ogrinfo.js

var gdal = require('../lib/gdal.js');
var util = require('util');

var filename = process.argv[2];
if (!filename) {
	console.error('Filename must be provided');
	process.exit(1);
}

var ds = gdal.open(filename);

var driver = ds.driver;
var driver_metadata = driver.getMetadata();
if (driver_metadata['DCAP_VECTOR'] !== 'YES') {
	console.error('Source file is not a vector');
	process.exit(1);
}

console.log('Driver = ' + driver.description);
console.log('');

// layers
var i = 0;
console.log('Layers: ');
ds.layers.forEach(function(layer) {
	console.log((i++) + ': ' + layer.name);

	console.log('  Geometry Type = ' + gdal.Geometry.getName(layer.geomType));
	console.log('  Spatial Reference = ' + (layer.srs ? layer.srs.toWKT() : 'null'));

	var extent = layer.getExtent();
	console.log('  Extent: ');
	console.log('    minX = ' + extent.minX);
	console.log('    minY = ' + extent.minY);
	console.log('    maxX = ' + extent.maxX);
	console.log('    maxY = ' + extent.maxY);

	console.log('  Fields: ');
	layer.fields.forEach(function(field) {
		console.log('    -' + field.name + ' (' + field.type + ')');
	});

	console.log('  Feature Count = ' + layer.features.count());
});