Swiss Ephemeris binding for node.js

About

Swiss Ephemeris binding for node.js under GNU GPL 2.0.

See Ephemeris Online service based on this project.

Supported platforms: Mac OS X | Windows | Linux | FreeBSD

Getting started

To install run:

$ npm install swisseph

Usage

Example:

var swisseph = require ('swisseph');

// Test date
var date = {year: 2012, month: 1, day: 1, hour: 0};
console.log ('Test date:', date);

var flag = swisseph.SEFLG_SPEED;

// path to ephemeris data
swisseph.swe_set_ephe_path (__dirname + '/../ephe');

// Julian day
swisseph.swe_julday (date.year, date.month, date.day, date.hour, swisseph.SE_GREG_CAL, function (julday_ut) {
	assert.equal (julday_ut, 2455927.5);
	console.log ('Julian UT day for date:', julday_ut);

	// Sun position
	swisseph.swe_calc_ut (julday_ut, swisseph.SE_SUN, flag, function (body) {
		assert (!body.error, body.error);
		console.log ('Sun position:', body);
	});

	// Moon position
	swisseph.swe_calc_ut (julday_ut, swisseph.SE_MOON, flag, function (body) {
		assert (!body.error, body.error);
		console.log ('Moon position:', body);
	});
});

For more examples see examples and test folders.

See Programming interface to the Swiss Ephemeris for more details.

This javascript programming interface is little different from the original api, basically for return values. For more details see src/*.h.

Feedback

Please feel free to fill issues for bugs, erros and features.

License

This software licensed under GNU GPL 2.0 license.