# Erase Analysis

Remove portions of features from an input dataset that overlap with an erase dataset.

## Overview

Erase analysis removes portions of input features that overlap with erase features, creating new geometries.

## Inputs

- **Input Dataset**: Dataset to erase from
- **Erase Dataset**: Dataset to erase with

## Outputs

New dataset containing:

- Features with erased portions removed
- Remaining geometry after erase
- Original attributes preserved

## Example

```json
{
  "input_dataset_id": 123,
  "erase_dataset_id": 124
}
```

## Background Jobs

This analysis runs as a background job. See [Erase Analysis Worker](../workers/erase_analysis.md) for details.

## Use Cases

- Exclusion zone mapping
- Feature subtraction
- Boundary modification
- Area calculations

## Notes

- Overlapping portions are removed
- Non-overlapping features preserved
- Complex geometries may slow processing
- Results depend on overlap extent

## Related Documentation

- [Erase Analysis Worker](../workers/erase_analysis.md)
- [Analysis API](../api/analysis.md)