The Extraction tools allow you to extract a subset of cells from a raster by either the cells' attributes or their spatial location. You can also obtain the cell values for specific locations as an attribute in a point feature class or as a table.
The tools that extract cell values based on their attribute or location to a new raster include the following:
Extracting cells by attribute value (Extract by Attributes) is accomplished through a where clause. For example, your analysis may require an extraction of cells higher than 100 meters in elevation from an elevation raster.
Extracting cells by the geometry of their spatial location requires that groups of cells meeting a criteria of falling within or outside a specified geometric shape (Extract by Circle, Extract by Polygon, Extract by Rectangle).
Extracting cells by specific locations requires that you identify those locations either by their x,y point locations (Extract by Points) or through cells identified using a mask raster (Extract by Mask).
The tools that allow you to specify the locations for which to extract cell values to an attribute table or a regular table include the following:
Cell values identified by a point feature class can be recorded as an attribute of a new output feature class (Extract Values to Points). This will only extract the values from one input raster.
Cell values identified by a point feature class can be appended to the attribute table of that feature class (Extract Multi Values to Points). Cell values from multiple rasters can also be identified.
The cell values for identified locations (both raster and feature) can be recorded in a table (Sample).
The following table lists the available tools and provides a brief description of each.
| Tool | Description |
|---|---|
Extracts the cells of a raster based on a logical query. | |
Extracts the cells of a raster based on a circle by specifying the circle's center and radius. | |
Extracts the cells of a raster that correspond to the areas defined by a mask. | |
Extracts the cells of a raster based on a set of coordinate points. | |
Extracts the cells of a raster based on a polygon by specifying the polygon's vertices. | |
Extracts the cells of a raster based on a rectangle by specifying the rectangle's extent. | |
Extracts cell values at locations specified in a point feature class from one or more rasters and records the values to the attribute table of the point feature class. | |
Extracts the cell values of a raster based on a set of point features and records the values in the attribute table of an output feature class. | |
Creates a table or a point feature class that shows the values of cells from a raster, or a set of rasters, for defined locations. The locations are defined by raster cells, points, polylines, or polygons. |