90. Užklausa: gauti palydovinių vaizdų duomenis pagal geometriją

Gaukite vegetacijos indekso statistikas bet kuriai ad hoc geometrijai - nereikia registruotos lauko ribos. Šis galinis taškas apskaičiuoja santraukines statistikas pikseliams jūsų geometrijoje, tuo tarpu ignoruodamas debesuotus pikselius. Šiuo metu palaikoma: Sentinel2 (S2) , Landsat (L4/L5/L7/L8/L9) ir Planet (PS) tiekėjai.

Šis puslapis atitinka GeoPard API šablonus ir autentifikavimą naudojamą GraphQL galiniuose taškuose.

Ką galite daryti

• Užklausa vegetacijos indeksai skirti Point, MultiPoint, Polygon ir MultiPolygon geometrijos.

• Pasirinkite vaizdus tiekėjus: S2, L4, L5, L7, L8, L9, PS.

• Gauti su datos žyma rezultatus už kiekvieną įsigijimą su:

  • be debesų - frakcija jūsų geometrijos, kuri yra be debesų, reikšmė nuo 0 iki 1, kur 1 reiškia visiškai be debesų.

  • reikšmė - statistika pasirinktam indeksui apskaičiuota tik ant be debesų pikselių, įskaitant min, max, avg, mdn, var, std.

• Papildomai pateikite intervalus indeksų verčių intervalų masyvas, skirtas apskaičiuoti užimtumo statistikas. Kai pateikta, atsakyme bus įtraukta intervalus laukas, rodantis, kokia procentinė dalis ploto patenka į kiekvieną nurodytą intervalą.

  • Plotas, užimtas kiekvienos spalvos/intervulo - pagal indekso reikšmę (nuo mažos iki didelės)

  • Užimtumo procentas - 0..1 reikšmė už intervalą, atspindinti paviršiaus procentą

Palaikomi indeksai

EVI2, NDVI, RVI, LAI, OSAVI, SAVI, GNDVI, IPVI, GCI, WDRVI, RCI, SBI, MCARI1. Indeksų apibrėžtys atitinka GeoPard vegetacijos indeksų katalogą naudojamą visame API.

Įvesties parametrai

Laukas	Tipas	Reikalinga	Pastabos
indeksas	Enum (žiūrėti aukščiau)	✅	Vegetacijos indeksas, kurį reikia apskaičiuoti.
tiekėjus	[Provider!]!	✅	Bet kuris iš S2, L4, L5, L7, L8, L9, PS.
startDate	String (ISO8601)	✅	Įtraukianti pradžia, pvz. "2025-05-10T00:00:00.000Z".
endDate	String (ISO8601)	✅	Išskirtinė pabaiga arba įtraukta pabaiga priklausomai nuo schemos; suderinkite su kitomis GeoPard užklausomis.
geojson	String	✅	A išverstas į eilutę GeoJSON tipo Point / MultiPoint / Polygon / MultiPolygon (WGS84 [lon, lat]). Atminkite, kad reikia pabėgti kabutes viduje eilutės.
intervalus	[[Float!]!]	❌	Masyvas iš [min, max] porų indekso verčių intervalų, skirtų apskaičiuoti užimtumo statistikas

Našumo rekomendacijos

• Poligonų/MultiPolygon geometrijoms palaikykite datos intervalus siaurus (~10–15 dienų) dėl apdorojimo laiko.

• Timeoutas: 30 s. Naudokite mažiau dienų ir (arba) mažiau tiekėjų, jei pasiekiate ribą.

• Taškams/MultiPoint paprastai didesni intervalai yra tinkami (taškai yra lengvi).

Atsakymo forma

graphqlKopijuotiRedaguoti{
  geojson              # atspindys jūsų įvestos geometrijos (išverstas į eilutę)
  data: [
    {
      uuid             # rastrinės scenos id
      provider         # S2, L8, L9, ...
      acquisitionDate  # ISO8601
      cloudfree        # 0..1 be debesų ploto frakcija
      value: {
        index          # pvz., NDVI
        min
        max
        avg
        mdn
        var
        std
      }
      ranges: {
        reikšmė
        coverage
      }
    }
  ]
}

