Constructive operations

BufferCapStyle(value)	An enumeration.
BufferJoinStyle(value)	An enumeration.
boundary(geometry, **kwargs)	Returns the topological boundary of a geometry.
buffer(geometry, distance[, quad_segs, ...])	Computes the buffer of a geometry for positive and negative buffer distance.
offset_curve(geometry, distance[, ...])	Returns a (Multi)LineString at a distance from the object on its right or its left side.
centroid(geometry, **kwargs)	Computes the geometric center (center-of-mass) of a geometry.
clip_by_rect(geometry, xmin, ymin, xmax, ...)	Returns the portion of a geometry within a rectangle.
concave_hull(geometry[, ratio, allow_holes])	Computes a concave geometry that encloses an input geometry.
convex_hull(geometry, **kwargs)	Computes the minimum convex geometry that encloses an input geometry.
delaunay_triangles(geometry[, tolerance, ...])	Computes a Delaunay triangulation around the vertices of an input geometry.
segmentize(geometry, max_segment_length, ...)	Adds vertices to line segments based on maximum segment length.
envelope(geometry, **kwargs)	Computes the minimum bounding box that encloses an input geometry.
extract_unique_points(geometry, **kwargs)	Returns all distinct vertices of an input geometry as a multipoint.
build_area(geometry, **kwargs)	Creates an areal geometry formed by the constituent linework of given geometry.
make_valid(geometry, **kwargs)	Repairs invalid geometries.
normalize(geometry, **kwargs)	Converts Geometry to normal form (or canonical form).
node(geometry, **kwargs)	Returns the fully noded version of the linear input as MultiLineString.
point_on_surface(geometry, **kwargs)	Returns a point that intersects an input geometry.
polygonize(geometries, **kwargs)	Creates polygons formed from the linework of a set of Geometries.
polygonize_full(geometries, **kwargs)	Creates polygons formed from the linework of a set of Geometries and return all extra outputs as well.
remove_repeated_points(geometry[, tolerance])	Returns a copy of a Geometry with repeated points removed.
reverse(geometry, **kwargs)	Returns a copy of a Geometry with the order of coordinates reversed.
simplify(geometry, tolerance[, ...])	Returns a simplified version of an input geometry using the Douglas-Peucker algorithm.
snap(geometry, reference, tolerance, **kwargs)	Snaps an input geometry to reference geometry's vertices.
voronoi_polygons(geometry[, tolerance, ...])	Computes a Voronoi diagram from the vertices of an input geometry.
oriented_envelope(geometry, **kwargs)	Computes the oriented envelope (minimum rotated rectangle) that encloses an input geometry.
minimum_rotated_rectangle(geometry, **kwargs)	Computes the oriented envelope (minimum rotated rectangle) that encloses an input geometry.
minimum_bounding_circle(geometry, **kwargs)	Computes the minimum bounding circle that encloses an input geometry.