| Type: | Package |
| Title: | Hexagonal Hierarchical Geospatial Indexing System |
| Version: | 0.1.2 |
| Date: | 2024-12-12 |
| Description: | Provides access to Uber's 'H3' geospatial indexing system via 'h3lib' https://CRAN.R-project.org/package=h3lib. 'h3r' is designed to mimic the 'H3' Application Programming Interface (API) https://h3geo.org/docs/api/indexing/, so that any function in the API is also available in 'h3r'. |
| License: | MIT + file LICENSE |
| URL: | https://symbolixau.github.io/h3r/ |
| BugReports: | https://github.com/symbolixau/h3r/issues |
| Encoding: | UTF-8 |
| LazyData: | true |
| Depends: | h3lib (≥ 0.1.4), R (≥ 2.10) |
| LinkingTo: | h3lib |
| Suggests: | sfheaders, tinytest |
| RoxygenNote: | 7.3.1 |
| NeedsCompilation: | yes |
| Packaged: | 2024-12-13 00:03:24 UTC; dave |
| Author: | David Cooley [aut, cre], Ray Shao [aut] |
| Maintainer: | David Cooley <dcooley@symbolix.com.au> |
| Repository: | CRAN |
| Date/Publication: | 2024-12-13 00:20:02 UTC |
Are neighbor cells
Description
Returns whether or not the provided H3 cell indexes are neighbors
Usage
areNeighborCells(origin, destination)
Arguments
origin |
vector of origin H3 cell indexes |
destination |
vector of destination H3 cell indexes |
Value
1 if the indexes are neighbors, 0 otherwise.
Examples
areNeighborCells(
origin = c("85283473fffffff","85283473fffffff")
, destination = c("85283471fffffff","85283477fffffff")
)
Exact area of specific cell in square kilometers.
Description
Exact area of specific cell in square kilometers.
Usage
cellAreaKm2(cell)
Arguments
cell |
vector of H3 cells |
Value
the exact area of specific cell in square kilometers.
Examples
cellAreaKm2(cell = c("8cbe63562a54bff","8cbe635631103ff"))
Exact area of specific cell in square meters.
Description
Exact area of specific cell in square meters.
Usage
cellAreaM2(cell)
Arguments
cell |
vector of H3 cells |
Value
the exact area of specific cell in square meters.
Examples
cellAreaM2(cell = c("8cbe63562a54bff","8cbe635631103ff"))
Exact area of specific cell in square radians.
Description
Exact area of specific cell in square radians.
Usage
cellAreaRads2(cell)
Arguments
cell |
vector of H3 cells |
Value
the exact area of specific cell in square radians.
Examples
cellAreaRads2(cell = c("8cbe63562a54bff","8cbe635631103ff"))
Cell To Boundary
Description
Cell To Boundary
Usage
cellToBoundary(cell)
Arguments
cell |
vector of H3 cells |
Value
named list, each element named with the input H3 cell, and containing
a lat and lng vector
Examples
cellToBoundary(cell = c("8cbe63562a54bff","8cbe635631103ff"))
Provies the center child index contained by cell at the childRes
resolution
Description
Provies the center child index contained by cell at the childRes
resolution
Usage
cellToCenterChild(cell, childRes)
Arguments
cell |
vector of H3 cells |
childRes |
integer vector specifying the child resolution for each
|
Value
index of the child cells
Examples
cellToCenterChild(
cell = c("85283473fffffff","85283473fffffff")
, childRes = c(7L, 8L)
)
Returns the position of the child cell within an ordered list of all children of the cell's parent at the specified resolution parentRes.
Description
Returns the position of the child cell within an ordered list of all children of the cell's parent at the specified resolution parentRes.
Usage
cellToChildPos(cell, parentRes)
Arguments
cell |
vector of H3 cells |
parentRes |
integer vector specifying the parent resolution for
each |
Value
the position of the child cell
Examples
cellToChildPos(
cell = c("8cbe63562a54bff","8cbe635631103ff")
, parentRes = c(1L, 2L)
)
Cell To Children
Description
Returns all the H3 indexes contained by the input cell at the defined
child resolution
Usage
cellToChildren(cell, childRes)
Arguments
cell |
vector of H3 cells |
childRes |
integer vector specifying the child resolution for each
|
Value
a named list, where each element is the input cell, and the values
of each element are the child H3 cells
Examples
cell <- "8cbe63562a54bff"
currentResolution <- getResolution(cell = cell)
cellToChildren(cell, childRes = currentResolution + 1L)
cellToChildren(cell, childRes = currentResolution + 2L)
res0 <- getRes0Cells()
cellToChildren(res0[1], 1L)
cellToChildren(res0[1], 2L)
cellToChildren(res0[1:5], 1L:5L)
Cell To Lat Lon
Description
Finds the center of the cell in grid space
Usage
cellToLatLng(cell)
Arguments
cell |
vector of H3 cells |
Value
a list of two vectors, lat and lng, each the same length as
cell, giving the center of cell
Examples
cellToLatLng(cell = c("8cbe63562a54bff","8cbe635631103ff"))
Cell to Local IJ
Description
Produces local IJ coordinates for an H3 index anchored by an origin.
