topic Re: Web App Builder - Configure Basemap Gallery - spatial reference in ArcGIS Web AppBuilder Questions

Web App Builder - Configure Basemap Gallery - spatial reference

AndySchmidt — Fri, 03 Mar 2017 14:36:43 GMT

In ArcGIS online Web App Builder in the Configure Basemap Gallery I get a spatial reference error when adding a pass through service for a basemap "The basemap you are adding has a different spatial reference from the current map" Previous maps/web apps built using web app builder display the services but I cannot create new base map services to new web apps. The projections are the same. Has anyone found a workaround or is this a bug with the recent update to ArcGIS Online.

Re: Web App Builder - Configure Basemap Gallery - spatial reference

RobertScheitlin__GISP — Fri, 03 Mar 2017 15:03:36 GMT

Andy,

You are saying the projections are the same. Are the cache schemas (i.e the scales the tile layers are cached at the same)?

From the whats new:

Unsupported basemaps with different tiling schemas from the current basemap are now excluded from the Basemap Gallery widget.

Re: Web App Builder - Configure Basemap Gallery - spatial reference

JosephineBailey — Thu, 23 Mar 2017 22:09:42 GMT

I'm having the same problem - the basemaps I'm trying to add to the Basemap Callery in the Configure Basemap Gallery Widget says it's a different projection for the WMTS in fact they are the same -is there a fix?

Re: Web App Builder - Configure Basemap Gallery - spatial reference

DavidColey — Thu, 30 Mar 2017 13:54:14 GMT

Yeah it's really unfortunate at this release. Prior to 2.4, I was able to inter-layer both dynamic and tiled services to build a custom image and reference layer basemap. That was a huge resource saver for us because I didn't have to cache my image service - at 4" resolution that takes alot of space. The only fix will be for esri to re-code the base widget I guess

Re: Web App Builder - Configure Basemap Gallery - spatial reference

KenBuja — Thu, 30 Mar 2017 14:07:06 GMT

I've come across this also with an ImageService: Cannot add a custom basemap to the Basemap Gallery

There is a workaround in the meantime:

1. ArcGIS.com > My Content > Add Item from web > paste https://seamlessrnc.nauticalcharts.noaa.gov/arcgis/rest/services/RNC/NOAA_RNC/ImageServer
2. Add item to map and save as a webmap
3. Create a custom basemap group and share that item and webmap to that group
4. In My Organization > Edit Settings > Map > Basemap Gallery > point to the custom basemap group.
- This will make the map as part of the default basemap gallery.
5. In WAB > Widget > Basemap > check on 'Always synchronize with the Basemap Gallery setting of the Organization'
6. In App in WAB > Basemap Widget > Can see and choose the NOAA_RNC as the basemap.

Re: Web App Builder - Configure Basemap Gallery - spatial reference

DavidColey — Thu, 30 Mar 2017 16:32:36 GMT

Hey Ken, yeah great idea, totally works. Nice solution!

Re: Web App Builder - Configure Basemap Gallery - spatial reference

KipoKipo — Wed, 14 Jun 2017 15:43:10 GMT

Is there fix for this BUG? I am having the same problem. The basemaps I am trying to add to the organization basemap group has the same projection with the web map. Unfortunately the workaround Ken mentioned (making web map and shared in the default basemap gallery group ) doesn't work for me -- I can't add the service URL into a basemap in the first place.

Rob what doesn't the "different tiling schemas" mean in the "whats new"? Is it different from the ESRI basemaps? or different from its original tiling schema if migrating from an older version cache.

Thanks!

Re: Web App Builder - Configure Basemap Gallery - spatial reference

RobertScheitlin__GISP — Wed, 14 Jun 2017 15:46:52 GMT

KP,

If it is different from the Esri basemap tiling scheme then it will not allow you to add it.

Re: Web App Builder - Configure Basemap Gallery - spatial reference

KipoKipo — Wed, 14 Jun 2017 17:21:19 GMT

Thanks Rob! This is new to us when we are trying to migrate to the newer version of ArcGIS server.

So what I do is publishing the service using ArcGIS online/Bing... schema and select scales I'd like. It will warn when my projection isn't WGS 84 Web Mercator.

