> 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/svn/dokumentacija-api/geo-koncne-tocke-za-dostop-do-prostorskih-podatkov/wms-pridobi-rastrske-slike-prostorskih-podatkovnih-plasti/17.-satelitska-slika-obrezana-po-meji-polja-in-barvni-shemi-po-meri.md).

# 17. Satelitska slika: obrezana po meji polja in barvni shemi po meri

Satelitska slika, natančno izrezana glede na določene meje polja, je na voljo za različne poglede, kot so `RGB`, `NIR`, `EVI2`, `LAI`, `NDVI`, `GNDVI`, `IPVI`, `GCI`, `SAVI`, `OSAVI`, `NDWI`, `WDRVI`, `NDMI`, `MCARI`, itd. vključno s pripadajočimi predstavitvami kontrasta. Izhodne satelitske slike niso pikselizirane in zagotavljajo jasno vizualizacijo podatkov.

Poleg tega natančnega izreza GeoPard omogoča prilagoditev barvnih shem. Ta funkcija se lahko uporabi tako za **izrezane** in **kontrastne** predstavitve vegetacijskih indeksov, kar nudi dodatno vsestranskost pri vizualizaciji podatkov.

{% hint style="info" %}
Na primer, nova barvna shema se lahko neposredno uporabi z razširitvijo `env` spremenljivke z `c1:%231b7837%3Bc2:%23ffffbf%3Bc3:%23af8dc3`. V tej vrednosti `%23` predstavlja `#` simbol, in `%3b` pomeni `;` simbol.
{% endhint %}

Podano je več primerov za ponazoritev prilagoditve barvnih shem tako za **izrezane** in **kontrastne** NDVI poglede, ki prikazujejo prilagodljivost naših funkcij za nastavljanje barv.

{% hint style="info" %}
Koeficient `povezave (urls)` priložene spodaj so namenjene izključno razlagalnim namenom. \
\
Za natančno in operativno uporabo naj bodo `povezave (urls)` vzete iz `geoMaps` objekta. Lahko jih spremenite z uporabo določenih atributov, kar ponuja nadaljnjo prilagodljivost pri upravljanju geoprostornih podatkov.
{% endhint %}

### NDVI: kontrast PROTI kontrastu s popravljeno barvno shemo

![](https://29491374-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FYICBELdyAXXebKAzfLOR%2Fuploads%2FTrBnAOb6tKHGvpAvdItI%2Fimage.png?alt=media\&token=48aad294-e617-466b-9ddf-bef72f0dd6c6)   **PROTI**   ![](https://29491374-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FYICBELdyAXXebKAzfLOR%2Fuploads%2FTkx9pmhPfVkMIDcYC2N6%2Fimage.png?alt=media\&token=00548ae6-e1fd-4ee7-8030-941a2fada91c)

Zahteva je v formatu [https://api.geopard.tech/geo/map/reflect?TRANSPARENT=true\&SRS=EPSG:900913\&HEIGHT=1024\&BBOX=\<minX,minY,maxX,maxY>\&TIME=2022-07-20T10:15:26Z\&CQL\_FILTER=uuid=%27\<planet\_image\_uuid>%27\&VIEWPARAMS=uuid:\<field\_uuid>\&env=v1:0.740%3Bv2:0.835%3Bv3:0.904%3Bc1:%23af8dc3%3Bc2:%23ffffbf%3Bc3:%231b7837\&LAYERS=agri:planetscope\_ndvi\_and\_field\&geopardApiKey=\<geopardApiKey>](https://api.geopard.tech/geo/map/reflect?TRANSPARENT=true\&SRS=EPSG:900913\&HEIGHT=1024\&BBOX=<minX,minY,maxX,maxY>\&TIME=2022-07-20T10:15:26Z\&CQL_FILTER=uuid=%27<planet_image_uuid>%27\&VIEWPARAMS=uuid:<field_uuid>\&env=v1:0.740%3Bv2:0.835%3Bv3:0.904%3Bc1:%23af8dc3%3Bc2:%23ffffbf%3Bc3:%231b7837\&LAYERS=agri:planetscope_ndvi_and_field\&geopardApiKey=<geopardApiKey>).&#x20;

### NDVI: original PROTI original s popravljeno barvno shemo

![](https://29491374-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FYICBELdyAXXebKAzfLOR%2Fuploads%2F19yzj4Ewj09TvtCaK86q%2Fimage.png?alt=media\&token=7631c9bd-0b0e-47b4-8df8-cbd629755e1a)   **PROTI**   ![](https://29491374-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FYICBELdyAXXebKAzfLOR%2Fuploads%2FtY8ev43dfI0rYlGQFhcH%2Fimage.png?alt=media\&token=12f6bf7e-a049-45ec-9e32-7e1abe573c08)

Zahteva je v formatu [https://api.geopard.tech/geo/map/reflect?TRANSPARENT=true\&SRS=EPSG:900913\&HEIGHT=1024\&BBOX=\<minX,minY,maxX,maxY>\&TIME=2022-07-20T10:15:26Z\&CQL\_FILTER=uuid=%27\<planet\_image\_uuid>%27\&VIEWPARAMS=uuid:\<field\_uuid>\&LAYERS=agri:planetscope\_ndvi\_and\_field\&env=c1:%23008837%3Bc2:%23a6dba0%3Bc3:%23f7f7f7%3Bc4:%23c2a5cf%3Bc5:%237b3294\&geopardApiKey=\<geopardApiKey>](https://api.geopard.tech/geo/map/reflect?TRANSPARENT=true\&SRS=EPSG:900913\&HEIGHT=1024\&BBOX=<minX,minY,maxX,maxY>\&TIME=2022-07-20T10:15:26Z\&CQL_FILTER=uuid=%27<planet_image_uuid>%27\&VIEWPARAMS=uuid:<field_uuid>\&LAYERS=agri:planetscope_ndvi_and_field\&env=c1:%23008837%3Bc2:%23a6dba0%3Bc3:%23f7f7f7%3Bc4:%23c2a5cf%3Bc5:%237b3294\&geopardApiKey=<geopardApiKey>).

### Pojasnilo parametrov URL

Kjer so vstopni atributi:

1. `VIEWPARAMS=uuid:<field_uuid>` vsebuje uuid "Polja";
2. `CQL_FILTER=uuid=%27<planet_image_uuid>%27` vsebuje uuid satelitske slike, ki jo zagotavlja Planet; ta parameter ni potreben za ponudnike Sentinel2 in Landsat;
3. `TIME=2022-07-20T10:15:26Z` vsebuje datum satelitske slike v formatu `YYYY-MM-DDThh:mm:ssZ` (url kodirano) in se nahaja v entiteti "FieldSatelliteImagery" z `acquisitionDate` atributom;
4. `BBOX=<minX,minY,maxX,maxY>` vsebuje omejitveni okvir (url kodiran) "Polja" v `EPSG:3857` ali `EPSG:900913` projekciji;
5. `WIDTH=1024`  odseva izhodno velikost slike v piksljih (natančno število je pomembno le, če se uporablja kot sličica);
6. `geopardApiKey=<geopard_api_key>` je povezan z možnostjo avtorizacije preko API ključa;
7. `LAYERS=agri:planetscope_ndvi_and_field` odseva slog za satelitsko sliko, ki jo zagotavlja Planet; ta parameter je odvisen od ponudnika, kot sta Sentinel2 in Landsat.

<br>


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