merge geojsons

merge geojsons.ipynb

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      "metadata": {
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      "cell_type": "code",
      "source": "import ee\nimport geemap",
      "execution_count": 1,
      "outputs": []
    },
    {
      "metadata": {
        "trusted": true
      },
      "cell_type": "code",
      "source": "Map = geemap.Map()\nMap",
      "execution_count": 2,
      "outputs": [
        {
          "output_type": "display_data",
          "data": {
            "text/plain": "Map(center=[40, -100], controls=(WidgetControl(options=['position'], widget=HBox(children=(ToggleButton(value=…",
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    {
      "metadata": {
        "trusted": true
      },
      "cell_type": "code",
      "source": "# poly1 = geemap.geojson_to_ee('poly1.geojson')",
      "execution_count": 3,
      "outputs": []
    },
    {
      "metadata": {
        "trusted": true
      },
      "cell_type": "code",
      "source": "# Map.addLayer(poly1, {}, \"Poly1\")",
      "execution_count": 4,
      "outputs": []
    },
    {
      "metadata": {
        "trusted": true
      },
      "cell_type": "code",
      "source": "# Map.centerObject(poly1, 16)",
      "execution_count": 5,
      "outputs": []
    },
    {
      "metadata": {
        "trusted": true
      },
      "cell_type": "code",
      "source": "import glob",
      "execution_count": 6,
      "outputs": []
    },
    {
      "metadata": {},
      "cell_type": "markdown",
      "source": "Search all geojson files under the working directory"
    },
    {
      "metadata": {
        "trusted": true
      },
      "cell_type": "code",
      "source": "files = glob.glob('*.geojson')\nprint(files)",
      "execution_count": 7,
      "outputs": [
        {
          "output_type": "stream",
          "text": "['poly2.geojson', 'poly1.geojson', 'poly3.geojson']\n",
          "name": "stdout"
        }
      ]
    },
    {
      "metadata": {
        "trusted": true
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      "cell_type": "code",
      "source": "ee_list = []",
      "execution_count": 8,
      "outputs": []
    },
    {
      "metadata": {},
      "cell_type": "markdown",
      "source": "Convert geojson files to FeatureCollection"
    },
    {
      "metadata": {
        "trusted": true
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      "cell_type": "code",
      "source": "for file in files:\n    ee_list.append(geemap.geojson_to_ee(file))",
      "execution_count": 9,
      "outputs": []
    },
    {
      "metadata": {},
      "cell_type": "markdown",
      "source": "Merge all feature collections as one single FeatureCollection"
    },
    {
      "metadata": {
        "trusted": true
      },
      "cell_type": "code",
      "source": "fc = ee.FeatureCollection(ee_list).flatten()",
      "execution_count": 10,
      "outputs": []
    },
    {
      "metadata": {
        "trusted": true
      },
      "cell_type": "code",
      "source": "fc.getInfo()",
      "execution_count": 11,
      "outputs": [
        {
          "output_type": "execute_result",
          "execution_count": 11,
          "data": {