Pavyzdys 1: MultiPolygon su MCARI1 S2/L8/L9 per 5 dienų langą

Užklausti

užklausa GetSatelliteImageryDataByMultiPolygon {
  getSatelliteImageryDataByGeometry(
    input: {
      index: MCARI1                # čia nustatykite indeksą
      providers: [S2, L8, L9]      # palydovų tiekėjai
      startDate: "2025-05-10T00:00:00.000Z"  # poligonams: pageidautina 10–15 dienų; 30s timeout
      endDate:   "2025-05-15T00:00:00.000Z"
      geojson: "{\"type\": \"MultiPolygon\", \"coordinates\":[ [ [ [ 8.09058546, 50.21774961 ], [ 8.09291004, 50.21836077 ], [ 8.09328559, 50.21844893 ], [ 8.09341412, 50.21777585 ], [ 8.09342329, 50.21768228 ], [ 8.09342736, 50.21748691 ], [ 8.09342239, 50.21741988 ], [ 8.09331503, 50.2169872 ], [ 8.09327725, 50.21680672 ], [ 8.0932114, 50.21679383 ], [ 8.09307662, 50.216784 ], [ 8.09268795, 50.21672443 ], [ 8.09256905, 50.21670175 ], [ 8.09160986, 50.21647789 ], [ 8.09153097, 50.21647138 ], [ 8.09144745, 50.216479 ], [ 8.09128792, 50.21653615 ], [ 8.09124139, 50.21654808 ], [ 8.09119362, 50.21655407 ], [ 8.09085379, 50.21653536 ], [ 8.09039423, 50.21649463 ], [ 8.09006609, 50.21646137 ], [ 8.08994025, 50.21644261 ], [ 8.08956206, 50.21636986 ], [ 8.08937343, 50.21632184 ], [ 8.08881276, 50.21616093 ], [ 8.08860924, 50.21608589 ], [ 8.08848952, 50.21605007 ], [ 8.08841856, 50.21616403 ], [ 8.08836721, 50.2162167 ], [ 8.08830625, 50.21626762 ], [ 8.08801583, 50.21648103 ], [ 8.08783363, 50.21660479 ], [ 8.08757577, 50.21677569 ], [ 8.08741435, 50.21686857 ], [ 8.08769592, 50.21696741 ], [ 8.08853411, 50.21720846 ], [ 8.08965086, 50.2174967 ], [ 8.09058546, 50.21774961 ] ] ] ]}"
    }
  ) {
    geojson
    data {
      uuid
      provider
      acquisitionDate
      cloudfree     # 0..1
      value {       # statistika apskaičiuota tik ant be debesų pikselių
        indeksas
        min
        max
        avg
        mdn
        var
        std
      }
    }
  }
}

Atsakymas

{
  "data": {
    "getSatelliteImageryDataByGeometry": {
      "geojson": "\"{\\\"type\\\": \\\"MultiPolygon\\\", \\\"coordinates\\\": [[[[8.09058546, 50.21774961], [8.09291004, 50.21836077], [8.09328559, 50.21844893], [8.09341412, 50.21777585], [8.09342329, 50.21768228], [8.09342736, 50.21748691], [8.09342239, 50.21741988], [8.09331503, 50.2169872], [8.09327725, 50.21680672], [8.0932114, 50.21679383], [8.09307662, 50.216784], [8.09268795, 50.21672443], [8.09256905, 50.21670175], [8.09160986, 50.21647789], [8.09153097, 50.21647138], [8.09144745, 50.216479], [8.09128792, 50.21653615], [8.09124139, 50.21654808], [8.09119362, 50.21655407], [8.09085379, 50.21653536], [8.09039423, 50.21649463], [8.09006609, 50.21646137], [8.08994025, 50.21644261], [8.08956206, 50.21636986], [8.08937343, 50.21632184], [8.08881276, 50.21616093], [8.08860924, 50.21608589], [8.08848952, 50.21605007], [8.08841856, 50.21616403], [8.08836721, 50.2162167], [8.08830625, 50.21626762], [8.08801583, 50.21648103], [8.08783363, 50.21660479], [8.08757577, 50.21677569], [8.08741435, 50.21686857], [8.08769592, 50.21696741], [8.08853411, 50.21720846], [8.08965086, 50.2174967], [8.09058546, 50.21774961]]]]}\"",
      "data": [
        {
          "uuid": "16c45077-3138-5a9a-9947-d9e54ea77e38",
          "provider": "S2",
          "acquisitionDate": "2025-05-13T10:37:03.661000+00:00",
          "cloudfree": 1,
          "value": {
            "index": "MCARI1",
            "min": 3026.88,
            "max": 6452.881,
            "avg": 5020.917,
            "mdn": 5086.56,
            "var": 437905.281,
            "std": 661.744
          }
        },
        {
          "uuid": "cf5d9e51-c0db-5e02-bf97-35c3e7a0fe07",
          "provider": "S2",
          "acquisitionDate": "2025-05-13T10:47:13.154000+00:00",
          "cloudfree": 1,
          "value": {
            "index": "MCARI1",
            "min": 3441.96,
            "max": 6722.04,
            "avg": 5333.138,
            "mdn": 5403.36,
            "var": 372277.75,
            "std": 610.146
          }
        },
        {
          "uuid": "de9b6b8a-a195-5694-98a0-f17e8122855d",
          "provider": "S2",
          "acquisitionDate": "2025-05-11T10:47:17.500000+00:00",
          "cloudfree": "0.5547445255474452",
          "value": {
            "index": "MCARI1",
            "min": 3438.96,
            "max": 6495.96,
            "avg": 5176.501,
            "mdn": 5181,
            "var": 377633.031,
            "std": 614.519
          }
        },
        {
          "uuid": "917b3657-3ddc-5f43-b39f-5d8493282bde",
          "provider": "S2",
          "acquisitionDate": "2025-05-10T10:37:15.656000+00:00",
          "cloudfree": 1,
          "value": {
            "index": "MCARI1",
            "min": 3395.88,
            "max": 6272.881,
            "avg": 4975.816,
            "mdn": 4999.56,
            "var": 333405.031,
            "std": 577.412
          }
        },
        {
          "uuid": "3fc7ed30-677a-5430-a10b-3490d903616c",
          "provider": "L8",
          "acquisitionDate": "2025-05-12T10:21:17.302000+00:00",
          "cloudfree": 1,
          "value": {
            "index": "MCARI1",
            "min": 3171.24,
            "max": 5361,
            "avg": 4227.754,
            "mdn": 4267.68,
            "var": 261266,
            "std": 511.142
          }
        },
        {
          "uuid": "f3d1bd32-e3c8-5260-ba4c-d84c6a171986",
          "provider": "L9",
          "acquisitionDate": "2025-05-13T10:15:17.115000+00:00",
          "cloudfree": 1,
          "value": {
            "index": "MCARI1",
            "min": 3353.52,
            "max": 5451.72,
            "avg": 4428.534,
            "mdn": 4491.48,
            "var": 306042.719,
            "std": 553.211
          }
        }
      ]
    }
  }
}

