dbgeo

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).

###### Installation
```
npm install dbgeo
``

###### Example Usage
``javascript
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.




API

$3

##### data (required)
An array of objects, usually results from a database query.

##### options (optional)
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) |


##### callback (required)
A function with two parameters: an error, and a result object.

Examples can be found in ``test/test.js``.

$3


The default options for ``.parse()``. You can set these before using ``.parse()``` if you plan to use the same options continuously.

License

CC0