            "text/plain": "{'type': 'FeatureCollection',\n 'columns': {'clmt_rg': 'String',\n  'country': 'String',\n  'county': 'String',\n  'dscrptn': 'String',\n  'dt_cllc': 'String',\n  'dt_frmt': 'String',\n  'elevatn': 'Float',\n  'email': 'String',\n  'entity': 'String',\n  'exprmnt': 'String',\n  'fild_cd': 'String',\n  'fild_nm': 'String',\n  'fl_frmt': 'String',\n  'max_lat': 'Float',\n  'max_lng': 'Float',\n  'min_lat': 'Float',\n  'min_lng': 'Float',\n  'sbmttd_': 'String',\n  'season': 'String',\n  'species': 'String',\n  'state': 'String',\n  'system:index': 'String',\n  'zip_cod': 'String'},\n 'features': [{'type': 'Feature',\n   'geometry': {'type': 'Polygon',\n    'coordinates': [[[-97.05166597033683, 41.974425278649925],\n      [-97.05334939216945, 41.97445319563305],\n      [-97.0534431660458, 41.97314640174551],\n      [-97.05175467769998, 41.9730905666214],\n      [-97.05166597033683, 41.974425278649925]]]},\n   'id': '0_0',\n   'properties': {'clmt_rg': 'Continental, no dry season, hot summer',\n    'country': 'United States of America',\n    'county': 'Stanton',\n    'dscrptn': 'Corteva Exchange',\n    'dt_cllc': '2020-08-21',\n    'dt_frmt': 'vector',\n    'elevatn': 444.9,\n    'email': '[email protected]',\n    'entity': 'Benson Hill',\n    'exprmnt': 'Field Trials',\n    'fild_cd': 'NENF',\n    'fild_nm': 'Norfolk, NE - NENF - 23-26',\n    'fl_frmt': 'geoJson',\n    'max_lat': 41.97445319563305,\n    'max_lng': -97.05166597033683,\n    'min_lat': 41.9730905666214,\n    'min_lng': -97.0534431660458,\n    'sbmttd_': 'Pedro Gonzalez',\n    'season': '2020S',\n    'species': 'Glycine max',\n    'state': 'Nebraska',\n    'zip_cod': '68701'}},\n  {'type': 'Feature',\n   'geometry': {'type': 'Polygon',\n    'coordinates': [[[-97.05166597033683, 41.974425278649925],\n      [-97.05334939216945, 41.97445319563305],\n      [-97.0534431660458, 41.97314640174551],\n      [-97.05175467769998, 41.9730905666214],\n      [-97.05166597033683, 41.974425278649925]]]},\n   'id': '1_0',\n   'properties': {'clmt_rg': 'Continental, no dry season, hot summer',\n    'country': 'United States of America',\n    'county': 'Stanton',\n    'dscrptn': 'Corteva Exchange',\n    'dt_cllc': '2020-08-21',\n    'dt_frmt': 'vector',\n    'elevatn': 444.9,\n    'email': '[email protected]',\n    'entity': 'Benson Hill',\n    'exprmnt': 'Field Trials',\n    'fild_cd': 'NENF',\n    'fild_nm': 'Norfolk, NE - NENF - 23-26',\n    'fl_frmt': 'geoJson',\n    'max_lat': 41.97445319563305,\n    'max_lng': -97.05166597033683,\n    'min_lat': 41.9730905666214,\n    'min_lng': -97.0534431660458,\n    'sbmttd_': 'Pedro Gonzalez',\n    'season': '2020S',\n    'species': 'Glycine max',\n    'state': 'Nebraska',\n    'zip_cod': '68701'}},\n  {'type': 'Feature',\n   'geometry': {'type': 'Polygon',\n    'coordinates': [[[-97.05166597033683, 41.974425278649925],\n      [-97.05334939216945, 41.97445319563305],\n      [-97.0534431660458, 41.97314640174551],\n      [-97.05175467769998, 41.9730905666214],\n      [-97.05166597033683, 41.974425278649925]]]},\n   'id': '2_0',\n   'properties': {'clmt_rg': 'Continental, no dry season, hot summer',\n    'country': 'United States of America',\n    'county': 'Stanton',\n    'dscrptn': 'Corteva Exchange',\n    'dt_cllc': '2020-08-21',\n    'dt_frmt': 'vector',\n    'elevatn': 444.9,\n    'email': '[email protected]',\n    'entity': 'Benson Hill',\n    'exprmnt': 'Field Trials',\n    'fild_cd': 'NENF',\n    'fild_nm': 'Norfolk, NE - NENF - 23-26',\n    'fl_frmt': 'geoJson',\n    'max_lat': 41.97445319563305,\n    'max_lng': -97.05166597033683,\n    'min_lat': 41.9730905666214,\n    'min_lng': -97.0534431660458,\n    'sbmttd_': 'Pedro Gonzalez',\n    'season': '2020S',\n    'species': 'Glycine max',\n    'state': 'Nebraska',\n    'zip_cod': '68701'}}]}"
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      "cell_type": "code",
      "source": "Map.addLayer(fc, {}, \"ROIs\")",
      "execution_count": 12,
      "outputs": []
    }
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