Usage
cellToLocalIj(origin, cell)
Arguments
origin |
vector of anchor cell |
cell |
vector of cell you input |
Value
(i, j) coordinates
Examples
cellToLocalIj(
origin = c("85283473fffffff","85283473fffffff")
, cell = c("8528342bfffffff","85283477fffffff")
)
Cell To Parent
Description
Provides the parent (coarser) index containing cell
Usage
cellToParent(cell, parentRes)
Arguments
cell |
vector of H3 cells |
parentRes |
integer vector specifying the parent resolution for each
|
Value
vector of parent cells for each cell
Examples
cell <- "8cbe63562a54bff"
getResolution(cell = cell)
## The `parentRes` should be a lower value than the result of `getResolution()`
cellToParent(cell = rep(cell, 2), parentRes = c(11L, 10L))
## Specifying a single resolution
cells <- c("8cbe63562a54bff", "8cbe635631103ff")
getResolution(cell = cells)
cellToParent(cell = cells, parentRes = 6)
cellToParent(cell = cells, parentRes = 7)
Cell To Vertex
Description
Returns the index for the specified cell vertex. Valid vertex numbers are between 0 and 5 (inclusive) for hexagonal cells, and 0 and 4 (inclusive) for pentagonal cells.
Usage
cellToVertex(cell, vertexNum)
Arguments
cell |
vector of H3 cells |
vertexNum |
integer giving the vertex number of the index to return |
Value
vector of vertex indexes
Examples
cellToVertex(
cell = c(rep("8cbe63562a54bff", 6))
, vertexNum = c(0L:5L)
)
Cell To Vertexes
Description
Returns the indexes for all vertices of the given cell. The
Output will have a 0 in the result if the input cell is a pentagon
Usage
cellToVertexes(cell)
Arguments
cell |
vector of H3 cells |
Value
list of vectors giving the vertices of each cell.
Each list element corresponds to the cell index given in the cell argument,
and each element of the vector are the cell vertexes.
Examples
cellToVertexes(cell = c("8cbe63562a54bff", "8cbe635631103ff") )
Cells to directed edge
Description
Returns a unidirectional edge H3 index based on the provided origin and destination.
Usage
cellsToDirectedEdge(origin, destination)
Arguments
origin |
vector of origin H3 cell indexes |
destination |
vector of destination H3 cell indexes |
Value
a unidirectional edge H3 index based on the provided origin and destination.
Examples
cellsToDirectedEdge(
origin = c("85283471fffffff","85283473fffffff")
, destination = c("85283475fffffff","85283477fffffff")
)
Returns the child cell at a given position within an ordered list of all children of parent at the specified resolution childRes.
Description
Returns the child cell at a given position within an ordered list of all children of parent at the specified resolution childRes.
Usage
childPosToCell(childPos, cell, childRes)
Arguments
childPos |
the position of the child cell |
cell |
vector of H3 cells |
childRes |
integer vector specifying the child resolution for each
|
Value
the position of the child cell
Examples
childPosToCell(
childPos = c(42, 41)
, cell = c("85283473fffffff","85283473fffffff")
, childRes = c(7L, 7L)
)
Compacts the set cellSet of indexes as best as possible, into the array compactedSet.
Description
Compacts the set cellSet of indexes as best as possible, into the array compactedSet.