It then will allow me to add the published services to Basemap Gallery.

Thanks!

Re: Web App Builder - Configure Basemap Gallery - spatial reference

Mark_ — Tue, 23 Jan 2018 16:44:32 GMT

I attempted the workaround with no success. Is this still working for anyone else?

Re: Web App Builder - Configure Basemap Gallery - spatial reference

DavidColey — Tue, 23 Jan 2018 17:12:38 GMT

Hi Mark, what exactly is your issue? This method remains solid.

Re: Web App Builder - Configure Basemap Gallery - spatial reference

Mark_ — Tue, 23 Jan 2018 18:15:38 GMT

Maybe I'm missing something. I am adding an image service to a webmap as a layer then saving and sharing. The webmap now appears as an option in the basemap widget. The problem is that the image service layer seems to be ignored. Only the basemap of the webmap is being displayed.

Re: Web App Builder - Configure Basemap Gallery - spatial reference

DavidColey — Tue, 23 Jan 2018 20:25:06 GMT

Is the image service in the same WebMercator projection as the ArcGIS Online basemaps?

Re: Web App Builder - Configure Basemap Gallery - spatial reference

Mark_ — Tue, 23 Jan 2018 20:32:37 GMT

It is not. I understand now that this workaround is for differing tiling schemes, not projections. That's disappointing.

Re: Web App Builder - Configure Basemap Gallery - spatial reference

DavidColey — Tue, 23 Jan 2018 21:25:47 GMT

Yes, initially it was. I have to serve a web mercator projected image service and then a local street reference layer also in web mercator. I can then add those on top of the world imagery service and save that as my image basemap. It can then participate in my custom gallery with world topo and streets, human geography etc. Everything shows up as expected in the WAB basemap gallery. For local Collector work like utility data that has to stay in state plane, I use a local state plane basemap, and then I just use a state plane projected image service as a layer. It's all basically on auto-pilot at this point though.

Re: Web App Builder - Configure Basemap Gallery - spatial reference

Mark_ — Tue, 23 Jan 2018 21:32:18 GMT

Thanks for the explanation. I was attempting to include a state plan projected image service as a basemap option with a few of ESRI's. I can do this without issue in AGOL webmaps and ArcGIS Explorer for iOS. It's annoying that we can't do the same in WAB.

Re: Web App Builder - Configure Basemap Gallery - spatial reference

DavidColey — Tue, 23 Jan 2018 21:46:11 GMT

Maybe, but I'd be careful about mixing basemap projections in a custom gallery. I can tell you that for our utility field editors we disabled access to the custom gallery because their edits would not post due to the fact that the utility layers participate in a geometric network and so can only work in state plane. We can't have them jumping back and forth between projections in this case.

Re: Web App Builder - Configure Basemap Gallery - spatial reference

CCGISCOOP — Mon, 28 Jan 2019 16:50:56 GMT

So the moral of the story is this - even if ALL your data and ALL your imagery is all in the same projection (in my case State Plane) if I want to use my imagery in the AGOL WAB basemap widget I need to republish those services using the Web Mercator projection EVEN IF I DON'T WANT TO USE ESRI BASEMAPS... that's my understanding, is that correct? Why don't I have to republish my other services then as well (the non-imagery services)? (I don't want to, I'm just trying to understand.) It used to be so simple to create these applications, this imagery thing is kind of throwing a wrench in it.

(Just so it's clear, all my data is in the same projection and I am not using caching on any service - imagery or otherwise.)

Re: Web App Builder - Configure Basemap Gallery - spatial reference

KarinaLivingston — Thu, 27 Aug 2020 13:51:37 GMT

I'm having a similar issue. I followed all the workaround steps and I can now see my custom basemap in the gallery (we published as WGS84) but when we select it in WAB it draws on top of our utility layers. This happens when I make the custom basemap the reference layer on the web map but when I don't it is ignored. Does anyone have a suggestion or ran into this before?

Re: Web App Builder - Configure Basemap Gallery - spatial reference

DavidColey — Fri, 28 Aug 2020 17:20:29 GMT

All I know is any layer in your basemap set as a reference layer will draw on top of any of your feature layers, map services, etc in the map. That's by design and I think the only thing to do is not set as reference.