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geoBuffer( "Well Known Text", Geometry value, Double distance), Computes a buffer area around left geometry using the given distance. |
Function: geoBuffer(Geometry value, Double distance, Integer decimalPlaces, Integer quadrantSegments)
Computes a buffer area around left geometry using the given distance
If passed a string the geometry functions will automatically convert it into a geometry object.
Syntax
geoBuffer( geometryValueLeftgeometryValue, Distance, decimalPlaces, quadrantSegments )
| Argument | Type | Description |
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| geometryValue | WTK String or Geometry Object | The geometry the calculation is formed around provided in either data type. |
| Distance | Float | The size of the buffer area to be used. |
| decimalPlaces | Integer | The number of decimal places to use in the geometry calculations. Defaults to 0 if not provided. Can also take negative values e.g. -1 uses geometry to the nearest 10. |
| quadrantSegments | Integer | The number of line segments used to represent the quadrant of a circle where the buffer boundary contains circular arcs. Defaults to 8 if not provided. |
Examples
geoBuffer("POLYGON ((30 10, 40 40, 20 40, 10 20, 30 10))", 10)Returns a geometry Geometry of the buffer area.
See Also