Constructive operations

BufferCapStyle(*values)	Enumeration of buffer cap styles.
BufferJoinStyle(*values)	Enumeration of buffer join styles.
boundary(geometry, **kwargs)	Return the topological boundary of a geometry.
buffer(geometry, distance[, quad_segs, ...])	Compute the buffer of a geometry for positive and negative buffer distance.
build_area(geometry, **kwargs)	Create an areal geometry formed by the constituent linework of given geometry.
centroid(geometry, **kwargs)	Compute the geometric center (center-of-mass) of a geometry.
clip_by_rect(geometry, xmin, ymin, xmax, ...)	Return the portion of a geometry within a rectangle.
concave_hull(geometry[, ratio, allow_holes])	Compute a concave geometry that encloses an input geometry.
constrained_delaunay_triangles(geometry, ...)	Compute the constrained Delaunay triangulation of polygons.
convex_hull(geometry, **kwargs)	Compute the minimum convex geometry that encloses an input geometry.
delaunay_triangles(geometry[, tolerance, ...])	Compute a Delaunay triangulation around the vertices of an input geometry.
envelope(geometry, **kwargs)	Compute the minimum bounding box that encloses an input geometry.
extract_unique_points(geometry, **kwargs)	Return all distinct vertices of an input geometry as a multipoint.
make_valid(geometry, *[, method, keep_collapsed])	Repair invalid geometries.
maximum_inscribed_circle(geometry[, tolerance])	Find the largest circle that is fully contained within the input geometry.
minimum_bounding_circle(geometry, **kwargs)	Compute the minimum bounding circle that encloses an input geometry.
minimum_clearance_line(geometry, **kwargs)	Return a LineString whose endpoints define the minimum clearance.
minimum_rotated_rectangle(geometry, **kwargs)	Compute the oriented envelope (minimum rotated rectangle) of the input geometry.
node(geometry, **kwargs)	Return the fully noded version of the linear input as MultiLineString.
normalize(geometry, **kwargs)	Convert Geometry to strict normal form (or canonical form).
offset_curve(geometry, distance[, ...])	Return a (Multi)LineString at a distance from the object.
orient_polygons(geometry, *[, exterior_cw])	Enforce a ring orientation on all polygonal elements in the input geometry.
oriented_envelope(geometry, **kwargs)	Compute the oriented envelope (minimum rotated rectangle) of the input geometry.
point_on_surface(geometry, **kwargs)	Return a point that intersects an input geometry.
polygonize(geometries, **kwargs)	Create polygons formed from the linework of a set of Geometries.
polygonize_full(geometries, **kwargs)	Create polygons formed from the linework of a set of Geometries.
remove_repeated_points(geometry[, tolerance])	Return a copy of a Geometry with repeated points removed.
reverse(geometry, **kwargs)	Return a copy of a Geometry with the order of coordinates reversed.
segmentize(geometry, max_segment_length, ...)	Add vertices to line segments based on maximum segment length.
simplify(geometry, tolerance[, ...])	Return a simplified version of an input geometry.
snap(geometry, reference, tolerance, **kwargs)	Snap the vertices and segments of the geometry to vertices of the reference.
voronoi_polygons(geometry[, tolerance, ...])	Compute a Voronoi diagram from the vertices of an input geometry.