> For the complete documentation index, see [llms.txt](https://docs.geopard.tech/geopard-tutorials/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.geopard.tech/geopard-tutorials/lva/api-dokumentacija/geo-galapunkti-telpisko-datu-piekluvei/wms-sanemt-telpisko-datu-slanu-rastra-attelus/16.-satelitattels-apgriezts-pec-lauka-robezas.md). # 16. Satelītattēls: apgriezts pēc lauka robežas Precīzs (ne pikselēts) Satelīta attēla griezums, kas balstīts uz noteikto lauka robežu, ir pieejams dažādos skatos, piemēram, `RGB, NIR, EVI2, LAI, NDVI, GNDVI, IPVI, GCI, SAVI, OSAVI, NDWI, WDRVI, NDMI, MCARI`, utt. Katrs SatelliteImage satur `geoMaps` objektu, kas ietver renderēšanas detaļas, piemēram, `url`, krāsu kodus, klases un nosaukumu. Šīs detaļas atrodas `lauks` -> `satelliteImages` -> `geoMaps` atribūts. The `url` konkrēti tiek izmantots, lai parādītu kartes kā WMS slāni. Lai ilustrētu, zemāk ir sniegti izvades paraugi NIR un WDRVI skatiem. ### Tuvu infrasarkanā (NIR), WDRVI un WDRVI kontrasts ![NIR](https://1923267647-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FYICBELdyAXXebKAzfLOR%2Fuploads%2FBO5IUPWygVgPKpMAsela%2Fimage.png?alt=media\&token=23504b6c-df7c-460e-b1cd-b184fe86c575) ![WDRVI](https://1923267647-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FYICBELdyAXXebKAzfLOR%2Fuploads%2FWWNyxHuZj4eEkSrUPEN1%2Fimage.png?alt=media\&token=8cccb814-3eb8-4b55-b1eb-ff0609091f68) ![WDRVI Contrast](https://1923267647-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FYICBELdyAXXebKAzfLOR%2Fuploads%2F7f0VDnbb4I5kiw7OdDg5%2Fimage.png?alt=media\&token=1ccffb9a-88b3-431b-9c8d-703cb784a5e6) Pieprasījuma formāts ir [https://api.geopard.tech/geo/map/reflect?TRANSPARENT=true\&VIEWPARAMS=uuid:\\&TIME=2020-07-22T17%3A50%3A22Z\&BBOX=\\&LAYERS=sentinel2\_wdrvi\_and\_field\&SRS=EPSG%3A900913\&WIDTH=512\&geopardApiKey=\](https://api.geopard.tech/geo/map/reflect?TRANSPARENT=true\&VIEWPARAMS=uuid:). ### URL parametru skaidrojums Kur ievades atribūti ir: 1. `VIEWPARAMS=uuid:` satur `uuid` no "Lauks"; 2. `TIME=2020-07-22T17%3A50%3A22Z` ir satelīta attēla datu formāts YYYY-MM-DDThh:mm:ssZ (URL kodēts) un atrodas entitātē "FieldSatelliteImagery" ar `acquisitionDate` atribūtu; 3. `BBOX=` satur lauka robežkasti (URL kodēta) EPSG:3857 projekcijā; 4. `WIDTH=512` atspoguļo izejas attēla izmēru pikseļos (precīzs skaitlis ir svarīgs tikai tad, ja tas tiek izmantots kā sīktēls); 5. `geopardApiKey=` ir saistīts ar autorizācijas opciju, izmantojot API atslēgu; 6. `LAYERS=sentinel2_wdrvi_and_field` atspoguļo stilu, nodrošinātāja atribūts atrodas entitātē "FieldSatelliteImagery". Pieejamās Sentinel2 (`S2`) attēlojuma iespējas `LAYERS` ir: `sentinel2_ndvi_and_field` `sentinel2_evi2_and_field` `sentinel2_rgb_and_field` `sentinel2_gci_and_field` `sentinel2_lai_and_field` `sentinel2_nir_and_field` `sentinel2_osavi_and_field` `Sentinel2_wdrvi_and_field` pieejamās iespējas Landsat8 (`L8, L9`) attēlojuma iespējas `LAYERS` ir: `landsat8_ndvi_and_field` `landsat8_evi2_and_field` `landsat8_rgb_and_field` `landsat8_gci_and_field` `landsat8_lai_and_field` `landsat8_nir_and_field` `landsat8_osavi_and_field` `landsat8_wdrvi_and_field` pieejamās iespējas Landsat4-7 (`L4, L5, L6, L7`) attēlojuma iespējas `LAYERS` ir: `landsat4-7_ndvi_and_field` `landsat4-7_evi2_and_field` `landsat4-7_rgb_and_field` `Landsat4-7_gci_and_field` `landsat4-7_lai_and_field` `landsat4-7_nir_and_field` `landsat4-7_osavi_and_field` `landsat4-7_wdrvi_and_field`
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