proj4js

JavaScript library to transform coordinates from one coordinate system to another, including datum transformations (by proj4js)

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NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a better proj4js alternative or higher similarity.

proj4js reviews and mentions

Posts with mentions or reviews of proj4js. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-05-26.
  • How to Build a Choropleth Map in JavaScript
    2 projects | dev.to | 26 May 2023
    It is needed to link the required JS scripts in the section of the HTML page. These scripts include the Core and Geo Maps modules and the file that contains geodata for the world map, all of which are available on the CDN. I'll also use two more script files to connect the data to the choropleth map. One is the Data Adapter, which will help load the data, and the other is Proj4js, a JavaScript library that will transform the coordinates from one coordinate system to another so the data can be plotted on the map accurately.
  • [Excel] VBA vs. Office Scripts
    1 project | /r/vba | 13 Sep 2022
    E.G. if I wanted to use proj4js apart from copying the entire build file into my source code, there is no easy way for me to use this library. I.E. code reuse is a nightmare still.
  • How to Build a Connector Map in JS
    2 projects | dev.to | 16 Jul 2022
    We need the Core and Geo Map modules to take care of data visualization in the form of a connector map, geodata for a world map, and the Proj4js library to take care of geographic coordinates.
  • Creating a JS Connector Map to Visualize Tour de France 2021 Route
    1 project | dev.to | 22 Sep 2021
    One more script to wrap up the map-related additions is Proj4js, a JavaScript library that ensures the plotting of coordinates over the appropriate geographical area.
  • How to Build an Interactive Flow Map in JavaScript
    1 project | dev.to | 19 Jul 2021
    In addition, I will make use of another JavaScript library — Proj4js — which, in short, takes care of plotting the coordinates over the respective geographical areas.
  • We’re the Microsoft Office Scripts and Power Automate teams – Ask us Anything (and come celebrate Office Scripts GA with us)!
    2 projects | /r/excel | 11 Jun 2021
    In this way we can also still use javascript libraries to do complex tasks. E.G. Projection which is far too complicated to do in PowerAutomate. I've had this use case when trying to go from Latitude Longitude coords created by a phone to British National Grid coordinate system.
  • How to read moon projections
    1 project | /r/mapping | 21 Apr 2021
    Was hoping to make a mosaic of tiles. I used poj4js to convert data points, but it turned out to be very inaccurate for the moon (like off by 20 degrees or more).
  • Distance between points to polygon/polygon to polygon on a sphere (Earth)
    5 projects | /r/gis | 19 Apr 2021
    Then see in the doc here : https://github.com/proj4js/proj4js how to convert, it's easy once you have the definition.
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    www.influxdata.com | 25 Apr 2024
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Stats

Basic proj4js repo stats
10
1,938
6.1
9 days ago

proj4js/proj4js is an open source project licensed under GNU General Public License v3.0 or later which is an OSI approved license.

The primary programming language of proj4js is JavaScript.


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