Name
ST_MinkowskiSum — Performs Minkowski sum
Synopsis
geometry
ST_MinkowskiSum
(
geometry
geom1
, geometry
geom2
)
;
Description
![[Warning]](./images/warning.png)
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ST_MinkowskiSum is deprecated as of 3.5.0. Use CG_MinkowskiSum instead. |
This function performs a 2D minkowski sum of a point, line or polygon with a polygon.
A minkowski sum of two geometries A and B is the set of all points that are the sum of any point in A and B. Minkowski sums are often used in motion planning and computer-aided design. More details on Wikipedia Minkowski addition .
The first parameter can be any 2D geometry (point, linestring, polygon). If a 3D geometry is passed, it will be converted to 2D by forcing Z to 0, leading to possible cases of invalidity. The second parameter must be a 2D polygon.
Implementation utilizes CGAL 2D Minkowskisum .
Availability: 2.1.0
This method needs SFCGAL backend.