Description
The Create Area Around Geospatial Points activity generates a polygonal area (circle or rectangle) around each point in a specified geopoint column. You can define:
- The shape of the area (Rectangle or Circle)
- The size using width/height (for rectangles) or radius (for circles)
- The unit of measurement (Kilometers or Miles)
Use this activity to:
- Create buffers for geofencing, proximity search, or visualization
- Define spatial zones for mapping
- Perform region-based filtering or analysis in downstream steps
Use case: Surround store locations with a 5 km radius to analyze customers within that proximity.
| Input Type | Required |
|---|
| Data | Required |
Output
| Output Type | Format | Description |
|---|
| Data | JSON | Original data with a new polygon column |
Configuration Fields
| Field Name | Description |
|---|
| Geo Point Column | Column containing the input geopoints (e.g., POINT(-74.006 40.7128)) |
| Polygon Column Name | Name of the new column to store the polygon geometry |
| Polygon Shape | Shape to generate: Rectangle or Circle |
| Distance Unit | Measurement unit: Kilometers or Miles |
| Width | Width of the rectangle (only for Rectangle shape) |
| Height | Height of the rectangle (only for Rectangle shape) |
| Radius | Radius of the circle (only for Circle shape) |
| Location | Latitude | Longitude | GeoPoint |
|---|
| New York | 40.7128 | -74.0060 | POINT(-74.006 40.7128) |
| Los Angeles | 34.0522 | -118.2437 | POINT(-118.2437 34.0522) |
| Chicago | 41.8781 | -87.6298 | POINT(-87.6298 41.8781) |
| Houston | 29.7604 | -95.3698 | POINT(-95.3698 29.7604) |
| Phoenix | 33.4484 | -112.0740 | POINT(-112.074 33.4484) |
Sample Configuration
| Field | Value |
|---|
Geo Point Column | GeoPoint |
Polygon Column Name | Geometry |
Polygon Shape | Rectangle |
Distance Unit | Kilometers |
Width | 1.0 |
Height | 2.0 |
Sample Output
| Location | Latitude | Longitude | GeoPoint | Geometry |
|---|
| New York | 40.7128 | -74.0060 | POINT(-74.006 40.7128) | POLYGON((-74.0105 40.6965, -74.0105 40.7291, -74.0015 40.7291, -74.0015 40.6965, -74.0105 40.6965)) |
| Los Angeles | 34.0522 | -118.2437 | POINT(-118.2437 34.0522) | POLYGON((-118.2482 34.0617, -118.2482 34.0427, -118.2392 34.0427, -118.2392 34.0617, -118.2482 34.0617)) |
| Chicago | 41.8781 | -87.6298 | POINT(-87.6298 41.8781) | POLYGON((-87.6343 41.7694, -87.6343 41.9868, -87.6253 41.9868, -87.6253 41.7694, -87.6343 41.7694)) |
| Houston | 29.7604 | -95.3698 | POINT(-95.3698 29.7604) | POLYGON((-95.3743 29.8084, -95.3743 29.7123, -95.3653 29.7123, -95.3653 29.8084, -95.3743 29.8084)) |
| Phoenix | 33.4484 | -112.0740 | POINT(-112.074 33.4484) | POLYGON((-112.0785 33.4604, -112.0785 33.4364, -112.0695 33.4364, -112.0695 33.4604, -112.0785 33.4604)) |
