Summary
A raster dataset consists of cells or pixels arranged in rows and columns, each containing a value representing specific information. In contrast to a raster dataset, a vector dataset can be classified into three types: points, polygons, and lines. Overlaying vector datasets, such as point features, onto a raster dataset can enhance spatial analysis and data visualization. This article explains how to extract a buffer area from a raster layer using point features in ArcGIS Pro.
Procedure
- Open the ArcGIS Pro project.
- Select the preferred point features using Select By Attributes.
- On the ribbon, click the Map tab. In the Selection group, click Select By Attributes.
- In the Select By Attribute dialog box, for Input Rows, click the drop-down list and select the point feature layer.
- For Selection Type, click the drop-down list and select New selection.
- Enter the query expression in Clause mode.
Where '<Field>' 'is equal to' '<Value>'
- Optionally, click the Add Clause button to add additional clauses.
- Click the Verify button to validate the expression.
- Click OK.
- Create a buffer within the point feature using the Buffer tool.
- On the ribbon, click the Analysis tab. In the Geoprocessing group, click Tools.
- In the Geoprocessing pane, search for and click Buffer (Analysis Tools).
- In the Buffer pane, for Input Features, click the drop-down list and select the point feature layer. In this example, the input feature layer consists of eight selected point features.
- For Output Feature Class, specify a name and location.
- For Distance (value or field), select Linear Unit from the drop-down list and specify the distance and the unit. In this example, 100 meters is specified.
- Click Run.
- Extract the cells of the raster layer that correspond to the buffer areas using the Extract by Mask tool.
- On the ribbon, click the Analysis tab. In the Geoprocessing group, click Tools.
- In the Geoprocessing pane, search for and click Extract by Mask (Spatial Analyst Tools).
- For Input raster, click the drop-down list and select the raster layer.
- For Input raster or feature mask data, click the drop-down list and select the output feature layer created in Step 3.
- For Output raster, specify a name and location.
- Click Run.
The image below shows the extracted raster layer with a preferred buffer zone.