You can take greater advantage of your existing web-based resources by publishing hosted layers from web feature layers. This is especially important for data that is accessible only through web feature services, such as data in spatiotemporal big data stores. For example, publishing a hosted map image layer from a web feature layer allows you to achieve benefits such as the following:
- Faster drawing time because processing is done by the server, not the client machine
- Use of advanced visualization methods not supported by web feature layers
- Editing of the hosted map image layer through editing of the web feature layer
Currently, hosted map image layers are the only type of web layer that can be published from a web feature layer in ArcGIS Pro.
Publishing hosted layers from web feature layers also gives you more control over the flow of data from the desktop to the web. As your portal becomes an authoritative data repository, you can share layers from desktop-based data less frequently. Once a feature layer has been shared to the web, it can be a primary source for the creation of data products. You can publish as many hosted map image layers as you want from the same web feature layer.
The following conditions must be met to publish a hosted map image layer from a web feature layer:
- Your active portal is ArcGIS Enterprise 10.8 or later.
- You have the privilege to publish hosted tile layers.
- You are the owner of the web feature layer.
- The web feature layer is a hosted feature layer, not a layer that references registered data.
This workflow can be followed from the ArcGIS Pro user interface only. It can't be accomplished with a Python script.
Publish a hosted map image layer from a web feature layer using the default configuration
- Browse to a hosted web feature layer in your portal content in one of two ways:
- In the Catalog pane, click the Portal tab and click the My Content tab under it.
- On the ribbon, on the Map tab, in the Layer group, click Add Data. In the Add Data file browser, under Portal , click My Content .
- Add a hosted web feature layer or hosted spatiotemporal web feature layer to a map.
- Symbolize the layer as desired.
For example, you may want to use symbology, such as dot density or charts, that is supported by map image layers but not by web feature layers.
- Right-click the layer name, point to Sharing, and click Publish Layer From Feature Layer.
If the layer contains multiple sublayers, the Publish Layer From Feature Layer command is accessed from a sublayer. To publish more than one sublayer, press the Ctrl key while clicking the desired sublayers. To publish all sublayers, select them in this way, or click the List By Data Source tab at the top of the Contents pane. Right-click the hosted feature service name, and click Publish Layer From Feature Layer.
- Under Item Details, provide a name for the web layer.
- Complete the Summary and Tags fields.
Under Type, the web layer type is a map image layer. The name of the source data (the hosted web feature layer) appears under the layer type.
- Under Location, use the Folder menu to choose a folder in your portal content in which to store the web layer. Optionally create a folder.
By default, the web layer is stored in the same folder as the web feature layer.
Click the Browse button to browse to a folder in your portal content. You can also type a folder name in the text box.
- Under Share with, specify how the web layer will be shared:
- Everyone—This option makes your content public. Anyone can access and see it.
- My Organization—This option allows your content to be shared with all authenticated users in the organization.
- Groups—This option allows your content to be shared with groups to which you belong and their members.
- Under Finish Sharing, click Analyze to check for problems.
Errors and warnings are listed on the Messages tab. Right-click a message to open its help topic or take corrective action in the software. Errors must be resolved before you can share the web layer. Resolving warnings is recommended but not required.
- After you have resolved errors, and optionally resolved warnings, click Publish to share the web layer.
- Optionally click Jobs to monitor the job status.
- When the web layer is successfully published, click the Manage the web layer link at the bottom of the pane to access the web layer in your portal.
Configure the hosted map image layer
The steps to configure a hosted map image layer are the same as when you configure a map image layer. However, configurable properties for hosted map image layers have the following limitations:
- Additional layers and capabilities, such as WMS, WFS, KML, and custom SOEs, are not available.
- The hosted map image layer must be drawn dynamically; it cannot be cached.
- Date field settings are not enabled because dates in the web feature layer have already been converted to UTC (coordinated universal time).
- The Configure Pooling tab is not available.
Overwrite the hosted map image layer
A hosted map image layer cannot be overwritten.
A web feature layer that has been used to publish hosted map image layers cannot be overwritten or deleted unless its dependent map image layer or layers are deleted first.
Considerations when sharing to older portals
Hosted map image layers can only be published from web feature layers with ArcGIS Enterprise 10.8 or later.