Usage
compactCells(cellSet)
Arguments
cellSet |
list of character vectors containing to be compacted H3 cell indexes |
Value
a list of character vectors containing the compacted H3 cell indexes
Examples
compactCells(gridDisk(cell = c("8cbe63562a54bff","8cbe635631103ff"), k = c(1L, 2L)))
Degrees To Rads
Description
Converts Degrees to Radians
Usage
degsToRads(deg)
Arguments
deg |
vector of degrees |
Value
numeric vector giving the input deg values as radians
Examples
degsToRads(deg = seq(0, 360, by = 15))
Directed edge To Boundary
Description
Directed edge To Boundary
Usage
directedEdgeToBoundary(edge)
Arguments
edge |
unidirectional edge |
Value
named list, each element named with the input H3 cell, and containing
a lat and lng vector
Examples
directedEdgeToBoundary(edge = c("115283473fffffff","115283477fffffff"))
Directed Edge To Cells
Description
Get the origin and destination cells of the unidirectional edge
Usage
directedEdgeToCells(edge)
Arguments
edge |
vector of unidirectional edge H3 indexes |
Value
the origin, destination pair of hexagon IDs for the given edge ID
Examples
directedEdgeToCells(edge = c("115283473fffffff","115283471fffffff"))
Get the exact edge length of specific unidirectional edge in kilometers.
Description
Get the exact edge length of specific unidirectional edge in kilometers.
Usage
edgeLengthKm(edge)
Arguments
edge |
vector of unidirectional H3 edges |
Value
the exact edge length of specific unidirectional edge in kilometers.
Examples
edgeLengthKm(edge = c("13d2a1672b34ffff","16a2a1072b59ffff"))
Get the exact edge length of specific unidirectional edge in meters.
Description
Get the exact edge length of specific unidirectional edge in meters.
Usage
edgeLengthM(edge)
Arguments
edge |
vector of unidirectional H3 edges |
Value
the exact edge length of specific unidirectional edge in meters.
Examples
edgeLengthM(edge = c("13d2a1672b34ffff","16a2a1072b59ffff"))
Get the exact edge length of specific unidirectional edge in radians.
Description
Get the exact edge length of specific unidirectional edge in radians.
Usage
edgeLengthRads(edge)
Arguments
edge |
vector of unidirectional H3 edges |
Value
the exact edge length of specific unidirectional edge in radians.
Examples
edgeLengthRads(edge = c("13d2a1672b34ffff","16a2a1072b59ffff"))
Get Base Cell Number
Description
Returns the base cell number of the index
Usage
getBaseCellNumber(cell)
Arguments
cell |
vector of H3 cells |
Value
a vector the same length as cell giving the base cell number of
each index
Examples
getBaseCellNumber(cell = c("8cbe63562a54bff","8cbe635631103ff"))
Get Directed Edge Destination
Description
Get the destination cell of the unidirectional edge
Usage
getDirectedEdgeDestination(edge)
Arguments
edge |
vector of unidirectional edge H3 indexes |
Value
the destination hexagon from the unidirectional edge H3Index.
Examples
getDirectedEdgeDestination(edge = c("115283473fffffff","16a2a1072b59ffff"))
Get Directed Edge Origin
Description
Get the origin cell of the unidirectional edge
Usage
getDirectedEdgeOrigin(edge)
Arguments
edge |
vector of unidirectional edge H3 indexes |
Value
the origin hexagon from the unidirectional edge H3Index.
Examples
getDirectedEdgeOrigin((edge = c("115283473fffffff","16a2a1072b59ffff")))
Get the average hexagon area in square kilometers at the given resolution. Excludes pentagons.
Description
Get the average hexagon area in square kilometers at the given resolution. Excludes pentagons.
Usage
getHexagonAreaAvgKm2(resolution)
Arguments
resolution |
cell resolution |
Value
Average hexagon area in square kilometers at the given resolution. Excludes pentagons.
Examples
getHexagonAreaAvgKm2(resolution = c(12L,10L))
Get the average hexagon area in square meters at the given resolution. Excludes pentagons.
Description
Get the average hexagon area in square meters at the given resolution. Excludes pentagons.
Usage
getHexagonAreaAvgM2(resolution)
Arguments
resolution |
cell resolution |
Value
Average hexagon area in square meters at the given resolution. Excludes pentagons.
Examples
getHexagonAreaAvgM2(resolution = c(12L,10L))
Get the average hexagon edge length in kilometers at the given resolution. Excludes pentagons.
Description
Get the average hexagon edge length in kilometers at the given resolution. Excludes pentagons.
Usage
getHexagonEdgeLengthAvgKm(resolution)
Arguments
resolution |
cell resolution |
Value
Average hexagon edge length in kilometers at the given resolution. Excludes pentagons.
Examples
getHexagonEdgeLengthAvgKm(resolution = c(12L,10L))
Get the average hexagon edge length in meters at the given resolution. Excludes pentagons.
