turf - A modular geospatial engine written in JavaScript

•    Javascript

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Turf is a JavaScript library for spatial analysis. It includes traditional spatial operations, helper functions for creating GeoJSON data, and data classification and statistics tools. Turf can be added to your website as a client-side plugin, or you can run Turf server-side with Node.js (see below).Download the minified file, and include it in a script tag. This will expose a global variable named turf.

algorithm computational-geometry geojson turf gis geo geojs geospatial geography geometry map contour centroid tin extent grid polygon line point area analysis statistics stats midpoint plane quantile jenks sample

potree - WebGL point cloud viewer for large datasets

•    Javascript

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Install dependencies, as specified in package.json, and create a build in ./build/potree. Go to http://localhost:1234/examples/ to test the examples.

point cloud pointcloud octree entwine viewer threejs webgl browser tool

maker.js - Library for creating 2D vector drawings for CNC and laser cutter machines.

•    Javascript

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Maker.js, a Microsoft Garage project, is a JavaScript library for creating and sharing modular line drawings for CNC and laser cutters.

maker cad draw cnc vector svg pdf dxf drawing fonts geometry bezier openjscad rectangle circle line arc laser 2d 3d openscad point points path model triangle outline quadratic cubic curve ellipse polygon square star dome bolt holes oval belt ring slot kerf shape font trigonometry boolean chain distort dogbone fillet intsersect intsersection measure mirror rotate scale stl plasma cutter water-jet

point-in-polygon - determine if a point is inside a polygon

•    Javascript

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Determine if a point is inside of a polygon.This module casts a ray from the inquiry point and counts intersections, based on this algorithm.

point polygon inside

react-point - A small, focused click/tap component for React

•    Javascript

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A minimal click/tap component for React

react touch tap click point

resolve-pkg - Resolve the path of a package regardless of it having an entry point

•    Javascript

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Some packages like CLI tools and grunt tasks don't have a entry point, like "main": "foo.js" in package.json, resulting in them not being resolvable by require.resolve(). Unlike require.resolve(), this module also resolves packages without an entry point, returns null instead of throwing when the module can't be found, and resolves from process.cwd() instead __dirname by default.What you would use in require().

require resolve path module from like cwd current working directory grunt main entry point

random-float - Generate a random float

•    Javascript

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Returns an float from 0 to max.Returns an float from min to max.

rand random randomize float floating point real num number max min math gen generate generator

react-point - Fast touch events for React

•    Javascript

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react-point gives you fast touch events for your React applications.A <PointTarget> normalizes click and click-like touch events (not swipes or drags) into a "point" event. This helps you avoid the 300ms delay for click events on touch interfaces like iOS.

react touch tap click point

where - Geographical utilities for location-based Node.js applications

•    Javascript

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This library provides some basic utilities for building location-based applications.This library is provided under the MIT license. Contributions to the project are welcome on GitHub.

human-readable-addresses openstreetmap-nominatim geographical-utilities location coordinates geo point gis

from-3d-to-2d - Take a transformation matrix like you're used to constructing with WebGL, and project arbitrary 3D points onto your 2D screen

•    Javascript

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Take a transformation matrix like you're used to constructing with WebGL, and project arbitrary 3D points onto your 2D screen.You can use this to take a point in your WebGL scene and get its onscreen position on the canvas, e.g. to add DOM element overlays, or bootstrapping your own canvas/SVG.

project 3d webgl matrix vector point 2d plane perspective camera transform

glsl-point-light - A reusable GLSL point light function

•    Javascript

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A reusable GLSL point light function for use with glslify.Together these values effect the final attenuation curve. For more information check out this this article.

glsl shader point lighting

box-collide - return whether two boxes or points are colliding in 2d

•    Javascript

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Return a boolean colliding indicating whether a and b overlap.x and y indicate the top left corner of the box or point.

bbox collision inside 2d geometry box point overlap

geojson-geometries-lookup - ⚡️ Fast geometry in geometry lookup for large GeoJSONs.

•    Javascript

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⚡️ Fast geometry in geometry lookup for large GeoJSONs.With this package you can perform the following operations (and more) on a given GeoJSON.

geojson lookup nodejs geojson-geometries-lookup point-lookup line-lookup polygon-lookup points-lookup lines-lookup polygons-lookup geojsons-lookup point line polygon geojsons points lines polygons intersection contains contain container containers contained

turf-inside - Checks to see if a point is inside of a polygon.

•    Javascript

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Takes a Point and a Polygon or MultiPolygon and determines if the point resides inside the polygon. The polygon can be convex or concave. The function accounts for holes.Requires nodejs.

geojson polygon point inside bin gis

Perspex - Helper for perspective projection calculations - set up a camera and start projecting 3D points to 2D!

•    Javascript

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The demo shows you what's possible. Documentation coming. Code cleanup coming. Sorry.Note: The demo deliberately collides objects to test depth sorting and (in future) occlusion culling. This is not a bug. Up the geometry resolution to (kill your computer) and see it work a little more nicely.

perspex projection projector 3d point points 2d

point-geometry - A standalone point geometry primitive.

•    Javascript

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A standalone point geometry with useful accessor, comparison, and modification methods.Clone this point, returning a new point that can be modified without affecting the old one.

point geometry primitive

leaflet-pip - point in polygon intersections for leaflet

•    Javascript

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A Leaflet-friendly API for point in polygon operations, using substack's point in polygon library.An array of polygons in which the given point resides, an empty array if there are none. The polygons are returned as direct sublayers, so they can include MultiPolygons. You can call pointInLayer again on those if you want the sub-polygon result.

leaflet plugin point in polygon geo geographical

svg-path-contours - gets a discrete list of points from svg

•    Javascript

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Approximates an SVG path into a discrete list of 2D contours (polylines). This is useful for collision detection, intersection, triangulation & WebGL rendering, etc. It does not attempt to clean or optimize the discretized points.See demo/index.js for exmaple.

svg path adaptive curve bezier quadratic cubic vector points point discrete step steps approximate

breakdancer - A breakpoint tracking utility

•    Javascript

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Breakdancer is a small utility library that helps developing and using ergonomic breakpoints. Devices and sizes will always change, human ergonomics like palm, wrist, lap, desk, wall never will.Breakdancer is tested and works on both web and react-native platforms. Note that we don't specify react-native as a peer dependency in order to avoid dependency issues on pure web projects, so make sure you have react-native as a dependency.

breakpoints breakdancer breakpoint tracking break point

is-fullwidth-code-point - Check if the character represented by a given Unicode code point is fullwidth

•    Javascript

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Check if the character represented by a given Unicode code point is fullwidth

fullwidth full-width full width unicode character char string str codepoint code point is detect check