如何导入 GeoJSON 文件以在 Google Earth Engine 代码编辑器中使用？
How do I import GeoJSON files for use in Google Earth Engine Code Editor?
我已经使用 SQL 到 geoJSON 生成了我的数据库中的一些兴趣点。
geojson:
{
"FeatureCollection" : [
{
"geometry" : {
"coordinates" : [
-45.927083,
-12.260889
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "626.46"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.916500,
-12.255944
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "565.04"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.949417,
-12.270361
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "631.47"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.958833,
-12.277361
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "591.85"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.942944,
-12.249889
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "644.67"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.930917,
-12.243611
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "644.67"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.871917,
-12.197139
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "574.60"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.866861,
-12.206417
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "574.60"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.967389,
-12.261889
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "592.50"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.973500,
-12.250639
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "592.50"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.962944,
-12.245444
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "621.60"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.952667,
-12.239778
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "592.50"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.931639,
-12.228528
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "574.60"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.908694,
-12.247472
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "557.20"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.918667,
-12.239139
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "644.50"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.897028,
-12.246000
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "557.20"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.906417,
-12.230472
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "64.50"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.895750,
-12.225028
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "644.50"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.927111,
-12.213750
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "564.90"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.917639,
-12.208750
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "564.90"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.897833,
-12.198444
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "584.00"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.881583,
-12.202233
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "574.60"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.876833,
-12.235306
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "574.60"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.867278,
-12.230306
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "574.60"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.856806,
-12.224889
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "574.60"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.861806,
-12.215611
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "574.60"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.887833,
-12.192806
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "12.60"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.877639,
-12.187917
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "564.90"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.941889,
-12.234611
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "644.50"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.887111,
-12.239889
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "644.50"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.907944,
-12.203361
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "591.70"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.892722,
-12.208028
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "574.60"
},
"type" : "Feature"
}
]
}
我想将此 geojson 导入我在 Google Earth Engine 上的代码编辑器。查看文档 (assets manager)，GEE 接受光栅图像、形状文件（.shp、shx、dbf、prj）等资产。
此外，我发现通过融合表导入特征集合，但它仍然需要 shapefile。
我找到了一些 geojson 到 shapefile 转换器，尽管我需要一种方法将我的 geojson 直接导入到 GEE 上的特征集合。这可能吗？
您可以轻松地使用 OGR 将您的数据转换为 shapefile（然后您可以通过代码编辑器上传）或 KML 并将其上传到 FusionTables。
ogr2ogr -f KML output.kml input.json
但是，您的 FeatureCollection 不是有效的 GeoJSON，您必须先修复它。序言应如下所示：
{
"type": "FeatureCollection",
"features": [
{
"geometry" : { ...
您还可以将 GeoJSON 几何对象直接导入到 JavaScript 或 Python API 中，例如，对于 MultiPolygon 使用此格式：
feature_geometry = {
"type": "MultiPolygon",
'coordinates": [
[
[
[-120, 35],
[-120.001, 35],
[-120.001, 35.001],
[-120, 35.001],
[-120, 35]
]
]
]
}
两个哈希映射（即字典）与 GeoJSON 规范相同 (source):
{
"type": "MultiPolygon",
"coordinates": [
[
[
[-120, 35],
[-120.001, 35],
[-120.001, 35.001],
[-120, 35.001],
[-120, 35]
]
]
]
}
当然，您也可以从 GeoJSON 文件中读取此数据（显示 Python 示例）：
import json
data = json.loads(geojson_file)
对于一个简单的 Python 包装器，有 pygeoj 库，但是 JSON 数据在 Python 和 [=28= 中本机处理得很好].
我已经使用 SQL 到 geoJSON 生成了我的数据库中的一些兴趣点。
geojson:
{
"FeatureCollection" : [
{
"geometry" : {
"coordinates" : [
-45.927083,
-12.260889
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "626.46"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.916500,
-12.255944
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "565.04"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.949417,
-12.270361
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "631.47"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.958833,
-12.277361
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "591.85"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.942944,
-12.249889
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "644.67"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.930917,
-12.243611
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "644.67"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.871917,
-12.197139
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "574.60"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.866861,
-12.206417
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "574.60"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.967389,
-12.261889
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "592.50"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.973500,
-12.250639
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "592.50"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.962944,
-12.245444
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "621.60"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.952667,
-12.239778
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "592.50"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.931639,
-12.228528
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "574.60"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.908694,
-12.247472
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "557.20"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.918667,
-12.239139
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "644.50"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.897028,
-12.246000
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "557.20"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.906417,
-12.230472
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "64.50"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.895750,
-12.225028
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "644.50"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.927111,
-12.213750
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "564.90"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.917639,
-12.208750
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "564.90"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.897833,
-12.198444
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "584.00"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.881583,
-12.202233
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "574.60"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.876833,
-12.235306
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "574.60"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.867278,
-12.230306
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "574.60"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.856806,
-12.224889
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "574.60"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.861806,
-12.215611
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "574.60"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.887833,
-12.192806
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "12.60"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.877639,
-12.187917
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "564.90"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.941889,
-12.234611
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "644.50"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.887111,
-12.239889
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "644.50"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.907944,
-12.203361
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "591.70"
},
"type" : "Feature"
},
{
"geometry" : {
"coordinates" : [
-45.892722,
-12.208028
],
"type" : "Point"
},
"properties" : {
"grower" : "foo",
"name" : "bar",
"radius" : "574.60"
},
"type" : "Feature"
}
]
}
我想将此 geojson 导入我在 Google Earth Engine 上的代码编辑器。查看文档 (assets manager)，GEE 接受光栅图像、形状文件（.shp、shx、dbf、prj）等资产。
此外，我发现通过融合表导入特征集合，但它仍然需要 shapefile。
我找到了一些 geojson 到 shapefile 转换器，尽管我需要一种方法将我的 geojson 直接导入到 GEE 上的特征集合。这可能吗？
您可以轻松地使用 OGR 将您的数据转换为 shapefile（然后您可以通过代码编辑器上传）或 KML 并将其上传到 FusionTables。
ogr2ogr -f KML output.kml input.json
但是，您的 FeatureCollection 不是有效的 GeoJSON，您必须先修复它。序言应如下所示：
{
"type": "FeatureCollection",
"features": [
{
"geometry" : { ...
您还可以将 GeoJSON 几何对象直接导入到 JavaScript 或 Python API 中，例如，对于 MultiPolygon 使用此格式：
feature_geometry = {
"type": "MultiPolygon",
'coordinates": [
[
[
[-120, 35],
[-120.001, 35],
[-120.001, 35.001],
[-120, 35.001],
[-120, 35]
]
]
]
}
两个哈希映射（即字典）与 GeoJSON 规范相同 (source):
{
"type": "MultiPolygon",
"coordinates": [
[
[
[-120, 35],
[-120.001, 35],
[-120.001, 35.001],
[-120, 35.001],
[-120, 35]
]
]
]
}
当然，您也可以从 GeoJSON 文件中读取此数据（显示 Python 示例）：
import json
data = json.loads(geojson_file)
对于一个简单的 Python 包装器，有 pygeoj 库，但是 JSON 数据在 Python 和 [=28= 中本机处理得很好].