SFCGAL Processing and Relationship Functions |
CG_Intersection
1
(geomA, geomB)
Computes the intersection of two geometries |
CG_Intersects
1
(geomA, geomB)
Tests if two geometries intersect (they have at least one point in common) |
CG_3DIntersects
1
(geomA, geomB)
Tests if two 3D geometries intersect |
CG_Difference
1
(geomA, geomB)
Computes the geometric difference between two geometries |
ST_3DDifference
mm
3d
(geom1, geom2)
3차원 차이를 수행합니다. |
CG_3DDifference
1
mm
3d
(geom1, geom2)
3차원 차이를 수행합니다. |
CG_Distance
1
(geomA, geomB)
Computes the minimum distance between two geometries |
CG_3DDistance
1
(geomA, geomB)
Computes the minimum 3D distance between two geometries |
ST_3DConvexHull
3d
(geom1)
면 도형의 근사 중심축을 계산합니다. |
CG_3DConvexHull
1
3d
(geom1)
면 도형의 근사 중심축을 계산합니다. |
ST_3DIntersection
mm
3d
(geom1, geom2)
3차원 교차를 수행합니다. |
CG_3DIntersection
1
mm
3d
(geom1, geom2)
3차원 교차를 수행합니다. |
CG_Union
1
(geomA, geomB)
Computes the union of two geometries |
ST_3DUnion
mm
3d
Perform 3D union.
- geom1, geom2
- g1field agg
|
CG_3DUnion
1
mm
3d
Perform 3D union using postgis_sfcgal.
- geom1, geom2
- g1field agg
|
ST_AlphaShape
(geom, alpha, allow_holes = false)
Computes an Alpha-shape enclosing a geometry |
CG_AlphaShape
1
(geom, alpha, allow_holes = false)
Computes an Alpha-shape enclosing a geometry |
CG_ApproxConvexPartition
1
cg1.5
(geom)
Computes approximal convex partition of the polygon geometry |
ST_ApproximateMedialAxis
3d
(geom)
면 도형의 근사 중심축을 계산합니다. |
CG_ApproximateMedialAxis
1
3d
(geom)
면 도형의 근사 중심축을 계산합니다. |
ST_ConstrainedDelaunayTriangles
3d
(g1)
Return a constrained Delaunay triangulation around the given input geometry. |
CG_ConstrainedDelaunayTriangles
3d
(g1)
Return a constrained Delaunay triangulation around the given input geometry. |
ST_Extrude
3d
(geom, x, y, z)
표면을 관련 입체로 돌출시킵니다. |
CG_Extrude
1
3d
(geom, x, y, z)
표면을 관련 입체로 돌출시킵니다. |
CG_ExtrudeStraightSkeleton
1
cg1.5
(geom, roof_height, body_height = 0)
Straight Skeleton Extrusion |
CG_GreeneApproxConvexPartition
1
cg1.5
(geom)
Computes approximal convex partition of the polygon geometry |
ST_MinkowskiSum
(geom1, geom2)
민코프스키 합계를 수행합니다. |
CG_MinkowskiSum
1
(geom1, geom2)
민코프스키 합계를 수행합니다. |
ST_OptimalAlphaShape
(geom, allow_holes = false, nb_components = 1)
Computes an Alpha-shape enclosing a geometry using an "optimal" alpha value. |
CG_OptimalAlphaShape
1
(geom, allow_holes = false, nb_components = 1)
Computes an Alpha-shape enclosing a geometry using an "optimal" alpha value. |
CG_OptimalConvexPartition
1
cg1.5
(geom)
Computes an optimal convex partition of the polygon geometry |
CG_StraightSkeleton
1
3d
(geom, use_distance_as_m = false)
도형으로부터 직선 골격(straight skeleton)을 계산합니다. |
ST_StraightSkeleton
3d
(geom)
도형으로부터 직선 골격(straight skeleton)을 계산합니다. |
ST_Tesselate
3d
(geom)
폴리곤 또는 다면체 표면의 표면 다듬기(tessellation) 작업을 수행한 다음 TIN 또는 TIN 집합으로 반환합니다. |
CG_Tesselate
1
3d
(geom)
폴리곤 또는 다면체 표면의 표면 다듬기(tessellation) 작업을 수행한 다음 TIN 또는 TIN 집합으로 반환합니다. |
CG_Triangulate
1
(geom)
Triangulates a polygonal geometry |
CG_Visibility
1
cg1.5
3d
Compute a visibility polygon from a point or a segment in a polygon geometry
- polygon, point
- polygon, pointA, pointB
|
CG_YMonotonePartition
1
cg1.5
(geom)
Computes y-monotone partition of the polygon geometry |