Get day and night world geometry and dumps to a GeoJSON file. This module is partially a port to javascript from Python Matplotlib Basemap solar module.
Several functions are ported from Python Matplotlib Basemap library, mainly developed by Jeff Whitaker (NOAA - Earth System Research Laboratory). https://github.com/matplotlib/basemap
Example 1. Basic usage to compute a given day.
Example 2. Basic usage to compute now (UTC).
Example 3. Basic usage to compute now (UTC) with limited bounding box
Basic usage to compute a given day:
var bmsl = require("./dn2geojson");
var delta = 1;
var latmin = -90., latmax = 90., lonmin = -180., lonmax = 180.;
var year = 2015, month = 10, day = 22, hour = 12, minutes = 0;
var datetocomp = [year, month, day, hour, minutes];
var res_geojson = bmsl.dn2geojson(datetocomp, delta, latmax, lonmax, latmin, lonmin);
console.log(JSON.stringify(res_geojson, null, " "));Basic usage to compute now (UTC):
var bmsl = require("./dn2geojson");
var delta = 1;
var latmin = -90., latmax = 90., lonmin = -180., lonmax = 180.;
var datetocomp = [];
var res_geojson = bmsl.dn2geojson(datetocomp, delta, latmax, lonmax, latmin, lonmin);
console.log(JSON.stringify(res_geojson, null, " "));Basic usage to compute now (UTC) with limited bounding box:
var bmsl = require("./dn2geojson");
var delta = 1;
var latmin = -80., latmax = 80., lonmin = -60., lonmax = 60.;
var datetocomp = [];
var res_geojson = bmsl.dn2geojson(datetocomp, delta, latmax, lonmax, latmin, lonmin);
console.log(JSON.stringify(res_geojson, null, " "));You can see or use package.json file.
- Geojson.
For node, use npm:
$ npm install geojson
Developed by Cayetano Benavent. GIS Analyst at Geographica.
copyright (c) 2015 by Cayetano Benavent.
copyright (c) 2011 by Jeffrey Whitaker.
Permission to use, copy, modify, and distribute this software and its documentation for any purpose and without fee is hereby granted, provided that the above copyright notices appear in all copies and that both the copyright notices and this permission notice appear in supporting documentation. THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.