jpgis-convert v1.0.4

JPGIS GML converter

JPGIS GML to GeoJSON converter for building peripheral lines (=BldA) for node.

Installation

npm i jpgis-convert

Usage

Example

const convert = require('jpgis-convert');
convert(['input1.xml', 'input2.xml'], {
	output: 'output.geojson'
});

convert(files [, options , callback])

• files - Array of String of BldA.xml file path
• options: - output - String of an output file path. If you don't set it, convert() outputs to stdout. - typeIds - Object of building type name to ID mapper. Default:

  	```
  	{
  		'普通建物': 0,
  		'堅ろう建物': 1,
  		'普通無壁舎': 2,
  		'堅ろう無壁舎': 3
  	}
  	```
  	- ```ignoreTypes``` - Building type name ```Set``` to ignore.

• callback - The Function is called when convert() finished. It takes no arguments.

A full option example:

const convert = require('jpgis-convert');
convert(['input1.xml', 'input2.xml'], {
	output: 'output.geojson',
	typeIds: {
		'普通建物': 0,
		'堅ろう建物': 1
	},
	ignoreTypes: new Set(['普通無壁舎', '堅ろう無壁舎'])
}, () => console.log('finished'));

Background and purpose

In May 2016, I found the tool FGDV of the government of Japan can't handle coordinates in <gml:interior> tags in <BldA> as individual ring. Coordinates in <gml:interior> and <gml:exterior> tags are merged to a ring. It converts JPGIS GML to broken shape files. PSEA had a same problem. I needed a tool to convert JPGIS GML to right GeoJSON for my project.