| arcdist | Calculation of distances along arcs |
| arcdistmat | Calculation of distance matrices along arcs |
| arcpoints | Calculation of point coordinates along an arc |
| arcs | Function to plot a set of great circle arcs between points |
| CarToPol | Conversion of 3d Cartesian coordinates to polar coordinates |
| cellocator | Locate grid faces based on their positions on a map |
| centers | The face centers of an icosahedral grid object |
| chullsphere | Spherical convex hull. |
| edgelength | Lengths of grid edges |
| edges | The edges of a 3d object |
| extract-methods | Extraction from a gridlayer using indices |
| facelayer-class | A 'facelayer' linked to a 'trigrid' or 'hexagrid' object |
| faces | The face names of a trigrid or hexagrid object |
| faces3d | Methods of 3D face plotting. |
| gridensity | Icosahedral grid-based density estimation |
| gridgraph | Create or instantiate an 'graph' class graph from the faces... |
| gridlabs | Labels of grid vertices, faces and edges. |
| gridlabs3d | Display the names of the grid elements in 3d plots. |
| guides3d | Guides for 3d spherical plotting. |
| heatMapLegend | Legend for a heatmap with predefined colors. |
| hexagrid-class | Construct a penta-hexagonal icosahedral grid |
| hexguide | Tessellation guide to 'hexagrid' objects |
| icosa | Global Triangular and Hexa-Pentagonal Grids Based on... |
| length | The number of faces in a 'trigrid' or 'hexagrid' class... |
| lines3d | Methods of 3d line plotting |
| lines-methods | Lines method for the 'trigrid' and 'hexagrid' classes |
| locate | Basic lookup function of coordinates on an icosahedral grid |
| names | The face names in a 'facelayer' class object |
| newgraph | Add an igraph object to a predefined slot in an icosahedral... |
| newsf | Add a 'sf' object to a predefined slot in a 'trigrid' or... |
| newsp | Add a 'SpatialPolygons' object to a predefined slot in a... |
| occupied | Faces occupied by the specified object |
| orientation | Extracting and setting the grid orientation |
| plot | Plot method for the 'trigrid', 'hexagrid' or 'facelayer'... |
| plot3d | 3d plotting of an icosahedral grid, its subset or a data... |
| PolToCar | Conversion of polar coordinates to 3d Cartesian coordinates |
| pos | Position of face centers and vertices on a grid |
| resample | Resampling of data involving a 'trigrid' or a 'hexagrid'... |
| rotate | Rotation of 'trigrid' and 'hexagrid' objects |
| rpsphere | Random point generation on the surface of a sphere |
| SpLines | Create a 'SpatialLines' class object from an icosahedral grid |
| SpPolygons | Spatial polygons from an icosahedral grid |
| subset | Subsetting an icosahedral grid or data layers organized with... |
| surfacearea | Areas of grid cell surfaces |
| surfacecentroid | Surface centroid point of a spherical point cloud |
| translate | Translating an icosahedral grid object in 3d Cartesian space |
| trigrid-class | A triangular icosahedral grid |
| triguide | Tessellation guide to 'trigrid' objects |
| trishape | Shape distortions of the triangular faces and subfaces |
| values | Extract and replace values from a gridlayer-derived object... |
| vertices | The vertices of an icosahedral grid object |
| vicinity | The neighbouring faces of faces in an icosahedral grid |
