Convert database query results to GeoJSON or TopoJSON. Inspired by Bryan McBride's PHP-Database-GeoJSON. Works with your database of choice - ideally paired with node-mysql, node-postgres, or mongodb. It is a more flexible version of postgeo and mysql2geojson (both deprecated).
npm install dbgeo
var dbgeo = require('dbgeo')
// Query a database...
dbgeo.parse(data, {
outputFormat: 'geojson'
}, function(error, result) {
// This will log a valid GeoJSON FeatureCollection
console.log(result)
});See test/test.js for more examples.
An array of objects, usually results from a database query.
Configuration object that can contain the following keys:
| argument | description | values | default value |
|---|---|---|---|
geometryType |
Format of input geometry | wkb, wkt, geojson, ll | wkb |
geometryColumn |
Name of column that contains geometry. If input geometry type is "ll", this is an array in the format ['longitude', 'latitude'] |
Any string | geom |
outputFormat |
Desired output format | geojson, topojson | geojson |
precision |
Trim the coordinate precision of the output to a given number of digits using geojson-precision | Any integer | null (will not trim precision) |
quantization |
Value for quantization process, typically specified as powers of ten, see topojson.quantize | Any integer greater than one | null (no quantization) |
A function with two parameters: an error, and a result object.
Examples can be found in test/test.js.
The default options for .parse(). You can set these before using .parse() if you plan to use the same options continuously.
CC0
React
Typescript
Django
Laravel
Facebook
Microsoft
Google
Alibaba
D3
Tencent