Pavyzdys 2: MultiPoint su NDVI S2/L8/L9 per 5 dienų langą

Užklausti

užklausa GetSatelliteImageryDataByMultiPoint {
  getSatelliteImageryDataByGeometry(
    input: {
      providers: [S2, L8, L9]
      index: NDVI
      startDate: "2025-05-10T00:00:00.000Z"   # taškai yra lengvi; didesni intervalai galimi; 30s timeout
      endDate:   "2025-05-15T00:00:00.000Z"
      geojson: "{\"type\": \"MultiPoint\", \"coordinates\": [[8.088754, 50.216859],[8.092651, 50.216905],[ 8.090799, 50.217442]]}"
    }
  ) {
    geojson
    data {
      uuid
      provider
      acquisitionDate
      be debesų
      value {
        indeksas
        min
        max
        avg
        mdn
        var
        std
      }
    }
  }
}

Atsakymas

{
  "data": {
    "getSatelliteImageryDataByGeometry": {
      "geojson": "\"{\\\"type\\\": \\\"MultiPoint\\\", \\\"coordinates\\\": [[8.088754, 50.216859], [8.092651, 50.216905], [8.090799, 50.217442]]}\"",
      "data": [
        {
          "uuid": "cf5d9e51-c0db-5e02-bf97-35c3e7a0fe07",
          "provider": "S2",
          "acquisitionDate": "2025-05-13T10:47:13.154000+00:00",
          "cloudfree": 1,
          "value": {
            "index": "NDVI",
            "min": 0.712,
            "max": 0.873,
            "avg": 0.815,
            "mdn": 0.824,
            "var": 0.002,
            "std": 0.041
          }
        },
        {
          "uuid": "16c45077-3138-5a9a-9947-d9e54ea77e38",
          "provider": "S2",
          "acquisitionDate": "2025-05-13T10:37:03.661000+00:00",
          "cloudfree": 1,
          "value": {
            "index": "NDVI",
            "min": 0.642,
            "max": 0.856,
            "avg": 0.779,
            "mdn": 0.794,
            "var": 0.003,
            "std": 0.055
          }
        },
        {
          "uuid": "de9b6b8a-a195-5694-98a0-f17e8122855d",
          "provider": "S2",
          "acquisitionDate": "2025-05-11T10:47:17.500000+00:00",
          "cloudfree": "0.6363636363636364",
          "value": {
            "index": "NDVI",
            "min": 0.762,
            "max": 0.857,
            "avg": 0.826,
            "mdn": 0.83,
            "var": 0.001,
            "std": 0.029
          }
        },
        {
          "uuid": "917b3657-3ddc-5f43-b39f-5d8493282bde",
          "provider": "S2",
          "acquisitionDate": "2025-05-10T10:37:15.656000+00:00",
          "cloudfree": 1,
          "value": {
            "index": "NDVI",
            "min": 0.667,
            "max": 0.854,
            "avg": 0.79,
            "mdn": 0.802,
            "var": 0.002,
            "std": 0.048
          }
        },
        {
          "uuid": "3fc7ed30-677a-5430-a10b-3490d903616c",
          "provider": "L8",
          "acquisitionDate": "2025-05-12T10:21:17.302000+00:00",
          "cloudfree": 1,
          "value": {
            "index": "NDVI",
            "min": 0.746,
            "max": 0.87,
            "avg": 0.814,
            "mdn": 0.833,
            "var": 0.002,
            "std": 0.039
          }
        },
        {
          "uuid": "f3d1bd32-e3c8-5260-ba4c-d84c6a171986",
          "provider": "L9",
          "acquisitionDate": "2025-05-13T10:15:17.115000+00:00",
          "cloudfree": 1,
          "value": {
            "index": "NDVI",
            "min": 0.707,
            "max": 0.85,
            "avg": 0.795,
            "mdn": 0.813,
            "var": 0.002,
            "std": 0.05
          }
        }
      ]
    }
  }
}

