Geographic intersect utilities using WGS84 datum

Installation

$ npm install wgs84-intersect-util

Methods

intersectPolygons(searchWithin, polygons)

Intersect a list of GeoJSON polygons with a given GeoJSON polygon

searchWithin: object, GeoJSON polygon

polygons: array, GeoJSON polygons

Returns

array, a list of polygons that intersect searchWithin

intersectLineBBox(line, bbox)

Intersect a GeoJSON line with a bounding box

line: object, GeoJSON LineString

bbox: array, an array of bounding box coordinates in the form: [xLow, yLow, xHigh, yHigh]

Returns

array, a list of GeoJSON points that represent intersection points on bbox

intersectLines(searchWithin, lines)

Intersect a list of GeoJSON LineStrings with a given GeoJSON polygon

searchWithin: object, GeoJSON polygon

lines: array, GeoJSON LineStrings

Returns

array, a list of LineStrings that intersect searchWithin

Running Tests

Install the development dependencies:

$ npm install

Then run the tests:

$ npm test

Code Coverage

Install the development dependencies:

$ npm install

Then run coverage

$ npm run coverage

View coverage reports

$ firefox coverage/lcov-report/index.html

Browser Bundle

$ npm run build