topic Getting modified picture in MediaLayer in ArcGIS JavaScript Maps SDK Questions

Getting modified picture in MediaLayer

DominikS — Wed, 13 Dec 2023 11:15:22 GMT

Hi all,

I've played around with the new MediaLayer (check API and examples) - great tool and exactly what I was looking for 🙂

My question is: Is there any official or unofficial option to get the modified, georeferenced picture? I've checked the MediaLayers source attribute, which includes to image data, but as far as I can see only the original image is available. Is there anything I've missed?

Re: Getting modified picture in MediaLayer

Sage_Wall — Wed, 13 Dec 2023 14:33:39 GMT

Hi @DominikS , Not at this time, but we do have an internal issue to enable saving a georeferenced MediaLayer as a portal item, and that should be available for this upcoming 4.29 release. We also have another issue to explore exporting the MediaLayer as a georeferenced image but that one hasn't been assigned a release to date.

Re: Getting modified picture in MediaLayer

DominikS — Wed, 13 Dec 2023 14:45:46 GMT

Hey @Sage_Wall ,

Thanks for the information ❤️ A follow-up question: Will the new option, available in 4.29, create a HostedFeatureService within portal? Do you have any clue, whether the Portal-Item will have an export option for the georeferenec picture? If needed, I would accept the extra step going to the portal...

Do you have any additional information, how the georeferenced picture is stored? Is it internally passed to the esri-map canvas?

All the best 🙂

Re: Getting modified picture in MediaLayer

Sage_Wall — Wed, 13 Dec 2023 16:05:52 GMT

Currently, the only way to save a media layer is within the web map itself. The web map stores the media as a resource and adds properties in the web map json for its placement and other properties. The full details of the spec can be found at this link

https://developers.arcgis.com/web-map-specification/objects/mediaLayer/

At the February update to AGOL and 4.29 API release, we plan to release the ability to save the media layer as a new independent portal item outside the web map. This will allow users to create a new map and add the saved media layer. The API will be simple, adding a save() and saveAs() method to the MediaLayer class.

There won't be a way to export the image as something like a GeoTIFF from the Portal or ArcGIS Online until we have an opportunity to implement the export functionality in the API. For now, and the short term future, that's still a desktop workflow.
https://support.esri.com/en-us/knowledge-base/how-to-export-to-geotiff-with-arcgis-pro-000028392

Probably not the answer you wanted, but I hope the additional info helps.

Re: Getting modified picture in MediaLayer

DominikS — Thu, 14 Dec 2023 12:49:12 GMT

Hi @Sage_Wall

Thanks so much for the added information and clarification. Although the answer is not what I was hoping for, it's great to have a detailed roadmap. I will have an eye on this topic - it would be great to have this functionality in the JavaScript API 🙂

In the meanwhile I will try to implement a workaround using the map.view.takeScreenshot() function.

Thanks again!