Package Exports
- turf-area
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Readme
turf-area
calculate the area of a polygon or multipolygon feature
turf.area(input)
Takes a one or more features and returns their area in square meters.
Parameters
parameter | type | description |
---|---|---|
input |
Feature,FeatureCollection | input features |
Example
var polygons = {
"type": "FeatureCollection",
"features": [
{
"type": "Feature",
"properties": {},
"geometry": {
"type": "Polygon",
"coordinates": [[
[-67.031021, 10.458102],
[-67.031021, 10.53372],
[-66.929397, 10.53372],
[-66.929397, 10.458102],
[-67.031021, 10.458102]
]]
}
}, {
"type": "Feature",
"properties": {},
"geometry": {
"type": "Polygon",
"coordinates": [[
[-66.919784, 10.397325],
[-66.919784, 10.513467],
[-66.805114, 10.513467],
[-66.805114, 10.397325],
[-66.919784, 10.397325]
]]
}
}
]
};
var area = turf.area(polygons);
//=area
Returns Number
, area in square meters
Installation
Requires nodejs.
$ npm install turf-area
Tests
$ npm test