geocsv-info

node.js utility for finding out more information about a spatial csv file

Example

var geocsvinfo = require('geocsv-info');
 
geocsvinfo('example.csv', function(err, info){
    console.log(info);
}); 
 
//result
info = { 
    count: 3,
    separator: '|',
    headers: [ 'id', 'name', 'wkt' ],
    fields: {
        id: 'Number',
        name: 'String',
        wkt: 'String'
    },
    geometryField: { 
        id: 2, 
        name: 'wkt', 
        encoding: 'WKT' 
    },
    extent: { minX: 10, minY: 10, maxX: 45, maxY: 40 } 
};

Supported Geometry Encoding

• 'WKT'
• 'GeoJSON'
• 'PointFromColumns' (latitude/longitude)

Options

• 'separator' : char
  • use specified character as separator instead of autodetecting it
• 'estimate' : int
  • max # of features to compute extent from

Output

• count: int
  • total # of features
• filesize: int
  • total filesize in bytes
• separator: char
• headers: string[]
  • list of all field names
• fields: object
  • an object mapping each fieldname to its basic type ("Number" or "String"). includes geometry fields interpreted as if it was a normal csv
• geometryField: object
  • encoding: "WKT", "GeoJSON", or "PointFromColumns"
  • name: string | object
    • string for WKT, GeoJSON encoding
    • object with x, y properties for geometry with PointFromColumns encoding
  • id: int | object
    • field index
    • int for WKT, GeoJSON encoding
    • object with x, y properties for geometry with PointFromColumns encoding
• extent: object
  • minX : number
  • minY : number
  • maxX : number
  • maxY : number