Available with Standard or Advanced license.
Raster analysis settings are additional parameters that affect the output created when submitting a raster function template to a portal for processing. They differ from normal tool parameters in that they don't appear on the function Parameters tab; rather, they are values you set on the Settings tab during the Output Generation step. Once you set these output settings, they are interrogated and used by the raster function template or function chain when they are run. These settings help ensure consistency, and that processing is performed according to well-defined standards that control the parameters of your project, such as defining the geographic processing extent, the coordinate system for all outputs, or the cell size of output web image layers.
Specify raster analysis settings for each portal job on the Settings tab of the Output Generation page.
Settings are not maintained between jobs.
When specifying Intersection of Inputs as your processing extent, it is possible that none of the features or cells overlap and that a null extent (zero width and height) may result. In such cases, no features or cells will be processed.
The Extent setting defines which rasters will be processed by a tool. It is useful when you need to process only a portion of a larger dataset. You can think of this setting as a rectangle used to select input features and rasters for processing. The extent of the output dataset will typically be larger than the Extent setting to account for features or cells that pass through the extent rectangle.
The Snap Raster setting is used to snap or align an extent during execution. The lower left corner of the extent is snapped to a cell corner of the snap raster and the upper right corner is adjusted using the output cell size. As a result, when the output cell size is the same as the snap raster cell size, the cells in the output raster are aligned with the cells of the snap raster.
Output Coordinate System
Specify the output coordinate system of web image layers created by raster analysis on Portal for ArcGIS.
If you do not set the Output Coordinate System, the spatial reference of the output web layer will be the same spatial reference as the input raster.
The output extent setting will only process features or rasters that fall within the specified extent.
The Snap Raster setting will adjust the extent of the output web image layer so that they match the cell alignment of the specified snap raster. The raster used for snapping must be a web image layer.
You can specify the Snap Raster in two ways:
Sets the output raster cell size, or resolution.
The default is Maximum of Inputs.
Resampling is the process of interpolating the cell values while transforming your raster dataset. This is used when the input and output do not line up exactly, the cell size changes, the data is shifted, or a combination of these. There are three resampling methods to choose from when creating the output: