Topic: geometry
| Tool | Description |
|---|---|
| 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. Optionally the height can be derived from sampling of elevation raster map. |
| v.fill.holes | Fill holes in areas by keeping only outer boundaries |
| 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 for additional references:
geometry
- g.gui.gcp - wxGUI GCP Manager
- g.gui.image2target - wxGUI GCP Manager
- g.gui.photo2image - wxGUI GCP Manager for photo to image registration
- i.image.mosaic - Mosaics several images and extends colormap.
- i.ortho.photo - Menu driver for the photo imagery programs.
- i.rectify - Rectifies an image by computing a coordinate transformation for each pixel in the image based on the control points.
- i.sentinel.coverage - Checks the area coverage of Sentinel-1 or Sentinel-2 scenes selected by filters.
- r.circle - Creates a raster map containing concentric rings around a given point.
- 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.region - Sets the boundary definitions for a raster map.
- r.thin - Thins non-null cells that denote linear features in a raster map layer.
- r.to.vect - Converts a raster map into a vector map.
- r.to.vect.tiled - Converts a raster map into vector tiles.
- v.buffer - Creates a buffer around vector features of given type.
- v.build - Creates topology for vector map. Optionally also checks for topological errors.
- v.build.polylines - Builds polylines from lines or boundaries.
- v.centerpoint - Calculate center points
- v.clean - Toolset for cleaning topology of vector map.
- v.clean.ogr - Imports vector data into a GRASS vector map, cleans the data topologically, and exports them again using OGR library.
- v.concave.hull - Creates a concave hull around points.
- 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.ellipse - Computes the best-fitting ellipse for given vector data.
- v.extrude - Extrudes flat vector features to 3D vector features with defined height. Optionally the height can be derived from sampling of elevation raster map.
- v.fill.holes - Fill holes in areas by keeping only outer boundaries
- v.fixed.segmentpoints - segment points along a vector line with fixed distances
- v.generalize - Performs vector based generalization.
- v.hull - Produces a 2D/3D convex hull for a given vector map.
- v.in.gbif - importing of GBIF species distribution data
- v.in.natura2000 - importing of Natura 2000 spatial data of protected areas
- v.in.ogr - Imports vector data into a GRASS vector map using OGR library.
- v.in.pygbif - Search and import GBIF species distribution data
- v.in.redlist - importing of IUCN Red List Spatial Data
- v.in.region - Creates a vector polygon from the current region extent.
- v.mkgrid - Creates a vector map of a user-defined grid.
- v.multi2singlepart - Split multi-part polygons into single-part polygons.
- 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.rast.move - Move vertices by distance specified in a raster
- v.rectify - Rectifies a vector by computing a coordinate transformation for each object in the vector based on the control 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.db - Populates attribute values from vector features.
- 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.transform - Performs an affine transformation (shift, scale and rotate) on vector map.
- v.type - Changes type of vector features.
- v.univar - Calculates univariate statistics of vector map features. Variance and standard deviation is calculated only for points if specified.
- v.voronoi - Creates a Voronoi diagram constrained to the extents of the current region from an input vector map containing points or centroids.