geo-tools

Opinionated geo utilities for day to day development

Requirements

• NodeJS v8.11.1+
• npm v5.6.0+

Installation

npm install --save @lykmapipo/geo-tools

Usage

import {
  randomPosition,
  randomPoint,
  readShapefile,
  readGeoJSON
} from '@lykmapipo/geo-tools';

randomPosition()
//=> [-76.41031, 67.0704]

randomPoint()
//=> { type: 'Point', coordinates: [ -76.41031, 67.0704 ] }

readShapefile('data.shp', (error, { finished, feature, next }) => {
  // handle read errors
  if (error) {
    return done(error);
  } 
  // handle read finish
  if (finished) {
    return done();
  } 
  // process features
  // and request next chunk from stream
  processFeature(error => next(error));
});

readGeoJSON('data.geojson', (error, { finished, feature, next }) => {
  // handle read errors
  if (error) {
    return done(error);
  } 
  // handle read finish
  if (finished) {
    return done();
  } 
  // process features
  // and request next chunk from stream
  processFeature(error => next(error));
});

Environment

GEO_MAX_LENGTH=0.0001
GEO_MAX_ROTATION=0.39269908169872414
GEO_BBOX=-180,-90,180,90

Test

• Clone this repository

• Install all dependencies

npm install

• Then run test

npm test

Contribute

It will be nice, if you open an issue first so that we can know what is going on, then, fork this repo and push in your ideas. Do not forget to add a bit of test(s) of what value you adding.

Licence

The MIT License (MIT)

Copyright (c) lykmapipo & Contributors

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.