Security News
Oracle Drags Its Feet in the JavaScript Trademark Dispute
Oracle seeks to dismiss fraud claims in the JavaScript trademark dispute, delaying the case and avoiding questions about its right to the name.
@turf/point-grid
Advanced tools
@turf/point-grid is a module from the Turf.js library that allows you to create a grid of points within a bounding box. This can be useful for various geospatial analyses, such as sampling, spatial interpolation, and creating heatmaps.
Create a Point Grid
This feature allows you to create a grid of points within a specified bounding box. The `bbox` parameter defines the bounding box, `cellSide` specifies the distance between points, and `options` can include units of measurement.
const turf = require('@turf/turf');
const bbox = [-96, 31, -84, 40];
const cellSide = 50;
const options = { units: 'miles' };
const pointGrid = turf.pointGrid(bbox, cellSide, options);
console.log(pointGrid);
Leaflet is a popular open-source JavaScript library for mobile-friendly interactive maps. While it does not directly provide point grid functionality, it can be used in conjunction with other libraries to achieve similar results. Leaflet is more focused on rendering and interacting with maps rather than generating geospatial data.
D3-geo is a module of the D3.js library that provides geographic projections, shapes, and utilities. It can be used to create point grids, but it requires more manual setup compared to @turf/point-grid. D3-geo is more flexible and can be used for a wider range of geospatial visualizations.
Geotiff is a library for reading and writing GeoTIFF files in JavaScript. While it does not directly create point grids, it can be used to manipulate geospatial raster data, which can then be sampled to create point grids. It is more specialized for working with raster data compared to @turf/point-grid.
Creates a Point grid from a bounding box, FeatureCollection or Feature.
Parameters
bbox
Array<number> extent in [minX, minY, maxX, maxY] ordercellSide
number the distance between points, in unitsoptions
Object Optional parameters (optional, default {}
)
options.units
string used in calculating cellSide, can be degrees, radians, miles, or kilometers (optional, default 'kilometers'
)options.mask
Feature<(Polygon | MultiPolygon)>? if passed a Polygon or MultiPolygon, the grid Points will be created only inside itoptions.properties
Object passed to each point of the grid (optional, default {}
)Examples
var extent = [-70.823364, -33.553984, -70.473175, -33.302986];
var cellSide = 3;
var options = {units: 'miles'};
var grid = turf.pointGrid(extent, cellSide, options);
//addToMap
var addToMap = [grid];
Returns FeatureCollection<Point> grid of points
This module is part of the Turfjs project, an open source module collection dedicated to geographic algorithms. It is maintained in the Turfjs/turf repository, where you can create PRs and issues.
Install this module individually:
$ npm install @turf/point-grid
Or install the Turf module that includes it as a function:
$ npm install @turf/turf
6.2.0
After a bit of hiatus, TurfJS is resuming releases.
@turf/boolean-touches
][boolean-touches]Determines if two features touch but do not intersect
@turf/boolean-valid
][boolean-valid]Checks if the geometry is a valid according to the OGC Simple Feature Specification
@turf/quadrat-analysis
][quadrat-analysis]Performs a quadrat analysis on a set of points
@turf/rectangle-grid
][rectangle-grid]Creates a grid of rectangles from a bounding box
@turf/voroni
][voronoi]Typescript types for the options parameter have been fixed (PR https://github.com/Turfjs/turf/pull/1424 - Author @stevage)
@turf/points-within-polygon
][points-within-polygon]Typescript types around the Feature's Properties will now be preserved. (PR https://github.com/Turfjs/turf/pull/1761 - Author @rugheid)
@turf/rewind
][rewind]Typescript types for the 'reverse' option are now correct. Previously it was misnamed as 'reversed'. (PR https://github.com/Turfjs/turf/pull/1786 - Author @jonnycornwell)
@turf/difference
][difference]No longer publishes an .mjs file.
@turf/meta
][meta]No longer publishes an .mjs file.
@turf/tag
][tag]Add MultiPolygon support. (PR https://github.com/Turfjs/turf/pull/1996 - Author bryceroney)
@turf/centroid
Don't visit first point twice when calculating centroid
(PR https://github.com/Turfjs/turf/pull/1894 - Author @rowanwins)
@turf/transform-translate
Better handling of negative distances
(PR https://github.com/Turfjs/turf/pull/1895 - Author @rowanwins)
@turf/union
, @turf/difference
, @turf/intersect
Use polygon-clipping library to fix correctness issues
(PR https://github.com/Turfjs/turf/pull/1916 - Authors @mbullington, @ngottlieb)
@turf/buffer
Change default number of steps to 8, and actually support the steps option
(PR https://github.com/Turfjs/turf/pull/1931 - Author stevenchanin)
@turf/buffer
Fix projection issues that produce undersized buffers at non-equatorial latitudes
(PR https://github.com/Turfjs/turf/pull/1956 - Author dyakovlev)
@turf/helpers
Add runtime checks to point() method, fixing an API break
(PR https://github.com/Turfjs/turf/pull/1964)
@turf/boolean-overlap
Better performance for MultiPoint geometries
(PR https://github.com/Turfjs/turf/pull/1910 - Author @mfedderly)
@turf/helpers
Add hectares to convertArea
(PR https://github.com/Turfjs/turf/pull/1943 - Author @DanielJDufour)
@turf/great-circle
Update Typescript types to support MultiLineString input
(PR https://github.com/Turfjs/turf/pull/1928 - Author kronick)
@turf/square-grid
Clarify inputs
(PR https://github.com/Turfjs/turf/pull/1885 - Author @raphael-leger)
@turf/greater-circle
Clarify properties option example
(PR https://github.com/Turfjs/turf/pull/1888 - Author @chris-catignani)
@turf/line-to-polygon
no longer modifies its input unless the mutate option is true
(PR https://github.com/Turfjs/turf/pull/1879 - Author @MortenBirk)
@turf/unkink-polygon
remove Number.prototype.modulo override
(PR https://github.com/Turfjs/turf/pull/1978)
FAQs
turf point-grid module
The npm package @turf/point-grid receives a total of 571,160 weekly downloads. As such, @turf/point-grid popularity was classified as popular.
We found that @turf/point-grid demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 0 open source maintainers collaborating on the project.
Did you know?
Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.
Security News
Oracle seeks to dismiss fraud claims in the JavaScript trademark dispute, delaying the case and avoiding questions about its right to the name.
Security News
The Linux Foundation is warning open source developers that compliance with global sanctions is mandatory, highlighting legal risks and restrictions on contributions.
Security News
Maven Central now validates Sigstore signatures, making it easier for developers to verify the provenance of Java packages.