OGC GML parser and generator

Purpose

This library parses and generates GML 3.2 application schemas and data sets that conform to:

• ISO 19136:2007, Geographic information — Geography Markup Language

• OGC 07-036

Installation

To install the gem, add the following line to your Gemfile:

gem 'ogc-gml'

And then execute:

$ bundle install

Usage

To use the OGC GML gem in your Ruby project, require it in your code:

require 'ogc-gml'

Then, you can start using the gem’s functionality.

For example:

# Parse a GML file
gml_data = File.read('spec/fixtures/geospatial_jp_iur_3.1/Bridge_class.xml')
gml = Ogc::Gml::Dictionary.from_xml(gml_data)

# Access the loaded GML Dictionary
gml_dictionary = gml.dictionary
gml_dictionary.features.each do |feature|
  puts feature.name
end

It is possible to utilize the library to develop an Executable Test Suite for GML, similar to the OGC ETS for GML 3.2.

Test suites

The OGC GML gem includes test fixtures from the following sources:

GML dictionary

From the Cabinet Office, Government Of Japan, i-UR data. Downloaded from: here.

GML objects

Curve, Polygon, Line, Surface, etc. from the test suite of OGC ETS for GML 3.2.

Contributing

Contributions are welcome! If you find any issues or have suggestions for improvements, please open an issue or submit a pull request.

Copyright and license

Copyright Ribose.

The OGC GML gem is released under the MIT License.