Description
Get the average hexagon edge length in meters at the given resolution. Excludes pentagons.
Usage
getHexagonEdgeLengthAvgM(resolution)
Arguments
resolution |
cell resolution |
Value
Average hexagon edge length in meters at the given resolution. Excludes pentagons.
Examples
getHexagonEdgeLengthAvgM(resolution = c(12L,10L))
Get Icosahedron Faces
Description
Find all icosahedron faces intersected by a given H3 index. Faces are represented as integers from 0-19, inclusive. The array is sparse, and empty (no intersection) array values are represented by -1.
Usage
getIcosahedronFaces(cell)
Arguments
cell |
vector of H3 cells |
Value
list of vectors. Each list element corresponds to the input cell values.
Each vector in a list element gives the faces intersected by the cell
Examples
getIcosahedronFaces(cell = c("8cbe63562a54bff","8cbe635631103ff"))
getIcosahedronFaces(cell = cellToParent(c("8cbe63562a54bff" ,"8cbe635631103ff"), c(7L, 7L)))
Get the number of unique H3 indexes at the given resolution.
Description
Get the number of unique H3 indexes at the given resolution.
Usage
getNumCells(resolution)
Arguments
resolution |
cell resolution |
Value
the number of unique H3 indexes at the given resolution
Examples
getNumCells(resolution = c(12L,10L))
Get all the pentagon H3 indexes at the specified resolution.
Description
Get all the pentagon H3 indexes at the specified resolution.
Usage
getPentagons(resolution)
Arguments
resolution |
cell resolution |
Value
all the pentagon H3 indexes at the specified resolution.
Examples
getPentagons(resolution = c(12L,10L))
Get all the resolution 0 H3 indexes.
Description
Get all the resolution 0 H3 indexes.
Usage
getRes0Cells()
Value
all the resolution 0 H3 indexes.
Examples
getRes0Cells()
Get Resolution
Description
Returns the resolution of the index.
Usage
getResolution(cell)
Arguments
cell |
vector of H3 cells |
Value
a vector the same length as cell giving the resolution of each
index
Examples
getResolution(cell = c("8cbe63562a54bff","8cbe635631103ff"))
Great Circle Distance In Kilometers
Description
Gives the "great circle" or "haversine" distance between pairs of lat/lng coordinates in kilometers.
Usage
greatCircleDistanceKm(aLat, aLng, bLat, bLng)
Arguments
aLat |
vector of latitude cooridnates (from) |
aLng |
vector of longitude coordinates (from) |
bLat |
vector of latitude coordinates (to) |
bLng |
vector of longitude coordinates (to) |
Value
numeric vector giving the great circle distance in kilometres
Examples
greatCircleDistanceKm(
aLat = c(-37.820197)
, aLng = c(144.983324)
, bLat = c(-37.818476)
, bLng = c(144.967354)
)
Great Circle Distance In Meters
Description
Gives the "great circle" or "haversine" distance between pairs of lat/lng coordinates in meters.
Usage
greatCircleDistanceM(aLat, aLng, bLat, bLng)
Arguments
aLat |
vector of latitude cooridnates (from) |
aLng |
vector of longitude coordinates (from) |
bLat |
vector of latitude coordinates (to) |
bLng |
vector of longitude coordinates (to) |
Value
numeric vector giving the great circle distance in metres
Examples
greatCircleDistanceM(
aLat = c(-37.820197)
, aLng = c(144.983324)
, bLat = c(-37.818476)
, bLng = c(144.967354)
)
Great Circle Distance In Radians
Description
Gives the "great circle" or "haversine" distance between pairs of lat/lng coordinates in radians
Usage
greatCircleDistanceRads(aLat, aLng, bLat, bLng)
Arguments
aLat |
vector of latitude cooridnates (from) |
aLng |
vector of longitude coordinates (from) |
bLat |
vector of latitude coordinates (to) |
bLng |
vector of longitude coordinates (to) |
Value
numeric vector giving the great circle distance in radians
Examples
greatCircleDistanceRads(
aLat = c(-37.820197)
, aLng = c(144.983324)
, bLat = c(-37.818476)
, bLng = c(144.967354)
)
Grid Disk
Description
Get indices within k distance of the origin index.
Usage
gridDisk(cell, k)
Arguments
cell |
vector of H3 cells |
k |
int distance |
Details
Elements of the output array may be left as zero, which can happen when crossing a pentagon.
k-ring 0 is defined as the origin index, k-ring 1 is defined as k-ring 0 and all neighboring indexes, and so on.
