本文整理汇总了TypeScript中geojson-helpers.writeFileSync函数的典型用法代码示例。如果您正苦于以下问题：TypeScript writeFileSync函数的具体用法？TypeScript writeFileSync怎么用？TypeScript writeFileSync使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了writeFileSync函数的4个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的TypeScript代码示例。
示例1: require
import * as turf from '@turf/helpers'
import * as helpers from 'geojson-helpers'
const data: GeoJSON.FeatureCollection<any> = require('./halifax-buildings.json')
const collection = turf.featureCollection(
data.features.map(feature => {
feature.properties = {building: 'yes'}
return feature
})
)
helpers.writeFileSync('halifax-buildings.geojson', collection)
示例2: function
}, function(err: any, data: GeoJSON.FeatureCollection<GeoJSON.Point>) {
helpers.writeFileSync('address-points.geojson', data)
});示例3:
import * as helpers from 'geojson-helpers'
const geojson = helpers.readFileSync('./GEBADR-address-points.geojson')
geojson.features = geojson.features.map(feature => {
feature.properties.source = 'Canton Berne'
return feature
})
helpers.writeFileSync('./GEBADR-address-points-compact.geojson', geojson, ['addr:housenumber', 'addr:postcode', 'addr:city', 'addr:street', 'source'])
示例4: require
import * as concaveman from 'concaveman'
import * as helpers from 'geojson-helpers'
import * as turf from '@turf/turf'
const data = './halifax-buildings.json'
const geojson: GeoJSON.FeatureCollection<any> = require(data)
const points: Array<Array<number>> = []
geojson.features.map(feature => {
turf.explode(feature).features.map(point => {
points.push(point.geometry.coordinates)
})
})
const extent = turf.polygon([concaveman(points)])
const buffer = turf.buffer(extent, 500, 'meters')
const simple: any = turf.simplify(buffer, 0.001, false)
helpers.writeFileSync('./extent.geojson', turf.featureCollection([extent]))
helpers.writeFileSync('./buffer.geojson', turf.featureCollection([buffer]))
helpers.writeFileSync('./simple.geojson', turf.featureCollection([simple]))