https://github.com/vis4/as3proj

ActionScript port of Proj.4 library
https://github.com/vis4/as3proj

Last synced: 3 months ago
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ActionScript port of Proj.4 library

• Host: GitHub
• URL: https://github.com/vis4/as3proj
• Owner: vis4
• Created: 2011-08-01T19:26:47.000Z (over 13 years ago)
• Default Branch: master
• Last Pushed: 2011-08-01T19:54:22.000Z (over 13 years ago)
• Last Synced: 2024-07-29T01:21:57.758Z (3 months ago)
• Language: ActionScript
• Homepage:
• Size: 135 KB
• Stars: 3
• Watchers: 1
• Forks: 2
• Open Issues: 0
• Metadata Files:
  • Readme: readme.md

Awesome Lists containing this project

• awesome-actionscript-sorted - as3proj - ActionScript port of Proj.4 library (Unsorted / Other API)

README

        
as3proj

=======

![screenshot of rendered maps](http://vis4.net/blog/wp-content/uploads/2010/04/as3proj1.png)

as3proj is a collection of map projection classes which you can use to convert geographical coodinates (pairs of latitude and longitude values) into screen coordinates. It is a port from the Java Map Projection Library[1] by Jerry Huxtable, which is itself a port from the famous PROJ.4 library[2].

1 http://www.jhlabs.com/java/maps/proj/

2 http://trac.osgeo.org/proj/

### Usage example

	var lat:Number, 

		lng:Number, 

		proj:Projection, 

		p:Point;

		

	lat = 40.2302; // degrees

	lng = 24.32434; // degrees

	proj = new RobinsonProjection();

	proj.initialize();

	p = proj.project(lat, lng, new Point());

	// p contains converted values in metres