Value
the indices within k distance of the origin index
Examples
gridDisk(cell = c("8cbe63562a54bff","8cbe635631103ff"), k = c(1L, 2L))
Grid Disk Distances
Description
Get indices within k distance of the origin index.
Usage
gridDiskDistances(cell, k)
Arguments
cell |
vector of H3 cells |
k |
int distance |
Details
k-ring 0 is defined as the origin index, k-ring 1 is defined as k-ring 0 and all neighboring indexes, and so on.
Value
indices within k distance of the origin index.
Examples
gridDiskDistances(cell = c("8cbe63562a54bff","8cbe635631103ff")
, k = c(1L, 2L))
Grid Distance
Description
Provides the distance in grid cells between the two indexes.
Usage
gridDistance(origin, destination)
Arguments
origin |
vector of origin H3 cell indexes |
destination |
vector of destination H3 cell indexes |
Value
the grid distance between the two H3 cells
Examples
gridDistance(origin = c("85283473fffffff","85283473fffffff"),
destination = c("8528342bfffffff","85283477fffffff"))
Grid Path Cells
Description
Given two H3 indexes, return the line of indexes between them (inclusive).
Usage
gridPathCells(origin, destination)
Arguments
origin |
vector of origin H3 cell indexes |
destination |
vector of destination H3 cell indexes |
Details
This function may fail to find the line between two indexes, for example if they are very far apart. It may also fail when finding distances for indexes on opposite sides of a pentagon.
Value
the line of indexes between the two H3 cells
Examples
gridPathCells(origin = c("85283473fffffff","85283473fffffff")
, destination = c("85283471fffffff","85283477fffffff"))
Grid Ring Unsafe
Description
Produces the hollow hexagonal ring centered at origin with sides of length k.
Usage
gridRingUnsafe(cell, k)
Arguments
cell |
vector of H3 cells |
k |
side length |
Value
the indices of the hollow hexagonal ring centered at origin with sides of length k.
Examples
gridRingUnsafe(cell = c("8cbe63562a54bff","85283473fffffff"), k = c(2L, 1L))
Is Pentagon
Description
Returns non-zero if this index represents a pentagonal cell.
Usage
isPentagon(cell)
Arguments
cell |
vector of H3 cells |
Value
a vector the same length as cell indicating if the cell is Class II
Examples
isPentagon(cell = c("8cbe63562a54bff","8cbe635631103ff"))
Is Res Class III
Description
Returns non-zero if this index has a resolution with Class III orientation.
Usage
isResClassIII(cell)
Arguments
cell |
vector of H3 cells |
Value
a vector the same length as cell indicating if the cell is Class II
Examples
isResClassIII(cell = c("8cbe63562a54bff","8cbe635631103ff"))
hex8 <- "88bf4ac0cdfffff"
hex9 <- "89bf4ac0cd7ffff"
hex10 <- "8abf4ac0cd67fff"
isResClassIII(cell = c(hex8, hex9, hex10))
Is Valid Cell
Description
Returns non-zero if this is a valid H3 cell index
Usage
isValidCell(cell)
Arguments
cell |
vector of H3 cells |
Value
a vector the same length as cell giving the validity of the cell
Examples
isValidCell(cell = c("8cbe63562a54bff","8cbe635631103ff", "abc", "3"))
Is valid directed edge
Description
Determines if the provided H3Index is a valid unidirectional edge index.
Usage
isValidDirectedEdge(edge)
Arguments
edge |
vector of unidirectional edge H3 indexes |
Value
1 if it is a unidirectional edge H3Index, otherwise 0.
Examples
isValidDirectedEdge(edge = c("13d2a1672b34ffff","16a2a1072b59ffff"))
Is Valid Vertex
Description
Tests if the given vertex is a valid H3 vertex
Usage
isValidVertex(vertex)
Arguments
vertex |
H3 Vertex index |
Value
returns 1 if the given index is a valid H3 vertex
Examples
isValidVertex(vertex = c("24cbe63562a549ff", "abc"))
lat lng to cell
Description
Indexes the location at the specified resolution, returning the index of the cell containing the location. This buckets the geographic point into the H3 grid
Usage
latLngToCell(lat, lng, resolution)
Arguments
lat |
latitude |
lng |
longitude |
resolution |
cell resolution |
Value
vector giving the H3 cell for each input lat/lng pair, at the given resolution
Examples
latLngToCell(
lat = c(-37.820197, -37.818476)
, lng = c(144.983324, 144.967354)
, resolution = c(12, 12)
)
Local IJ To Cell
Description
Produces an H3 index from local IJ coordinates anchored by an origin.
