Topic: geometry

i.image.mosaic		Mosaics several images and extends colormap.
r.patch		Creates a composite raster map layer by using known category values from one (or more) map layer(s) to fill in areas of "no data" in another map layer.
r.thin		Thins non-null cells that denote linear features in a raster map layer.
v.delaunay		Creates a Delaunay triangulation from an input vector map containing points or centroids.
v.drape		Converts 2D vector features to 3D by sampling of elevation raster map.
v.edit		Edits a vector map, allows adding, deleting and modifying selected vector features.
v.extrude		Extrudes flat vector features to 3D vector features with defined height.
v.hull		Produces a 2D/3D convex hull for a given vector map.
v.in.region		Creates a vector polygon from the current region extent.
v.mkgrid		Creates a vector map of a user-defined grid.
v.overlay		Overlays two vector maps offering clip, intersection, difference, symmetrical difference, union operators.
v.parallel		Creates parallel line to input vector lines.
v.patch		Creates a new vector map by combining other vector maps.
v.perturb		Random location perturbations of vector points.
v.report		Reports geometry statistics for vector maps.
v.segment		Creates points/segments from input vector lines and positions.
v.select		Selects features from vector map (A) by features from other vector map (B).
v.split		Splits vector lines to shorter segments.
v.to.3d		Performs transformation of 2D vector features to 3D.
v.to.lines		Converts vector polygons or points to lines.
v.to.points		Creates points along input lines in new vector map with 2 layers.
v.type		Changes type of vector features.
v.voronoi		Creates a Voronoi diagram constrained to the extents of the current region from an input vector map containing points or centroids.

See also the corresponding keyword geometry for additional references.

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