# Distance geoprocessing functions

Available with Spatial Analyst license.

The Distance geoprocessing functions allow you to perform analysis that accounts for either straight-line (Euclidean) or weighted distance. Distance can be weighted by a simple cost (friction) surface, or in ways that account for vertical and horizontal restrictions to movement.

Distance analysis can be performed with the ArcGIS Spatial Analyst extension.

The following table lists the available geoprocessing functions and provides a brief description of each.

Geoprocessing Function | Description |
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Corridor | Calculates the sum of accumulative costs for two input accumulative cost rasters. |

Distance Accumulation | Calculates accumulated distance for each cell to sources, allowing for straight-line distance, cost distance, true surface distance, as well as vertical and horizontal cost factors. |

Distance Allocation | Calculates distance allocation for each cell to the provided sources based on straight-line distance, cost distance, true surface distance, as well as vertical and horizontal cost factors. |

Optimal Path As Line | Calculates the optimal path from a source to a destination as a line. |

Optimal Path As Raster | Calculates the optimal path from a source to a destination as a raster. |

Optimal Region Connections | Calculates the optimal connectivity network between two or more input regions. |

Geoprocessing functions in the Distance category

In ArcGIS Pro 2.5 and later, the recommended geoprocessing functions for distance analysis are listed in the table above. In versions earlier than ArcGIS Pro 2.5, distance analysis was performed using other geoprocessing functions; these geoprocessing functions are still available in the Legacy Distance geoprocessing function category.

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