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Heat Map layer overlay issue with ArcGIS Online

AlessandroValra

Don't know if it happened to someone else, but I recently tried the heat map functionality in AGOL to style a point layer in a web map, but the result is always in background with respect to the other layers, although it is the uppermost in the TOC. Any idea why this is happening?

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Accepted answers

Anonymous User

Hi Alessandro,

By design, feature layers are always displayed on top of heat maps. It is not possible to move a heat map above other features layers in the ArcGIS Online map viewer. An alternative is to create a tile package for the feature layers in ArcMap/Pro and publish the tile layer to ArcGIS Online. Once published, open the tile layer and the heat map in a map viewer and it will display on top of the tile layer.

Using tile packages for publishing hosted tile layers

FAQ: Is it possible to draw a heat map on top of other feature layers in ArcGIS Online?

There is currently an enhancement for the documentation to be updated to reflect that this is by design. ENH-000090365: Update ArcGIS Online Help (for ‘Change Style’ subheading: Heat map) to reflect the known limitation when using heat map symbology. This symbology will automatically appear under all other layers regardless of the layer order in the map contents.

Please let me know if you have any questions.

Best,

Luba

All comments

Anonymous User

Hi Alessandro,

Using tile packages for publishing hosted tile layers

FAQ: Is it possible to draw a heat map on top of other feature layers in ArcGIS Online?

Please let me know if you have any questions.

Best,

Luba

MikeVolz

Luba:

Are there any script examples to update the hosted tile layers as this data could be constantly changing and you would want to automate this task? The speed of rendering these layers and their proper placement in the TOC would make them more much advantageous than a feature layer, even though there is more maintenance involved.

Anonymous User

Hi Michael,

I'm not sure if I understand correctly. Are you asking if there's a way to update the Tile Layer Service on ArcGIS as in over writing the service?

Here is an IDEAS page:

Overwrite existing Tile Layer Service on ArcGIS Online

Kelly mentions in the comments about a proof of concept script for automating updating a tile package

http://cloudygis.maps.arcgis.com/home/item.html?id=d829e15ca7d840f29b1a1d8d2e8b7ac7

Let me know if this is what you are looking for.

Best,

Luba

AlessandroValra

Thank you, it is clear now.

One question: do I need to import the web feature layer of the heat map published on AGOL in ArcMap, make it a tile packageand do the rest of what you said?

Because, as far as I know, it is not possible to produce a heat map layer in ArcMap, am I wrong?

Thanks for your feedback.

AlessandroValra

Apparently, I cannot import the hosted heat map layer in ArcMap preserving the symbology. The point layer is symbolized as a unique value. So it seems I have to do it in ArcMap, but I don't know how.

Luba Hristova‌ is there a way to do it in ArcMap and then do what you suggest to have it published to AGOL and be able to have it drawn on top of the other layers?

Thanks.

Anonymous User

Hi Alessandro,

Yes there is a way to do it and that would be by using any of the tools from the Spatial Analyst toolbox stated in this article:

FAQ: How can a heat map be created in ArcMap?

However, I just did a quick test by:

1: Creating hot spots in ArcGIS Online

2:Connecting to my hosted services in ArcMap

3:Pulling my hot spot map in ArcMap

The symbology preserved and stayed the same as it was in ArcGIS Online, are you not getting the same outcome?

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