> 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/dnk/api-dokumentation/geo-endpoints-til-adgang-til-spatiale-data/wms-hent-rasterbilleder-af-spatiale-datalag/11.-topographymap-hojde-i-absolutte-tal.md).

# 11. TopographyMap: højde i absolutte tal

TopographyMap indeholder følgende modeller: `digital højde, hillshade, hældning, eksponering, reliefposition, ruhed, ruggedhed`, og deres kombination. Fremstillingen er tilgængelig på markniveau nøjagtigt (ikke pixeleret) og beskåret efter grænsen. Topografiens kvalitet afhænger af markens placering og det bedst tilgængelige datasæt (USA, GB, EU og AU er dækket med LIDAR). TopographyMap kan opbygges ud fra maskindata som udbytte-/jordsensorer/tilførte datasæt, hvis de indeholder højdeattributter indeni. 

Markens topografi-relaterede datalag ligger i `feltet` -> `topographyMaps` -> `geoMaps` attribut. `geoKort` Hver `url`, farvekoder, klasser og lag-navne.

<figure><img src="https://1581835146-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FYICBELdyAXXebKAzfLOR%2Fuploads%2FkBBhURFR90kOC9tlXero%2Fimage.png?alt=media&amp;token=caa9d402-aee7-47e8-b5eb-e36085259656" alt="" width="563"><figcaption><p>LIDAR-højde</p></figcaption></figure>

<figure><img src="https://1581835146-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FYICBELdyAXXebKAzfLOR%2Fuploads%2Fe01cIvD7QPwzIBpAkLM6%2Fimage.png?alt=media&amp;token=40be0b28-6fab-477d-ab2f-4d8d2491f637" alt="" width="563"><figcaption><p>LIDAR-hældning</p></figcaption></figure>

<figure><img src="https://1581835146-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FYICBELdyAXXebKAzfLOR%2Fuploads%2Fm2MjuJAUohqKPFXNl4YJ%2Fimage.png?alt=media&amp;token=50130bed-164a-4af3-a451-2b9766af0d6f" alt="" width="563"><figcaption><p>LIDAR-reliefposition</p></figcaption></figure>

Forespørgselsformatet er [https://api.geopard.tech/geo/map/reflect?TRANSPARENT=true\&BBOX=\<minX,minY,maxX,maxY>\&LAYERS=elevation\_cropped,field\_view\&STYLES=dem\_elevation,crop\_boundary\&SRS=EPSG%3A900913\&WIDTH=512\&env=ve1:160.4%3Bve2:163.15%3Bve3:165.9%3Bve4:168.65%3Bve5:171.4\&VIEWPARAMS=uuid:\<field\_uuid>\&CQL\_FILTER=uuid=%27\<topography\_map\_uuid>%27%3Buuid=%27\<field\_uuid>%27\&geopardApiKey=\<geopard\_api\_key>](https://api.geopard.tech/geo/map/reflect?TRANSPARENT=true\&BBOX=). Hvor inputattributterne er:

1. `BBOX=<minX,minY,maxX,maxY>` indeholder begrænsningsboksen (url-kodet) for "Field" i EPSG:3857-projektion;
2. `STYLES=dem_elevation,crop_boundary` indeholder stilen for "TopographyMap"-entiteten som første attribut, dens understøttede værdier er:

`dem_aspect`

`dem_elevation`&#x20;

`dem_hillshade`

`dem_roughness`

`dem_slope`&#x20;

`dem _tpi`

`dem_tri`

3. `WIDTH=512` angiver outputbilledets størrelse i pixels (det præcise antal er kun vigtigt, hvis det bruges som miniature);
4. `env=ve1:160.4%3Bve2:163.15%3Bve3:165.9%3Bve4:168.65%3Bve5:171.4` afspejler intervallet af højdeværdier for den pågældende mark, detaljerne findes i "TopographyMap" -> "geoMaps" -> "classes" (BEMÆRK: %3B er url-kodet ; tegn);  &#x20;
5. `VIEWPARAMS=uuid:<field_uuid>` indeholder uuid for "Field";
6. `CQL_FILTER=uuid=%27<topography_map_uuid>%27%3Buuid=%27<field_uuid>%27` indeholder UUID'erne for "Field" og "TopographyMap" (BEMÆRK: %27 er url-kodet ‘ tegn) ;
7. `geopardApiKey=<geopard_api_key>` er koblet til autorisationsmuligheden via API-nøgle.


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