At version 10.5, ArcGIS Server provides raster analytical capabilities out of the box, and it boosts raster processing performance by distributing it to the server. Tasks that previously took days or weeks now may only take hours.
The tools you'll use to perform raster analysis are hosted as a series of tasks in ArcGIS Image Server. To expose the tools to members of your Portal for ArcGIS, complete the steps in the Configure the portal to perform raster analysis section below.
Members of your portal will have no direct interaction with ArcGIS Image Server; they will only use the Portal for ArcGIS website or ArcGIS Pro to perform raster analysis.
To learn more about accessing and running the tools, see the Perform raster analytics section in the Portal for ArcGIS Help.
Steps to configure the portal to perform raster analysis
The raster analysis tools are hosted as a series of tasks in ArcGIS Image Server. For members of your organization to use these tasks to perform raster analysis in Portal for ArcGIS, you'll need to set up an ArcGIS Image Server for your portal. The server does the work of processing analytics requests, storing the results, and returning results to members in the Portal for ArcGIS website.
The following instructions may require changes to the way you've deployed ArcGIS in your organization; review them carefully before proceeding. To configure the portal to perform raster analysis, follow the steps below.
- Install ArcGIS Server .
- Authorize ArcGIS Server with the ArcGIS Image Server license.
- Log in to ArcGIS Server Manager and browse to Site > Data Stores. Register a new raster store.
The raster store is a location for output from raster analysis and should not be used as an input data directory.
- Federate your ArcGIS Server site with your portal.
- Choose your federated Image Server to act as your portal's Raster Analysis Server.
- Sign in to the portal website as an administrator and navigate to My Organization > Edit Settings > Servers.
- From the Raster Analysis section of the page, click the drop-down list and choose the server site that you have federated with the portal. If you have added multiple Image Server sites to your portal, only one can be designated as the Raster Analysis server.
- Click Save.
Configure raster analysis services (optional)
ArcGIS Image Server raster analysis services have a default processing capacity configuration. You may need to customize this configuration based on your hardware configuration. Log in to ArcGIS Server Manager and browse to the Services > System folder, where you can configure the following GIS services:
- To increase the processing speed and capacity, increase the maximum instance of the RasterProcessing service.
- To increase availability of the analytical results, increase the maximum instance of the RasterRendering service.
- To increase the number of processing tasks that can be executed concurrently, increase the maximum instance of the RasterAnalysisToolsservice.
About the raster analysis tools
There are many tool available to perform raster analysis:
- Calculate Density creates a density layer from point features by spreading known quantities of some phenomenon (represented as attributes of the points) across the raster. The result is a layer of areas classified from least dense to most dense.
- Classify categorizes your raster layer into logical categories.
- Convert Feature To Raster is used to convert a vector feature class into a raster layer.
- Convert Raster To Feature is used to convert a raster layer into a feature class.
- Copy Raster is used to create a copy of a raster layer. The new raster layer can be clipped, resampled, or reprojected.
- Create Viewshed determines the raster surface locations visible to a set of observer features.
- Generate Raster can employ any of the raster functions as raster analytic tools. You can use these to create processed raster datasets from functions and function chains.
- Interpolate Irregular Points To Raster is used to convert irregularly gridded point datasets or multidimensional datasets into raster surfaces.
- Summarize Raster Within summarizes a raster based on areas (zones) you define with another layer.
- Segment identifies features or segments in your imagery by grouping adjacent pixels together that have similar spectral characteristics.
- Train Classifier sets up your classification based on your classification algorithm and parameters.