" : "MultiPolygon", "coordinates" : [ [ [ [ -176.392059198913, -44.2871679740063 ], [ -176.392051742896, -44.287151383102 ], [ -176.392031530803, -44.2871344706636 ], [ -176.39200961191, -44.2871265610425 ], [ -176.391981764136, -44.2871247604782 ], [ -176.391958318107, -44.2871296477241 ], [ -176.391938555171, -44.2871399366613 ], [ -176.391926697409, -44.2871518332429 ], [ -176.391919510887, -44.2871685527587 ], [ -176.391919510887, -44.2871809637809 ], [ -176.391926697409, -44.2871977475943 ], [ -176.39194142978, -44.2872117662547 ], [ -176.391952299394, -44.2872176823855 ], [ -176.391975026771, -44.2872241772677 ], [ -176.392002874545, -44.287224370185 ], [ -176.392025601922, -44.2872180682202 ], [ -176.392043837722, -44.2872068790156 ], [ -176.392055875147, -44.2871915742382 ], [ -176.392059198913, -44.2871679740063 ] ] ], [ [ [ -176.395054990554, -44.2866718524961 ], [ -176.394985011794, -44.2865985431944 ], [ -176.394870296932, -44.2865318573729 ], [ -176.39471973929, -44.2864943666608 ], [ -176.394478451805, -44.2864536605947 ], [ -176.394252974669, -44.2864997684115 ], [ -176.39423896095, -44.2864981607477 ], [ -176.394288098796, -44.2862575894326 ], [ -176.394110412033, -44.2860409393617 ], [ -176.393535220757, -44.2860305859249 ], [ -176.393376668109, -44.2861752766473 ], [ -176.393372446027, -44.2862439563855 ], [ -176.39308166137, -44.2869353793885 ], [ -176.39289184735, -44.2873133692894 ], [ -176.39283543315, -44.2873595407371 ], [ -176.392827258481, -44.2874577353246 ], [ -176.393011952104, -44.2875944486682 ], [ -176.393422751683, -44.2876439637706 ], [ -176.393631699818, -44.2875120734508 ], [ -176.393639694824, -44.2875105944256 ], [ -176.393681556316, -44.2875372811799 ], [ -176.39377641841, -44.287580044267 ], [ -176.393856817628, -44.2876262798103 ], [ -176.393945122021, -44.2877477524342 ], [ -176.393972790132, -44.2878800923601 ], [ -176.394000817568, -44.2880426552818 ], [ -176.394041062093, -44.2881004653263 ], [ -176.394137451323, -44.2881293381748 ], [ -176.39437882864, -44.2881469576789 ], [ -176.39444934639, -44.288034231344 ], [ -176.394488512936, -44.2878805424954 ], [ -176.39452749982, -44.2877896794012 ], [ -176.394566756197, -44.2876918712001 ], [ -176.394586429302, -44.2875450621349 ], [ -176.394533159206, -44.2873842340869 ], [ -176.394460844825, -44.2872859750708 ], [ -176.394428864801, -44.2872049498422 ], [ -176.394396705114, -44.2871413513901 ], [ -176.39438879994, -44.2870604545739 ], [ -176.394445393803, -44.2869391734468 ], [ -176.394558042539, -44.2869161518684 ], [ -176.394670691276, -44.2869161518684 ], [ -176.394839754212, -44.286887471342 ], [ -176.394996330566, -44.2868534533899 ], [ -176.39503531745, -44.2868046449896 ], [ -176.395045109086, -44.2867417534732 ], [ -176.395054990554, -44.2866718524961 ] ] ] ] }, { "type" : "MultiLineString", "coordinates" : [ [ [ -176.394252974669, -44.2864997684115 ], [ -176.394075737063, -44.2866440721399 ] ], [ [ -176.394075737063, -44.2866440721399 ], [ -176.39390685379, -44.2866785403577 ] ], [ [ -176.39390685379, -44.2866785403577 ], [ -176.393761955534, -44.286695774459 ] ], [ [ -176.393761955534, -44.286695774459 ], [ -176.393633137123, -44.2867187318175 ] ], [ [ -176.393633137123, -44.2867187318175 ], [ -176.393624872622, -44.2868689511739 ] ], [ [ -176.393624872622, -44.2868689511739 ], [ -176.393624962454, -44.286990361058 ] ], [ [ -176.393624962454, -44.286990361058 ], [ -176.393624513296, -44.2870655347429 ] ], [ [ -176.393624513296, -44.2870655347429 ], [ -176.393624423464, -44.2871117706912 ] ], [ [ -176.393624423464, -44.2871117706912 ], [ -176.393615889469, -44.2873486730876 ] ], [ [ -176.393615889469, -44.2873486730876 ], [ -176.393639694824, -44.2875105944256 ] ] ] } ] })
print shp.area
が出力されます。
2.7.6 (default, Jun 22 2015, 17:58:13)
[GCC 4.8.2]
1.5.13
Traceback (most recent call last):
...
File "/usr/local/lib/python2.7/dist-packages/Shapely-1.5.13-py2.7.egg/shapely/geometry/geo.py", line 42, in shape
raise ValueError("Unknown geometry type: %s" % geom_type)
ValueError: Unknown geometry type: geometrycollection
たぶん見栄えの最新バージョンは、これを行うことができますか？もしそうなら、どのバージョンをubuntuの下にインストールできますか？そうでない場合は、ジオメトリコレクション領域を計算する別の方法は何ですか？