Usage
localIjToCell(origin, i, j)
Arguments
origin |
vector of anchor cell |
i |
vector of local I coordinate |
j |
vector of local I coordinate |
Value
cell vector of H3 cells
Examples
localIjToCell(
origin = c("85283473fffffff","85283473fffffff")
, i = c(1L, 2L)
, j = c(2L, 1L)
)
Origin To Directed Edges
Description
Get all of the directed edges from an origin
Usage
originToDirectedEdges(origin)
Arguments
origin |
vector of origin H3 cell indexes |
Value
a vector for each origin with all of the directed edges from the current H3Index
Examples
originToDirectedEdges(origin = c("85283473fffffff","8cbe635631103ff"))
Polygon to cells
Description
Returns the h3 indexes for the input GeoJSON-like data structure
Usage
polygonToCells(polygons, resolution, isLatLng = TRUE)
Arguments
polygons |
A list of polygons. Each polygon is list of matrices. |
resolution |
The resolution of the output cells |
isLatLng |
|
Value
h3 indexes for the input GeoJSON-like data structure
Examples
## single polygon
polygon <- list(
list(
matrix(
c(
37.813318999983238, -122.4089866999972145,
37.7198061999978478, -122.3544736999993603,
37.8151571999998453, -122.4798767000009008
)
, ncol = 2
, byrow = TRUE
)
)
)
polygonToCells(polygon, resolution = 7L)
## poylgon with a hole
polygon <- list(
list(
matrix(
c(
37.813318999983238, -122.4089866999972145,
37.7198061999978478, -122.3544736999993603,
37.8151571999998453, -122.4798767000009008
)
, ncol = 2
, byrow = TRUE
),
matrix(
c(
37.813318999983238, -122.4089866999972145,
37.7198061999978478, -122.3544736999993603,
37.8151571999998453, -122.4498767000009008
)
, ncol = 2
, byrow = TRUE
)
)
)
polygonToCells(polygon, resolution = 7L)
## Many polygons
polygon <- list(
list(
matrix(
c(
37.813318999983238, -122.4089866999972145,
37.7198061999978478, -122.3544736999993603,
37.8151571999998453, -122.4798767000009008
)
, ncol = 2
, byrow = TRUE
)
),
list(
matrix(
c(
37.813318999983238, -122.4089866999972145,
37.7198061999978478, -122.3544736999993603,
37.8151571999998453, -122.4498767000009008
)
, ncol = 2
, byrow = TRUE
)
)
)
polygonToCells(polygon, resolution = c(7L, 7L))
Rads to Degrees
Description
Converts Radians to Degrees
Usage
radsToDegs(rad)
Arguments
rad |
vector of radians |
Value
numeric vector giving the input rad values as degrees
Examples
radsToDegs(rad = seq(0, 2 * pi, by = (pi / 12) ) )
Stations
Description
A data set of train stations in Melbourne
Usage
stations
Format
- stop_id
The ID of the station
- stop_name
The name of the station
- lat
The latitude coordinate of the station
- lon
The longitude coordinate of the station
Details
Obtained from https://discover.data.vic.gov.au/dataset/gtfs-schedule and distributed under the Creative Commons 4 License https://creativecommons.org/licenses/by/4.0/
Uncompacts a set of compacted H3 cell indexes to a given resolution.
Description
This function uncompacts the provided set of compacted H3 cell indexes to the specified resolution.
Usage
uncompactCells(compactedSet, resolution)
Arguments
compactedSet |
list of character vectors containing compacted H3 cell indexes |
resolution |
integer specifying the resolution for the uncompacted cells |
Value
a list of character vectors containing the uncompacted H3 cell indexes at the specified resolution
Examples
uncompactCells(
compactCells(
gridDisk(
cell = c("85283477fffffff", "85283423fffffff")
, k = c(1L, 2L)
)
)
, res = c(5L, 5L)
)
Vertex To Lat Lng
Description
Returns the latitude and longitude of the given vertex
Usage
vertexToLatLng(vertex)
Arguments
vertex |
H3 Vertex index |
Value
data.frame of the lat/lng coordinates of the input vertex
Examples
vertices <- cellToVertex(
cell = c(rep("8cbe63562a54bff", 6))
, vertexNum = c(0L:5L)
)
vertexToLatLng(vertex = vertices)