Pavyzdys 3: MultiPolygon su NDVI S2/L8/L9 su intervalais per 5 dienų langą

Užklausti

užklausa GetSatelliteImageryDataByMultiPolygon {
  getSatelliteImageryDataByGeometry(
    input: {
      index: NDVI                # čia nustatykite indeksą
      providers: [S2, L8, L9]      # palydovų tiekėjai
      startDate: "2025-05-10T00:00:00.000Z"  # poligonams: pageidautina 10–15 dienų; 30s timeout
      endDate:   "2025-05-15T00:00:00.000Z"
      geojson: "{\"type\": \"MultiPolygon\", \"coordinates\":[ [ [ [ 8.09058546, 50.21774961 ], [ 8.09291004, 50.21836077 ], [ 8.09328559, 50.21844893 ], [ 8.09341412, 50.21777585 ], [ 8.09342329, 50.21768228 ], [ 8.09342736, 50.21748691 ], [ 8.09342239, 50.21741988 ], [ 8.09331503, 50.2169872 ], [ 8.09327725, 50.21680672 ], [ 8.0932114, 50.21679383 ], [ 8.09307662, 50.216784 ], [ 8.09268795, 50.21672443 ], [ 8.09256905, 50.21670175 ], [ 8.09160986, 50.21647789 ], [ 8.09153097, 50.21647138 ], [ 8.09144745, 50.216479 ], [ 8.09128792, 50.21653615 ], [ 8.09124139, 50.21654808 ], [ 8.09119362, 50.21655407 ], [ 8.09085379, 50.21653536 ], [ 8.09039423, 50.21649463 ], [ 8.09006609, 50.21646137 ], [ 8.08994025, 50.21644261 ], [ 8.08956206, 50.21636986 ], [ 8.08937343, 50.21632184 ], [ 8.08881276, 50.21616093 ], [ 8.08860924, 50.21608589 ], [ 8.08848952, 50.21605007 ], [ 8.08841856, 50.21616403 ], [ 8.08836721, 50.2162167 ], [ 8.08830625, 50.21626762 ], [ 8.08801583, 50.21648103 ], [ 8.08783363, 50.21660479 ], [ 8.08757577, 50.21677569 ], [ 8.08741435, 50.21686857 ], [ 8.08769592, 50.21696741 ], [ 8.08853411, 50.21720846 ], [ 8.08965086, 50.2174967 ], [ 8.09058546, 50.21774961 ] ] ] ]}"
      ranges: [
        [0.0, 0.5],
        [0.5, 0.55],
        [0.55, 0.6],
        [0.6, 0.65],
        [0.65, 0.7],
        [0.7, 0.75],
        [0.75, 0.8],
        [0.8, 0.85],
        [0.85, 0.9]
      ]
    }
  ) {
    geojson
    data {
      uuid
      provider
      acquisitionDate
      cloudfree     # 0..1
      value {       # statistika apskaičiuota tik ant be debesų pikselių
        indeksas
        min
        max
        avg
        mdn
        var
        std
      }
      ranges {
        reikšmė
        coverage   # 0..1
      }
    }
  }
}

