Exaggeartion surface AGOL web Scene

VojtěchBlažek — Wed, 16 Dec 2020 17:33:43 GMT

Hi I am wondering how to exaggerate surface like in ocean Storymap

Standalone webscene has no exaggeration - does anybody know why and how to reproduce this?

Or it is possible only thru StoryMap - but how?

Storymap (Conveyor belt) - exaggeration - https://apl.maps.arcgis.com/apps/MapJournal/index.html?appid=d629dd5cc3fe48ea9fc744dada861da0

SceneApp - no exaggeration - https://www.arcgis.com/home/webscene/viewer.html?webscene=f4a00a9b8b2846a8af9cc45e5742d8d9

I've already asked in Czech Geocommunity and found some threads but with no solution, but in SM is working.

Any advice or idea how to do it? Thanks a lot

Re: Exaggeartion surface AGOL web Scene

Anonymous User — Tue, 23 Mar 2021 04:21:45 GMT

Hi Vojtech, you probably need to add a custom elevation source to your web scene.

If you're creating a 3D scene which is gong to show both - elevation above sea level (on land) and below sea level (or underwater - i.e. a river) you might need to have two elevation surfaces.

As far as I can see, the scene in the story map scene is using this:

Bathymetry: https://elevation3d.arcgis.com/arcgis/rest/services/WorldElevation3D/TopoBathy3D/ImageServer

DEM : https://elevation3d.arcgis.com/arcgis/rest/services/WorldElevation3D/Terrain3D/ImageServer

If you want a custom exaggeration applied to the bathymetry surface, you might need to have your own bathymetry surface (unless I missed something and you can now do some basic pixel calculations in a tile layer in AGOL; haven't done this in a while).

In the past, when I was creating web scenes that included underwater areas (i.e. river estuaries and seabed), i was creating a DEM from point bathymetry, then to exaggerate it I was simply using Raster Calculator in Spatial Analyst (i.e. cell value times 10: https://pro.arcgis.com/en/pro-app/latest/tool-reference/spatial-analyst/raster-calculator.htm). Then I was publishing the resulting layer as a tile package with AGOL elevation scheme to my ArcGIS Online account and adding it to a 3D web scene as elevation source ( https://support.esri.com/en/technical-article/000014615#:~:text=Run%20the%20Share%20Package%20tool,as%20an%20elevation%20tile%20layer).

Also, I think you need to work with the local 3D scene in AGOL to achieve this. Hope you'll find something useful in the above notes.

topic Exaggeartion surface AGOL web Scene in 3D Mapping Questions

Exaggeartion surface AGOL web Scene

Re: Exaggeartion surface AGOL web Scene