Как импортировать файлы GeoJSON для использования в редакторе кода Google Earth Engine?
Я сгенерировал некоторые точки интереса с моей базой данных с SQL для geoJSON.
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"
}
]
}
Я хотел бы импортировать этот геоджон в мой редактор кода в Google Earth Engine. Просматривая документы ( менеджер ресурсов), GEE принимает активы в виде растровых изображений, шейп-файлов (.shp, shx, dbf, prj).
Кроме того, я нашел импорт в коллекцию объектов с помощью таблиц Fusion, но для этого все еще нужны шейп-файлы.
Я нашел некоторый геойсон для шейп-файлов собеседников, хотя мне нужен способ напрямую импортировать мой геойсон в коллекцию объектов в GEE. Это возможно?
2 ответа
Решение
Вы также можете напрямую импортировать объекты геометрии GeoJSON, используя, например, этот формат для MultiPolygon:
feature_geometry =
{
'type': 'MultiPolygon',
'coordinates': [[[
[-120, 35],
[-120.001, 35],
[-120.001, 35.001],
[-120, 35.001],
[-120, 35]
]]]
}
Это идентично спецификации GeoJSON ( источник):
{
"type": "MultiPolygon",
"coordinates": [
[
[ [102.0, 2.0], [103.0, 2.0], [103.0, 3.0], [102.0, 3.0], [102.0, 2.0] ]
],
[
[ [100.0, 0.0], [101.0, 0.0], [101.0, 1.0], [100.0, 1.0], [100.0, 0.0] ],
[ [100.2, 0.2], [100.8, 0.2], [100.8, 0.8], [100.2, 0.8], [100.2, 0.2] ]
]
]
}
Конечно, вы также можете прочитать эти данные из файла GeoJSON:
import json
data = json.loads(geojson_file)
Для красивой простой обертки есть pygeoj библиотека, но данные JSON хорошо обрабатываются в Python и, конечно, в JS.
Вы можете легко использовать OGR для преобразования ваших данных в шейп-файл (который затем вы можете загрузить через редактор кода) или в KML и загрузить его в FusionTables.
ogr2ogr -f KML output.kml input.json
Тем не менее, ваша FeatureCollection недействительна GeoJSON, и вам придется сначала это исправить. Преамбула должна выглядеть так:
{
"type": "FeatureCollection",
"features": [
{
"geometry" : { ...