Atsakymas

{
  "data": {
    "getSatelliteImageryDataByGeometry": {
      "geojson": "{\"type\":\"MultiPolygon\",\"coordinates\":[[[[8.09058546,50.21774961],[8.09291004,50.21836077],[8.09328559,50.21844893],[8.09341412,50.21777585],[8.09342329,50.21768228],[8.09342736,50.21748691],[8.09342239,50.21741988],[8.09331503,50.2169872],[8.09327725,50.21680672],[8.0932114,50.21679383],[8.09307662,50.216784],[8.09268795,50.21672443],[8.09256905,50.21670175],[8.09160986,50.21647789],[8.09153097,50.21647138],[8.09144745,50.216479],[8.09128792,50.21653615],[8.09124139,50.21654808],[8.09119362,50.21655407],[8.09085379,50.21653536],[8.09039423,50.21649463],[8.09006609,50.21646137],[8.08994025,50.21644261],[8.08956206,50.21636986],[8.08937343,50.21632184],[8.08881276,50.21616093],[8.08860924,50.21608589],[8.08848952,50.21605007],[8.08841856,50.21616403],[8.08836721,50.2162167],[8.08830625,50.21626762],[8.08801583,50.21648103],[8.08783363,50.21660479],[8.08757577,50.21677569],[8.08741435,50.21686857],[8.08769592,50.21696741],[8.08853411,50.21720846],[8.08965086,50.2174967],[8.09058546,50.21774961]]]]}\",
      "data": [
        {
          "uuid": "cf5d9e51-c0db-5e02-bf97-35c3e7a0fe07",
          "provider": "S2",
          "acquisitionDate": "2025-05-13T10:47:13.154000+00:00",
          "cloudfree": 1,
          "value": {
            "index": "NDVI",
            "min": 0.625,
            "max": 0.873,
            "avg": 0.795,
            "mdn": 0.808,
            "var": 0.003,
            "std": 0.051
          },
          "ranges": [
            { "value": [0, 0.5], "coverage": 0 },
            { "value": [0.5, 0.55], "coverage": 0 },
            { "value": [0.55, 0.6], "coverage": 0 },
            { "value": [0.6, 0.65], "coverage": 0.0089 },
            { "value": [0.65, 0.7], "coverage": 0.0514 },
            { "value": [0.7, 0.75], "coverage": 0.1288 },
            { "value": [0.75, 0.8], "coverage": 0.2603 },
            { "value": [0.8, 0.85], "coverage": 0.4575 },
            { "value": [0.85, 0.9], "coverage": 0.0932 }
          ]
        },
        {
          "uuid": "917b3657-3ddc-5f43-b39f-5d8493282bde",
          "provider": "S2",
          "acquisitionDate": "2025-05-10T10:37:15.656000+00:00",
          "cloudfree": 1,
          "value": {
            "index": "NDVI",
            "min": 0.585,
            "max": 0.854,
            "avg": 0.768,
            "mdn": 0.78,
            "var": 0.003,
            "std": 0.056
          },
          "ranges": [
            { "value": [0, 0.5], "coverage": 0 },
            { "value": [0.5, 0.55], "coverage": 0 },
            { "value": [0.55, 0.6], "coverage": 0.0014 },
            { "value": [0.6, 0.65], "coverage": 0.0342 },
            { "value": [0.65, 0.7], "coverage": 0.1205 },
            { "value": [0.7, 0.75], "coverage": 0.161 },
            { "value": [0.75, 0.8], "coverage": 0.3233 },
            { "value": [0.8, 0.85], "coverage": 0.3479 },
            { "value": [0.85, 0.9], "coverage": 0.0116 }
          ]
        },
        {
          "uuid": "16c45077-3138-5a9a-9947-d9e54ea77e38",
          "provider": "S2",
          "acquisitionDate": "2025-05-13T10:37:03.661000+00:00",
          "cloudfree": 1,
          "value": {
            "index": "NDVI",
            "min": 0.548,
            "max": 0.856,
            "avg": 0.756,
            "mdn": 0.769,
            "var": 0.004,
            "std": 0.061
          },
          "ranges": [
            { "value": [0, 0.5], "coverage": 0 },
            { "value": [0.5, 0.55], "coverage": 0.0021 },
            { "value": [0.55, 0.6], "coverage": 0.011 },
            { "value": [0.6, 0.65], "coverage": 0.05 },
            { "value": [0.65, 0.7], "coverage": 0.1198 },
            { "value": [0.7, 0.75], "coverage": 0.2231 },
            { "value": [0.75, 0.8], "coverage": 0.295 },
            { "value": [0.8, 0.85], "coverage": 0.295 },
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